Concord City Council
August 26, 2025

AGENCY; and, (3) IOAI has issued its final ICR review letter. The CONSULTANT MUST SUBMIT ITS FINAL INVOICE TO LOCAL AGENCY no later than sixty (60) calendar days after occurrence of the last of these items. The accepted ICR will apply to this AGREEMENT and all other agreements executed between LOCAL AGENCY and the CONSULTANT, either as a prime or subconsultant, with the same fiscal period ICR.

ARTICLE X SUBCONTRACTING
A. Nothing contained in this AGREEMENT or otherwise, shall create any contractual relation between the LOCAL AGENCY and any Subconsultants, and no subagreement shall relieve the CONSULTANT of its responsibilities and obligations hereunder. The CONSULTANT agrees to be as fully responsible to the LOCAL AGENCY for the acts and omissions of its Subconsultants and of persons either directly or indirectly employed by any of them as it is for the acts and omissions of persons directly employed by the CONSULTANT. The CONSULTANT's obligation to pay its Subconsultants is an independent obligation from the LOCAL AGENCY's obligation to make payments to the CONSULTANT.

B. The CONSULTANT shall perform the work contemplated with resources available within its own organization and no portion of the work shall be subcontracted without written authorization by the LOCAL AGENCY Contract Administrator, except that which is expressly identified in the CONSULTANT’s approved Cost Proposal.

C. Any subagreement entered into as a result of this AGREEMENT, shall contain all the provisions stipulated in this entire AGREEMENT to be applicable to Subconsultants unless otherwise noted.

D. CONSULTANT shall pay its Subconsultants within Fifteen (15) calendar days from receipt of each payment made to the CONSULTANT by the LOCAL AGENCY.

E. Any substitution of Subconsultants must be approved in writing by the LOCAL AGENCY Contract Administrator in advance of assigning work to a substitute Subconsultant.

ARTICLE XI EQUIPMENT PURCHASE AND OTHER CAPITAL EXPENDITURES A. Prior authorization in writing by LOCAL AGENCY’s Contract Administrator shall be required before CONSULTANT enters into any unbudgeted purchase order, or subcontract exceeding five thousand dollars ($5,000) for supplies, equipment, or CIVIL DESIGN & RELATED services.

CONSULTANT shall provide an evaluation of the necessity or desirability of incurring such costs.

B. For purchase of any item, service, or consulting work not covered in CONSULTANT’s approved Cost Proposal and exceeding five thousand dollars ($5,000), with prior authorization by LOCAL AGENCY’s Contract Administrator, three competitive quotations must be submitted with the request, or the absence of bidding must be adequately justified.

C. Any equipment purchased with funds provided under the terms of this AGREEMENT is subject to the following:

1. CONSULTANT shall maintain an inventory of all nonexpendable property. Nonexpendable property is defined as having a useful life of at least two years and an acquisition cost of five thousand dollars ($5,000) or more. If the purchased equipment needs replacement and is sold or traded in, LOCAL AGENCY shall receive a proper refund or credit at the conclusion of the AGREEMENT, or if the AGREEMENT is terminated, CONSULTANT may either keep the equipment and credit LOCAL AGENCY in an amount equal to its fair market value, or sell such equipment at the best price obtainable at a public or private sale, in accordance with established LOCAL AGENCY procedures; and credit LOCAL AGENCY in an amount equal to the sales price. If CONSULTANT elects to keep the equipment, fair market value shall be determined at

CONSULTANT’s expense, on the basis of a competent independent appraisal of such equipment. Appraisals shall be obtained from an appraiser mutually agreeable to by LOCAL AGENCY and CONSULTANT, if it is determined to sell the equipment, the terms and conditions of such sale must be approved in advance by LOCAL AGENCY.

2. Regulation 2 CFR Part 200 requires a credit to Federal funds when participating equipment with a fair market value greater than five thousand dollars ($5,000) is credited to the project.

ARTICLE XII STATE PREVAILING WAGE RATES
A. No CONSULTANT or Subconsultant may be awarded an AGREEMENT containing public work elements unless registered with the Department of Industrial Relations (DIR) pursuant to Labor Code §1725.5. Registration with DIR must be maintained throughout the entire term of this AGREEMENT, including any subsequent amendments.

B. The CONSULTANT shall comply with all of the applicable provisions of the California Labor Code requiring the payment of prevailing wages. The General Prevailing Wage Rate Determinations applicable to work under this AGREEMENT are available and on file with the Department of Transportation's Regional/District Labor Compliance Officer (https://dot.ca.gov/programs/construction/labor-compliance). These wage rates are made a specific part of this AGREEMENT by reference pursuant to Labor Code §1773.2 and will be applicable to work performed at a construction project site. Prevailing wages will be applicable to all inspection work performed at LOCAL AGENCY construction sites, at LOCAL AGENCY facilities and at off-site locations that are set up by the construction contractor or one of its subcontractors solely and specifically to serve LOCAL AGENCY projects. Prevailing wage requirements do not apply to inspection work performed at the facilities of vendors and commercial materials suppliers that provide goods and services to the general public.

C. General Prevailing Wage Rate Determinations applicable to this project may also be obtained from the Department of Industrial Relations Internet site at http://www.dir.ca.gov.

D. Payroll Records

1. Each CONSULTANT and Subconsultant shall keep accurate certified payroll records and supporting documents as mandated by Labor Code §1776 and as defined in 8 CCR §16000 showing the name, address, social security number, work classification, straight time and overtime hours worked each day and week, and the actual per diem wages paid to each journeyman, apprentice, worker, or other employee employed by the CONSULTANT or Subconsultant in connection with the public work. Each payroll record shall contain or be verified by a written declaration that it is made under penalty of perjury, stating both of the following:
a. The information contained in the payroll record is true and correct. b. The employer has complied with the requirements of Labor Code §1771, §1811, and §1815 for any work performed by his or her employees on the public works project.

2. The payroll records enumerated under paragraph (1) above shall be certified as correct by the CONSULTANT under penalty of perjury. The payroll records and all supporting documents shall be made available for inspection and copying by LOCAL AGENCY representative’s at all reasonable hours at the principal office of the CONSULTANT. The CONSULTANT shall provide copies of certified payrolls or permit inspection of its records as follows:
a. A certified copy of an employee's payroll record shall be made available for inspection or furnished to the employee or the employee's authorized representative on request.

b. A certified copy of all payroll records enumerated in paragraph (1) above, shall be made available for inspection or furnished upon request to a representative of LOCAL AGENCY, the Division of Labor Standards Enforcement and the Division of Apprenticeship Standards of the Department of Industrial Relations. Certified payrolls submitted to LOCAL AGENCY, the Division of Labor Standards Enforcement and the Division of Apprenticeship Standards shall not be altered or obliterated by the CONSULTANT.
c. The public shall not be given access to certified payroll records by the CONSULTANT. The CONSULTANT is required to forward any requests for certified payrolls to the LOCAL AGENCY Contract Administrator by both email and regular mail on the business day following receipt of the request.

3. Each CONSULTANT shall submit a certified copy of the records enumerated in paragraph (1) above, to the entity that requested the records within ten (10) calendar days after receipt of a written request.

4. Any copy of records made available for inspection as copies and furnished upon request to the public or any public agency by LOCAL AGENCY shall be marked or obliterated in such a manner as to prevent disclosure of each individual's name, address, and social security number. The name and address of the CONSULTANT or Subconsultant performing the work shall not be marked or obliterated.

5. The CONSULTANT shall inform LOCAL AGENCY of the location of the records enumerated under paragraph (1) above, including the street address, city and county, and shall, within five (5) working days, provide a notice of a change of location and address.

6. The CONSULTANT or Subconsultant shall have ten (10) calendar days in which to comply subsequent to receipt of written notice requesting the records enumerated in paragraph (1) above. In the event the CONSULTANT or Subconsultant fails to comply within the ten (10) day period, he or she shall, as a penalty to LOCAL AGENCY, forfeit one hundred dollars ($100) for each calendar day, or portion thereof, for each worker, until strict compliance is effectuated.

Such penalties shall be withheld by LOCAL AGENCY from payments then due. CONSULTANT is not subject to a penalty assessment pursuant to this section due to the failure of a Subconsultant to comply with this section.

E. When prevailing wage rates apply, the CONSULTANT is responsible for verifying compliance with certified payroll requirements. Invoice payment will not be made until the invoice is approved by the LOCAL AGENCY Contract Administrator.

F. Penalty

1. The CONSULTANT and any of its Subconsultants shall comply with Labor Code §1774 and §1775. Pursuant to Labor Code §1775, the CONSULTANT and any Subconsultant shall forfeit to the LOCAL AGENCY a penalty of not more than two hundred dollars ($200) for each calendar day, or portion thereof, for each worker paid less than the prevailing rates as determined by the Director of DIR for the work or craft in which the worker is employed for any public work done under the AGREEMENT by the CONSULTANT or by its Subconsultant in violation of the requirements of the Labor Code and in particular, Labor Code §§1770 to 1780, inclusive.

2. The amount of this forfeiture shall be determined by the Labor Commissioner and shall be based on consideration of mistake, inadvertence, or neglect of the CONSULTANT or Subconsultant in failing to pay the correct rate of prevailing wages, or the previous record of the CONSULTANT or Subconsultant in meeting their respective prevailing wage obligations, or the willful failure by the CONSULTANT or Subconsultant to pay the correct rates of prevailing wages. A mistake, inadvertence, or neglect in failing to pay the correct rates of prevailing wages is not excusable if the CONSULTANT or Subconsultant had knowledge of the obligations under

the Labor Code. The CONSULTANT is responsible for paying the appropriate rate, including any escalations that take place during the term of the AGREEMENT.

3. In addition to the penalty and pursuant to Labor Code §1775, the difference between the prevailing wage rates and the amount paid to each worker for each calendar day or portion thereof for which each worker was paid less than the prevailing wage rate shall be paid to each worker by the CONSULTANT or Subconsultant.

4. If a worker employed by a Subconsultant on a public works project is not paid the general prevailing per diem wages by the Subconsultant, the prime CONSULTANT of the project is not liable for the penalties described above unless the prime CONSULTANT had knowledge of that failure of the Subconsultant to pay the specified prevailing rate of wages to those workers or unless the prime CONSULTANT fails to comply with all of the following requirements:
a. The AGREEMENT executed between the CONSULTANT and the Subconsultant for the performance of work on public works projects shall include a copy of the requirements in Labor Code §§ 1771, 1775, 1776, 1777.5, 1813, and 1815. b. The CONSULTANT shall monitor the payment of the specified general prevailing rate of per diem wages by the Subconsultant to the employees by periodic review of the certified payroll records of the Subconsultant.
c. Upon becoming aware of the Subconsultant’s failure to pay the specified prevailing rate of wages to the Subconsultant’s workers, the CONSULTANT shall diligently take corrective action to halt or rectify the failure, including but not limited to, retaining sufficient funds due the Subconsultant for work performed on the public works project. d. Prior to making final payment to the Subconsultant for work performed on the public works project, the CONSULTANT shall obtain an affidavit signed under penalty of perjury from the Subconsultant that the Subconsultant had paid the specified general prevailing rate of per diem wages to the Subconsultant’s employees on the public works project and any amounts due pursuant to Labor Code §1813.

5. Pursuant to Labor Code §1775, LOCAL AGENCY shall notify the CONSULTANT on a public works project within fifteen (15) calendar days of receipt of a complaint that a Subconsultant has failed to pay workers the general prevailing rate of per diem wages.

6. If LOCAL AGENCY determines that employees of a Subconsultant were not paid the general prevailing rate of per diem wages and if LOCAL AGENCY did not retain sufficient money under the AGREEMENT to pay those employees the balance of wages owed under the general prevailing rate of per diem wages, the CONSULTANT shall withhold an amount of moneys due the Subconsultant sufficient to pay those employees the general prevailing rate of per diem wages if requested by LOCAL AGENCY.

G. Hours of Labor
Eight (8) hours labor constitutes a legal day's work. The CONSULTANT shall forfeit, as a penalty to the LOCAL AGENCY, twenty-five dollars ($25) for each worker employed in the execution of the AGREEMENT by the CONSULTANT or any of its Subconsultants for each calendar day during which such worker is required or permitted to work more than eight (8) hours in any one calendar day and forty (40) hours in any one calendar week in violation of the provisions of the Labor Code, and in particular §§1810 to 1815 thereof, inclusive, except that work performed by employees in excess of eight (8) hours per day, and forty (40) hours during any one week, shall be permitted upon compensation for all hours worked in excess of eight (8) hours per day and forty (40) hours in any week, at not less than one and one-half (1.5) times the basic rate of pay, as provided in §1815.

H. Employment of Apprentices

1. Where either the prime AGREEMENT or the subagreement exceeds thirty thousand dollars ($30,000), the CONSULTANT and any subconsultants under him or her shall comply with all

applicable requirements of Labor Code §§ 1777.5, 1777.6 and 1777.7 in the employment of apprentices.

2. CONSULTANTs and subconsultants are required to comply with all Labor Code requirements regarding the employment of apprentices, including mandatory ratios of journey level to apprentice workers. Prior to commencement of work, CONSULTANT and subconsultants are advised to contact the DIR Division of Apprenticeship Standards website at https://www.dir.ca.gov/das/, for additional information regarding the employment of apprentices and for the specific journey-to- apprentice ratios for the AGREEMENT work. The CONSULTANT is responsible for all subconsultants’ compliance with these requirements.

Penalties are specified in Labor Code §1777.7.

ARTICLE XIII CONFLICT OF INTEREST
A. During the term of this AGREEMENT, the CONSULTANT shall disclose any financial, business, or other relationship with LOCAL AGENCY that may have an impact upon the outcome of this AGREEMENT or any ensuing LOCAL AGENCY construction project. The CONSULTANT shall also list current clients who may have a financial interest in the outcome of this AGREEMENT or any ensuing LOCAL AGENCY construction project which will follow.

B. CONSULTANT certifies that it has disclosed to LOCAL AGENCY any actual, apparent, or potential conflicts of interest that may exist relative to the services to be provided pursuant to this AGREEMENT. CONSULTANT agrees to advise LOCAL AGENCY of any actual, apparent or potential conflicts of interest that may develop subsequent to the date of execution of this AGREEMENT. CONSULTANT further agrees to complete any statements of economic interest if required by either LOCAL AGENCY ordinance or State law.

C. The CONSULTANT hereby certifies that it does not now have nor shall it acquire any financial or business interest that would conflict with the performance of services under this AGREEMENT.

D. The CONSULTANT hereby certifies that the CONSULTANT or subconsultant and any firm affiliated with the CONSULTANT or subconsultant that bids on any construction contract or on any Agreement to provide construction inspection for any construction project resulting from this AGREEMENT, has established necessary controls to ensure a conflict of interest does not exist.

An affiliated firm is one, which is subject to the control of the same persons, through joint ownership or otherwise.

ARTICLE XIV REBATES, KICKBACKS OR OTHER UNLAWFUL CONSIDERATION The CONSULTANT warrants that this AGREEMENT was not obtained or secured through rebates, kickbacks or other unlawful consideration either promised or paid to any LOCAL AGENCY employee.

For breach or violation of this warranty, LOCAL AGENCY shall have the right, in its discretion, to terminate this AGREEMENT without liability, to pay only for the value of the work actually performed, or to deduct from this AGREEMENT price or otherwise recover the full amount of such rebate, kickback or other unlawful consideration.

ARTICLE XV PROHIBITION OF EXPENDING LOCAL AGENCY, STATE, OR FEDERAL FUNDS

FOR LOBBYING
A. The CONSULTANT certifies, to the best of his or her knowledge and belief, that:

1. No State, Federal, or LOCAL AGENCY appropriated funds have been paid or will be paid, by or on behalf of the CONSULTANT, to any person for influencing or attempting to influence an officer or employee of any local, State, or Federal agency, a Member of the State Legislature or United States Congress, an officer or employee of the Legislature or Congress, or any employee of a Member of the Legislature or Congress in connection with the awarding or making of this AGREEMENT, or with the extension, continuation, renewal, amendment, or modification of this AGREEMENT.

2. If any funds other than Federal appropriated funds have been paid or will be paid to any person for influencing or attempting to influence an officer or employee of any agency, a Member of Congress, an officer or employee of Congress, or an employee of a member of Congress in connection with this AGREEMENT, the CONSULTANT shall complete and submit Standard Form-LLL, “Disclosure Form to Report Lobbying,” in accordance with its instructions.

B. This certification is a material representation of fact upon which reliance was placed when this transaction was made or entered into. Submission of this certification is a prerequisite for making or entering into this transaction imposed by 31 U.S.C. §1352. Any person who fails to file the required certification shall be subject to a civil penalty of not less than ten thousand dollars ($10,000) and not more than one hundred thousand dollars ($100,000) for each such failure.

C. The CONSULTANT also agrees by signing this document that he or she shall require that the language of this certification be included in all lower tier subagreements, which exceed one hundred thousand dollars ($100,000), and that all such subrecipients shall certify and disclose accordingly.

ARTICLE XVI NON-DISCRIMINATION CLAUSE AND STATEMENT OF COMPLIANCE A. The CONSULTANT’s signature affixed herein and dated shall constitute a certification under penalty of perjury under the laws of the State of California that the CONSULTANT has, unless exempt, complied with the nondiscrimination program requirements of Gov. Code §12990 and 2 CCR § 8103.

B. During the performance of this AGREEMENT, CONSULTANT and its subconsultants shall not deny the AGREEMENT’s benefits to any person on the basis of race, religious creed, color, national origin, ancestry, physical disability, mental disability, medical condition, genetic information, marital status, sex, gender, gender identity, gender expression, age, sexual orientation, or military and veteran status, nor shall they unlawfully discriminate, harass, or allow harassment against any employee or applicant for employment because of race, religious creed, color, national origin, ancestry, physical disability, mental disability, medical condition, genetic information, marital status, sex, gender, gender identity, gender expression, age, sexual orientation, or military and veteran status. CONSULTANT and subconsultants shall insure that the evaluation and treatment of their employees and applicants for employment are free from such discrimination and harassment.

C. CONSULTANT and subconsultants shall comply with the provisions of the Fair Employment and Housing Act (Gov. Code §12990 et seq.), the applicable regulations promulgated there under (2 CCR §11000 et seq.), the provisions of Gov. Code §§11135-11139.5, and the regulations or standards adopted by LOCAL AGENCY to implement such article. The applicable regulations of the Fair Employment and Housing Commission implementing Gov. Code §12990 (a-f), set forth 2 CCR §§8100-8504, are incorporated into this AGREEMENT by reference and made a part hereof as if set forth in full.

D. CONSULTANT shall permit access by representatives of the Department of Fair Employment and Housing and the LOCAL AGENCY upon reasonable notice at any time during the normal business hours, but in no case less than twenty-four (24) hours’ notice, to such of its books, records, accounts, and all other sources of information and its facilities as said Department or LOCAL AGENCY shall require to ascertain compliance with this clause.

E. CONSULTANT and its subconsultants shall give written notice of their obligations under this clause to labor organizations with which they have a collective bargaining or other Agreement.

F. CONSULTANT shall include the nondiscrimination and compliance provisions of this clause in all subcontracts to perform work under this AGREEMENT.

G. The CONSULTANT, with regard to the work performed under this AGREEMENT, shall act in accordance with Title VI of the Civil Rights Act of 1964 (42 U.S.C. §2000d et seq.). Title VI provides that the recipients of federal assistance will implement and maintain a policy of nondiscrimination in which no person in the United States shall, on the basis of race, color, national origin, religion, sex, age, disability, be excluded from participation in, denied the benefits of or subject to discrimination under any program or activity by the recipients of federal assistance or their assignees and successors in interest.

H. The CONSULTANT shall comply with regulations relative to non-discrimination in federally- assisted programs of the U.S. Department of Transportation (49 CFR Part 21 - Effectuation of Title VI of the Civil Rights Act of 1964). Specifically, the CONSULTANT shall not participate either directly or indirectly in the discrimination prohibited by 49 CFR §21.5, including employment practices and the selection and retention of Subconsultants.

ARTICLE XVII DEBARMENT AND SUSPENSION CERTIFICATION
A. The CONSULTANT’s signature affixed herein shall constitute a certification under penalty of perjury under the laws of the State of California, that the CONSULTANT or any person associated therewith in the capacity of owner, partner, director, officer or manager:

1. Is not currently under suspension, debarment, voluntary exclusion, or determination of ineligibility by any federal agency;

2. Has not been suspended, debarred, voluntarily excluded, or determined ineligible by any federal agency within the past three (3) years;

3. Does not have a proposed debarment pending; and

4. Has not been indicted, convicted, or had a civil judgment rendered against it by a court of competent jurisdiction in any matter involving fraud or official misconduct within the past three (3) years.

B. Any exceptions to this certification must be disclosed to LOCAL AGENCY. Exceptions will not necessarily result in denial of recommendation for award, but will be considered in determining responsibility. Disclosures must indicate the party to whom the exceptions apply, the initiating agency, and the dates of agency action.

C. Exceptions to the Federal Government Excluded Parties List System maintained by the U.S.

General Services Administration are to be determined by FHWA.

ARTICLE XVIII DISADVANTAGED BUSINESS ENTERPRISES (DBE) PARTICIPATION A. This AGREEMENT is subject to 49 CFR Part 26 entitled “Participation by Disadvantaged Business Enterprises in Department of Transportation Financial Assistance Programs”. CONSULTANTs who enter into a federally-funded agreement will assist the LOCAL AGENCY in a good faith effort to achieve California's statewide overall DBE goal.

B. The goal for DBE participation for this AGREEMENT is 15%. Participation by DBE CONSULTANT or subconsultants shall be in accordance with information contained in Exhibit 10-O2: Consultant Contract DBE Commitment attached hereto and incorporated as part of the AGREEMENT. If a DBE subconsultant is unable to perform, CONSULTANT must make a good faith effort to replace him/her with another DBE subconsultant, if the goal is not otherwise met.

C. CONSULTANT can meet the DBE participation goal by either documenting commitments to DBEs to meet the AGREEMENT goal, or by documenting adequate good faith efforts to meet the AGREEMENT goal. An adequate good faith effort means that the CONSULTANT must show that it took all necessary and reasonable steps to achieve a DBE goal that, by their scope, intensity, and appropriateness to the objective, could reasonably be expected to meet the DBE goal. If CONSULTANT has not met the DBE goal, complete and submit Exhibit 15-H: DBE Information – Good Faith Efforts to document efforts to meet the goal. Refer to 49 CFR Part 26 for guidance regarding evaluation of good faith efforts to meet the DBE goal.

D. DBEs and other small businesses, as defined in 49 CFR Part 26 are encouraged to participate in the performance of AGREEMENTs financed in whole or in part with federal funds. The LOCAL AGENCY, CONSULTANT or subconsultant shall not discriminate on the basis of race, color, national origin, or sex in the performance of this contract. The CONSULTANT shall carry out applicable requirements of 49 CFR part 26 in the award and administration of DOT-assisted contracts. Failure by the CONSULTLANT to carry out these requirements is a material breach of this AGREEMENT, which may result in the termination of this AGREEMENT or such other remedy as the LOCAL AGENCY deems appropriate, which may include, but is not limited to:
(1) Withholding monthly progress payments;
(2) Assessing sanctions;
(3) Liquidated damages; and/or
(4) Disqualifying the contractor from future bidding as non-responsible E. A DBE firm may be terminated only with prior written approval from LOCAL AGENCY and only for the reasons specified in 49 CFR §26.53(f). Prior to requesting LOCAL AGENCY consent for the termination, CONSULTANT must meet the procedural requirements specified in 49 CFR §26.53(f).

If a DBE subconsultant is unable to perform, CONSULTANT must make a good faith effort to replace him/her with another DBE subconsultant, if the goal is not otherwise met.

F. Consultant shall not be entitled to any payment for such work or material unless it is performed or supplied by the listed DBE or by other forces (including those of Consultant) pursuant to prior written authorization of the LOCAL AGENCY’s Contract Administrator.

G. A DBE is only eligible to be counted toward the AGREEMENT goal if it performs a commercially useful function (CUF) on the AGREEMENT. CUF must be evaluated on an agreement by agreement basis. A DBE performs a Commercially Useful Function (CUF) when it is responsible for execution of the work of the AGREEMENT and is carrying out its responsibilities by actually performing, managing, and supervising the work involved. To perform a CUF, the DBE must also be responsible, with respect to materials and supplies used on the AGREEMENT, for negotiating price, determining quality and quantity, ordering the material and installing (where applicable), and paying for the material itself. To determine whether a DBE is performing a CUF, evaluate the

amount of work subcontracted, industry practices, whether the amount the firm is to be paid under the AGREEMENT is commensurate with the work it is actually performing, and other relevant factors.

H. A DBE does not perform a CUF if its role is limited to that of an extra participant in a transaction, AGREEMENT, or project through which funds are passed in order to obtain the appearance of DBE participation. In determining whether a DBE is such an extra participant, examine similar transactions, particularly those in which DBEs do not participate.

I. If a DBE does not perform or exercise responsibility for at least thirty percent (30%) of the total cost of its AGREEMENT with its own work force, or the DBE subcontracts a greater portion of the work of the AGREEMENT than would be expected on the basis of normal industry practice for the type of work involved, it will be presumed that it is not performing a CUF.

J. CONSULTANT shall maintain records of materials purchased or supplied from all subcontracts entered into with certified DBEs. The records shall show the name and business address of each DBE or vendor and the total dollar amount actually paid each DBE or vendor, regardless of tier.

The records shall show the date of payment and the total dollar figure paid to all firms. DBE prime CONSULTANT’s shall also show the date of work performed by their own forces along with the corresponding dollar value of the work.

K. Upon completion of the AGREEMENT, a summary of these records shall be prepared and submitted on the form entitled, Exhibit 17-F: Final Report-Utilization of Disadvantaged Business Enterprise (DBE) First-Tier Subconsultants, certified correct by CONSULTANT or CONSULTANT’s authorized representative and shall be furnished to the Contract Administrator with the final invoice. Failure to provide the summary of DBE payments with the final invoice will result in twenty-five percent (25%) of the dollar value of the invoice being withheld from payment until the form is submitted. The amount will be returned to CONSULTANT when a satisfactory “Final Report-Utilization of Disadvantaged Business Enterprises (DBE), First-Tier Subconsultants” is submitted to the Contract Administrator.

L. If a DBE subconsultant is decertified during the life of the AGREEMENT, the decertified subconsultant shall notify CONSULTANT in writing with the date of decertification. If a subconsultant becomes a certified DBE during the life of the AGREEMENT, the subconsultant shall notify CONSULTANT in writing with the date of certification. Any changes should be reported to LOCAL AGENCY’s Contract Administrator within thirty (30) calendar days.

M. Any subcontract entered into as a result of this AGREEMENT shall contain all of the provisions of this section.

ARTICLE XIX INSURANCE
A. Prior to commencement of the work described herein, CONSULTANT shall furnish LOCAL AGENCY a Certificate of Insurance documenting the following insurance coverage:

1. Commercial General Liability Policy: CONSULTANT shall maintain during the term of this Agreement a commercial general liability insurance policy providing coverage of at least one million ($1,000,000) combined single limit per occurrence or two million ($2,000,000) aggregate limit for bodily injury, personal injury and property damage. The coverage shall contain no special limitations on the scope or protection afforded to LOCAL AGENCY, its officers, officials, agents, employees, or volunteers. CONSULTANT’s insurance coverage shall be primary insurance with respect to LOCAL AGENCY, its officers, officials, agents, employees, and volunteers. Any insurance, risk pooling arrangement, or self-insurance maintained by LOCAL AGENCY, its officers, officials, agents, employees, or volunteers shall be in excess of CONSULTANT’s insurance and shall not contribute with it.

2. Automobile Liability Coverage. CONSULTANT shall maintain automobile liability insurance covering all vehicles used in the performance of this Agreement providing a one million dollar ($1,000,000) combined single limit per occurrence for bodily injury, personal injury, and property damage.

3. Professional Liability Coverage (Errors and Omissions). CONSULTANT shall maintain professional liability insurance with coverage for all negligent errors, acts or omissions committed by CONSULTANT, its agents and employees in the performance of this Agreement. The amount of this insurance shall be not less than one million dollars ($1,000,000) on a claims made annual aggregate basis or a combined single limit per occurrence basis.

4. Workers Compensation: CONSULTANT covenants that it will insure itself against liability for Workers' Compensation pursuant to the provisions of California Labor Code §3700, et seq.

CONSULTANT shall, at all times, upon demand of the LOCAL AGENCY, furnish proof that Workers' Compensation Insurance is being maintained by it in force and effect in accordance with the California Labor Code. The insurer shall also agree to waive all rights of subrogation against the LOCAL AGENCY, its officers, officials, agents, employees and volunteers for losses arising from work performed under this Agreement. This provision shall not apply upon written verification by CONSULTANT that CONSULTANT has no employees.

If CONSULTANT maintains broader coverage and/or higher limits than the minimums shown above, the LOCAL AGENCY requires and shall be entitled to the broader coverage and/or higher limits maintained by CONSULTANT. A lapse in any required insurance coverage during this Agreement shall be a breach of this Agreement.

The policies are to contain, or be endorsed to contain the following provisions:
i. Additional Insured. LOCAL AGENCY, its officers, officials, agents, employees, and volunteers are to be covered as an additional insured as respects: Liability arising out of activities performed by or on behalf of CONSULTANT and operations of CONSULTANT, premises owned, occupied, or used by CONSULTANT. The coverage shall contain no special limitations on the scope or protection afforded to LOCAL AGENCY, its officers, officials, agents, employees, or volunteers.

Except for worker's compensation and professional liability insurance, the policies mentioned in this subsection shall name LOCAL AGENCY as an additional insured and provide for notice of cancellation to LOCAL AGENCY. CONSULTANT shall also provide timely and prompt notice to LOCAL AGENCY if CONSULTANT receives any notice of cancellation or nonrenewal from its insurer.
ii. Primary Coverage. CONSULTANT'S insurance coverage shall be primary insurance with respect to LOCAL AGENCY, its officers, officials, agents, employees, and volunteers. Any insurance, risk pooling arrangement, or self-insurance maintained by LOCAL AGENCY, its officers, officials, agents, employees, or volunteers shall be in excess of CONSULTANT'S insurance and shall not contribute with it. iii. Reporting Provisions. Any failure to comply with the reporting provisions of the policy shall not affect the coverage provided to the LOCAL AGENCY, its officers, officials, agents, employees, or volunteers.
iv. Verification of Coverage. CONSULTANT shall furnish LOCAL AGENCY with certificates of insurance and the original endorsements effecting coverage required

by this Agreement. The certificates and endorsements for each insurance policy are to be signed by a person authorized by that insurer to bind coverage on its behalf.

The aforementioned policies shall be issued by an insurance carrier having a rating of Best A-7 or better which is satisfactory to the City Attorney and shall be delivered to LOCAL AGENCY at the time of the execution of this Agreement or before work commences. Such policies and certificates shall be in a form approved by the City Attorney. LOCAL AGENCY reserves the right to require complete certified copies of all required insurance policies at any time.

Inclusion in Subcontracts. To the extent any of the services required of CONSULTANT under this Agreement are subcontracted to a third party, CONSULTANT shall include all of the provisions of this Section in all such subcontracts as obligations of the subcontractor.

ARTICLE XX FUNDING REQUIREMENTS
A. It is mutually understood between the parties that this AGREEMENT may have been written before ascertaining the availability of funds or appropriation of funds, for the mutual benefit of both parties, in order to avoid program and fiscal delays that would occur if the AGREEMENT were executed after that determination was made.

B. This AGREEMENT is valid and enforceable only if sufficient funds are made available to LOCAL AGENCY for the purpose of this AGREEMENT. In addition, this AGREEMENT is subject to any additional restrictions, limitations, conditions, or any statute enacted by the Congress, State Legislature, or LOCAL AGENCY governing board that may affect the provisions, terms, or funding of this AGREEMENT in any manner.

C. It is mutually agreed that if sufficient funds are not appropriated, this AGREEMENT may be amended to reflect any reduction in funds.

D. LOCAL AGENCY has the option to terminate the AGREEMENT pursuant to Article VI Termination, or by mutual agreement to amend the AGREEMENT to reflect any reduction of funds.

ARTICLE XXI CHANGE IN TERMS
A. This AGREEMENT may be amended or modified only by mutual written agreement of the parties.

B. CONSULTANT shall only commence work covered by an amendment after the amendment is executed and notification to proceed has been provided by LOCAL AGENCY’s Contract Administrator.

C. There shall be no change in CONSULTANT’s Project Manager or members of the project team, as listed in the approved Cost Proposal, which is a part of this AGREEMENT without prior written approval by LOCAL AGENCY’s Contract Administrator.

ARTICLE XXII CONTINGENT FEE
CONSULTANT warrants, by execution of this AGREEMENT that no person or selling agency has been employed, or retained, to solicit or secure this AGREEMENT upon an agreement or understanding, for a commission, percentage, brokerage, or contingent fee, excepting bona fide employees, or bona fide established commercial or selling agencies maintained by CONSULTANT for the purpose of securing business. For breach or violation of this warranty, LOCAL AGENCY has the right to annul this AGREEMENT without liability; pay only for the value of the work actually performed, or in its discretion

to deduct from the AGREEMENT price or consideration, or otherwise recover the full amount of such commission, percentage, brokerage, or contingent fee.

ARTICLE XXIII DISPUTES
Prior to either party commencing any legal action under this AGREEMENT, the parties agree to try in good faith, to settle any dispute amicably between them. If a dispute has not been settled after forty-five (45) days of good-faith negotiations and as may be otherwise provided herein, then either party may commence legal action against the other.

A. Any dispute, other than audit, concerning a question of fact arising under this AGREEMENT that is not disposed of by agreement shall be decided by a committee consisting of LOCAL AGENCY’s Contract Administrator and Capital Improvement Program Manager, who may consider written or verbal information submitted by CONSULTANT.

B. Not later than thirty (30) calendar days after completion of all deliverables necessary to complete the plans, specifications and estimate, CONSULTANT may request review by LOCAL AGENCY Governing Board of unresolved claims or disputes, other than audit. The request for review will be submitted in writing.

C. Neither the pendency of a dispute, nor its consideration by the committee will excuse CONSULTANT from full and timely performance in accordance with the terms of this AGREEMENT.

ARTICLE XXIV INSPECTION OF WORK
CONSULTANT and any subconsultant shall permit LOCAL AGENCY, the State, and the FHWA if federal participating funds are used in this AGREEMENT; to review and inspect the project activities and files at all reasonable times during the performance period of this AGREEMENT.

ARTICLE XXV SAFETY
A. CONSULTANT shall comply with OSHA regulations applicable to CONSULTANT regarding necessary safety equipment or procedures. CONSULTANT shall comply with safety instructions issued by LOCAL AGENCY Safety Officer and other LOCAL AGENCY representatives.

CONSULTANT personnel shall wear hard hats and safety vests at all times while working on the construction project site.

B. Pursuant to the authority contained in Vehicle Code §591, LOCAL AGENCY has determined that such areas are within the limits of the project and are open to public traffic. CONSULTANT shall comply with all of the requirements set forth in Divisions 11, 12, 13, 14, and 15 of the Vehicle Code. CONSULTANT shall take all reasonably necessary precautions for safe operation of its vehicles and the protection of the traveling public from injury and damage from such vehicles.

ARTICLE XXVI OWNERSHIP OF DATA
A. It is mutually agreed that all materials prepared by CONSULTANT under this AGREEMENT shall become the property of City, and CONSULTANT shall have no property right therein whatsoever.

Immediately upon termination, City shall be entitled to, and CONSULTANT shall deliver to City, reports, investigations, appraisals, inventories, studies, analyses, drawings and data estimates performed to that date, whether completed or not, and other such materials as may have been prepared or accumulated to date by CONSULTANT in performing this AGREEMENT which is not CONSULTANT’s privileged information, as defined by law, or CONSULTANT’s personnel information, along with all other property belonging exclusively to City which is in CONSULTANT’s

possession. Publication of the information derived from work performed or data obtained in connection with services rendered under this AGREEMENT must be approved in writing by City.

B. Additionally, it is agreed that the Parties intend this to be an AGREEMENT for services and each considers the products and results of the services to be rendered by CONSULTANT hereunder to be work made for hire. CONSULTANT acknowledges and agrees that the work (and all rights therein, including, without limitation, copyright) belongs to and shall be the sole and exclusive property of City without restriction or limitation upon its use or dissemination by City.

C. Nothing herein shall constitute or be construed to be any representation by CONSULTANT that the work product is suitable in any way for any other project except the one detailed in this Contract.

Any reuse by City for another project or project location shall be at City’s sole risk.

D. Applicable patent rights provisions regarding rights to inventions shall be included in the contracts as appropriate (48 CFR 27 Subpart 27.3 - Patent Rights under Government Contracts for federal- aid contracts).

E. LOCAL AGENCY may permit copyrighting reports or other agreement products. If copyrights are permitted; the AGREEMENT shall provide that the FHWA shall have the royalty-free nonexclusive and irrevocable right to reproduce, publish, or otherwise use; and to authorize others to use, the work for government purposes.

ARTICLE XXVII CLAIMS FILED BY LOCAL AGENCY’s CONSTRUCTION CONTRACTOR A. If claims are filed by LOCAL AGENCY’s construction contractor relating to work performed by CONSULTANT’s personnel, and additional information or assistance from CONSULTANT’s personnel is required in order to evaluate or defend against such claims; CONSULTANT agrees to make its personnel available for consultation with LOCAL AGENCY’S construction contract administration and legal staff and for testimony, if necessary, at depositions and at trial or arbitration proceedings.

B. CONSULTANT’s personnel that LOCAL AGENCY considers essential to assist in defending against construction contractor claims will be made available on reasonable notice from LOCAL AGENCY. Consultation or testimony will be reimbursed at the same rates, including travel costs that are being paid for CONSULTANT’s personnel services under this AGREEMENT.

C. Services of CONSULTANT’s personnel in connection with LOCAL AGENCY’s construction contractor claims will be performed pursuant to a written contract amendment, if necessary, extending the termination date of this AGREEMENT in order to resolve the construction claims.

ARTICLE XXVIII CONFIDENTIALITY OF DATA
A. All financial, statistical, personal, technical, or other data and information relative to LOCAL AGENCY’s operations, which are designated confidential by LOCAL AGENCY and made available to CONSULTANT in order to carry out this AGREEMENT, shall be protected by CONSULTANT from unauthorized use and disclosure.

B. Permission to disclose information on one occasion, or public hearing held by LOCAL AGENCY relating to the AGREEMENT, shall not authorize CONSULTANT to further disclose such information, or disseminate the same on any other occasion.

C. CONSULTANT shall not comment publicly to the press or any other media regarding the AGREEMENT or LOCAL AGENCY’s actions on the same, except to LOCAL AGENCY’s staff,

CONSULTANT’s own personnel involved in the performance of this AGREEMENT, at public hearings, or in response to questions from a Legislative committee.

D. CONSULTANT shall not issue any news release or public relations item of any nature, whatsoever, regarding work performed or to be performed under this AGREEMENT without prior review of the contents thereof by LOCAL AGENCY, and receipt of LOCAL AGENCY’S written permission.

E. All information related to the construction estimate is confidential, and shall not be disclosed by CONSULTANT to any entity, other than LOCAL AGENCY, Caltrans, and/or FHWA. All of the materials prepared or assembled by CONSULTANT pursuant to performance of this Contract are confidential and CONSULTANT agrees that they shall not be made available to any individual or organization without the prior written approval of City or except by court order. If CONSULTANT or any of its officers, employees, or subcontractors does voluntarily provide information in violation of this Contract, City has the right to reimbursement and indemnity from CONSULTANT for any damages caused by CONSULTANT releasing the information, including, but not limited to, City’s attorney’s fees and disbursements, including without limitation experts’ fees and disbursements.

ARTICLE XXIX NATIONAL LABOR RELATIONS BOARD CERTIFICATION In accordance with Public Contract Code §10296, CONSULTANT hereby states under penalty of perjury that no more than one final unappealable finding of contempt of court by a federal court has been issued against CONSULTANT within the immediately preceding two-year period, because of CONSULTANT’s failure to comply with an order of a federal court that orders CONSULTANT to comply with an order of the National Labor Relations Board.

ARTICLE XXX EVALUATION OF CONSULTANT
CONSULTANT’s performance will be evaluated by LOCAL AGENCY. A copy of the evaluation will be sent to CONSULTANT for comments. The evaluation together with the comments shall be retained as part of the AGREEMENT record.

ARTICLE XXXI RETENTION OF FUNDS
A. No retainage will be withheld by LOCAL AGENCY from progress payments due the CONSULTANT. Retainage by the CONSULTANT or subconsultants is prohibited, and no retainage will be held by the CONSULTANT from progress due subconsultants. Any violation of this provision shall subject the violating CONSULTANT or subconsultants to the penalties, sanctions, and other remedies specified in Business and Professions Code §7108.5. This requirement shall not be construed to limit or impair any contractual, administrative, or judicial remedies, otherwise available to the CONSULTANT or subconsultant in the event of a dispute involving late payment or nonpayment by the CONSULTANT or deficient subconsultant performance, or noncompliance by a subconsultant. This provision applies to both DBE and non-DBE CONSULTANT and subconsultants.

ARTICLE XXXII TITLE VI ASSURANCES
APPENDICES A-E of the TITLE VI ASSURANCES
The U.S. Department of Transportation Order No.1050.2A requires all federal-aid Department of Transportation contracts between an agency and a consultant to contain Appendices A and E of the Title VI Assurances. Include Appendices B, C, and D if applicable as shown below. In addition, the consultant must include the Title VI Assurances Appendices A and E, and if applicable Appendices B, C, and D in all subcontracts to perform work under the contract.

The clauses of Appendix B of this Assurance shall be included as a covenant running with the land, in any deed from the United States effecting or recording a transfer of real property, structures, use, or improvements thereon or interest therein to a LOCAL AGENCY.

The clauses set forth in Appendix C and Appendix D of this Assurance shall be included as a covenant running with the land, in any future deeds, leases, licenses, permits, or similar instruments entered into by the LOCAL AGENCY with other parties:
a. for the subsequent transfer of real property acquired or improved under the applicable activity, project, or program; and
b. for the construction or use of, or access to, space on, over, or under real property acquired or improved under the applicable activity, project, or program.

APPENDIX A
During the performance of this Agreement, the contractor, for itself, its assignees and successors in interest (hereinafter collectively referred to as CONSULTANT) agrees as follows:
a. Compliance with Regulations: CONSULTANT shall comply with the regulations relative to nondiscrimination in federally assisted programs of the Department of Transportation, Title 49, Code of Federal Regulations, Part 21, as they may be amended from time to time, (hereinafter referred to as the REGULATIONS), which are herein incorporated by reference and made a part of this agreement. b. Nondiscrimination: CONSULTANT, with regard to the work performed by it during the AGREEMENT, shall not discriminate on the grounds of race, color, sex, national origin, religion, age, or disability in the selection and retention of sub-applicants, including procurements of materials and leases of equipment.

CONSULTANT shall not participate either directly or indirectly in the discrimination prohibited by Section 21.5 of the Regulations, including employment practices when the agreement covers a program set forth in Appendix B of the Regulations.
c. Solicitations for Sub-agreements, Including Procurements of Materials and Equipment: In all solicitations either by competitive bidding or negotiation made by CONSULTANT for work to be performed under a Sub-agreement, including procurements of materials or leases of equipment, each potential sub-applicant or supplier shall be notified by CONSULTANT of the CONSULTANT’S obligations under this Agreement and the Regulations relative to nondiscrimination on the grounds of race, color, or national origin.
d. Information and Reports: CONSULTANT shall provide all information and reports required by the Regulations, or directives issued pursuant thereto, and shall permit access to its books, records, accounts, other sources of information, and its facilities as may be determined by the recipient or FHWA to be pertinent to ascertain compliance with such Regulations or directives. Where any information required of CONSULTANT is in the exclusive possession of another who fails or refuses to furnish this information, CONSULTANT shall so certify to the recipient or FHWA as appropriate, and shall set forth what efforts CONSULTANT has made to obtain the information. e. Sanctions for Noncompliance: In the event of CONSULTANT’s noncompliance with the nondiscrimination provisions of this agreement, the recipient shall impose such agreement sanctions as it or the FHWA may determine to be appropriate, including, but not limited to:

i. withholding of payments to CONSULTANT under the Agreement within a reasonable period of time, not to exceed 90 days; and/or
ii. cancellation, termination or suspension of the Agreement, in whole or in part. f. Incorporation of Provisions: CONSULTANT shall include the provisions of paragraphs (1) through (6) in every sub-agreement, including procurements of materials and leases of equipment, unless exempt by the Regulations, or directives issued pursuant thereto.

CONSULTANT shall take such action with respect to any sub-agreement or procurement as the recipient or FHWA may direct as a means of enforcing such provisions including sanctions for noncompliance, provided, however, that, in the event CONSULTANT becomes involved in, or is threatened with, litigation with a sub-applicant or supplier as a result of such direction, CONSULTANT may request the recipient enter into such litigation to protect the interests of the State, and, in addition, CONSULTANT may request the United States to enter into such litigation to protect the interests of the United States.

APPENDIX B CLAUSES FOR DEEDS TRANSFERRING UNITED STATES PROPERTY The following clauses will be included in deeds effecting or recording the transfer of real property, structures, or improvements thereon, or granting interest therein from the United States pursuant to the provisions of Assurance 4:

NOW THEREFORE, the U.S. Department of Transportation as authorized by law and upon the condition that the recipient will accept title to the lands and maintain the project constructed thereon in accordance with Title 23 U.S.C., the regulations for the administration of the preceding statute, and the policies and procedures prescribed by the FHWA of the U.S. Department of Transportation in accordance and in compliance with all requirements imposed by Title 49, Code of Federal Regulations,
U.S. Department of Transportation, Subtitle A, Office of the Secretary, Part 21, Non-discrimination in Federally-assisted programs of the U.S. Department of Transportation pertaining to and effectuating the provisions of Title VI of the Civil Rights Act of 1964 (78 Stat. 252; 42 U.S.C. § 2000d to 2000d-4), does hereby remise, release, quitclaim and convey unto the recipient all the right, title and interest of the U.S.

Department of Transportation in and to said lands described in Exhibit A attached hereto and made a part hereof.
(HABENDUM CLAUSE) TO HAVE AND TO HOLD said lands and interests therein unto the recipient and its successors forever, subject, however, to the covenants, conditions, restrictions and reservations herein contained as follows, which will remain in effect for the period during which the real property or structures are used for a purpose for which Federal financial assistance is extended or for another purpose involving the provision of similar services or benefits and will be binding on the recipient, its successors and assigns. The recipient, in consideration of the conveyance of said lands and interest in lands, does hereby covenant and agree as a covenant running with the land for itself, its successors and assigns, that (1) no person will on the grounds of race, color, or national origin, be excluded from participation in, be denied the benefits of, or be otherwise subjected to discrimination with regard to any facility located wholly or in part on, over, or under such lands hereby conveyed [,] [and]* (2) that the recipient will use the lands and interests in lands and interest in lands so conveyed, in compliance with all requirements imposed by or pursuant to Title 49, Code of Federal Regulations, U.S. Department of Transportation, Subtitle A, Office of the Secretary, Part 21, Non-discrimination in Federally-assisted programs of the
U.S. Department of Transportation, Effectuation of Title VI of the Civil Rights Act of 1964, and as said Regulations and Acts may be amended[, and (3) that in the event of breach of any of the above- mentioned non-discrimination conditions, the Department will have a right to enter or re-enter said lands and facilities on said lands, and that above described land and facilities will thereon revert to and vest in and become the absolute property of the U.S. Department of Transportation and its assigns as

such interest existed prior to this instruction].* (*Reverter clause and related language to be used only when it is determined that such a clause is necessary in order to make clear the purpose of Title VI.)

APPENDIX C CLAUSES FOR TRANSFER OF REAL PROPERTY ACQUIRED OR IMPROVED

UNDER THE ACTIVITY, FACILITY, OR PROGRAM
The following clauses will be included in deeds, licenses, leases, permits, or similar instruments entered into by the recipient pursuant to the provisions of Assurance 7(a):

A. The (grantee, lessee, permittee, etc. as appropriate) for himself/herself, his/her heirs, personal representatives, successors in interest, and assigns, as a part of the consideration hereof, does hereby covenant and agree [in the case of deeds and leases add “as a covenant running with the land”] that:

1. In the event facilities are constructed, maintained, or otherwise operated on the property described in this (deed, license, lease, permit, etc.) for a purpose for which a U.S.

Department of Transportation activity, facility, or program is extended or for another purpose involving the provision of similar services or benefits, the (grantee, licensee, lessee, permittee, etc.) will maintain and operate such facilities and services in compliance with all requirements imposed by the Acts and Regulations(as may be amended) such that no person on the grounds of race, color, or national origin, will be excluded from participation in, denied the benefits of, or be otherwise subjected to discrimination in the use of said facilities.

B. With respect to licenses, leases, permits, etc., in the event of breach of any of the above Non- discrimination covenants, the recipient will have the right to terminate the (lease, license, permit, etc.) and to enter, re-enter, and repossess said lands and facilities thereon, and hold the same as if the (lease, license, permit, etc.) had never been made or issued.* C. With respect to a deed, in the event of breach of any of the above Non-discrimination covenants, the recipient will have the right to enter or re-enter the lands and facilities thereon, and the above described lands and facilities will there upon revert to and vest in and become the absolute property of the recipient and its assigns.* (*Reverter clause and related language to be used only when it is determined that such a clause is necessary to make clear the purpose of Title VI.)

APPENDIX D CLAUSES FOR CONSTRUCTION/USE/ACCESS TO REAL PROPERTY ACQUIRED

UNDER THEACTIVITY, FACILITY OR PROGRAM
The following clauses will be included in deeds, licenses, permits, or similar instruments/agreements entered into by the recipient pursuant to the provisions of Assurance 7(b):

A. The (grantee, licensee, permittee, etc., as appropriate) for himself/herself, his/her heirs, personal representatives, successors in interest ,and assigns, as a part of the consideration hereof, does hereby covenant and agree (in the case of deeds and leases add, “as a covenant running with the land”) that (1) no person on the ground of race, color, or national origin, will be excluded from participation in, denied the benefits of, or be otherwise subjected to discrimination in the use of said facilities, (2) that in the construction of any improvements on, over, or under such land, and the furnishings of services thereon, no person on the ground of race, color, or national origin, will be excluded from participation in, denied the benefits or, or otherwise be subjected to discrimination, (3) that the (grantee, licensee, lessee, permittee, etc.) will use the premises in compliance with all other requirements imposed by or pursuant to the Acts and Regulations, as amended, set forth in this Assurance.

B. With respect to (licenses, leases, permits, etc.) in the event of breach of any of the above of the above Non- discrimination covenants, the recipient will have the right to terminate the (license, permits, etc., as appropriate) and to enter or re-enter and repossess said land and the facilities thereon, and hold the same as if said (license, permit, etc., as appropriate) had never been made or issued.* C. With respect to deeds, in the event of breach of any of the above Non-discrimination covenants, the recipient will there upon revert to and vest in and become the absolute property of the recipient and its assigns.

APPENDIX E
During the performance of this contract, the CONSULTANT, for itself, its assignees, and successors in interest (hereinafter referred to as the “CONSULTANT”) agrees to comply with the following non- discrimination statutes and authorities, including, but not limited to:

Pertinent Non-Discrimination Authorities:
• Title VI of the Civil Rights Act of 1964 (42 U.S.C. § 2000d et seq., 78 stat. 252), prohibits discrimination on the basis of race, color, national origin); and 49 CFR Part 21. • • The Uniform Relocation Assistance and Real Property Acquisition Policies Act of 1970, (42 • U.S.C. § 4601), (prohibits unfair treatment of persons displaced or whose property has been acquired because of Federal or Federal-aid programs and projects); • Federal-Aid Highway Act of 1973, (23 U.S.C. § 324 et seq.), prohibits discrimination on the basis of sex;
• Section 504 of the Rehabilitation Act of 1973, (29 U.S.C. § 794 et seq.), as amended, (prohibits discrimination on the basis of disability); and 49 CR Part 27; • The Age Discrimination Act of 1975, as amended, (42 U.S.C. § 6101 et seq.), prohibits discrimination on the basis of age);
• Airport and Airway Improvement Act of 1982, (49 U.S.C. § 471, Section 47123), as amended, (prohibits discrimination based on race, creed, color, national origin, or sex); • The Civil Rights Restoration Act of 1987, (PL 100-209), (Broadened the scope, coverage and applicability of Title VI of the Civil Rights Act of 1964, The Age Discrimination Act of 1975 and Section 504 of the Rehabilitation Act of 1973, by expanding the definition of the terms “programs or activities” to include all of the programs or activities of the Federal-aid recipients, sub-recipients and contractors, whether such programs or activities are Federally funded or not); • Titles II and III of the Americans with Disabilities Act, which prohibit discrimination of the basis of disability in the operation of public entities, public and private transportation systems, places of public accommodation, and certain testing entities (42 U.S.C. §§ 12131 – 12189) as implemented by Department of Transportation regulations 49 C.F.R. parts 37 and 38; • The Federal Aviation Administration’s Non-discrimination statute (49 U.S.C. § 47123) (prohibits discrimination on the basis of race, color, national origin, and sex); • Executive Order 12898, Federal Actions to Address Environmental Justice in Minority Populations and Low-Income Populations, which ensures discrimination against minority populations by discouraging programs, policies, and activities with disproportionately high and adverse human health or environmental effects on minority and low-income populations; • Executive Order 13166, Improving Access to Services for Persons with Limited English Proficiency, and resulting agency guidance, national origin discrimination includes discrimination because of limited English proficiency (LEP). To ensure compliance with Title VI, you must take reasonable steps to ensure that LEP persons have meaningful access to your programs (70 Fed. Reg. at 74087 to 74100);
• Title IX of the Education Amendments of 1972, as amended, which prohibits you from discriminating because of sex in education programs or activities (20 U.S.C. 1681 et seq).

Dated: CONSULTANT
BY:

Dan Schaefer, Vice President
[email protected]
Dated: CITY OF CONCORD
Valerie Barone
City Manager
APPROVED AS TO FORM: ATTEST:

Susanne Brown Joelle Fockler, MMC
City Attorney City Clerk
FINANCE DIRECTOR'S CERTIFICATION:

Concord, California
Date:

I HEREBY CERTIFY THAT ADEQUATE FUNDS EXIST OR WILL BE RECEIVED DURING THE CURRENT FISCAL YEAR 2025/26 TO PAY THE ANTICIPATED EXPENSES TO BE INCURRED PURSUANT TO THIS CONTRACT.

THE SUM OF $822,010
Account Code: 4079500C999-74500 / 4072572113-74500 ($94,284.55) 4029500C999-74500 / 4022572113-74500 ($727,725.45)
Finance Directors Signature

Local Assistance Procedures Manual Exhibit 10-H1
Cost Proposal
Note: Mark-ups are Not Allowed
Consultant
Project No. Contract No. Date 2/24/2025

DIRECT LABOR
Hours Actual Hourly Rate Total
57 $120.19 $6,850.83
290 $78.29 $22,704.10
48 $115.61 $5,549.28
412 $71.76 $29,565.12
0 $65.26 $0.00
88 $59.34 $5,221.92
560 $49.02 $27,451.20
174 $78.29 $13,622.46
220 $71.76 $15,787.20
40 $63.09 $2,523.60
40 $52.58 $2,103.20
0 $55.81 $0.00
0 $36.81 $0.00
0 $44.58 $0.00

LABOR COSTS
a) Subtotal Direct Labor Costs $131,378.91
b) Anticipated Salary Increases (see page 2 for calculation) $2,316.90 c)TOTAL DIRECT LABOR COSTS [(a) + (b)] $133,695.81

INDIRECT COSTS
d)Fringe Benefits (Rate: 199.19% ) e)Total Fringe Benefits [(c) x (d)] $266,308.68 f)Overhead (Rate: 0.00%) g)Overhead [(c) x (f)] $0.00
h)General and Administrative (Rate: 0.00% ) i)Gen & Admin [(c) x (h)] $0.00 j)TOTAL INDIRECT COSTS [(e) + (g) + (i)] $266,308.68
FIXED FEE k)TOTAL FIXED FEE [(c) + (j)] x fixed fee 10% ] $40,000.45 l)CONSULTANT'S OTHER DIRECT COSTS (ODC) - ITEMIZE (Add additional pages if necessary) Quantity Unit(s) Unit Cost Total
450 mile 0.7 $315.00
4 ea $150.00 $600.00
22 ea $20.00 $440.00
3500 ea $0.12 $420.00
l)TOTAL OTHER DIRECT COSTS $1,775.00
m)SUBCONSULTANT'S COSTS (Add additional pages if necessary) Subconsultant 1: Parikh - Geotechnical and Subsurface Investigation (DBE) $69,956.20 Subconsultant 2: $81,564.01
Subconsultant 3: Toole - Planning, Furnishings, Stormwater Treatment Landscaping $74,551.27 Subconsultant 4: $19,525.38
Subconsultant 5: $59,905.31
m)TOTAL SUBCONSULTANT'S COSTS $305,502.16
n)TOTAL OTHER DIRECT COSTS INCLUDING SUBCONSULTANTS [(l) + (m)] $307,277.16 TOTAL COST [(c) + (j) + (k) + (n)] $747,282.10
Project Engineer TBD
TBD
Utility Locator TBD
Principal Dan Schaefer*
Project Manager Alex Croskey*
Principal (Caltrans) Jaggi Bhandal*
EXHIBIT 10-H1 COST PROPOSAL Page 1 of 2

ACTUAL COST-PLUS-FIXED FEE OR LUMP SUM (FIRM FIXED PRICE) CONTRACTS (DESIGN, ENGINEERING AND ENVIRONMENTAL STUDIES)
Classification/Title Name
Willow Pass, Concord
BKF Engineers
Senior Project Engineer TBD
Mileage Costs
Delivery (1 per submittal)
TBD
Description of Item
Field Party Chief TBD
Field Chainperson TBD
Utility Locator
Project Manager (signals)
Project Surveyor TBD
Senior Project Engineer (signals) TBD
DJ Powers - CEQA/NEPA (DBE)
Copies
Convey - Outreach (DBE)
Fehr & Peers
Design Engineer TBD
TBD
Senior Project Assistant
Presentation Boards
Prime Consultant Subconsultant 2nd Tier Subconsultant
January 2018
Exhibit A to Attachment 2

Local Assistance Procedures Manual Exhibit 10-H1
NOTES:

3.Anticipated salary increases calculation (page 2) must accompany.

1.Key personnel must be marked with an asterisk (*) and employees that are subject to prevailing wage requirements must be markedwith two asterisks (**). All costs must comply with the Federal cost principles. Subconsultants will provide their own cost proposals.

2.The cost proposal format shall not be amended. Indirect cost rates shall be updated on an annual basis in accordance with theconsultant’s annual accounting period and established by a cognizant agency or accepted by Caltrans.

January 2018

Staff Report
Date: August 26, 2025
To: City Council
From: Valerie J. Barone, City Manager
Reviewed by: William Tarbox, Director of Public Works
Abhishek Parikh, Deputy Director of Public Works
Prepared by: Aaron Elias, Transportation Program Manager II [email protected]
(925) 671-3276
Subject: Introduction of an Ordinance amending Concord Municipal Code, Title 10 (Traffic and Vehicles), Chapter 10.20 (Operation of Vehicles), Article IV (Special Speed Zones), Section

10.20.080 (Speed limits established) approving speed limit changes in accordance with the findings of engineering and traffic surveys on various streets throughout the City of Concord by reading of the title only and waving further reading.

CEQA: Not a project/exempt pursuant to Public Resources Code 21065, CEQA Guidelines Sections 15060(c)(2),
15060(c)(3), 15061(b)(3), and/or 15378.

Report in Brief
California state law sets default speed limits (called prima facie limits) when no signs are posted which include 25 mph in business/residential areas, school zones, and near senior centers and 15 mph in alleys and near railroad crossings. Cities are permitted to set higher speed limits than these prima facie limits, but the speed limit must be set based on a traffic study and appropriately posted for it to be enforceable by the police.

In general, State law requires that speed limits be established using the 85th percentile speed of free-flow traffic rounded to the nearest 5 mph increment. The law allows for additional speed reductions from this method based on conditions in the field,

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City Council Agenda Report
Agenda Item No. 5.a
August 26, 2025
engineering judgement, and documentation in a traffic study called an Engineering and Traffic Survey (E&TS).

The Transportation Division has conducted a comprehensive citywide E&TS, and an update to the City’s current speed limit section of the Concord Municipal Code— reflecting the findings of this study—is now before the Council for consideration.

Recommended Action
Introduction of an Ordinance amending Concord Municipal Code, Title 10 (Traffic and Vehicles), Chapter 10.20 (Operation of Vehicles), Article IV (Special Speed Zones), Section 10.20.080 (Speed limits established) Approving Speed Limit Changes in Accordance With the Findings of Engineering and Traffic Surveys on Various Streets Throughout the City of Concord, by reading of the title only and waving further reading.

Background
The California Vehicle Code (CVC) allows local agencies such as Concord to establish speed limits that are different than the prima facie speed limit of 25 mph based on an E&TS. The E&TS determines a reasonable, safe, and enforceable speed limit based on a review of free-flow speeds, collision data, and the general characteristics of land uses and activity in the vicinity. The Transportation Division has completed the E&TS to reassess speed limits throughout the city to establish safe and enforceable limits, lowering them when and where appropriate.

Speed Zones
The first step in conducting an E&TS is to define speed zones—groupings of roadway segments that share similar characteristics such as land use context, traffic patterns, and roadway conditions. These zones allow for consistent and appropriate speed limits across similar stretches of roadway. For example, Clayton Road between Market Street and Ygnacio Valley Road has been divided into four speed zones, each reflecting distinct roadway conditions that may warrant different speed limits based on E&TS findings.

As part of this effort, the Transportation Division evaluated all roadways in the city with posted speed limits above the prima facie 25 mph limit. Similar roadway segments were consolidated into speed zones for analysis. In total, 92 speed zones were identified citywide . An E&TS was conducted for each of these zones to determine safe, reasonable, and enforceable speed limits
Engineering & Traffic Surveys (E&TS)
The E&TS is required by California law to legally set and justify speed limits that differ from the prima facie defaults (25 mph) and to enforce against speeding. Pursuant to

City Council Agenda Report
Agenda Item No. 5.a
August 26, 2025
CVC Section 40802(c), an E&TS must be performed every 5, 71, or 142 years depending on roadway conditions and enforcement procedures. Elements of an E&TS include a speed survey, a collision history review, and an assessment of roadway conditions that may be cause for a reduced speed limit such as locations generating high pedestrian and bicycle traffic.

A key component of the E&TS is the speed survey, which aims to sample the speeds of at least 100 vehicles in each direction within each speed zone. To ensure accuracy, only vehicles traveling under free-flow conditions—unimpeded by other vehicles, such as those not part of a platoon—are included.

In general, speed limits are determined using the 85th percentile speed, which is the speed at or below which 85% of free-flowing drivers are observed to travel. This method, mandated by the State, is grounded in actual driver behavior and reflects what most drivers perceive to be a safe and reasonable speed. Establishing speed limits in this way promotes uniform traffic flow and provides a defensible basis for enforcement.

Potential Speed Reductions
While the standard is to set the speed limit to the nearest 5 mph increment of the 85th percentile speed, state law does allow for certain reductions in the posted speed limit to improve safety in areas such as those generating high pedestrian and bicycle traffic.

These reductions are determined by a traffic engineer and documented as part of the E&TS. These reductions have been fully applied by the Transportation Division where appropriate. There are essentially three potential reductions permissible with proper documentation. These include:
• CVC Section 22358.6(b) –This section of the CVC allows for a 5 mph reduction in the posted speed limit based on engineering judgment, beyond what would traditionally be set using the 85th percentile speed. For instance, if a roadway— such as Street A has an 85th percentile speed of 37 mph, the standard approach would round to the nearest 5 mph increment, resulting in a posted speed limit of 35 mph. However, under CVC Section 22358.6(b), the speed limit may be further reduced by 5 mph to 30 mph if the E&TS documents specific conditions that warrant a lower limit to enhance safety for vulnerable road users. Such conditions might include proximity to parks, schools, trail crossings, or areas with high pedestrian or bicyclist activity.
• CVC Section 22358.6(c) – This section of the CVC permits rounding the 85th percentile speed down to the nearest 5 mph increment, even when standard rounding rules would typically require rounding up. For example, if Street B has an 85th percentile speed of 43 mph, the standard practice would round up to a 1 The E&TS is valid for seven years when using radar or any other electronic device that measures the speed of moving objects.
2 An extension to 14 years is permissible if a registered engineer evaluates the section of the highway and determines that no significant changes in roadway or traffic conditions have occurred.

City Council Agenda Report
Agenda Item No. 5.a
August 26, 2025
posted speed limit of 45 mph. However, under CVC Section 22358.6(c), the speed limit may be rounded down to 40 mph. While this section does not require documentation to justify the reduction, the Transportation Division has chosen to document the rationale for applying this provision in the E&TS for transparency and consistency.
• CVC Section 22358.7(a)(2) –This section of the CVC allows for an additional 5 mph reduction in the posted speed limit beyond the reductions permitted under CVC Sections 22358.6(b) and 22358.6(c), when a roadway is adjacent to land uses or facilities that generate high concentrations of bicyclists or pedestrians, particularly those from vulnerable populations such as children, seniors, persons with disabilities, or the unhoused. For example, if Street C has an 85th percentile speed of 44 mph, it may first be rounded down to 40 mph under CVC Section 22358.6(c). If Street C is adjacent to a land use such as an elementary school that generates significant pedestrian or bicycle activity, CVC Section 22358.7(a)(2) allows the posted speed limit to be further reduced to 35 mph to enhance safety for these users.

Analysis
Transportation Division staff assessed both the existing speed zones in the Concord Municipal Code and the currently posted speed limit on non-residential roadways in the city. Based on the collected data and analysis, the following recommendations are made to ensure enforceable speed limits in Concord.

Speed Zones
Concord Municipal Code Section 10.20.080 currently identifies a total of 91 speed zones throughout the city where speeds can be set higher than the 25 mph prima facie speed based on an E&TS. The entire city was reassessed to determine additions, modifications, and eliminations to the current 91 speed zones. Based on this review, the Transportation Division recommends four (4) speed zones be removed, six (6) speed zones be added, and 30 speed zones be modified.
• Speed Zone Removals
o Campus Road3 from Pine Hollow Road to Ygnacio Valley Road – Recommended for removal, as this roadway is not part of the public right- of-way; it is owned and maintained by Cal State East Bay. Additionally, Concord Police do not conduct enforcement on this segment, making inclusion in the City's speed zone inventory unnecessary. o Hitchcock Road from Court Lane to Kaski Lane – Recommended for removal, as this is a local roadway located within the core of a residential district, where the 25 mph prima facie speed limit is applicable and enforceable without the need for an E&TS.
3 Designated “California State Hayward Campus Road” in Concord Municipal Code 10.20.080

City Council Agenda Report
Agenda Item No. 5.a
August 26, 2025
o Ridge Park Drive from Cowell Road to Cowell Road – Recommended for removal since the roadway experiences such low traffic volumes that the required sample size of 50 vehicles could not be obtained to support an enforceable E&TS. Given its classification as a local street within a residential area, the 25 mph prima facie speed limit applies and is enforceable without an E&TS.
o Rolling Woods Way from Crystyl Ranch Drive to the Boundary of Crystyl Ranch Subdivision - Recommended for removal since this segment is a local roadway located in the heart of a residential district and a 25 mph prima facie speed limit is applicable and enforceable without an E&TS. In contrast, the adjacent segment of Rolling Woods Drive from the Crystyl Ranch subdivision to Pine Hollow Road remains designated as a speed zone since it lacks direct residential frontage making enforcement under the residential district provision impossible.
• Speed Zone Additions
o Crystyl Ranch Drive from Ygnacio Valley Road to Hiddencrest Court – Recommended to be added since this segment currently has a posted speed limit higher than 25 mph but is not included in the City’s existing list of established speed zones rendering the speed limit unenforceable.

Inclusion in the municipal code with E&TS documentation will provide the legal basis for enforcement.
o East Street from Pacheco Street to Clayton Road - Recommended to be added since this segment is classified as an arterial roadway and does not qualify as a residential district. Additionally, it does not meet the criteria outlined in the CVC for designation as a business activity district, which would otherwise permit enforcement of the 25 mph prima facie speed limit. Establishing this segment as a speed zone through an E&TS is necessary to enable legal enforcement of the speed limit. o Mohr Lane from Monument Boulevard to David Avenue –
Recommended for addition since the roadway is classified as a major collector and serves as a transit route. Establishing this segment as a speed zone through an E&TS will provide a legally enforceable speed limit to support safe operations and effective enforcement.
o Olivera Road from Hillsborough Drive to Hamilton Avenue – Recommended for addition since the roadway is classified as an arterial/collector, carries a high volume of non-local traffic, and is adjacent to a school. Establishing this segment as a speed zone through an E&TS will allow for a legally enforceable speed limit to enhance safety. o Salvio Street from Port Chicago Highway to Olivera Road – Salvio Street is a collector roadway adjacent to a mix of municipal facilities including City Hall, the public library, Olympic High School, the Willow

City Council Agenda Report
Agenda Item No. 5.a
August 26, 2025
Pass Center, and residential areas. Due to the mixed nature of surrounding land uses and classification as a collector road, enforcement cannot rely on the residential prima facie speed limit. Establishing a speed zone through an E&TS would create a legally enforceable speed limit and support effective speed management along the corridor
o Willow Pass Road from Galindo Street to Parkside Drive – This segment of Willow Pass Road is not included within any established speed zone supported by an E&TS making the speed limit unenforceable.

Adding this segment as a designated speed zone will establish an enforceable speed limit on Willow Pass Road as it traverses the downtown Concord area.
• Speed Zone Modifications – Modifications are proposed to 30 speed zones to change the boundaries of the zones or combine two zones to better align with current roadway and land use characteristics. These zones along with how the boundary is proposed to be modified are included in Attachment 3.

Attachment 4 contains a list of all the proposed speed zones as a result if this analysis effort which includes a total of 92 segments.

E&TS Speed Limit Assessment
The E&TS covered all 92 of the proposed speed zones listed in Attachment 4. The detailed findings for collision history, 85th percentile speed, and justifications for the proposed posted speed limit for each speed zone are included in Attachment 5. Based on the E&TS assessment, 25% of speed zones (23 of 92) are recommended to have a change in the posted speed limit. Other key statistics from this assessment include:
• 28 of the 92 speed zones had their speed limits set using the traditional method of rounding the 85th percentile to the nearest 5 mph increment. • 51 of the 92 speed zones had their speed limits set by taking a 5 mph reduction to the rounded 85th percentile speed to improve safety in areas with pedestrian/bicycle activity or collisions.
• 13 of the 92 speed zones used a 10 mph reduction to the rounded 85th percentile speed limit since they were near a land use generating high concentrations of pedestrians and bicyclists such as a school or community park.

As noted above, 23 speed zones are proposed to have their speed limits changed.

Details of these zones and the reasoning behind the change include:
• Increased Speed Limits (3 Segments)
o Crystyl Ranch Drive from Ygnacio Valley Road to Hiddencrest Court (35 mph to 45 mph) – The speed limit was increased to 45 mph due to the adjacent land use consisting primarily of open fields and the results of the speed survey, which indicated that a lower speed limit would not be

City Council Agenda Report
Agenda Item No. 5.a
August 26, 2025
enforceable. Setting the speed limit at 45 mph aligns with the prevailing speeds of the majority of drivers and enables Concord Police to enforce violations involving excessive speeding.
o Rolling Woods Way from Pine Hollow Road to northernmost boundary of the Crystyl Ranch development (30 mph to 35 mph) – The speed limit was increased to 35 mph based on speed survey data and because there are no residential units directly fronting the street.

Establishing the speed limit at 35 mph aligns with the prevailing travel speeds and enables Concord Police to enforce excessive speeding violations, which would not be feasible with a lower speed limit. o Turtle Creek Road from Treat Boulevard to Swallow Tail Road (30 mph to 35 mph) – This speed zone currently includes a mix of posted speed limits including 30 mph between Treat Boulevard and Fallbrook Drive and 35 mph between Fallbrook Drive and Swallow Tail Court.

However, the collected speed data does not support a 30 mph limit in the first segment, rendering it legally unenforceable. Standardizing the entire speed zone at 35 mph aligns with prevailing driver speeds and establishes an enforceable speed limit. This enables Concord Police to take action against excessive speeding.
• Decreased Speed Limits (20 Segments)
o Alberta Way from Clayton Road to Ygnacio Valley Road (35 mph to 25 mph) – Speed limit reduced due to proximity to Clayton Valley Charter High School.
o Ayers Road from Ygnacio Valley Road to Clayton Road (35 mph to 30 mph) – Speed limit reduced due to proximity to Newhall Park. o Babel Lane from Clayton Road to Cowell Road (35 mph to 30 mph) – Speed limit reduced due to proximity to El Monte Elementary School. o Burnett Avenue from Highway 680 Northbound on/off ramp to John Glenn Drive (35 mph to 30 mph) – Speed limit reduced to better align with prevailing speeds and dense commercial land uses.
o Clayton Road from Galindo Street to Oakland Avenue (35 mph to 30 mph) – Speed limit reduced due to the downtown nature of the speed zone and to make it consistent with Concord Boulevard which is the other half of the couplet through downtown.
o Concord Avenue from Market Street to Salvio Street (35 mph to 30 mph) – Speed limit lowered due to multimodal activity that occurs in the downtown area.
o Cowell Road from Monument Boulevard to Babel Lane (35 mph to 30 mph) – Speed limit lowered to account for pedestrian and bicycle activity at Krueger Fields, Canal Trail Crossing, and Concord Community Park.

City Council Agenda Report
Agenda Item No. 5.a
August 26, 2025
o David Avenue from Oak Grove Road to Bancroft Road (40 mph to 35 mph) – Speed limit reduced since roadway has a pedestrian bridge to Oak Grove Middle School and there are several houses with driveways directly fronting David Avenue.
o Galaxy Way from Commerce Avenue to Via De Mercados (30 mph to 25 mph) – Speed limit reduced based on prevailing speed of vehicles and the adjacent De La Salle Academy.
o Galindo Street from Monument Boulevard to Salvio Street (35 mph to 30 mph) – Speed limit lowered due to multimodal activity that occurs in the downtown area.
o Grant Street from High School Avenue to Solano Way (35 mph to 30 mph) – Speed limit reduced due to proximity to high pedestrian/bicycle generating uses such as Mount Diablo High School and the John Muir Medical Campus.
o Kirker Pass Road from City Limit to Myrtle Drive (55 mph to 50 mph) – Speed limit reduced to better align with prevailing speeds and to align with the 50 mph speed zone over Kirker Pass implemented in the county section.
o Laura Alice Way from Arnold Industrial Way to Nelson Avenue (35 mph to 30 mph) – Speed limit reduced to better align with speed limit on Peralta Road which is the continuation of Laura Alice Way on the other side of SR 4.
o Marsh Drive from Solano Way to City Limit (45 mph to 40 mph) - The speed limit was reduced to help moderate vehicle speeds as drivers enter Concord and approach Solano Way, promoting a smoother and safer transition into the urban roadway environment.
o Meadow Lane from Market Street to Monument Boulevard (35 mph to 30 mph) – The speed limit was reduced to better reflect the residential character of the surrounding land uses and to enhance safety for all users following the installation of bicycle facilities along the roadway. o Minert Road from Oak Grove Road to City Limit (40 mph to 35 mph) – Speed limit reduced due to speed zone being adjacent to Oak Grove Middle School.
o Oak Grove Road from Junction Drive to City Limit (40 mph to 35 mph) – Speed limit reduced to better align with prevailing speeds. o Oakland Avenue from Clayton Road to Mt Diablo Street (30 mph to 25 mph) – Speed limit lowered due to proximity with the Concord BART station.

City Council Agenda Report
Agenda Item No. 5.a
August 26, 2025
o Port Chicago Highway from Panoramic Drive to City Limit (45 mph to 40 mph) – Reduced speed limit justified based on the latest speed survey data.
o West Street from Clayton Road to Concord Boulevard (30 mph to 25 mph) – Speed limit reduced due to residential nature of the street and its close proximity to Westwood Elementary School, El Dorado Middle School, and the St Agness School.

Attachment 6 shows the speed zones where speed limit changes are proposed while Attachment 7 shows a map of the proposed speed limits should the ordinance be adopted.

Financial Impact
The proposed changes to the speed zones will require the addition or modification of speed limit signage throughout the city. These speed limit signage changes would be completed by public works staff as part of general maintenance of signs and the costs for doing so will be covered by the General Fund.

Environmental Determination
The City Council finds that the proposed Municipal Code amendments are exempt from CEQA pursuant to Public Resources Code Section 21065 and CEQA Guidelines Sections 15060(c)(2), 15060(c)(3), and/or 15378 in that they do not constitute a “project” as defined by CEQA since they do not have the potential to result in either a direct physical change to the environment or a reasonably foreseeable indirect physical change to the environment. If the Ordinance did constitute a “project” under CEQA, the Ordinance falls within the “common sense” exemption set forth in 14 Cal. Code Regs.

Section 15061(b)(3), excluding projects where “it can be seen with certainty that there is no possibility that the activity in question may have a significant effect on the environment…” Therefore, the proposed Municipal Code amendments do not warrant further environmental review. This determination reflects the City’s independent judgement and analysis.

Public Contact
The City Council Agenda was posted. Notification was published in the East Bay Times as required by state law and the Concord Municipal Code and provided to the interested parties list.

Attachments

1. Ordinance Amending Concord Municipal Code Title 10 (Traffic and Vehicles), Section 10.20.080 (Speed limits established)

2. Redline Amendments to CMC Title 10 (Traffic and Vehicles), Section

10.20.080 (Speed limits established)

3. List of Modified Speed Zones

4. List of Proposed Speed Zone Segments

City Council Agenda Report
Agenda Item No. 5.a
August 26, 2025

5. 2025 Engineering and Traffic Surveys for Each Speed Zone

6. Map of Proposed Speed Limit Changes

7. Map of Proposed Speed Limits in Concord

Ord. No. 25-XX 1
ORDINANCE NO. 25-XX

AN ORDINANCE AMENDING CONCORD MUNICIPAL CODE TITLE
10 (TRAFFIC AND VEHICLES), CHAPTER 10.20 (OPERATION OF

VEHICLES), ARTICLE IV (SPECIAL SPEED ZONES), SECTION

10.20.080 (SPEED LIMITS ESTABLISHED) APPROVING SPEED

LIMIT CHANGES IN ACCORDANCE WITH THE FINDINGS OF

ENGINEERING AND TRAFFIC SURVEYS ON VARIOUS STREETS

THROUGHOUT THE CITY OF CONCORD
WHEREAS, California Vehicle Code (CVC) Section 22352 establishes prima facie speed limits for streets; and
WHEREAS, CVC Section 22357 provides that whenever a local authority determines upon the basis of an engineering and traffic survey that a speed greater than 25 miles per hour would facilitate the orderly movement of vehicular traffic and would be reasonable and safe upon any street other than a state highway otherwise subject to prima facie limit of 25 miles per hour, the local authority may by ordinance determine and declare a speed limit of 30, 35, 40, 45, 50, 55, or 60 miles per hour or a maximum speed limit of 65 miles per hour, whichever is found most appropriate to facilitate the orderly movement of traffic and is reasonable and safe; and WHEREAS, pursuant to the 1999 revision to Section 40802 of the California Vehicle Code by the California Legislature, the City cannot use radar to enforce speed limits unless justified by an engineering and traffic survey conducted in accordance with CVC Section 627 and the California Manual on Uniform Traffic Control Devices (MUTCD); and
WHEREAS, the City prepared an engineering and traffic survey (E&TS) for each designated City street from April 30, 2024, through May 22, 2025, and the proposed speed limit for each street as established by the City’s 2025 Engineering and Traffic Surveys.

NOW, THEREFORE, THE CITY COUNCIL OF THE CITY OF CONCORD DOES ORDAIN AS FOLLOWS:

Section 1. The proposed Municipal Code amendments are exempt from CEQA pursuant to Public Resources Code 21065 and CEQA Guidelines Section 15060(c)(2), 15060(c)(3), and/or 15378 in that they do not constitute a “project” as defined by CEQA since they do not have the potential to result in either a direct physical change to the environment or a reasonably foreseeable indirect Attachment 1

Ord. No. 25-XX 2
physical change to the environment. If the Ordinance did constitute a “project” under CEQA, the Ordinance falls within the “common sense” exemption set forth in 14 Cal. Code Regs. Section 15061(b)(3), excluding projects where “it can be seen with certainty that there is no possibility that the activity in question may have a significant effect on the environment…” Therefore, the proposed Municipal Code amendments do not warrant further environmental review. This determination reflects the City’s independent judgement and analysis.

Section 2. The City Council, on the basis of the foregoing, and engineering and traffic surveys, has determined that the speeds permitted by state law for various streets within Concord is different than those necessary for safe operation thereon, under the conditions found to exist on such streets, and it is hereby declared that the prima facie speed limit shall be as herein set forth on those streets or parts of streets within the City hereinafter designated when signs giving notice thereof have been erected upon those streets.

Section 3. Title 10 (Traffic and Vehicles), Chapter 10.20 (Operation of Vehicles), Article IV (Special Speed Zones), Section 10.20.080 (Speed Limits Establish) is hereby amended as follows:

The City Council, on the basis of engineering and traffic surveys, has determined that the speeds permitted by state law, as applicable to the following streets, are different than those necessary for safe operation thereon, under the conditions found to exist on such streets, and it is hereby declared that the prima facie speed limit shall be as herein set forth on those streets or parts of streets within the city hereinafter designated when signs giving notice thereof have been erected upon those streets.
(1) Fifty-five miles per hour.

Willow Pass Road from State Highway 4 to a point 2,000 feet north of Lynwood Drive. (2) Fifty miles per hour.

Kirker Pass Road from City Limit to Myrtle Drive.
(3) Forty-five miles per hour.

Arnold Industrial Way from Port Chicago Highway to East Bay Municipal Utility District (EBMUD) Aquaduct Right-of-Way (ROW).

Bailey Road from a point 2,500 feet northeast of Myrtle Drive to the City Limit.

Ord. No. 25-XX 3
Crystyl Ranch Drive from Ygnacio Valley Road to Hiddencrest Court.

Kirker Pass Road from Myrtle Drive to Clayton Road.

Willow Pass Road from Lynwood Drive to a point 2,000 feet north of Lynwood Drive.

Ygnacio Valley Road from the west City Limit to Ayers Road.

Ygnacio Valley Road from Ayers Road to Clayton Road.
(4) Forty miles per hour.

Avila Road from Willow Pass Road to the east City Limits.

Clayton Road from Farm Bureau Road to Ygnacio Valley Road.

Concord Avenue from Market Street to the west City Limits.

Marsh Drive from Solano Way to the City Limits.

Port Chicago Highway from Olivera Road to Panoramic Drive.

Port Chicago Highway from Panoramic Drive to City Limits.

Treat Boulevard from San Miguel Road to Clayton Road.

Treat Boulevard from Oak Grove Road to San Miguel Road.

Treat Boulevard from the west City Limits to Oak Grove Road. (5) Thirty-five miles per hour.

Arnold Industrial Way from EBMUD Aquaduct ROW to the City Limit.

Bailey Road from Concord Boulevard to 2,500 feet northeast of Myrtle Drive.

Bailey Road from Clayton Road to Concord Boulevard.

Bancroft Road from Mayhew Way to Hookston Road.

Bates Avenue from Nelson Avenue to Port Chicago Highway.

Clayton Road from Market Street to Galindo Street.

Clayton Road from Oakland Avenue to Farm Bureau Road.

Concord Boulevard from Clayton Road to Galindo Street.

Concord Boulevard from Port Chicago Highway to Landana Drive.

Concord Boulevard from Landana Drive to Ayers Road.

Concord Boulevard from Ayers Road to Kirker Pass Road.

Concord Boulevard from Kirker Pass Road to City Limit.

Ord. No. 25-XX 4
Cowell Road from Babel Lane to Treat Boulevard.

Cowell Road from Treat Boulevard to Ygnacio Valley Road.

David Avenue from Oak Grove Road to Bancroft Road.

Detroit Avenue from Monument Boulevard to Whitman Road.

Diamond Boulevard from Concord Avenue to Willow Pass Road.

Market Street from Concord Avenue to Meadow Lane.

Minert Road from Oak Grove Road to City Limit.

Monument Boulevard from Cowell Road to the southwest City Limits.

Nelson Avenue from Laura Alice Way to Bates Avenue.

Oak Grove Road from Monument Boulevard to Junction Drive.

Oak Grove Road from Junction Drive to City Limit.

Olivera Road from Willow Pass Road to Hamilton Avenue.

Pine Hollow Road from Alberta Way to the east City Limits.

Port Chicago Highway from Almond Avenue to Olivera Road.

Rolling Woods Way from Pine Hollow Road to northernmost boundary of the Crystyl Ranch development.

San Miguel Road from Systron Drive to Homewood Drive.

Solano Way from Arnold Industrial Way to Hilltop Road.

Turtle Creek Road from Treat Boulevard to Swallow Tail Road.

Turtle Creek Road from Swallow Tail Road to Ayers Road.

Whitman Road from Oak Grove Road to Detroit Avenue.

Willow Pass Road from Contra Costa Boulevard to Market Street.

Willow Pass Road from Market Street to Galindo Street.

Willow Pass Road from Parkside Drive to Lynwood Drive.
(6) Thirty miles per hour.

Arnold Industrial Place from Solano Way to its eastern termination.

Ayers Road from Clayton Road to Concord Boulevard.

Ayers Road from Ygnacio Valley Road to Clayton Road.

Ord. No. 25-XX 5
Babel Lane from Clayton Road to Cowell Road.

Burnett Avenue from Highway 680 Northbound On/Off Ramp to John Glenn Drive.

Clayton Road from Galindo Street to Oakland Avenue.

Commerce Avenue from Concord Avenue to its southern termination.

Concord Avenue from Market Street to Salvio Street.

Concord Boulevard from Port Chicago Highway to Galindo Street.

Cowell Road from Monument Boulevard to Babel Lane.

Denkinger Road from Clayton Road to Concord Boulevard.

East Street from High School Avenue to Pacheco Street.

Farm Bureau Road from Willow Pass Road to Clayton Road.

Galaxy Way from its western termination to Meridian Park Boulevard.

Galindo Street from Monument Boulevard to Salvio Street.

Grant Street from High School Avenue to Solano Way.

John Glenn Drive/Galaxy Way from Concord Avenue to Meridian Park Boulevard.

Laura Alice Way from Arnold Industrial Way to Nelson Avenue.

Meadow Lane from Market Street to Monument Boulevard.

Meridian Park Boulevard from Concord Avenue to Willow Way.

Myrtle Drive from Ayers Road to Kirker Pass Road.

North Larwin Drive for its entire length.

Olivera Road from Solano Way to Hillsborough Drive.

Peralta Road from Olivera Road to Arnold Industrial Way.

Port Chicago Highway from Clayton Road to Almond Avenue.

Solano Way from Hilltop Road to Grant Street.

South Larwin Drive for its entire length.

Via De Mercados from Concord Avenue to Galaxy Way.

Willow Pass Road from Galindo Street to Parkside Drive. (7) Twenty-five miles per hour.

All other roadways within the City unless otherwise posted.

Ord. No. 25-XX 6
Alberta Way from Clayton Road to Ygnacio Valley Road.

Detroit Avenue from Clayton Road to Monument Boulevard.

East Street from Pacheco Street to Clayton Road.

Galaxy Way from Commerce Avenue to Via De Mercados.

Mohr Lane from Monument Boulevard to David Avenue.

Oakland Avenue from Clayton Road to Mt Diablo Street.

Olivera Road from Hillsborough Drive to Hamilton Avenue.

Salvio Street from Port Chicago Highway to Olivera Road.

San Miguel Road from Treat Boulevard to Homewood Drive.

West Street from Clayton Road to Concord Boulevard
Section 4. This Ordinance No. 25-XX shall become effective thirty (30) days following its passage and adoption. In the event a summary of said Ordinance is published in lieu of the entire Ordinance, a certified copy of the full text of this Ordinance shall be posted in the office of the City Clerk at least five (5) days prior to its adoption and within fifteen (15) days after its adoption, including the vote of the Councilmembers. Additionally, a summary prepared by the City Attorney’s Office shall be published once at least five (5) days prior to the date of adoption of this Ordinance and once within fifteen (15) days after its passage and adoption, including the vote of the Councilmembers, in the East Bay Times, a newspaper of general circulation in the City of Concord.

Carlyn S. Obringer
Mayor
ATTEST:

Joelle Fockler, MMC
City Clerk
(Seal)

Ord. No. 25-XX 7
Ordinance No. 25-XX was duly and regularly introduced at a regular meeting of the City Council of the City of Concord held on August 26, 2025, and was thereafter duly and regularly passed and adopted at a regular meeting of the City Council of the City of Concord on September 23, 2025, by the following vote:

AYES:

NOES:

ABSTAIN:

ABSENT:

I HEREBY CERTIFY that the foregoing is a true and correct copy of an ordinance duly and regularly introduced, passed, and adopted by the City Council of the City of Concord, California.

Joelle Fockler, MMC
City Clerk

10.20.080 Speed limits established.

The City Council, on the basis of engineering and traffic investigations and surveys, has determined that the speeds permitted by state law, as applicable to the following streets, are different than those necessary for safe operation thereon, under the conditions found to exist on such streets, and it is hereby declared that the prima facie speed limit shall be as herein set forth on those streets or parts of streets within the city hereinafter designated when signs giving notice thereof have been erected upon those streets. (1) Fifty-five miles per hour.

Kirker Pass Road from the east city limits to Myrtle Drive.

Willow Pass Road from State Highway 4 to a point 2,000 feet north of Lynwood Drive. (2) Fifty miles per hour.

Kirker Pass Road from City Limit to Myrtle Drive.
(3) Forty-five miles per hour.

Arnold Industrial Way from Port Chicago Highway to the west city limits East Bay Municipal Utility District (EBMUD) Aquaduct Right-of-Way (ROW).

Bailey Road from a point 750 2,500 feet northeast of Myrtle Drive to a point 4,850 feet northeast of Myrtle Drivethe City Limit.

Crystyl Ranch Drive from Ygnacio Valley Road to Hiddencrest Court.

Kirker Pass Road from Myrtle Drive to Clayton Road.

Marsh Drive from Solano Way to the west city limits.

Port Chicago Highway from Panoramic Drive to Bates Avenue.

Treat Boulevard from the Oak Grove Road to San Miguel Road.

Willow Pass Road from Lynwood Drive to a point 2,000 feet north of Lynwood Drive.

Ygnacio Valley Road from Clayton Road to Michigan Boulevard.

Ygnacio Valley Road from the west City Limit to Ayers Road to the west city limit .

Ygnacio Valley Road from Michigan Boulevard to Ayers Road to Clayton Road. (4) Forty miles per hour.

Avila Road from Willow Pass Road to the east city City limitsLimits.

Attachment 2

Clayton Road from Farm Bureau Road to Ygnacio Valley Road.

Concord Avenue from Market Street to the west city City limitsLimits.

Marsh Drive from Solano Way to the City Limits.

David Avenue from Oak Grove Road to Bancroft Road.

Minert Road from Oak Grove Road to the southwest city limits.

Oak Grove Road from Fox Way to the south city limits.

Port Chicago Highway from Olivera Road to Panoramic Drive.

Port Chicago Highway from Panoramic Drive to City Limits.

Treat Boulevard from San Miguel Road to Clayton Road.

Treat Boulevard from Oak Grove Road to San Miguel Road.

Treat Boulevard from the west city City limits Limits to Oak Grove Road. (5) Thirty-five miles per hour.

Arnold Industrial Way from EBMUD Aquaduct ROW to the City Limit.

Bailey Road from Concord Boulevard to 2,500 feet northeast of Myrtle Drive.

Bailey Road from Clayton Road to Concord Boulevard.Alberta Way from Clayton Road to Ygnacio Valley Road.

Ayers Road from Ygnacio Valley Road to Clayton Road.

Babel Lane from Clayton Road and Cowell Road.

Bailey Road from Clayton Road to a point 750 feet northeast of Myrtle Drive.

Bailey Road from a point 4,850 feet northeast of Myrtle Drive to the east city limits.

Bancroft Road from Mayhew Way to Hookston Road.

Bates Avenue from Nelson Avenue to Port Chicago Highway.

Burnett Avenue from Highway 680 Northbound on/off ramp to Diamond Boulevard.

Clayton Road from Market Street to Galindo Street.

Clayton Road from Oakland Avenue to Farm Bureau Road.

Concord Avenue from Market Street to Salvio Street.

Concord Boulevard from Denkinger Road to east city limits.

Concord Boulevard from Galindo Street to Clayton Road.

Concord Boulevard from Kirker Pass Road to the east city limits.

Concord Boulevard from Port Chicago Highway to Denkinger Road.Concord Boulevard from Clayton Road to Galindo Street.

Concord Boulevard from Port Chicago Highway to Landana Drive.

Concord Boulevard from Landana Drive to Ayers Road.

Concord Boulevard from Ayers Road to Kirker Pass Road.

Concord Boulevard from Kirker Pass Road to City Limit.

Cowell Road from Babel Lane to Treat Boulevard.

Cowell Road from Treat Boulevard to Ygnacio Valley Road.

David Avenue from Oak Grove Road to Bancroft Road.

Cowell Road from Monument Boulevard to Ygnacio Valley Road.

Detroit Avenue from Monument Boulevard to Whitman Road.

Diamond Boulevard from Concord Avenue to Willow Pass Road.

East Street from Bacon Street to High School Avenue.

Galindo Street from Monument Boulevard to Clayton Road.

Grant Street from High School Avenue to Solano Way.

Laura Alice Way from Arnold Industrial Way to Nelson Avenue.

Market Street from Concord Avenue to Meadow Lane.

Minert Road from Oak Grove Road to City Limit.

Meadow Lane from Market Street to Monument Boulevard.

Monument Boulevard from Galindo StreetCowell Road to the southwest city City limitsLimits.

Nelson Avenue from Laura Alice Way to Bates Avenue.

Oak Grove Road from Monument Boulevard to Fox WayJunction Drive.

Oak Grove Road from Junction Drive to City Limit.

Olivera Road from Willow Pass Road to Hamilton Avenue.

Pine Hollow Road from Alberta Way to the east city City limitsLimits.

Port Chicago Highway from Almond Avenue to Olivera Road.

Rolling Woods Way from Pine Hollow Road to northernmost boundary of the Crystyl Ranch development.

San Miguel Road from Systron Drive to Homewood Drive.

Solano Way from State Highway 4Arnold Industrial Way to the Southern Pacific Railroad tracksHilltop Road.

Turtle Creek Road from Treat Boulevard to Swallow Tail Road.

Turtle Creek Road from Swallow Tail Road to Ayers Road to Fallbrook Road.

Whitman Road from Oak Grove Road to Detroit Avenue.

Willow Pass Road from Contra Costa Boulevard to Galindo StreetMarket Street.

Willow Pass Road from Market Street to Galindo Street.

Willow Pass Road from Parkside Drive to Lynwood Drive.
(6) Thirty miles per hour.

Arnold Industrial Place from Peralta RoadSolano Way to the east endits eastern termination.

Ayers Road from Clayton Road to Concord Boulevard.

Ayers Road from Ygnacio Valley Road to Clayton Road.

Babel Lane from Clayton Road to Cowell Road.

Burnett Avenue from Diamond BoulevardHighway 680 Northbound On/Off Ramp to John Glenn Drive.

California State Hayward Campus Road from Pine Hollow Road to Ygnacio Valley Road.

Clayton Road from Galindo Street to Oakland Avenue.

Commerce Avenue from Concord Avenue to the south endits southern termination.

Concord Avenue from Market Street to Salvio Street.

Commercial Circle (east) from Dean Lesher Drive to Bates Avenue.

Concord Boulevard from Port Chicago Highway to Galindo Street.

Cowell Road from Monument Boulevard to Babel Lane.

Denkinger Road from Clayton Road to Concord Boulevard.

Detroit Avenue from Sunshine Drive to Monument Boulevard.

East Street from Bacon StreetHigh School Avenue to Pacheco Street.

Farm Bureau Road from Willow Pass Road to Clayton Road.

Galaxy Way from Commerce Avenue to Via De Mercados.

Galaxy Way from the west endits western termination to John Glenn DriveMeridian Park Boulevard.

Galindo Street from Monument Boulevard to Salvio Street to Clayton Road.

Grant Street from High School Avenue to Solano Way.

John Glenn Drive/Galaxy Way from Concord Avenue to Galaxy WayMeridian Park Boulevard.

Laura Alice Way from Arnold Industrial Way to Nelson Avenue.

Meadow Lane from Market Street to Monument Boulevard.

Meridian Park Boulevard from Concord Avenue to Willow Way.

Myrtle Drive from Ayers Road to Kirker Pass Road.

North Larwin Drive for its entire length.

Oakland Avenue from Clayton Road to Mt. Diablo Street.

Olivera Road from Solano Way to Hillsborough Drive.

Peralta Road from Olivera Road to Arnold Industrial PlaceWay.

Port Chicago Highway from Clayton Road to Almond Avenue.

Rolling Woods Way from Pine Hollow Road to the northernmost boundary of the Crystyl Ranch development.

San Miguel Road from 886 San Miguel Road to Treat Boulevard.

Solano Way from the Southern Pacific Railroad tracksHilltop Road to Grant Street.

South Larwin Drive for its entire length.

Turtle Creek Road from Treat Boulevard to Fallbrook Road.

Via De Mercados from Concord Avenue to Galaxy Way.

Willow Pass Road from Galindo Street to Parkside Drive.

West Street from Clayton Road to Concord Boulevard.
(7) Twenty-five miles per hour.

All other roadways within the city City unless otherwise posted.

Alberta Way from Clayton Road to Ygnacio Valley Road.

Detroit Avenue from Clayton Road to Monument Boulevard.

East Street from Pacheco Street to Clayton Road.

Galaxy Way from Commerce Avenue to Via De Mercados.

Mohr Lane from Monument Boulevard to David Avenue.

Oakland Avenue from Clayton Road to Mt Diablo Street.

Olivera Road from Hillsborough Drive to Hamilton Avenue.

Salvio Street from Port Chicago Highway to Olivera Road.

Hitchcock Road from Court Lane to Kaski Lane.

Rolling Woods Way from the northernmost boundary of the Crystyl Ranch development to Crystyl Ranch Drive.

San Miguel Road from 886 San Miguel RoadTreat Boulevard to Homewood Drive.

West Street from Clayton Road to Concord Boulevard.
(8) Twenty miles per hour.

The entire length of Ridge Park Drive from the beginning of Cowell Road until said road returns to Cowell Road.
(Code 1965, § 3292; Code 2002, § 106-181. Ord. No. 743; Ord. No. 751; Ord. No. 790; Ord.

No. 793; Ord. No. 817; Ord. No. 862; Ord. No. 874; Ord. No. 887; Ord. No. 912; Ord. No. 947; Ord. No. 957; Ord. No. 963; Ord. No. 972; Ord. No. 978; Ord. No. 985; Ord. No. 1027;

Ord. No. 1038; Ord. No. 1055; Ord. No. 1056; Ord. No. 1066; Ord. No. 1088; Ord. No. 1095; Ord. No. 1121; Ord. No. 1144; Ord. No. 1150; Ord. No. 1153; Ord. No. 1185; Ord. No. 1223; Ord. No. 1230; Ord. No. 1231; Ord. No. 1234; Ord. No. 1243; Ord. No. 83-3; Ord. No. 84-1; Ord. No. 84-23; Ord. No. 88-27; Ord. No. 88-28; Ord. No. 89-22; Ord. No. 91-5; Ord. No. 96- 5; Ord. No. 97-14; Ord. No. 99-12; Ord. No. 02-4, §§ 2, 3, 4, 5; Ord. No. 13-2; Ord. No. 15-2, §§ 2, 3; Ord. No. 17-1, § 2)

Roadway From To Removed Added Modified
Arnold Industrial Place Peralta Road Solano Way Eastern Termination x Arnold Industrial Way Port Chicago Highway the west city limits EBMUD Aquaduct x Arnold Industrial Way EBMUD Aquaduct City Limit x
Bailey Road Clayton Road 750 feet northeast of Myrtle Drive Concord Boulevard x Bailey Road 750 feet northeast of Myrtle Drive Concord Boulevard 4,850 2500 feet northeast of Myrtle Drive x Bailey Road 4,850 2500 feet northeast of Myrtle Drive east City Limits x Burnett Avenue Highway 680 Northbound on/off ramp Diamond Boulevard John Glenn Drive x Burnett Avenue Diamond Boulevard John Glenn Drive x
California State Hayward Campus Road Pine Hollow Road Ygnacio Valley Road x Concord Boulevard Port Chicago Highway Denkinger Road Landana Drive x Concord Boulevard Denkinger Road Landana Drive east city limits Kirker Pass Road x Cowell Road Monument Boulevard Ygnacio Valley Road Babel Lane x Cowell Road Babel Lane Treat Boulevard x
Cowell Road Treat Boulevard Ygnacio Valley Road x
Crystyl Ranch Drive Ygnacio Valley Road Hiddencrest Court x Detroit Avenue Sunshine Drive Clayton Rooad Monument Boulevard x East Street High School Avenue Bacon Street Pacheco Street x East Street Bacon Street Pacheco Street Pacheco Street Clayton Road x Galaxy Way Western Termination John Glenn Drive Meridian Park Boulevard x Galindo Street Monument Boulevard Clayton Road Salvio Street x Galindo Street Clayton Road Salvio Street x
Hitchcock Road Court Lane Kaski Lane x
John Glenn Drive/Galaxy Way Concord Avenue Galaxy Way Meridian Park Boulevard x Mohr Lane Monument Boulevard David Avenue x
Oak Grove Road Monument Boulevard Fox Way Junction Drive x Oak Grove Road Fox Way Junction Drive south City Limits x Olivera Road Hillsborough Drive Hamilton Avenue x
Ridge Park Drive Cowell Road Cowell Road x
Rolling Woods Way the northernmost boundary of the Crystyl Ranch Crystyl Ranch Drive x Salvio Street Port Chicago Highway Olivera Road x
San Miguel Road 886 San Miguel Road Homewood Drive Treat Boulevard x San Miguel Road 886 San Miguel Road Homewood Drive x
Solano Way State Highway 4 Southern Pacific Railroad Hilltop Road x Solano Way Southern Pacific Railroad Hilltop Road Grant Street x Turtle Creek Road Treat Boulevard Fallbrook Road Swallow Tail Road x Turtle Creek Road Fallbrook Road Swallow Tail Road Ayers Road x Willow Pass Road Contra Costa Boulevard Galindo Street Market Street x Willow Pass Road Market Street Galindo Street x
Willow Pass Road Galindo Street Parkside Drive x
Ygnacio Valley Road Ayers Road Michigan Boulevard Clayton Road x Attachment 3: List of Added, Modified, and Removed Speed Zones Attachment 3

# Roadway From To
1 Alberta Way Clayton Road Ygnacio Valley Road
2 Arnold Industrial Place Solano Way Eastern Termination 3 Arnold Industrial Way Port Chicago Highway EBMUD Aquaduct ROW 4 Arnold Industrial Way EBMUD Aquaduct ROW City Limits
5 Avila Road Willow Pass Road City Limits
6 Ayers Road Clayton Road Concord Boulevard
7 Ayers Road Ygnacio Valley Road Clayton Road
8 Babel Lane Clayton Road Cowell Road
9 Bailey Road 2,500' NE of Myrtle Drive City Limits
10 Bailey Road Concord Boulevard 2,500' NE of Myrtle Drive 11 Bailey Road Clayton Road Concord Boulevard
12 Bancroft Road Mayhew Way Hookston Road
13 Bates Avenue Nelson Avenue Port Chicago Highway
14 Burnett Avenue Highway 680 Northbound on/off ramp John Glenn Drive 15 Clayton Road Market Street Galindo Street
16 Clayton Road Galindo Street Oakland Avenue
17 Clayton Road Oakland Avenue Farm Bureau Road
18 Clayton Road Farm Bureau Road Ygnacio Valley Road
19 Commerce Avenue Concord Avenue Southern Termination
20 Concord Avenue City Limits Market Street
21 Concord Avenue Market Street Salvio Street
22 Concord Boulevard Clayton Road Galindo Street
23 Concord Boulevard Galindo Street Port Chicago Highway 24 Concord Boulevard Port Chicago Highway Landana Drive 25 Concord Boulevard Landana Drive Ayers Road
26 Concord Boulevard Ayers Road Kirker Pass Road
27 Concord Boulevard Kirker Pass Road City Limits
28 Cowell Road Monument Boulevard Babel Lane
29 Cowell Road Babel Lane Treat Boulevard
30 Cowell Road Treat Boulevard Ygnacio Valley Road
31 Crystyl Ranch Drive Ygnacio Valley Road Hiddencrest Court 32 David Avenue Oak Grove Road Bancroft Road
33 Denkinger Road Clayton Road Concord Boulevard
34 Detroit Avenue Clayton Road Monument Boulevard
35 Detroit Avenue Monument Boulevard Whitman Road
36 Diamond Boulevard Concord Avenue Willow Pass Road
37 East Street High School Avenue Pacheco Street
38 East Street Pacheco Street Clayton Road
39 Farm Bureau Road Willow Pass Road Clayton Road
40 Galaxy Way Commerce Avenue Via De Mercados
41 Galaxy Way Western Termination Meridian Park Boulevard 42 Galindo Street Monument Boulevard Salvio Street
43 Grant Street High School Avenue Solano Way
44 John Glenn Drive/Galaxy Way Meridian Park Boulevard Concord Avenue 45 Kirker Pass Road City Limits Myrtle Drive
46 Kirker Pass Road Myrtle Drive Clayton Road
47 Laura Alice Way Arnold Industrial Way Nelson Avenue
48 Market Street Concord Avenue Meadow Lane
49 Marsh Drive Solano Way City Limits
Attachment 4: List of Proposed Speed Zones
Attachment 4

# Roadway From To
Attachment 4: List of Proposed Speed Zones
50 Meadow Lane Market Street Monument Boulevard
51 Meridian Park Boulevard Concord Avenue Willow Way
52 Minert Road Oak Grove Road City Limits
53 Monument Boulevard Cowell Road City Limits
54 Mohr Lane Monument Boulevard David Avenue
55 Myrtle Drive Ayers Road Kirker Pass Road
56 Nelson Avenue Laura Alice Way Bates Avenue
57 North Larwin Drive Entire Length Entire Length
58 Oak Grove Road Monument Boulevard Junction Drive
59 Oak Grove Road Junction Drive City Limits
60 Oakland Avenue Clayton Road Mt Diablo Street
61 Olivera Road Solano Way Hillsborough Drive
62 Olivera Road Hillsborough Drive Hamilton Avenue
63 Olivera Road Hamilton Avenue Willow Pass Road
64 Peralta Road Olivera Road Arnold Industrial Way
65 Pine Hollow Road Alberta Way City Limits
66 Port Chicago Highway Clayton Road Almond Avenue
67 Port Chicago Highway Almond Avenue Olivera Road
68 Port Chicago Highway Olivera Road Panoramic Drive
69 Port Chicago Highway Panoramic Drive City Limits
70 Rolling Woods Way Pine Hollow Road northernmost boundary of the Crystyl Ranch development 71 Salvio Street Port Chicago Highway Olivera Road
72 San Miguel Road Treat Boulevard Homewood Drive
73 San Miguel Road Systron Drive Homewood Drive
74 Solano Way Arnold Industrial Way Hilltop Road
75 Solano Way Hilltop Road Grant Street
76 South Larwin Drive Entire Length Entire Length
77 Treat Boulevard City Limits Oak Grove Road
78 Treat Boulevard Oak Grove Road San Miguel Road
79 Treat Boulevard San Miguel Road Clayton Road
80 Turtle Creek Road Treat Boulevard Swallow Tail Road
81 Turtle Creek Road Swallow Tail Road Ayers Road
82 Via De Mercados Concord Avenue Galaxy Way
83 West Street Clayton Road Concord Boulevard
84 Whitman Road Oak Grove Road Detroit Avenue
85 Willow Pass Road Contra Costa Boulevard Market Street 86 Willow Pass Road Market Street Galindo Street
87 Willow Pass Road Galindo Street Parkside Drive
88 Willow Pass Road Parkside Drive Lynwood Drive
89 Willow Pass Road Lynwood Drive 2,000' N of Lynwood Drive 90 Willow Pass Road 2,000' N of Lynwood Drive State Highway 4 91 Ygnacio Valley Road City Limits Ayers Road
92 Ygnacio Valley Road Ayers Road Clayton Road

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: North - South
25 MPH
Approved and Authorized for release by City of Concord Transportation Division:

Street Classification Collector
Traffic signals control traffic at Clayton Road & Ygnacio Valley Road. All-way stops control traffic at Greenmeadow Drive/Park Highlands Boulevard.

D. CONDITIONS NOT READILY APPARENT
Alberta Way between Clayton Road and Ygnacio Valley Road is a collector street with one travel lane in each direction and a two-way left-turn lane. The segment has sidewalk on both sides of the street except in front of the high school which only has sidewalk on the east side of the road. Class 3 bicycle facilities run the length of the street in both directions. Abutting land use is primarily residential, with commercial properties on the ends and two schools (Clayton Valley High School & Ygnacio Valley Christian School), all of which generate pedestrian, bicyclist, and vehicular traffic.

Roadway Geometrics and
Intersections
Based on the factors listed above and in compliance with the CVC, the speed limit will be lowered to 25 mph on Alberta Way between Clayton Road and Ygnacio Valley Road. This recommendation is based on the downward rounding of the measured 85th percentile speed (34 mph) by 5 mph per CVC 22358.6(b) and an additional 5 mph speed reduction due to the adjacent Clayton Valley Charter High School which creates high concentrations of bicyclists and pedestrians per CVC 22358.7(a)(2).

Collision Rate (ACC/MVM) 2.26
Signature
Length of Segment (ft.) 3,440
Lane Configuration One (1) travel lane in each direction, with a two-way-left-turn lane (TWTL) Statewide Collision Rate 1.02 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 4,970
Speed Limit Determination
Aaron Elias T.E., Transportation Program Manager II
Revised Speed Limit
Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 8
B. COLLISION HISTORY
Existing Posted Speed Limit 35 MPH
25-34

76.5%
A. PREVAILING SPEED DATA
Location of Survey
85th Percentile
10 mph Pace
Percent in Pace
8/13/2024
City of Concord

34.0 City of Concord
General Conditions
Existing Posted Speed Limit
Revised Speed Limit
Speed Limit Change?
25 MPH
Yes
35 MPH
Clayton Road - Ygnacio Valley Road Limits:

Alberta Way Quality Counts (QC)
Summary
Engineering and Traffic Survey (E&TS)
Aaron Elias, City of Concord
Attachment 5

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: East - West
Not Applicable
Approved and Authorized for release by City of Concord Transportation Division:

Aaron Elias T.E., Transportation Program Manager II
Signature
Revised Speed Limit Not Applicable
Arnold Industrial Place between Solano Way and East End is a two-lane arterial with a pedestrian walkway on the north side, no bicycle facilities, and parking allowed on both sides of the street for most of its length. Abutting land uses include public storage, auto repair shops, wholesale stores, manufacturing facilities and offices, and the West Wind Solano Drive-In and swap-meet. The swap meet is very popular on weekends leading to a significant amount of pedestrian activity.

Roadway Geometrics and
Intersections
A signal is present at Solano Way while Peralta Road is all-way stop-controlled. Other intersections such at the SR 4 eastbound ramps are side street stop controlled.

Speed Limit Determination
Based on the factors listed above, it is appropriate to maintain a speed limit of 30 MPH on Arnold Industrial Place between Solano Way and the East End. This recommendation is based on the downward rounding of the measured 85th percentile speed (35 mph) by 5 mph per CVC 22358.6(b) due to high pedestrian activity in the vicinity of the Solano Drive-In from the swap meet. Therefore, no change in the existing speed limit is recommended.

General Conditions
Speed Limit Change?
Existing Posted Speed Limit
No
30 MPH
Statewide Collision Rate 1.02 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 8,842
D. CONDITIONS NOT READILY APPARENT
4,068
Lane Configuration One (1) travel lane in each direction Street Classification Arterial
Length of Segment (ft.)
Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 14
Collision Rate (ACC/MVM) 1.41
B. COLLISION HISTORY
A. PREVAILING SPEED DATA
Location of Survey
85th Percentile
10 mph Pace
Percent in Pace

35.0 26-35

80.1%
City of Concord
30 MPH Revised Speed LimitExisting Posted Speed Limit
Arnold Industrial Place Quality Counts (QC)
Summary
Engineering and Traffic Survey (E&TS)
City of Concord
Aaron Elias, City of Concord
3/12/2025Solano Way - Eastern TerminationLimits:

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: East - West
Not Applicable
Approved and Authorized for release by City of Concord Transportation Division:

Aaron Elias T.E., Transportation Program Manager II
Signature
Revised Speed Limit Not Applicable
Arnold Industrial Way between the East Bay MUD aqueduct and Port Chicago Highway is a two-lane arterial with commercial driveways on both sides of the street. The street has sidewalk primarily on the south side with occasional sidewalk on the north side at newer developments. Abutting land uses include Central Contra Costa Transit Center, commercial offices, and light industrial uses.

Roadway Geometrics and
Intersections
The alignment of Arnold Industrial Way along this segment has both horizontal and vertical curves. A traffic signal controls traffic at Port Chicago Highway while other intersections are side-street stop- controlled.

Speed Limit Determination
Based on the factors listed above, it is appropriate to maintain a speed limit of 45 MPH on Arnold Industrial Way between the East Bay MUD aqueduct and Port Chicago Highway. This recommendation is based on rounding the prevailing 85th Percentile speed (46 MPH) to the nearest 5 MPH increment (45 MPH) per CVC 22358.6(a). Therefore, no change in the existing speed limit is recommended.

General Conditions
Speed Limit Change?
Existing Posted Speed Limit
No
45 MPH
Statewide Collision Rate 1.02 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 4,967
D. CONDITIONS NOT READILY APPARENT
4,255
Lane Configuration One (1) travel lane in each direction Street Classification Arterial
Length of Segment (ft.)
Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 4
Collision Rate (ACC/MVM) 0.68
B. COLLISION HISTORY
A. PREVAILING SPEED DATA
Location of Survey
85th Percentile
10 mph Pace
Percent in Pace
City of Concord

46.0 36-45

74.0%
45 MPH Revised Speed LimitExisting Posted Speed Limit
Arnold Industrial Way Quality Counts (QC)
Summary
Engineering and Traffic Survey (E&TS)
City of Concord
Aaron Elias, City of Concord
3/13/2025EBMUD Aqueduct - Port Chicago HighwayLimits:

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: East - West
Not Applicable
Approved and Authorized for release by City of Concord Transportation Division:

Aaron Elias T.E., Transportation Program Manager II
Signature
Revised Speed Limit Not Applicable
Arnold Industrial Way between the West City Limits and the East Bay MUD aqueduct is a two-lane arterial that is generally divided by either a median or a two-way left turn lane. Abutting land uses include hardware stores, auto repair shops, a cemetery, and other similar uses. Sidewalks are sporadic, located mainly where newer development has occurred. There are no bicycle facilities on Arnold Industrial Way.

Roadway Geometrics and
Intersections
The alignment of Arnold Industrial Way along this segment has both horizontal and vertical curves. Traffic signals control traffic at Lowes Driveway and Peralta Road/Laura Alice Way.

Speed Limit Determination
Based on the factors listed above, it is appropriate to maintain a speed limit of 35 MPH on Arnold Industrial Way between the western city limit and the EBMUD aqueduct. This recommendation is made based on rounding the prevailing 85th percentile speed (36 MPH) to the nearest 5 MPH increment (35 MPH) per CVC 22358.6(a). Therefore, no change in the existing speed limit is recommended.

General Conditions
Speed Limit Change?
Existing Posted Speed Limit
No
35 MPH
Statewide Collision Rate 1.02 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 5,654
D. CONDITIONS NOT READILY APPARENT
5,438
Lane Configuration One (1) travel lane in each direction Street Classification Secondary Arterial
Length of Segment (ft.)
Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 12
Collision Rate (ACC/MVM) 1.41
B. COLLISION HISTORY
A. PREVAILING SPEED DATA
Location of Survey
85th Percentile
10 mph Pace
Percent in Pace
City of Concord

36.0 27-36

56.5%
35 MPH Revised Speed LimitExisting Posted Speed Limit
Arnold Industrial Way Quality Counts (QC)
Summary
Engineering and Traffic Survey (E&TS)
City of Concord
Aaron Elias, City of Concord
3/11/2025West City Limits - EBMUD AqueductLimits:

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: East - West
Not Applicable
Approved and Authorized for release by City of Concord Transportation Division:

Summary
Engineering and Traffic Survey (E&TS)
City of Concord
Based on the factors listed above and in compliance with the CVC, it is appropriate to maintain a speed limit of 40 MPH on Avila Road between Willow Pass Road and the East City Limits via downward rounding of the measured 85th Percentile speed (43 MPH) by 5 mph per CVC 22358.6(c). Therefore, no change in the existing speed limit is recommended.

General Conditions
Street Classification Local

1.02 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 473
Revised Speed Limit
Aaron Elias T.E., Transportation Program Manager II
4/30/2024
Speed Limit Determination
Revised Speed Limit
Speed Limit Change?
Existing Posted Speed Limit
Not Applicable
No
40 MPH
D. CONDITIONS NOT READILY APPARENT
Avila Road between Willow Pass Road and the East City Limits is a local street with one travel lane in each direction. The street is scantly populated and therefore generates very low vehicular traffic. There is a partial sidewalk on the north side of the street in the middle of the segment but none on the ends or south side. The segment has curb and gutter throughout the entire length with only a few land uses (Concord Police range and vehicle storage) in the vicinity.

Roadway Geometrics and
Intersections The alignment of Avila Road leads to both horizontal and vertical curvature along the segment.

B. COLLISION HISTORY
Existing Posted Speed Limit
Signature
40 MPH
Length of Segment (ft.) 4,467
Lane Configuration One (1) travel lane in each direction Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 1
Collision Rate (ACC/MVM) 2.28
Statewide Collision Rate
City of Concord

43.0 36-45

60.0%
85th Percentile
10 mph Pace
Percent in Pace
A. PREVAILING SPEED DATA
Location of Survey
Limits: Aaron Elias, City of Concord
Avila Road Quality Counts (QC)
Willow Pass Road - East City Limits

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: North - South
Not Applicable
Approved and Authorized for release by City of Concord Transportation Division:

Aaron Elias, City of Concord
6/4/2024
General Conditions
28-37

75.0%
30 MPH Revised Speed Limit
B. COLLISION HISTORY
A. PREVAILING SPEED DATA
Location of Survey
85th Percentile
10 mph Pace
Percent in Pace
Existing Posted Speed Limit
Ayers Road Quality Counts (QC)
Summary
Engineering and Traffic Survey (E&TS)
City of Concord
City of Concord

37.0 Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 7
Collision Rate (ACC/MVM) 1.54
2,782
Lane Configuration One (1) travel lane in each direction Street Classification Collector
Length of Segment (ft.)
Speed Limit Change?
Existing Posted Speed Limit
No
30 MPH
Ayers Road between Concord Boulevard and Clayton Road is a collector street with one travel lane in each direction with a parking lane and sidewalk dispersed intermittently along both sides of the roadway.

Abutting land uses include primarily single family residential, an apartment complex, and a gas station with attached fast-food restaurant (Popeyes), all of which generate pedestrian, bicyclist, and vehicular traffic.

Roadway Geometrics and
Intersections
Traffic signals control traffic at Clayton Road and at Concord Boulevard. There is also an all-way stop control at Olive Drive.

Speed Limit Determination
Based on the factors listed above and in compliance with the CVC, it is appropriate to maintain a speed limit of 30 MPH on Ayers Road between Concord Boulevard and Clayton Road. This is based on rounding the measured 85th Percentile speed (37 MPH) to the nearest 5 mph increment and taking an additional 5 mph reduction to account for the residences fronting the street and the commercial land uses near Clayton Road (CVC 22358.6(b)). Therefore, no change in the existing speed limit is recommended.

Signature
Concord Boulevard - Clayton RoadLimits:

Revised Speed Limit Not Applicable
Aaron Elias T.E., Transportation Program Manager II
Statewide Collision Rate 1.02 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 7,855
D. CONDITIONS NOT READILY APPARENT

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: North - South
30 MPH
Approved and Authorized for release by City of Concord Transportation Division:

Aaron Elias, City of Concord
8/13/2024
General Conditions
26-35

83.0%
35 MPH Revised Speed Limit
B. COLLISION HISTORY
A. PREVAILING SPEED DATA
Location of Survey
85th Percentile
10 mph Pace
Percent in Pace
Existing Posted Speed Limit
Ayers Road Quality Counts (QC)
Summary
Engineering and Traffic Survey (E&TS)
City of Concord
City of Concord

35.0 Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 8
Collision Rate (ACC/MVM) 0.91
4,340
Lane Configuration One (1) to two (2) travel lane(s) in each direction w/ left turn channelization at intersections Street Classification arterial
Length of Segment (ft.)
Speed Limit Change?
Existing Posted Speed Limit
Yes
35 MPH
Ayers Road between Clayton Road and Ygnacio Valley Road is an arterial street with one travel lane in each direction between Seminole Circle and Clayton Road and two lanes in each direction between Ygnacio Valley Road and Seminole Circle. The road is divided with a hardscape median in the four-lane section and a painted median in the two-lane section. The street has horizontal curves and partial bike lanes in each direction. Abutting land uses include single family residential, an apartment complex, a shopping center and the Newall Community Park, all of which generate pedestrian, bicyclist, and vehicular traffic.

Roadway Geometrics and
Intersections
Traffic signals control traffic at Clayton Road and Ygnacio Valley Road while all-way stops control traffic at Garaventa Drive/Murchio Drive (S) and at Garaventa Drive/Murchio Drive (N).

Speed Limit Determination
Based on the factors listed above and in compliance with the CVC, it is appropriate to lower the speed limit to 30 mph on Ayers Road between Clayton Road and Ygnacio Valley Road. This is based on the measured 85th Percentile speed (35 MPH) and rounding down to the lower 5 mph increment per CVC 22358.6(c) to account for the pedestrian and bicyclist activity generated by the Newhall Community Park.

Signature
Ygnacio Valley Road - Clayton RoadLimits:

Revised Speed Limit 30 MPH
Aaron Elias T.E., Transportation Program Manager II
Statewide Collision Rate 1.02 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 9,756
D. CONDITIONS NOT READILY APPARENT

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: North - South
30 MPH
Approved and Authorized for release by City of Concord Transportation Division:

Aaron Elias, City of Concord
8/15/2024
General Conditions
29-38

78.0%
35 MPH Revised Speed Limit
B. COLLISION HISTORY
A. PREVAILING SPEED DATA
Location of Survey
85th Percentile
10 mph Pace
Percent in Pace
Existing Posted Speed Limit
Babel Lane Quality Counts (QC)
Summary
Engineering and Traffic Survey (E&TS)
City of Concord
City of Concord

37.0 Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 9
Collision Rate (ACC/MVM) 2.37
3,061
Lane Configuration One (1) travel lane in each direction Street Classification Arterial
Length of Segment (ft.)
Speed Limit Change?
Existing Posted Speed Limit
Yes
35 MPH
Babel Lane between Clayton Road and Cowell Road is an arterial street with one travel lane in each direction. The street has numerous driveways and intermittent sidewalks on both sides. Abutting land uses include primarily single family residential which generate pedestrian, bicyclist, and vehicular traffic. The street also serves as a continuation of the school route to El Monte Elementary via Kimball Way and Pancho Via Way.

Roadway Geometrics and
Intersections
Traffic signals control traffic at Cowell Road and at Clayton Road. Side streets are side-street stop controlled with Babel Lane being the free movement.

Speed Limit Determination
Based on the factors listed above and in compliance with the CVC, it is appropriate to reduce the speed limit to 30 MPH on Babel Lane between Cowell Road and Clayton Road. This is based on rounding the measured 85th Percentile speed (37 MPH) to the nearest 5 mph increment and taking an additional 5 mph reduction to account for the pedestrian and bicycle activity from the nearby school per CVC 22358.6(b).

Signature
Clayton Road - Cowell RoadLimits:

Revised Speed Limit 30 MPH
Aaron Elias T.E., Transportation Program Manager II
Statewide Collision Rate 1.02 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 5,988
D. CONDITIONS NOT READILY APPARENT

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: North - South
Not Applicable
Approved and Authorized for release by City of Concord Transportation Division:

Aaron Elias, City of Concord
5/2/2024
General Conditions
37-46

71.0%
45 MPH Revised Speed Limit
B. COLLISION HISTORY
A. PREVAILING SPEED DATA
Location of Survey
85th Percentile
10 mph Pace
Percent in Pace
Existing Posted Speed Limit
Bailey Road Quality Counts (QC)
Summary
Engineering and Traffic Survey (E&TS)
City of Concord
City of Concord

46.0 Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 13
Collision Rate (ACC/MVM) 0.99
5,135
Lane Configuration One (1) travel lane in each direction Street Classification Arterial
Length of Segment (ft.)
Speed Limit Change?
Existing Posted Speed Limit
No
45 MPH
Bailey Road between a point 2500 feet northeast of Myrtle Drive and the city limit is an arterial street with one travel lane in each direction. This segment contains open space on both sides and serves as a connector route to east county and thus attracts commute traffic. Abutting land use is open space.

Roadway Geometrics and
Intersections
The alignment of Bailey Road along this segment has both horizontal and vertical curves. There are no signals or signs affecting Bailey Road in this section but there is an inactive rail crossing.

Speed Limit Determination
Based on the factors listed above and in compliance with the CVC, it is appropriate to maintain a speed limit of 45 MPH on Bailey Road between a point 2500 feet northeast of Myrtle Drive and the city limit via rounding to the nearest 5 MPH increment per CVC 22358.6(a).

Signature
2500' Northeast of Myrtle Drive - City LimitLimits:

Revised Speed Limit Not Applicable
Aaron Elias T.E., Transportation Program Manager II
Statewide Collision Rate 1.02 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 12,319
D. CONDITIONS NOT READILY APPARENT

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: North - South
Not Applicable
Approved and Authorized for release by City of Concord Transportation Division:

Aaron Elias, City of Concord
6/4/2024
General Conditions

33.5-42.5

77.5%
35 MPH Revised Speed Limit
B. COLLISION HISTORY
A. PREVAILING SPEED DATA
Location of Survey
85th Percentile
10 mph Pace
Percent in Pace
Existing Posted Speed Limit
Bailey Road Quality Counts (QC)
Summary
Engineering and Traffic Survey (E&TS)
City of Concord
City of Concord

42.0 Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 14
Collision Rate (ACC/MVM) 1.29
4,523
Lane Configuration One (1) travel lane in each direction Street Classification Arterial
Length of Segment (ft.)
Speed Limit Change?
Existing Posted Speed Limit
No
35 MPH
Bailey Road between Concord Boulevard and a point 2500 feet northeast of Myrtle Drive is an arterial street with one travel lane in each direction and an unimproved trail along the west side of the segment which runs approximately between Concord Boulevard and Laura Drive. Abutting land uses include single family residential only between Concord Boulevard and Myrtle Drive and open space after Myrtle Drive to the north. The entrance to the Thurgood Marshall Regional Park is currently under design to be built within this segment east of Myrtle Drive. This segment also serves as a connector route to east county and thus attracts commute traffic.

Roadway Geometrics and
Intersections
A traffic signal controls traffic at Concord Boulevard and no other controls affecting Bailey Road are present within the segment.

Speed Limit Determination
Based on the factors listed above and in compliance with the CVC, it is appropriate to maintain a speed limit of 35 MPH on Bailey Road between Concord Boulevard and a point 2500 feet northeast of Myrtle Drive. This is based on rounding the measured 85th Percentile speed (42 MPH) to the nearest 5 mph increment and taking an additional 5 mph reduction to account for the residences fronting the street and the unimproved trail (CVC 22358.6(b)). Therefore, no change in the existing speed limit is recommended.

Signature
Concord Boulevard - 2500' n/e of Myrtle
DriveLimits:

Revised Speed Limit Not Applicable
Aaron Elias T.E., Transportation Program Manager II
Statewide Collision Rate 1.02 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 11,542
D. CONDITIONS NOT READILY APPARENT

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: North - South
Not Applicable
Approved and Authorized for release by City of Concord Transportation Division:

Aaron Elias, City of Concord
6/4/2024
General Conditions
32-41

76.5%
35 MPH Revised Speed Limit
B. COLLISION HISTORY
A. PREVAILING SPEED DATA
Location of Survey
85th Percentile
10 mph Pace
Percent in Pace
Existing Posted Speed Limit
Bailey Road Quality Counts (QC)
Summary
Engineering and Traffic Survey (E&TS)
City of Concord
City of Concord

40.0 Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 20
Collision Rate (ACC/MVM) 3.18
4,042
Lane Configuration One (1) travel lane in each direction Street Classification Arterial
Length of Segment (ft.)
Speed Limit Change?
Existing Posted Speed Limit
No
35 MPH
Bailey Road between Clayton Road and Concord Boulevard is an arterial street with one travel lane in each direction. The street has few commercial and residential driveways with limited sidewalks on the east side and an unimproved trail along the west side. Abutting land uses include single family residential, multifamily residential, and a small shopping center, all of which generate pedestrian, bicyclist, and vehicular traffic.

Roadway Geometrics and
Intersections
Traffic signals control traffic at Clayton Road and at Concord Boulevard with no other controls affecting Bailey Road between these two points.

Speed Limit Determination
Based on the factors listed above and in compliance with the CVC, it is appropriate to maintain the speed limit at 35 mph on Bailey Road between Concord Boulevard and Clayton Road. This is based on the measured 85th Percentile speed (40 MPH) and rounding down to the lower 5 mph increment per CVC 22358.6(c) to account for the pedestrian and bicyclist activity generated by the residential buildings, the unimproved trail along the west side of the road, and the neighborhood shopping center.

Signature
Clayton Road - Concord BoulevardLimits:

Revised Speed Limit Not Applicable
Aaron Elias T.E., Transportation Program Manager II
Statewide Collision Rate 1.02 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 7,501
D. CONDITIONS NOT READILY APPARENT

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: North - South
Not Applicable
Approved and Authorized for release by City of Concord Transportation Division:

Summary
Engineering and Traffic Survey (E&TS)
City of Concord
Aaron Elias T.E., Transportation Program Manager II
Bancroft Road between Mayhew Way and Hookston Road is a two-lane arterial with full sidewalk on the east side and partial sidewalk on the west side. Abutting land uses primarily include single family residential, multi-family residential, and limited businesses such as combat fitness and roofing companies.

On-street parking is allowed and that in combination with the residential land uses on both sides contribute to pedestrian crossing activity.

Roadway Geometrics and
Intersections
The alignment of Bancroft Road along this segment follows a horizontal curve. Traffic signals control traffic at Hookston Road while the remaining intersections are side-street stop-controlled.

Speed Limit Determination
Based on the factors listed above, it is appropriate to maintain a speed limit of 35 MPH on Bancroft Road between Mayhew Way and Hookston Road. This recommendation is based on downward rounding of the prevailing 85th Percentile speed (39 MPH) to 35 MPH per CVC 22358.6(c). Therefore, no change in existing speed limit is recommended.

General Conditions
Speed Limit Change?
Existing Posted Speed Limit
No
Signature
Revised Speed Limit Not Applicable
35 MPH
Statewide Collision Rate 1.02 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 12,058
D. CONDITIONS NOT READILY APPARENT
1,558
Lane Configuration One (1) travel lane in each direction Street Classification Arterial
Length of Segment (ft.)
Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 3
Collision Rate (ACC/MVM) 0.58
B. COLLISION HISTORY
A. PREVAILING SPEED DATA
Location of Survey
85th Percentile
10 mph Pace
Percent in Pace
35 MPH Revised Speed Limit
City of Concord

39.0 29-38

72.9%
Existing Posted Speed Limit
Bancroft Road Quality Counts (QC)
Aaron Elias, City of Concord
3/11/2025Mayhew Way - Hookston Road Limits:

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: East - West
Not Applicable
Approved and Authorized for release by City of Concord Transportation Division:

Summary
Engineering and Traffic Survey (E&TS)
City of Concord
Aaron Elias T.E., Transportation Program Manager II
Bates Avenue between Nelson Avenue and Port Chicago Highway is generally a four-lane collector with sporadic sidewalks on both the north and south side of the street. Abutting land uses are light industrial in nature such as roofing and fence contractors, food banks, and trucking companies. The EBMUD water treatment plant is also located in this segment.

Roadway Geometrics and
Intersections
The alignment of Bates Avenue includes a horizontal curve in the vicinity of Mason Circle. Bancroft Road along this segment follows a horizontal curve. Traffic signals control traffic at Port Chicago Highway while the remaining roadways are side-street stop-controlled.

Speed Limit Determination
Based on the factors listed above and accounting for the existing speed limit, it is appropriate to maintain a speed limit of 35 MPH on Bates Avenue from Nelson Avenue to Port Chicago Highway. This recommendation is based on downward rounding of the prevailing 85th Percentile speed (40 MPH) to 35 MPH per CVC 22358.6(c). Therefore, no change in the existing speed limit is recommended.

General Conditions
Speed Limit Change?
Existing Posted Speed Limit
No
Signature
Revised Speed Limit Not Applicable
35 MPH
Statewide Collision Rate 1.16 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 4,097
D. CONDITIONS NOT READILY APPARENT
5,702
Lane Configuration Two (2) travel lanes in each direction Street Classification Collector
Length of Segment (ft.)
Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 8
Collision Rate (ACC/MVM) 1.24
B. COLLISION HISTORY
A. PREVAILING SPEED DATA
Location of Survey
85th Percentile
10 mph Pace
Percent in Pace
35 MPH Revised Speed Limit
City of Concord

40.0 32-41

67.0%
Existing Posted Speed Limit
Bates Avenue Quality Counts (QC)
Aaron Elias, City of Concord
3/11/2025Nelson Avenue - Port Chicago HighwayLimits:

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: East - West
30 MPH
Approved and Authorized for release by City of Concord Transportation Division:

Summary
Engineering and Traffic Survey (E&TS)
City of Concord
Aaron Elias T.E., Transportation Program Manager II
Burnett Avenue between I-680 Ramps and John Glenn Drive is a four-lane, raised median arterial between the I-680 ramps and Meridian Park Boulevard. Between Meridian Park Boulevard John Glenn Drive, the roadway is two-lane undivided. Sidewalks are present along the north side of the street for the entire length while sidewalks are available along the south side between I-680 and Meridian Park Boulevard. Adjacent land uses include car dealerships, a hotel, business park, and a lumber company. On- street parking is allowed on most of the corridor but there are no bicycle facilities.

Roadway Geometrics and
Intersections The roadway is straight except between Meridian Park Boulevard where the road has horizontal curvature.

Speed Limit Determination
Based on the factors listed above, it is appropriate to reduce the speed limit from 35 MPH to 30 MPH on Burnett Avenue between I-680 Ramps and John Glenn Drive. This recommendation is based on the downward rounding of the prevailing 85th Percentile speed (34 MPH) to 30 MPH per CVC 22358.6(c).

General Conditions
Speed Limit Change?
Existing Posted Speed Limit
Yes
Signature
Revised Speed Limit 30 MPH
35 MPH
Statewide Collision Rate 1.02 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 5,156
D. CONDITIONS NOT READILY APPARENT
2,448
Lane Configuration One (1) to two (2) travel lanes in each direction Street Classification Arterial
Length of Segment (ft.)
Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 7
Collision Rate (ACC/MVM) 2.01
B. COLLISION HISTORY
A. PREVAILING SPEED DATA
Location of Survey
85th Percentile
10 mph Pace
Percent in Pace
35 MPH Revised Speed Limit
City of Concord

34.0 26-35

69.5%
Existing Posted Speed Limit
Burnett Avenue Quality Counts (QC)
Aaron Elias, City of Concord
3/25/2025I-680 NB Ramps - John Glen DriveLimits:

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: East - West
Not Applicable
Approved and Authorized for release by City of Concord Transportation Division:

Aaron Elias, City of Concord
5/23/2024
General Conditions
27-36

76.4%
35 MPH Revised Speed Limit
B. COLLISION HISTORY
A. PREVAILING SPEED DATA
Location of Survey
85th Percentile
10 mph Pace
Percent in Pace
Existing Posted Speed Limit
Clayton Road Quality Counts (QC)
Summary
Engineering and Traffic Survey (E&TS)
City of Concord
City of Concord

36.0 Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 99
Collision Rate (ACC/MVM) 4.18
4,142
Lane Configuration Three (3) travel lanes in each direction w/ raised median Street Classification Arterial
Length of Segment (ft.)
Speed Limit Change?
Existing Posted Speed Limit
No
35 MPH
Clayton Road between Market Street and Galindo Street is an arterial street with sidewalks on both sides.

The street has three travel lanes in each direction with exclusive turn lanes at the signalized intersections.

Abutting land uses include offices and small businesses on the north side, as well as apartment complexes and Ellis Lake Park on the south side, all of which generate pedestrian, bicyclist, and vehicular traffic.

Roadway Geometrics and
Intersections
Traffic signals control traffic at Market Street, Pine Street, Detroit Avenue, Gateway Boulevard, Fry Way, Ellis Street, Sutter Street, and Galindo Street.

Speed Limit Determination
Based on the factors listed above and in compliance with the CVC, it is appropriate to maintain a speed limit of 35 MPH on Clayton Road between Market Street and Galindo Street via rounding the 85th percentile to the nearest 5 MPH increment per CVC 22358.6(a). Therefore, no change in the existing speed limit is recommended.

Signature
Market Street - Galindo StreetLimits:

Revised Speed Limit Not Applicable
Aaron Elias T.E., Transportation Program Manager II
Statewide Collision Rate 0.95 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 27,568
D. CONDITIONS NOT READILY APPARENT

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: East - West
30 MPH
Approved and Authorized for release by City of Concord Transportation Division:

Aaron Elias, City of Concord
9/17/2024
General Conditions
21-30

61.0%
35 MPH Revised Speed Limit
B. COLLISION HISTORY
A. PREVAILING SPEED DATA
Location of Survey
85th Percentile
10 mph Pace
Percent in Pace
Existing Posted Speed Limit
Clayton Road Quality Counts (QC)
Summary
Engineering and Traffic Survey (E&TS)
City of Concord
City of Concord

34.0 Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 44
Collision Rate (ACC/MVM) 6.58
2,041
Lane Configuration Three (3) to five (5) travel lanes in one direction Street Classification Arterial
Length of Segment (ft.)
Speed Limit Change?
Existing Posted Speed Limit
Yes
35 MPH
Clayton Road between Galindo Street and Oakland Avenue is an eastbound, one-way arterial street with sidewalk on both sides. The segment also features a one-way bike lane on the south side between Galindo Street and Grant Street. The number of travel lanes varies from three to five along this segment of Clayton Road with either shared or exclusive turn lanes at Grant Street, Colfax Street, Park Street, and Oakland Avenue. The area is predominantly commercial and abutting land uses include offices which generate pedestrian activity, especially at the signalized midblock crosswalk between Galindo Street and Grant Street.

Roadway Geometrics and
Intersections
Traffic signals control traffic at Galindo Street, Bank of America Pedestrian Crossing, Grant Street, Colfax Street, Park Street, and Oakland Avenue.

Speed Limit Determination
Based on the factors listed above and in compliance with the CVC, it is appropriate to reduce the speed limit to 30 mph on Clayton Road between Galindo Street and Oakland Avenue. This is based on the measured 85th Percentile speed (34 MPH) and rounding down to the lower 5 mph increment per CVC 22358.6(c) to account for the high volume of pedestrian activity that occurs between the office buildings.

Signature
Galindo Street - Oakland AvenueLimits:

Revised Speed Limit 30 MPH
Aaron Elias T.E., Transportation Program Manager II
Statewide Collision Rate 0.95 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 15,802
D. CONDITIONS NOT READILY APPARENT

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: East - West
Not Applicable
Approved and Authorized for release by City of Concord Transportation Division:

Aaron Elias, City of Concord
5/23/2024
General Conditions
32-41

70.1%
35 MPH Revised Speed Limit
B. COLLISION HISTORY
A. PREVAILING SPEED DATA
Location of Survey
85th Percentile
10 mph Pace
Percent in Pace
Existing Posted Speed Limit
Clayton Road Quality Counts (QC)
Summary
Engineering and Traffic Survey (E&TS)
City of Concord
City of Concord

41.0 Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 71
Collision Rate (ACC/MVM) 1.95
6,706
Lane Configuration Two (2) travel lanes in each direction w/ raised median Street Classification Arterial
Length of Segment (ft.)
Speed Limit Change?
Existing Posted Speed Limit
No
35 MPH
Clayton Road between Oakland Avenue and Farm Bureau Road is a divided arterial street with two travel lanes in each direction and dedicated left turn lanes at signalized intersections and the major unsignalized intersection. There is sidewalk on both sides but no marked bicycle facilities. Abutting land uses include offices, strip malls, single and multi-family residential, small businesses, gas stations, etc., all of which generate pedestrian, bicyclist, and vehicular traffic. Being a truck route, a fairly large number of heavy vehicles routinely travel on Clayton Road. Contra Costa Canal Trail also intersects Clayton Road along this segment near The Alameda.

Roadway Geometrics and
Intersections
Traffic signals control traffic at Oakland Avenue, The Alameda, 6th Street/Coventry Road, Contra Costa Canal Trail, Chestnut Avenue, Babel Lane, and at Farm Bureau Road. There is also a pedestrian hybrid beacon at Barbis Way.

Speed Limit Determination
Based on the factors listed above and in compliance with the CVC, it is appropriate to maintain a speed limit of 35 MPH on Clayton Road between Oakland Avenue and Chestnut Street. This is based on rounding the measured 85th Percentile speed (41 MPH) to the nearest 5 mph increment and taking an additional 5 mph reduction to account for the pedestrian and bicycle activity from the nearby businesses and the Contra Costa Canal Trail per CVC 22358.6(b).

Signature
Oakland Avenue - Farm Bureau RoadLimits:

Revised Speed Limit Not Applicable
Aaron Elias T.E., Transportation Program Manager II
Statewide Collision Rate 0.95 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 26,131
D. CONDITIONS NOT READILY APPARENT

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: East - West
Not Applicable
Approved and Authorized for release by City of Concord Transportation Division:

Summary
Engineering and Traffic Survey (E&TS)
City of Concord
Aaron Elias T.E., Transportation Program Manager II
Clayton Road between Farm Bureau Road and Ygnacio Valley Road is a four to six-lane arterial with sidewalk, transit stops and numerous residential/commercial driveways on both sides of the street.

Abutting land uses include single-family residential, churches, apartments, gas station, schools, shopping centers, and funeral chapel. Being a truck route, a fairly large number of heavy vehicles routinely travel on Clayton Road.

Roadway Geometrics and
Intersections
The roadway is generally straight with intersections of major roadways being controlled by traffic signals.

Other intersections are side-street side controlled with side street traffic yielding to Clayton.

Speed Limit Determination
Based on the factors listed above and in compliance with the CVC, the existing speed limit will be maintained on Clayton Road between Farm Bureau Road and Ygnacio Valley Road. This recommendation is based on rounding the 85th percentile speed (39 MPH) to the nearest 5 mph increment per CVC 22358.6(a)
General Conditions
Speed Limit Change?
Existing Posted Speed Limit
No
Signature
Revised Speed Limit Not Applicable
40 MPH
Statewide Collision Rate 0.95 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 35,414
D. CONDITIONS NOT READILY APPARENT
15,206
Lane Configuration Two (2) to Three (3) Lanes in Each Direction with a Raised Median Street Classification Arterial
Length of Segment (ft.)
Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 149
Collision Rate (ACC/MVM) 1.00
B. COLLISION HISTORY
A. PREVAILING SPEED DATA
Location of Survey
85th Percentile
10 mph Pace
Percent in Pace
City of Concord

39.0 29-38

73.5%
40 MPH Revised Speed LimitExisting Posted Speed Limit
Clayton Road Quality Counts (QC)
Aaron Elias, City of Concord
4/2/2025Farm Bureau Road - Ygnacio Valley RoadLimits:

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: North - South
Not Applicable
Approved and Authorized for release by City of Concord Transportation Division:

Summary
Engineering and Traffic Survey (E&TS)
City of Concord
Aaron Elias T.E., Transportation Program Manager II
Commerce Avenue between Concord Avenue and the South End is a two-lane collector street with sidewalk and commercial driveways on both sides of the street. Abutting land uses include retail, wholesale, commercial stores, auto parts stores, offices, and the De La Salle Academy which generates student pedestrian activity.

Roadway Geometrics and
Intersections
Traffic signals control traffic at Concord Avenue and the remaining intersections operate with side street stop control.

Speed Limit Determination
Based on the factors listed above and in compliance with the CVC, the existing speed limit will be maintained on Commerce Avenue between Concord Avenue and the South End. This recommendation is based on rounding the 85th percentile speed (36 MPH) to the nearest 5 mph increment and taking an additional 5 mph reduction to account for student activity at the De La Salle Academy per CVC 22358.6(b). Therefore, no change to the existing speed limit is recommended.

General Conditions
Speed Limit Change?
Existing Posted Speed Limit
No
Signature
Revised Speed Limit Not Applicable
30 MPH
Statewide Collision Rate 1.02 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 4,870
D. CONDITIONS NOT READILY APPARENT
1,988
Lane Configuration One (1) travel lane in each direction Street Classification Collector
Length of Segment (ft.)
Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 6
Collision Rate (ACC/MVM) 2.24
B. COLLISION HISTORY
A. PREVAILING SPEED DATA
Location of Survey
85th Percentile
10 mph Pace
Percent in Pace
City of Concord

36.0 26-35

71.0%
30 MPH Revised Speed LimitExisting Posted Speed Limit
Commerce Avenue Quality Counts (QC)
Aaron Elias, City of Concord
4/8/2025Concord Avenue - South End Limits:

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: East - West
Not Applicable
Approved and Authorized for release by City of Concord Transportation Division:

Summary
Engineering and Traffic Survey (E&TS)
City of Concord
Based on the factors listed above and in compliance with the CVC, it is appropriate to maintain the speed limit at 40 MPH on Concord Avenue between the city limit and Market Street. This is based on rounding the measured 85th Percentile speed (38 MPH) to the nearest 5 mph increment per CVC 22358.6(a).

General Conditions
Street Classification Arterial

0.95 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 36,363
Revised Speed Limit
Aaron Elias T.E., Transportation Program Manager II
9/3/2024
Speed Limit Determination
Revised Speed Limit
Speed Limit Change?
Existing Posted Speed Limit
Not Applicable
No
40 MPH
D. CONDITIONS NOT READILY APPARENT
Concord Avenue between the city limit (at the Iron Horse Trail) and Market Street/SR 242 NB On Ramp is a divided arterial street with three lanes in each direction including sidewalk on both sides and no bicycle facilities. Abutting land uses include offices, car dealerships, and small businesses, all of which generate pedestrian, bicyclist, and vehicular traffic.

Roadway Geometrics and
Intersections
Traffic signals control traffic at Market Street/SR 242 NB On Ramp, Commerce Avenue/SR 242 SB Off Ramp, Bisso Lane, Via De Mercados, and Stanwell Drive.

B. COLLISION HISTORY
Existing Posted Speed Limit
Signature
40 MPH
Length of Segment (ft.) 2,920
Lane Configuration Three (3) travel lanes in each direction w/ raised median Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 54
Collision Rate (ACC/MVM) 2.45
Statewide Collision Rate
City of Concord

38.0 26-35

61.0%
85th Percentile
10 mph Pace
Percent in Pace
A. PREVAILING SPEED DATA
Location of Survey
Limits: Aaron Elias, City of Concord
Concord Avenue Quality Counts (QC)
Market Street - City Limit

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: East - West
30 MPH
Approved and Authorized for release by City of Concord Transportation Division:

Summary
Engineering and Traffic Survey (E&TS)
City of Concord
Based on the factors listed above and in compliance with the CVC, it is appropriate to reduce the speed limit to 30 MPH on Concord Avenue between Salvio Street and Market Street. This is based on rounding the measured 85th Percentile speed (36 MPH) to the nearest 5 mph increment and taking an additional 5 mph reduction to account for the pedestrian and bicycle activity from nearby shops and restaurants in the central part of Concord per CVC 22358.6(b).

General Conditions
Street Classification Arterial

0.95 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 32,183
Revised Speed Limit
Aaron Elias T.E., Transportation Program Manager II
8/29/2024
Speed Limit Determination
Revised Speed Limit
Speed Limit Change?
Existing Posted Speed Limit
30 MPH
Yes
35 MPH
D. CONDITIONS NOT READILY APPARENT
Concord Avenue between Market Street and Salvio Street is a divided arterial street with three lanes in each direction including sidewalk on both sides and no bicycle facilities. Abutting land uses include offices, restaurants, and small business, all of which generate pedestrian, bicyclist, and vehicular traffic.

This segment is a gateway into central Concord providing access to Todos Santos Plaza and its surrounding shops and restaurants.

Roadway Geometrics and
Intersections
Traffic signals control traffic at Salvio Street, Adobe Street/Pacheco Street, Harrison Street/Bonifacio Street, and Market Street. Side streets are stop controlled at Concord Avenue.

B. COLLISION HISTORY
Existing Posted Speed Limit
Signature
35 MPH
Length of Segment (ft.) 1,871
Lane Configuration Three (3) travel lanes in each direction w/ raised median Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 70
Collision Rate (ACC/MVM) 5.61
Statewide Collision Rate
City of Concord

36.0 25-34

69.5%
85th Percentile
10 mph Pace
Percent in Pace
A. PREVAILING SPEED DATA
Location of Survey
Limits: Aaron Elias, City of Concord
Concord Avenue Quality Counts (QC)
Market Street - Salvio Street

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: West
Not Applicable
Approved and Authorized for release by City of Concord Transportation Division:

Summary
Engineering and Traffic Survey (E&TS)
City of Concord
Based on the factors listed above and in compliance with the CVC, it is appropriate to maintain the speed limit at 35 MPH on Concord Avenue between Galindo Street and Clayton Road. This is based on rounding the measured 85th Percentile speed (37 MPH) to the nearest 5 mph increment per CVC 22358.6(a).

General Conditions
Street Classification Arterial

1.02 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 9,193
Revised Speed Limit
Aaron Elias T.E., Transportation Program Manager II
5/23/2024
Speed Limit Determination
Revised Speed Limit
Speed Limit Change?
Existing Posted Speed Limit
Not Applicable
No
35 MPH
D. CONDITIONS NOT READILY APPARENT
Concord Boulevard between Galindo Street and Clayton Road is a one-way arterial street with three westbound travel lanes. The street has sidewalks and a one-way bike lane on the north side along the entire segment. There is an apartment complex and office complex on the north side and open space on the south side. Abutting land uses include offices, multi-family residential, and small businesses, all of which generate pedestrian, bicyclist, and vehicular traffic.

Roadway Geometrics and
Intersections Traffic signals control traffic at Galindo Street and side streets are stop controlled at Concord Boulevard.

B. COLLISION HISTORY
Existing Posted Speed Limit
Signature
35 MPH
Length of Segment (ft.) 1,145
Lane Configuration Three (3) travel lanes in one direction Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 6
Collision Rate (ACC/MVM) 2.75
Statewide Collision Rate
City of Concord

37.0 27-36

81.2%
85th Percentile
10 mph Pace
Percent in Pace
A. PREVAILING SPEED DATA
Location of Survey
Limits: Aaron Elias, City of Concord
Concord Boulevard Quality Counts (QC)
Clayton Road - Galindo Street

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: West
Not Applicable
Approved and Authorized for release by City of Concord Transportation Division:

Summary
Engineering and Traffic Survey (E&TS)
City of Concord
Based on the factors listed above and in compliance with the CVC, it is appropriate to maintain the speed limit at 30 MPH on Concord Avenue between Galindo Street and Port Chicago Highway. This is based on rounding the measured 85th Percentile speed (31 MPH) to the nearest 5 mph increment per CVC 22358.6(a).

General Conditions
Street Classification Arterial

1.02 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 13,287
Revised Speed Limit
Aaron Elias T.E., Transportation Program Manager II
8/15/2024
Speed Limit Determination
Revised Speed Limit
Speed Limit Change?
Existing Posted Speed Limit
Not Applicable
No
30 MPH
D. CONDITIONS NOT READILY APPARENT
Concord Boulevard between Galindo Street and Port Chicago Highway is an arterial street with two-way vehicular movement between Port Chicago Highway and East Street and one-way westbound vehicular movement between East Street and Galindo Street. The street has sidewalk on both sides and provides access to downtown Concord through a number of side streets. The segment also features a one-way bike lane on the north side between Galindo Street and Grant Street. There are two travel lanes in each direction between Port Chicago Highway and East Street. The number of travel lanes varies from three to four between East Street and Galindo Street. Abutting land uses include shops, restaurants, and offices, all of which generate pedestrian, bicyclist, and vehicular traffic.

Roadway Geometrics and
Intersections
Traffic signals control traffic at Port Chicago Highway, East Street, Colfax Street, Grant Street, Mount Diablo Street, and Galindo Street.

B. COLLISION HISTORY
Existing Posted Speed Limit
Signature
30 MPH
Length of Segment (ft.) 1,756
Lane Configuration Three (3) to four (4) travel lanes in one direction; Two (2) travel lanes in each direction Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 39
Collision Rate (ACC/MVM) 8.06
Statewide Collision Rate
City of Concord

31.0 22-31

85.0%
85th Percentile
10 mph Pace
Percent in Pace
A. PREVAILING SPEED DATA
Location of Survey
Limits: Aaron Elias, City of Concord
Concord Boulevard Quality Counts (QC)
Galindo Street - Port Chicago Highway

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: East - West
Not Applicable
Approved and Authorized for release by City of Concord Transportation Division:

Summary
Engineering and Traffic Survey (E&TS)
City of Concord
Aaron Elias T.E., Transportation Program Manager II
Concord Boulevard between Port Chicago Highway and Landana Drive is a two-lane arterial with sidewalk that is generally on both sides of the road but there are sidewalk gaps on both sides of the street. Abutting land uses include single-family residential, Hindu Temple, churches, and other small businesses operating out of converted houses.

Roadway Geometrics and
Intersections
Traffic signals control traffic at Port Chicago Highway, Parkside Drive, 6th Street, Farm Bureau Road, Clayton Way, and Landana Drive. There are also striped, uncontrolled crosswalks across Concord Boulevard at 2nd Street and the Iron Horse Trail Crossing.

Speed Limit Determination
Based on the factors listed above, it is appropriate to maintain the speed limit at 35 MPH. This is based on rounding the measured 85th Percentile speed (36 MPH) to the nearest 5 mph increment and taking an additional 5 mph reduction (per CVC 22358.6(b)) to account for the pedestrian and bicycle activity that occurs at the midblock crosswalks, especially the Iron Horse Trail crossing.

General Conditions
Speed Limit Change?
Existing Posted Speed Limit
No
Signature
Revised Speed Limit Not Applicable
35 MPH
Statewide Collision Rate 1.16 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 16,283
D. CONDITIONS NOT READILY APPARENT
10,032
Lane Configuration One (1) travel lane in each direction Street Classification Arterial
Length of Segment (ft.)
Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 59
Collision Rate (ACC/MVM) 1.31
B. COLLISION HISTORY
A. PREVAILING SPEED DATA
Location of Survey
85th Percentile
10 mph Pace
Percent in Pace
35 MPH Revised Speed Limit
City of Concord

41.0 33-42

86.5%
Existing Posted Speed Limit
Concord Boulevard Quality Counts (QC)
Aaron Elias, City of Concord
3/19/2025Port Chicago Highway - Landana DriveLimits:

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: East - West
Not Applicable
Approved and Authorized for release by City of Concord Transportation Division:

Aaron Elias T.E., Transportation Program Manager II
Signature
Roadway Geometrics and
Intersections
The roadway alignment follows a moderate horizontal curve near Glazier Drive. Traffic signals control traffic at Landana Drive, West Street, Mendocino Drive, Denkinger Road, Thornwood Drive, Bailey Road, and Ayers Road.

Speed Limit Determination
Based on the factors described above, it is appropriate to maintain a speed limit of 35 MPH on Concord Boulevard between Landana Drive and Ayers Road. This recommendation is based on a 5 MPH reduction to the 85th percentile speed (45 MPH) per CVC 22358.6(b) and an additional 5 MPH speed reduction per CVC 22358.7(a)(2) due to high concentrations of student pedestrians and bicyclists that occur due to Concord High School, El Dorado Middle School, and the Tabernacle School. Therefore, no change to the existing speed limit is recommended.

Revised Speed Limit
Speed Limit Change?
Existing Posted Speed Limit
Not Applicable
No
35 MPH
Street Classification Arterial
D. CONDITIONS NOT READILY APPARENT
Concord Blvd between Landana Dr and Ayers Rd is a four-lane arterial street divided by a two-way left turn lane with sidewalks and bicycle facilities. Abutting land uses include single- and multi-family residential, Concord Bible Church, Concord High School, The Tabernacle School, and El Dorado Middle School. The crosswalk on Concord Blvd at Ayers Rd serves as a continuation of the school route to Ayers Elementary. School regulatory signs (25 MPH When Children Are Present) are posted as appropriate on Concord Blvd.

General Conditions
Lane Configuration Two (2) travel lanes in each direction Total Collisions 36
Collision Rate (ACC/MVM) 0.68
Statewide Collision Rate 1.16 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic
Percent in Pace
18,397
Length of Segment (ft.) 10,349
Existing Posted Speed Limit
B. COLLISION HISTORY
Date Range Covered 07/01/2020 to 06/30/2023
35 MPH Revised Speed Limit

76.5%
Aaron Elias, City of Concord
3/19/2025
85th Percentile
10 mph Pace
City of Concord

45.0 36-45
A. PREVAILING SPEED DATA
Location of Survey
Landana Drive - Ayers RoadLimits:

Concord Boulevard Quality Counts (QC)
Summary
Engineering and Traffic Survey (E&TS)
City of Concord

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: East - West
Not Applicable
Approved and Authorized for release by City of Concord Transportation Division:

Summary
Engineering and Traffic Survey (E&TS)
City of Concord
Aaron Elias T.E., Transportation Program Manager II
Concord Boulevard between Ayers Road and Kirker Pass Road is a two-lane arterial with limited sidewalks, transit stops and residential driveways on both sides of the street. Abutting land uses are primarily single- and multi-family residential, churches, self-storage facilities, the Hope Academy for Dyslexics, and small businesses occupying former residential units.

Roadway Geometrics and
Intersections Traffic signals control traffic at Ayers Road and at Kirker Pass Road.

Speed Limit Determination
Based on the factors described above, it is appropriate to maintain a speed limit of 35 MPH on Concord Boulevard between Ayers Road and Kirker Pass Road. This recommendation is made based on a 5 MPH reduction per CVC 22358.6(b) and an additional 5 MPH speed reduction per CVC 22358.7(a)(2) due to high concentrations of child pedestrians and bicyclists that occur due to the Hope Academy located at 5353 Concord Boulevard. Therefore, no change in existing speed limit is recommended.

General Conditions
Speed Limit Change?
Existing Posted Speed Limit
No
Signature
Revised Speed Limit Not Applicable
35 MPH
Statewide Collision Rate 1.02 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 10,410
D. CONDITIONS NOT READILY APPARENT
4,450
Lane Configuration One (1) travel lane in each direction Street Classification Arterial
Length of Segment (ft.)
Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 13
Collision Rate (ACC/MVM) 1.01
B. COLLISION HISTORY
A. PREVAILING SPEED DATA
Location of Survey
85th Percentile
10 mph Pace
Percent in Pace
35 MPH Revised Speed Limit
City of Concord

43.0 34-43

79.5%
Existing Posted Speed Limit
Concord Boulevard Quality Counts (QC)
Aaron Elias, City of Concord
3/19/2025Ayers Road - Kirker Pass Road Limits:

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: North - South
Not Applicable
Approved and Authorized for release by City of Concord Transportation Division:

Summary
Engineering and Traffic Survey (E&TS)
City of Concord
Aaron Elias T.E., Transportation Program Manager II
Concord Blvd between Kirker Pass Road and Camino Estrada/East City Limits is a four-lane arterial with sidewalk and residential driveways on both sides of the street. Abutting land uses are primarily single- family residential, apartments, a church, Kirkwood Park, Westwood Park, and a pre-school. The posted speed limit on Concord Blvd/Oakhurst Drive east of Camino Estrada/East City Limits (within the City of Clayton) is 35 MPH.

Roadway Geometrics and
Intersections
The alignment of Concord Boulevard along this segment follows horizontal curves. A traffic signal controls traffic at Kirker Pass Road while Cam Estrada is all-way stop controlled.

Speed Limit Determination
Based on the factors listed above, it is appropriate to maintain the speed limit at 35 MPH on Concord Boulevard between Kirker Pass Road and Camino Estrada/East City Limits. This recommendation is based on rounding the measured 85th Percentile speed (41 MPH) to the nearest 5 mph increment and taking an additional 5 mph reduction (per CVC 22358.6(b)) to account for the residential nature of the area and the adjacent parks on both sides of Concord Boulevard which generate pedestrian and bicycle crossing movements. Therefore, no change to the existing speed limit is recommended.

General Conditions
Speed Limit Change?
Existing Posted Speed Limit
No
Signature
Revised Speed Limit Not Applicable
35 MPH
Statewide Collision Rate 0.95 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 9,820
D. CONDITIONS NOT READILY APPARENT
2,893
Lane Configuration Two (2) travel lanes in each direction with Raised Median Street Classification Arterial
Length of Segment (ft.)
Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 6
Collision Rate (ACC/MVM) 0.76
B. COLLISION HISTORY
Location of Survey
85th Percentile
10 mph Pace
Percent in Pace
Existing Posted Speed Limit 35 MPH Revised Speed Limit
City of Concord

41.0 33-42

84.5%
A. PREVAILING SPEED DATA
Concord Boulevard Quality Counts (QC)
Kirker Pass Road - Camino Estrada/East
City Limits
Aaron Elias, City of Concord
3/19/2025Limits:

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: East - West
30 MPH
Approved and Authorized for release by City of Concord Transportation Division:

Summary
Engineering and Traffic Survey (E&TS)
City of Concord
Based on the factors listed above and in compliance with the CVC, the speed limit will be lowered to 30 mph on Cowell Road between Galindo Street/Monument Boulevard and Babel Lane. This recommendation is made based on a 5 MPH reduction per CVC 22358.6(b) and an additional 5 MPH speed reduction per CVC 22358.7(a)(2) due to high concentrations of pedestrians and bicyclists that occur at multiple locations along the segment such as Kruger Fields, the Contra Costa Canal Trail Crossing, and Concord Community Park.

General Conditions
Street Classification Arterial

1.02 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 15,687
Revised Speed Limit
Aaron Elias T.E., Transportation Program Manager II
8/27/2024
Speed Limit Determination
Revised Speed Limit
Speed Limit Change?
Existing Posted Speed Limit
30 MPH
Yes
35 MPH
D. CONDITIONS NOT READILY APPARENT
Cowell Road between Monument Boulevard/Galindo Street and Babel Lane is an arterial street with sidewalk along some segments of the roadway. There are two travel lanes in each direction between Galindo Street/Monument Boulevard and Mesa Street, and one travel lane in each direction between Mesa Street and Babel Lane. The segment is considered a bike route between Almendra Court and Babel Lane. Abutting land uses include single-family residential, Loma Vista Adult Center, Krueger Fields, and Concord Community Park, all of which generate pedestrian, bicyclist, and vehicular traffic.

Roadway Geometrics and
Intersections
Traffic signals control traffic at Monument Boulevard/Galindo Street, San Miguel Road/Mesa Street, Coventry Road, and Babel Lane.

B. COLLISION HISTORY
Existing Posted Speed Limit
Signature
35 MPH
Length of Segment (ft.) 7,339
Lane Configuration One (1) to two (2) travel lanes in each direction Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 46
Collision Rate (ACC/MVM) 1.93
Statewide Collision Rate
City of Concord

40.0 31-40

77.5%
85th Percentile
10 mph Pace
Percent in Pace
A. PREVAILING SPEED DATA
Location of Survey
Limits: Aaron Elias, City of Concord
Cowell Road Quality Counts (QC)
Galindo Street/Monument Boulevard - Babel
Lane

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: East - West
Not Applicable
Approved and Authorized for release by City of Concord Transportation Division:

Summary
Engineering and Traffic Survey (E&TS)
City of Concord
Based on the factors listed above and in compliance with the CVC, it is appropriate to maintain the speed limit at 35 mph on Cowell Road between Babel Lane and Treat Boulevard. This is based on the measured 85th Percentile speed (39 MPH) and rounding down to the lower 5 mph increment per CVC 22358.6(c).

General Conditions
Street Classification Arterial

1.02 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 17,161
Revised Speed Limit
Aaron Elias T.E., Transportation Program Manager II
8/13/2024
Speed Limit Determination
Revised Speed Limit
Speed Limit Change?
Existing Posted Speed Limit
Not Applicable
No
35 MPH
D. CONDITIONS NOT READILY APPARENT
Cowell Road between Babel Lane and Treat Boulevard is an arterial street with one travel lane in each direction. The street has sidewalk along some segments of the roadway and is striped with a two-way left turn lane between Shakespeare Drive and Treat Boulevard. Abutting land uses include primarily residential dwellings, which generate pedestrian, bicyclist, and vehicular traffic.

Roadway Geometrics and
Intersections Traffic signals control traffic at Babel Lane and Treat Boulevard.

B. COLLISION HISTORY
Existing Posted Speed Limit
Signature
35 MPH
Length of Segment (ft.) 2,936
Lane Configuration One (1) travel lane in each direction Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 23
Collision Rate (ACC/MVM) 2.20
Statewide Collision Rate
City of Concord

39.0 28.5-37.5

70.5%
85th Percentile
10 mph Pace
Percent in Pace
A. PREVAILING SPEED DATA
Location of Survey
Limits: Aaron Elias, City of Concord
Cowell Road Quality Counts (QC)
Babel Lane - Treat Boulevard

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: East - West
Not Applicable
Approved and Authorized for release by City of Concord Transportation Division:

Summary
Engineering and Traffic Survey (E&TS)
City of Concord
Based on the factors listed above and in compliance with the CVC, it is appropriate to maintain the speed limit at 35 MPH on Cowell Road between Treat Boulevard and Ygnacio Valley Road. This is based on rounding the measured 85th Percentile speed (41 MPH) to the nearest 5 mph increment and taking an additional 5 mph reduction to account for the pedestrian and bicycle activity from the nearby school and California Riding Trail access point per CVC 22358.6(b).

General Conditions
Street Classification Arterial

0.95 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 18,553
Revised Speed Limit
Aaron Elias T.E., Transportation Program Manager II
6/4/2024
Speed Limit Determination
Revised Speed Limit
Speed Limit Change?
Existing Posted Speed Limit
Not Applicable
No
35 MPH
D. CONDITIONS NOT READILY APPARENT
Cowell Road between Treat Boulevard and Ygnacio Valley Road is an arterial street with two travel lanes in each direction with medians at some locations. There are some sidewalks and numerous residential and commercial driveways on both sides. A portion of the segment is undivided. Abutting land use is primarily residential, with some commercial businesses and a school (Wood Rose Academy), all of which generate pedestrian, bicyclist, and vehicular traffic. Access is also provided from Cowell Road to the California Riding and Hiking Trail.

Roadway Geometrics and
Intersections
The alignment of Cowell Road has vertical and horizontal curves. Traffic signals control traffic at Treat Boulevard, at North Larwin Avenue and at Ygnacio Valley Road.

B. COLLISION HISTORY
Existing Posted Speed Limit
Signature
35 MPH
Length of Segment (ft.) 4,114
Lane Configuration Two (2) travel lanes in each direction Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 17
Collision Rate (ACC/MVM) 1.07
Statewide Collision Rate
City of Concord

41.0 32-41

76.5%
85th Percentile
10 mph Pace
Percent in Pace
A. PREVAILING SPEED DATA
Location of Survey
Limits: Aaron Elias, City of Concord
Cowell Road Quality Counts (QC)
Treat Boulevard - Ygnacio Valley Road

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: East - West
45 MPH
Approved and Authorized for release by City of Concord Transportation Division:

Aaron Elias T.E., Transportation Program Manager II
Signature
Revised Speed Limit 45 MPH
Speed Limit Change?
Existing Posted Speed Limit
Yes
35 MPH
Crystyl Ranch Drive between Ygnacio Valley Road and Hiddencrest Court is a local roadway with one travel lane in each direction. There are no sidewalk or bicycle facilities, and the roadway is undivided.

There are no abutting land uses except two houses near Hiddencrest Court and a fire station located close to Ygnacio Valley Road.

Roadway Geometrics and
Intersections
Crystyl Ranch Drive has moderate horizontal curves and descends approximately 275 feet between Hiddencrest Court and Ygnacio Valley Road. There is a traffic signal at Ygnacio Valley Road and all-way stop control at Hiddencrest Court.

Speed Limit Determination
Based on the factors listed above and in compliance with the CVC, it is appropriate to increase the speed limit on Crystyl Ranch Drive from 35 MPH to 45 MPH on Crystyl Ranch Drive between Ygnacio Valley Road and Hiddencrest Court. This recommendation is based on rounding the measured 85th Percentile speed (49 MPH) down to the nearest 5 mph increment per CVC 22358.6(c).

General Conditions
D. CONDITIONS NOT READILY APPARENT
Statewide Collision Rate 1.02 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 1,843
Length of Segment (ft.) 5,228
Lane Configuration One (1) travel lanes in each direction Street Classification Local
Collision Rate (ACC/MVM) 0.50
Percent in Pace 68.0%
Existing Posted Speed Limit 35 MPH Revised Speed Limit
B. COLLISION HISTORY
Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 1
10 mph Pace 39-48
Aaron Elias, City of Concord
4/10/2025Ygnacio Valley Road - Hiddencrest CourtLimits:

A. PREVAILING SPEED DATA
Location of Survey City of Concord
85th Percentile 49.0
Crystyl Ranch Drive Quality Counts (QC)
Summary
Engineering and Traffic Survey (E&TS)
City of Concord

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: East - West
35 MPH
Approved and Authorized for release by City of Concord Transportation Division:

Summary
Engineering and Traffic Survey (E&TS)
City of Concord
Based on the factors listed above and in compliance with the CVC, the speed limit will be lowered to 35 mph on David Avenue between Oak Grove Road and Bancroft Road. This recommendation is made based on a 5 MPH reduction per CVC 22358.6(c) and an additional 5 MPH speed reduction per CVC 22358.7(a)(2) due to high concentrations of pedestrians and bicyclists that occur between the residential neighborhoods and Oak Grove Middle School via the overcrossing across the BART tracks.

General Conditions
Street Classification Collector

1.02 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 5,105
Revised Speed Limit
Aaron Elias T.E., Transportation Program Manager II
8/13/2024
Speed Limit Determination
Revised Speed Limit
Speed Limit Change?
Existing Posted Speed Limit
35 MPH
Yes
40 MPH
D. CONDITIONS NOT READILY APPARENT
David Avenue between Oak Grove Road and Bancroft Road is a collector street with one travel lane in each direction. The street has numerous residential driveways directly fronting the roadway and sidewalk on the north side. The entire segment is considered a bike route. There is an overcrossing on David Avenue near Helix Drive which provides access and serves as a continuation of the school route to Oak Grove Middle School. Abutting land uses are residential dwellings which generate pedestrian, bicyclist, and vehicular traffic.

Roadway Geometrics and
Intersections
Traffic signals control traffic at Oak Grove Road and at Bancroft Road. Side streets are stop controlled at David Avenue.

B. COLLISION HISTORY
Existing Posted Speed Limit
Signature
40 MPH
Length of Segment (ft.) 6,072
Lane Configuration One (1) travel lane in each direction Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 5
Collision Rate (ACC/MVM) 0.78
Statewide Collision Rate
City of Concord

44.0 34-43

78.0%
85th Percentile
10 mph Pace
Percent in Pace
A. PREVAILING SPEED DATA
Location of Survey
Limits: Aaron Elias, City of Concord
David Avenue Quality Counts (QC)
Oak Grove Road - Bancroft Road

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: North - South
Not Applicable
Approved and Authorized for release by City of Concord Transportation Division:

Summary
Engineering and Traffic Survey (E&TS)
City of Concord
Based on the factors listed above and in compliance with the CVC, the speed limit will be maintained at 30 mph on Denkinger Road between Clayton Road and Concord Boulevard. This recommendation is based on a 5 mph reduction per CVC 22358.6(c) and an additional 5 mph speed reduction per CVC 22358.7(a)(2) due to high concentrations of pedestrians and bicyclists that occur due to the Tabernacle school.

General Conditions
Street Classification Arterial

1.02 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 7,233
Revised Speed Limit
Aaron Elias T.E., Transportation Program Manager II
5/23/2024
Speed Limit Determination
Revised Speed Limit
Speed Limit Change?
Existing Posted Speed Limit
Not Applicable
No
30 MPH
D. CONDITIONS NOT READILY APPARENT
Denkinger Road between Clayton Road and Concord Boulevard is an arterial street with one travel lane in each direction. The street has a sidewalk on the east side while the west side has a drainage ditch with only a few driveways crossing it. Abutting land uses include primarily single family residential and Tabernacle Baptist School, all of which generate pedestrian, bicyclist, and vehicular traffic.

Roadway Geometrics and
Intersections
Traffic signals control traffic at Clayton Road and Concord Boulevard while an all-way stop controls traffic at Wilson Lane.

B. COLLISION HISTORY
Existing Posted Speed Limit
Signature
30 MPH
Length of Segment (ft.) 4,616
Lane Configuration One (1) travel lane in each direction Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 12
Collision Rate (ACC/MVM) 1.73
Statewide Collision Rate
City of Concord

39.0 30-39

79.1%
85th Percentile
10 mph Pace
Percent in Pace
A. PREVAILING SPEED DATA
Location of Survey
Limits: Aaron Elias, City of Concord
Denkinger Road Quality Counts (QC)
Clayton Road - Concord Boulevard

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: East - West
Not Applicable
Approved and Authorized for release by City of Concord Transportation Division:

Summary
Engineering and Traffic Survey (E&TS)
City of Concord
Aaron Elias T.E., Transportation Program Manager II
Detroit Avenue between Clayton Road and Monument Boulevard is a two-lane undivided arterial street with numerous residential driveways on both sides. The street also has sidewalks, bike lanes, and bus stops on both sides of the street. Abutting land uses are primarily single- and multi-family residential but there are some commercial businesses closer to Monument Boulevard. Meadow Homes Elementary School and Meadow Homes Elementary School are also both located on the street.

Roadway Geometrics and
Intersections
Traffic signals control traffic at Clayton Road, Oakmead Drive, and Monument Boulevard. All-way stops control traffic at Laguna Street, Lynn Avenue/Sunshine Drive, and Walters Way. There is also a slight horizontal curve between Oakmead and Laguna.

Speed Limit Determination
Based on the factors listed above and in compliance with the CVC, it is appropriate to maintain the existing speed limit on Detroit Avenue between Clayton Road and Monument Boulevard. This recommendation is based on rounding the measured 85th Percentile speed (30 MPH) down to the nearest 5 mph increment per CVC 22358.6(c) to account for pedestrian and bicycle activity near Meadow Homes Elementary School and the adjacent park.

General Conditions
Speed Limit Change?
Existing Posted Speed Limit
No
Signature
Revised Speed Limit Not Applicable
25 MPH
Statewide Collision Rate 1.02 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 11,315
D. CONDITIONS NOT READILY APPARENT
4,772
Lane Configuration One (1) travel lane in each direction Street Classification Arterial
Length of Segment (ft.)
Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 35
Collision Rate (ACC/MVM) 2.34
B. COLLISION HISTORY
Location of Survey
85th Percentile
10 mph Pace
Percent in Pace
Existing Posted Speed Limit
City of Concord

30.0 21-30

77.5%
25 MPH Revised Speed Limit
A. PREVAILING SPEED DATA
Detroit Avenue Quality Counts (QC)
Clayton Road - Monument Boulevard Aaron Elias, City of Concord 4/2/2025Limits:

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: North - South
Not Applicable
Approved and Authorized for release by City of Concord Transportation Division:

Summary
Engineering and Traffic Survey (E&TS)
City of Concord
Aaron Elias T.E., Transportation Program Manager II
Detroit Avenue between Monument Boulevard and Whitman Road is a four-lane collector between Monument Boulevard and Cloverdale Avenue and a single lane in each direction between Cloverdale Avenue and Whitman Road. On-street parking is generally allowed on both sides of the road. Abutting land uses include auto repair shops, commercial stores, Costco and Gas Station, and other light industrial/office uses. Three is also a midblock crosswalk near Costco that connects Costco employee parking with the main Costco building across Detroit Avenue.

Roadway Geometrics and
Intersections Traffic signals control traffic at Monument Boulevard, Costco Driveway, and Whitman Road.

Speed Limit Determination
Based on the factors listed above and in compliance with the CVC, it is appropriate to maintain the existing speed limit on Detroit Avenue between Monument Boulevard and Whitman Road. This recommendation is based on rounding the measured 85th Percentile speed (38 MPH) down to the nearest 5 mph increment per CVC 22358.6(c) to account for pedestrian activity between Costco and its employee parking lot which are located on opposite sides of Detroit Avenue.

General Conditions
Speed Limit Change?
Existing Posted Speed Limit
No
Signature
Revised Speed Limit Not Applicable
35 MPH
Statewide Collision Rate 1.02 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 9,821
D. CONDITIONS NOT READILY APPARENT
3,260
Lane Configuration Two (2) to one (1) travel lanes in each direction Street Classification Collector
Length of Segment (ft.)
Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 18
Collision Rate (ACC/MVM) 2.03
B. COLLISION HISTORY
Location of Survey
85th Percentile
10 mph Pace
Percent in Pace
Existing Posted Speed Limit
City of Concord

38.0 27-36

63.0%
35 MPH Revised Speed Limit
A. PREVAILING SPEED DATA
Detroit Avenue Quality Counts (QC)
Aaron Elias, City of Concord
4/29/2025Monument Boulevard - Whitman RoadLimits:

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: North - South
Not Applicable
Approved and Authorized for release by City of Concord Transportation Division:

Summary
Engineering and Traffic Survey (E&TS)
City of Concord
Aaron Elias T.E., Transportation Program Manager II
Diamond Boulevard between Concord Avenue and Willow Pass Road is a six-lane arterial between Concord Avenue and Willow Way and a four-lane arterial between Willow Way and Willow Pass Road.

Abutting land uses include retail shops, a strip mall, restaurants, a hotel, and car dealerships.

Roadway Geometrics and
Intersections
Traffic signals control traffic at Concord Avenue, Burnett Avenue, Galaxy Way, Veranda Driveway, Willow Way, Willows Driveway, and Willow Pass Road.

Speed Limit Determination
Based on the factors listed above and in compliance with the CVC, it is appropriate to maintain the speed limit at 35 MPH on Diamond Boulevard between Concord Avenue and Willow Pass Road. This is based on rounding the measured 85th Percentile speed (35 MPH) to the nearest 5 mph increment per CVC 22358.6(a).

General Conditions
Speed Limit Change?
Existing Posted Speed Limit
No
Signature
Revised Speed Limit Not Applicable
35 MPH
Statewide Collision Rate 0.95 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 13,708
D. CONDITIONS NOT READILY APPARENT
4,325
Lane Configuration Two (2) to three (3) travel lanes in each direction Street Classification Arterial
Length of Segment (ft.)
Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 50
Collision Rate (ACC/MVM) 3.05
B. COLLISION HISTORY
A. PREVAILING SPEED DATA
Location of Survey
85th Percentile
10 mph Pace
Percent in Pace
City of Concord

35.0 25-34

70.0%
35 MPH Revised Speed LimitExisting Posted Speed Limit
Diamond Boulevard Quality Counts (QC)
Aaron Elias, City of Concord
5/1/2025Concord Avenue - Willow Pass RoadLimits:

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: North - South
Not Applicable
Approved and Authorized for release by City of Concord Transportation Division:

Summary
Engineering and Traffic Survey (E&TS)
City of Concord
Aaron Elias T.E., Transportation Program Manager II
East Street between High School Avenue and Pacheco Street is a four-lane arterial with a two-way left turn lane. The street has sidewalks, transit stops, and commercial driveways on both sides of the street.

Abutting land uses include a hospital (John Muir Medical Center), medical offices, pharmaceutical store and single-family residential units. The street also serves as a main access route to Mount Diablo High School and Queen of All Saints school located one block away off Grant Street.

Roadway Geometrics and
Intersections
The alignment of East Street along this segment follows a horizontal curve. Traffic signals control traffic at High School Avenue, Bacon Street, Almond Avenue, Bonifacio Street, and Pacheco Street.

Speed Limit Determination
Based on the factors listed above and in compliance with the CVC, it is appropriate to maintain the speed limit on East Street between High School Avenue and Pacheco Street. This recommendation is based on rounding the measured 85th Percentile speed (33 MPH) down to the nearest 5 mph increment per CVC 22358.6(c). Therefore, no change to the existing speed limit is recommended.

General Conditions
Speed Limit Change?
Existing Posted Speed Limit
No
Signature
Revised Speed Limit Not Applicable
30 MPH
Statewide Collision Rate 1.16 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 13,415
D. CONDITIONS NOT READILY APPARENT
1,854
Lane Configuration Two (2) travel lanes in each direction with two-way left turn lane Street Classification Arterial
Length of Segment (ft.)
Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 12
Collision Rate (ACC/MVM) 1.74
B. COLLISION HISTORY
A. PREVAILING SPEED DATA
Location of Survey
85th Percentile
10 mph Pace
Percent in Pace
City of Concord

33.0 24-33

77.3%
30 MPH Revised Speed LimitExisting Posted Speed Limit
East Street Quality Counts (QC)
Aaron Elias, City of Concord
4/10/2025High School Avenue - Pacheco StreetLimits:

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: North - South
Not Applicable
Approved and Authorized for release by City of Concord Transportation Division:

Summary
Engineering and Traffic Survey (E&TS)
City of Concord
Aaron Elias T.E., Transportation Program Manager II
East Street between Pacheco Street and Clayton Road has one lane in each direction between Pacheco Street and Concord Boulevard and four lanes southbound only between Concord Boulevard and Clayton Road. Abutting land uses include medical offices, a post office, grocery store, single family residential, and various small businesses near downtown.

Roadway Geometrics and
Intersections
Traffic signals control traffic at Pacheco Street, Salvia Street, Willow Pass Road, Concord Boulevard, Sunset Avenue, and Clayton Road.

Speed Limit Determination
Based on the factors listed above and in compliance with the CVC, it is appropriate to maintain the speed limit on East Street between Pacheco Street and Clayton Road. This recommendation is based on setting the speed limit to the nearest 5 MPH increment to the 85th percentile speed (25 MPH) per CVC 22358.6(a). Therefore, no change in existing speed limit is recommended.

General Conditions
Speed Limit Change?
Existing Posted Speed Limit
No
Signature
Revised Speed Limit Not Applicable
25 MPH
Statewide Collision Rate 1.16 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 11,806
D. CONDITIONS NOT READILY APPARENT
1,920
Lane Configuration Mix of one (1) to four (4) travel lanes in each direction Street Classification Arterial
Length of Segment (ft.)
Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 20
Collision Rate (ACC/MVM) 3.19
B. COLLISION HISTORY
A. PREVAILING SPEED DATA
Location of Survey
85th Percentile
10 mph Pace
Percent in Pace
City of Concord

25.0 15-24

80.0%
25 MPH Revised Speed LimitExisting Posted Speed Limit
East Street Quality Counts (QC)
Aaron Elias, City of Concord
4/10/2025Pacheco Street - Clayton RoadLimits:

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: North - South
Not Applicable
Approved and Authorized for release by City of Concord Transportation Division:

Summary
Engineering and Traffic Survey (E&TS)
City of Concord
Based on the factors listed above and in compliance with the CVC, it is appropriate to maintain the speed limit at 30 MPH on Farm Bureau Road between Willow Pass Road and Clayton Road. This is based on rounding the measured 85th Percentile speed (36 MPH) to the nearest 5 mph increment and taking an additional 5 mph reduction to account for the pedestrian and bicycle activity within this neighborhood and accessing Wren Avenue Elementary School per CVC 22358.6(b).

General Conditions
Street Classification Arterial

1.02 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 10,332
Revised Speed Limit
Aaron Elias T.E., Transportation Program Manager II
8/13/2024
Speed Limit Determination
Revised Speed Limit
Speed Limit Change?
Existing Posted Speed Limit
Not Applicable
No
30 MPH
D. CONDITIONS NOT READILY APPARENT
Farm Bureau Road between Willow Pass Road and Clayton Road is an arterial street with one travel lane in each direction. There are numerous roadside residential driveways and sidewalks on both sides. There are bike lanes on both sides along the entire segment. Abutting land uses include single family residential, a gas station, and a strip mall, all of which generate pedestrian, bicyclist, and vehicular traffic. The street also serves as a continuation of the school route to Wren Avenue Elementary via Wren Avenue. There is significant walking activity on Farm Bureau Road in addition to auto travel.

Roadway Geometrics and
Intersections
Flat roadway with a slight change in direction at Wren Avenue. Traffic signals control traffic at Willow Pass Road/East Olivera Road and at Concord Boulevard. All-way stops control traffic at Wren Avenue.

B. COLLISION HISTORY
Existing Posted Speed Limit
Signature
30 MPH
Length of Segment (ft.) 6,125
Lane Configuration One (1) travel lane in each direction Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 23
Collision Rate (ACC/MVM) 1.75
Statewide Collision Rate
City of Concord

36.0 27-36

81.7%
85th Percentile
10 mph Pace
Percent in Pace
A. PREVAILING SPEED DATA
Location of Survey
Limits: Aaron Elias, City of Concord
Farm Bureau Road Quality Counts (QC)
Willow Pass Road - Clayton Road

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: East - West
25 MPH
Approved and Authorized for release by City of Concord Transportation Division:

Aaron Elias, City of Concord
5/30/2024
General Conditions
15-24

65.0%
30 MPH Revised Speed Limit
B. COLLISION HISTORY
A. PREVAILING SPEED DATA
Location of Survey
85th Percentile
10 mph Pace
Percent in Pace
Existing Posted Speed Limit
Galaxy Way Quality Counts (QC)
Summary
Engineering and Traffic Survey (E&TS)
City of Concord
City of Concord

27.0 Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 2
Collision Rate (ACC/MVM) 3.03
1,372
Lane Configuration One (1) travel lane in each direction Street Classification Local
Length of Segment (ft.)
Speed Limit Change?
Existing Posted Speed Limit
Yes
30 MPH
Galaxy Way between Commerce Avenue and Via De Mercados is a local street with one travel lane in each direction including sidewalk and on-street parking on both sides. Abutting land uses include light industrial businesses and the De La Salle Academy which is a middle school generating pedestrian, bicyclist, and vehicular traffic. There is also a community youth center located on Galaxy Court which is accessed via Galaxy Way.

Roadway Geometrics and
Intersections
Galaxy Way is stop-controlled at Commerce Avenue and Via De Mercados and all-way stop controlled at Galaxy Court.

Speed Limit Determination
Based on the factors listed above and in compliance with the CVC, it is appropriate to reduce the speed limit to 25 MPH on Galaxy Way between Commerce Avenue and Via De Mercados via rounding the 85th percentile (27 MPH) to the nearest 5 MPH increment per CVC 22358.6(a).

Signature
Commerce Avenue - Via De MercadosLimits:

Revised Speed Limit 25 MPH
Aaron Elias T.E., Transportation Program Manager II
Statewide Collision Rate 1.02 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 2,317
D. CONDITIONS NOT READILY APPARENT

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: East - West
Not Applicable
Approved and Authorized for release by City of Concord Transportation Division:

Aaron Elias, City of Concord
5/30/2024
General Conditions
22-31

82.0%
30 MPH Revised Speed Limit
B. COLLISION HISTORY
A. PREVAILING SPEED DATA
Location of Survey
85th Percentile
10 mph Pace
Percent in Pace
Existing Posted Speed Limit
Galaxy Way Quality Counts (QC)
Summary
Engineering and Traffic Survey (E&TS)
City of Concord
City of Concord

31.0 Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 4
Collision Rate (ACC/MVM) 2.34
1,780
Lane Configuration Two (2) travel lanes in each direction w/ raised median Street Classification Arterial
Length of Segment (ft.)
Speed Limit Change?
Existing Posted Speed Limit
No
30 MPH
Galaxy Way between Meridian Park Boulevard and the West End of Galaxy Way is an arterial street generally with one lane in each direction divided by a raised median. The street has sidewalks along both sides of the roadway. Abutting land uses include offices, restaurants, large commercial businesses like Home Depot and small businesses.

Roadway Geometrics and
Intersections
Traffic signals control traffic at Diamond Boulevard and an all-way stop-controlled intersection at Meridian Park Boulevard.

Speed Limit Determination
Based on the factors listed above and in compliance with the CVC, it is appropriate to maintain the speed limit at 30 MPH on Galaxy Way between Meridian Park Boulevard and the West End of Galaxy Way via rounding the 85th percentile (31 MPH) to the nearest 5 MPH increment per CVC 22358.6(a). Therefore, no change in the existing speed limit is recommended.

Signature
Meridian Park Boulevard - Western
Termination of Galaxy WayLimits:

Revised Speed Limit Not Applicable
Aaron Elias T.E., Transportation Program Manager II
Statewide Collision Rate 0.95 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 4,627
D. CONDITIONS NOT READILY APPARENT

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: North - South
30 MPH
Approved and Authorized for release by City of Concord Transportation Division:

Aaron Elias, City of Concord
8/13/2024
General Conditions
27-36

78.6%
35 MPH Revised Speed Limit
B. COLLISION HISTORY
A. PREVAILING SPEED DATA
Location of Survey
85th Percentile
10 mph Pace
Percent in Pace
Existing Posted Speed Limit
Galindo Street Quality Counts (QC)
Summary
Engineering and Traffic Survey (E&TS)
City of Concord
City of Concord

36.0 Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 100
Collision Rate (ACC/MVM) 6.01
3,294
Lane Configuration Two (2) to three (3) travel lanes in each direction Street Classification Arterial
Length of Segment (ft.)
Speed Limit Change?
Existing Posted Speed Limit
Yes
35 MPH
Galindo Street between Salvio Street and Cowell Road/Monument Boulevard is an arterial street with two to three lanes in each direction including a raised median between Oak Street and Cowell Road/Monument Boulevard and no median in the remainder of the section. The street has sidewalks on both sides. Abutting land uses include offices, City of Concord's Police Headquarters, small businesses, and apartment complexes, all of which generate pedestrian, bicyclist, and vehicular traffic. Additionally, Galindo Street is near Concord BART station.

Roadway Geometrics and
Intersections
Traffic signals control traffic at Salvio Street, Willow Pass Road, Concord Boulevard, Clayton Road, Laguna Street/Oak Street, and Cowell Road/Monument Boulevard/Oakmead Drive.

Speed Limit Determination
Based on the factors listed above and in compliance with the CVC, it is appropriate to reduce the speed limit to 30 MPH on Galindo Street between Salvio Street and Cowell Road/Monument Boulevard. This is based on rounding the measured 85th Percentile speed (36 MPH) to the nearest 5 mph increment and taking an additional 5 mph reduction to account for the pedestrian and bicycle activity generated by the adjacent office buildings, shopping opportunities, and the nearby Concord BART Station per CVC 22358.6(b).

Signature
Salvio Street - Cowell Road/MonumentLimits:

Revised Speed Limit 30 MPH
Aaron Elias T.E., Transportation Program Manager II
Statewide Collision Rate 1.16 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 24,364
D. CONDITIONS NOT READILY APPARENT

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: North - South
30 MPH
Approved and Authorized for release by City of Concord Transportation Division:

Aaron Elias, City of Concord
5/28/2024
General Conditions
31-40

74.3%
35 MPH Revised Speed Limit
B. COLLISION HISTORY
A. PREVAILING SPEED DATA
Location of Survey
85th Percentile
10 mph Pace
Percent in Pace
Existing Posted Speed Limit
Grant Street Quality Counts (QC)
Summary
Engineering and Traffic Survey (E&TS)
City of Concord
City of Concord

39.0 Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 22
Collision Rate (ACC/MVM) 2.50
2,550
Lane Configuration Two (2) travel lanes in each direction Street Classification Arterial
Length of Segment (ft.)
Speed Limit Change?
Existing Posted Speed Limit
Yes
35 MPH
Grant Street between High School Avenue and Solano Way is an arterial street with two travel lanes in each direction. The street has both commercial and residential driveways with sidewalks and bike lanes on both sides. Abutting land uses include single family residential, apartment complex, and John Muir Medical Facilities, all of which generate pedestrian, bicyclist, and vehicular traffic. The street also serves as a continuation of the school route to Mount Diablo High School via Grant Street.

Roadway Geometrics and
Intersections
Traffic signals control traffic at High School Avenue, Frederick Street, NB SR 242 Off Ramp/Fairfield Avenue, and SB SR 242 On/Off Ramp. The street also follows a horizontal curve between High School Avenue and Ann Street.

Speed Limit Determination
Based on the factors listed above and in compliance with the CVC, the speed limit will be reduced to 30 mph on Grant Street between High School Avenue and Solano Way. This recommendation is based on a 5 MPH reduction per CVC 22358.6(c) and an additional 5 MPH speed reduction per CVC 22358.7(a)(2) due to high concentrations of pedestrians and bicyclists that occur due to the proximity of the John Muir Medical Center and Mount Diablo High School.

Signature
High School Avenue - Solano WayLimits:

Revised Speed Limit 30 MPH
Aaron Elias T.E., Transportation Program Manager II
Statewide Collision Rate 1.16 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 16,628
D. CONDITIONS NOT READILY APPARENT

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: North - South
Not Applicable
Approved and Authorized for release by City of Concord Transportation Division:

Summary
Engineering and Traffic Survey (E&TS)
City of Concord
Aaron Elias T.E., Transportation Program Manager II
John Glen Drive/Galaxy Way between Concord Avenue and Meridian Park Boulevard is a four-lane collector between Concord Avenue and Burnett Avenue and a two-lane collector between Burnett Avenue and Meridian Park Boulevard. Sidewalks are present on both side but are not continuous with significant sidewalk gaps, especially south of Burnett Avenue. Abutting land use includes offices, a bank, grocery store, social security administration, and Home Depot.

Roadway Geometrics and
Intersections
The alignment of John Glen Drive/Galaxy Way follows a horizontal curve along this segment. Traffic signals control traffic at Concord Avenue and Meridian Park Boulevard while an all-way stop control traffic at Burnett Avenue.

Speed Limit Determination
Based on the factors listed above, it is appropriate to maintain the existing speed limit of 30 MPH on John Glen Drive/Galaxy Way between Concord Avenue and Meridian Park Boulevard. This recommendation is based on rounding the 85th percentile speed to the nearest 5 MPH increment per CVC 22358.6(a) Therefore, no change to the existing speed limit is recommended.

General Conditions
Speed Limit Change?
Existing Posted Speed Limit
No
Signature
Revised Speed Limit Not Applicable
30 MPH
Statewide Collision Rate 1.02 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 4,509
D. CONDITIONS NOT READILY APPARENT
2,058
Lane Configuration Mix of One (1) and Two (2) travel lanes in each direction.

Street Classification Collector
Length of Segment (ft.)
Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 2
Collision Rate (ACC/MVM) 0.78
B. COLLISION HISTORY
Location of Survey
85th Percentile
10 mph Pace
Percent in Pace
Existing Posted Speed Limit 30 MPH Revised Speed Limit
City of Concord

31.0 22-31

82.5%
A. PREVAILING SPEED DATA
John Glen Drive/Galaxy Way Quality Counts (QC)
Concord Avenue - Meridian Park Boulevard Aaron Elias, City of Concord 3/19/2025Limits:

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: North - South
50 MPH
Approved and Authorized for release by City of Concord Transportation Division:

Aaron Elias, City of Concord
8/13/2024
General Conditions
43-52

52.5%
55 MPH Revised Speed Limit
B. COLLISION HISTORY
A. PREVAILING SPEED DATA
Location of Survey
85th Percentile
10 mph Pace
Percent in Pace
Existing Posted Speed Limit
Kirker Pass Road Quality Counts (QC)
Summary
Engineering and Traffic Survey (E&TS)
City of Concord
City of Concord

55.0 Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 16
Collision Rate (ACC/MVM) 0.48
4,278
Lane Configuration Two (2) travel lanes in NB direction; Two to three (2 to 3) travel lanes in SB direction; raised median Street Classification Arterial
Length of Segment (ft.)
Speed Limit Change?
Existing Posted Speed Limit
Yes
55 MPH
Kirker Pass Road between Myrtle Drive and the East City Limits is a major arterial with open space and no sidewalks on both sides and Concord Pavilion on the east side. There are two travel lanes in the northbound direction while the southbound direction varies from two to three travel lanes. Being a truck route, a fairly large number of heavy vehicles routinely travel on Kirker Pass Road. The section of this roadway is terrain in nature and serves as a major route to East County and Concord Pavilion; and thus, attracts heavy commute and event traffic. The street also serves as a continuation of the school route to Ayers Elementary School via Myrtle Drive and is listed as one of the routes of regional significance in Concord.

Roadway Geometrics and
Intersections Traffic signals control traffic at Myrtle Drive and Clearbrook Drive.

Speed Limit Determination
Based on the factors listed above and in compliance with the CVC, it is appropriate to reduce the speed limit to 50 MPH on Kirker Pass Road between Myrtle Drive and the East City Limits. This is based on taking a 5 MPH reduction to the rounded 85th percentile speed (55 MPH) to account for driver unfamiliarity in accessing Concord Pavilion and to better account for the change in land use from none to the commercial and residential land uses that begin as drivers enter Concord over Kirker Pass per CVC 22358.6(b).

Signature
Myrtle Drive - East City LimitsLimits:

Revised Speed Limit 50 MPH
Aaron Elias T.E., Transportation Program Manager II
Statewide Collision Rate 0.95 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 22,471
D. CONDITIONS NOT READILY APPARENT

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: North - South
Not Applicable
Approved and Authorized for release by City of Concord Transportation Division:

Summary
Engineering and Traffic Survey (E&TS)
City of Concord
Aaron Elias T.E., Transportation Program Manager II
Kirker Pass Road between Clayton Road and Myrtle Drive is a six-lane arterial with commercial and residential complex driveways on both sides of the street. Abutting land uses include self-storage units, churches, multifamily residential, and the Clayton Station Shopping Center. The street serves as a major route for both vehicles and trucks to east county and "Concord Pavilion", which attracts heavy commute and event traffic.

Roadway Geometrics and
Intersections Traffic signals control traffic at Clayton Road, Concord Boulevard, and Myrtle Drive.

Speed Limit Determination
Based on the factors listed above and in compliance with the CVC, it is appropriate to maintain the speed limit on Kirker Pass Road between Clayton Road and Myrtle Drive. This recommendation is based on setting the speed limit to the nearest 5 MPH increment to the 85th percentile speed (45 MPH) per CVC 22358.6(a). Therefore, no change to the existing speed limit is recommended.

General Conditions
Speed Limit Change?
Existing Posted Speed Limit
No
Signature
Revised Speed Limit Not Applicable
45 MPH
Statewide Collision Rate 0.95 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 30,049
D. CONDITIONS NOT READILY APPARENT
4,317
Lane Configuration Three (3) travel lanes in each direction with raised median Street Classification Arterial
Length of Segment (ft.)
Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 24
Collision Rate (ACC/MVM) 0.67
B. COLLISION HISTORY
A. PREVAILING SPEED DATA
Location of Survey
85th Percentile
10 mph Pace
Percent in Pace
City of Concord

45.0 36-45

56.0%
45 MPH Revised Speed LimitExisting Posted Speed Limit
Kirker Pass Road Quality Counts (QC)
Aaron Elias, City of Concord
3/27/2025Clayton Road - Myrtle DriveLimits:

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: North - South
30 MPH
Approved and Authorized for release by City of Concord Transportation Division:

Aaron Elias, City of Concord
9/3/2024
General Conditions
26-35

71.0%
35 MPH Revised Speed Limit
B. COLLISION HISTORY
A. PREVAILING SPEED DATA
Location of Survey
85th Percentile
10 mph Pace
Percent in Pace
Existing Posted Speed Limit
Laura Alice Way Quality Counts (QC)
Summary
Engineering and Traffic Survey (E&TS)
City of Concord
City of Concord

35.0 Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 1
Collision Rate (ACC/MVM) 0.62
1,201
Lane Configuration Two (2) travel lanes in each direction w/ raised median Street Classification Collector
Length of Segment (ft.)
Speed Limit Change?
Existing Posted Speed Limit
Yes
35 MPH
Laura Alice Way between Arnold Industrial Way and Nelson Avenue is a collector street with two travel lanes in each direction with raised medians along the entire segment. There are no sidewalks or bike lanes on either side. Abutting land uses include businesses and light industrial. There is also pedestrian activity crossing the street with employees of one business crossing the street to park on the other side of the street.

Roadway Geometrics and
Intersections
Traffic signals control traffic at Arnold Industrial Way and there is an all-way stop-control at Nelson Avenue.

Speed Limit Determination
Based on the factors listed above and in compliance with the CVC, it is appropriate to reduce the speed limit to 30 MPH on Laura Alice Way between Arnold Industrial Way and Nelson Avenue. This is based on taking a 5 MPH reduction to the rounded 85th percentile speed (35 MPH) to account for the pedestrian crossing behavior between a parking lot and a business which are on opposite sides of the street per CVC 22358.6(b).

Signature
Arnold Industrial Way - Nelson AvenueLimits:

Revised Speed Limit 30 MPH
Aaron Elias T.E., Transportation Program Manager II
Statewide Collision Rate 0.95 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 6,440
D. CONDITIONS NOT READILY APPARENT

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: North - South
Not Applicable
Approved and Authorized for release by City of Concord Transportation Division:

Summary
Engineering and Traffic Survey (E&TS)
City of Concord
Aaron Elias T.E., Transportation Program Manager II
Market Street between Concord Avenue/SR 242 On-Ramp and Meadow Lane is a four-lane arterial with two-way left turn lane. The street has sidewalks and commercial driveways on both sides. Abutting land uses include auto parts stores, car dealerships, restaurants and a gas station. The road is also a designated truck route. The street also provides access to "Park & Shop" (a major shopping center in Concord) and serves as a major route to destinations outside of Concord via ramps to both northbound and southbound SR 242.

Roadway Geometrics and
Intersections
Traffic signals control traffic at Concord Avenue/SR 242 On-Ramp, Fry Way/BMW Driveway, Willow Pass Road/Pine Street, and Clayton Road/Market Street.

Speed Limit Determination
Based on the factors listed above and in compliance with the CVC, it is appropriate to maintain the speed limit on Market Street between Concord Avenue/SR 242 On-Ramp and Meadow Lane. This recommendation is based on rounding the measured 85th Percentile speed (38 MPH) down to the nearest 5 mph increment per CVC 22358.6(c). Therefore, no change to the existing speed limit is recommended.

General Conditions
Speed Limit Change?
Existing Posted Speed Limit
No
Signature
Revised Speed Limit Not Applicable
35 MPH
Statewide Collision Rate 1.16 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 18,377
D. CONDITIONS NOT READILY APPARENT
4,853
Lane Configuration Two (2) travel lanes in each direction with two-way left turn Street Classification Arterial
Length of Segment (ft.)
Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 55
Collision Rate (ACC/MVM) 2.23
B. COLLISION HISTORY
Location of Survey
85th Percentile
10 mph Pace
Percent in Pace
Existing Posted Speed Limit
City of Concord

38.0 28-37

74.0%
35 MPH Revised Speed Limit
A. PREVAILING SPEED DATA
Market Street Quality Counts (QC)
Concord Avenue - Meadow Lane Aaron Elias, City of Concord 4/22/2025Limits:

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: East - West
40 MPH
Approved and Authorized for release by City of Concord Transportation Division:

Summary
Engineering and Traffic Survey (E&TS)
City of Concord
Based on the factors listed above and in compliance with the CVC, it is appropriate to reduce the speed limit to 40 MPH on Marsh Drive between Olivera Road/Solano Way and the West City Limits. This is based on a downward rounding the measured 85th Percentile speed (43 MPH) to the nearest 5 mph increment per CVC 22358.6(c).

General Conditions
Street Classification Arterial

1.02 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 6,893
Revised Speed Limit
Aaron Elias T.E., Transportation Program Manager II
5/2/2024
Speed Limit Determination
Revised Speed Limit
Speed Limit Change?
Existing Posted Speed Limit
40 MPH
Yes
45 MPH
D. CONDITIONS NOT READILY APPARENT
Marsh Drive between Olivera Road/Solano Way and the West City Limits is an arterial street with one travel lane in each direction. The street has sidewalks on both sides along some segment of the roadway.

Abutting land uses include a car dealership, truck stop, and a self-storage facility.

Roadway Geometrics and
Intersections Traffic signals control traffic at Solano Way/Olivera Road.

B. COLLISION HISTORY
Existing Posted Speed Limit
Signature
45 MPH
Length of Segment (ft.) 1,025
Lane Configuration One (1) travel lane in each direction Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 5
Collision Rate (ACC/MVM) 3.41
Statewide Collision Rate
City of Concord

43.0 34-43

71.6%
85th Percentile
10 mph Pace
Percent in Pace
A. PREVAILING SPEED DATA
Location of Survey
Limits: Aaron Elias, City of Concord
Marsh Drive Quality Counts (QC)
Olivera Road/Solano Way - West City Limits

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: North - South
30 MPH
Approved and Authorized for release by City of Concord Transportation Division:

Summary
Engineering and Traffic Survey (E&TS)
City of Concord
Based on the factors listed above and in compliance with the CVC, it is appropriate to reduce the speed limit to 30 MPH on Meadow Lane between Market Street and Monument Boulevard. This is based on rounding the measured 85th Percentile speed (36 MPH) to the nearest 5 mph increment and taking an additional 5 mph reduction to account for the residential context of the neighborhood and a collision rate that is higher than the statewide average per CVC 22358.6(b).

General Conditions
Street Classification Arterial

1.02 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 17,249
Revised Speed Limit
Aaron Elias T.E., Transportation Program Manager II
8/27/2024
Speed Limit Determination
Revised Speed Limit
Speed Limit Change?
Existing Posted Speed Limit
30 MPH
Yes
35 MPH
D. CONDITIONS NOT READILY APPARENT
Meadow Lane between Market Street and Monument Boulevard is an arterial street with one travel lane in each direction. The street has both sidewalks and bike lanes along both sides of the roadway including limited on-street parking. Abutting land uses include neighborhood commercial, apartment complexes, and single family residential.

Roadway Geometrics and
Intersections
Traffic signals control traffic at Sunshine Drive, Robin Lane, and Monument Boulevard with side streets being stop controlled approaching Meadow Lane.

B. COLLISION HISTORY
Existing Posted Speed Limit
Signature
35 MPH
Length of Segment (ft.) 4,520
Lane Configuration One (1) travel lane in each direction w/ two-way left turn lane Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 53
Collision Rate (ACC/MVM) 3.28
Statewide Collision Rate
City of Concord

36.0 27-36

81.0%
85th Percentile
10 mph Pace
Percent in Pace
A. PREVAILING SPEED DATA
Location of Survey
Limits: Aaron Elias, City of Concord
Meadow Lane Quality Counts (QC)
Market Street - Monument Boulevard

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: North - South
Not Applicable
Approved and Authorized for release by City of Concord Transportation Division:

Summary
Engineering and Traffic Survey (E&TS)
City of Concord
Aaron Elias T.E., Transportation Program Manager II
Meridian Park Boulevard between Concord Avenue and Willow Way is a two-lane local road with sidewalk, buffered bike lanes, parking, and commercial driveways on both sides of the street. Abutting land uses include a car dealership, restaurants, a hardware store (Home Depot), retail stores, and offices.

Roadway Geometrics and
Intersections
Traffic signals control traffic at Concord Avenue. All-way stops control traffic at Burnett Avenue and Galaxy Way.

Speed Limit Determination
Based on the factors listed above and in compliance with the CVC, it is appropriate to maintain the speed limit on Meridian Park Boulevard between Concord Avenue and Willow Way. This recommendation is based on setting the speed limit to the nearest 5 MPH increment of the 85th percentile speed (30 MPH) per CVC 22358.6(a). Therefore, no change in existing speed limit is recommended.

General Conditions
Speed Limit Change?
Existing Posted Speed Limit
No
Signature
Revised Speed Limit Not Applicable
30 MPH
Statewide Collision Rate 1.02 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 6,451
D. CONDITIONS NOT READILY APPARENT
2,635
Lane Configuration One (1) travel lane in each direction with raised median Street Classification Local
Length of Segment (ft.)
Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 11
Collision Rate (ACC/MVM) 2.34
B. COLLISION HISTORY
A. PREVAILING SPEED DATA
Location of Survey
85th Percentile
10 mph Pace
Percent in Pace
City of Concord

30.0 23-32

78.5%
30 MPH Revised Speed LimitExisting Posted Speed Limit
Meridian Park Boulevard Quality Counts (QC)
Aaron Elias, City of Concord
3/25/2025Concord Avenue - Willow WayLimits:

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: East - West
35 MPH
Approved and Authorized for release by City of Concord Transportation Division:

Summary
Engineering and Traffic Survey (E&TS)
City of Concord
Signature
General Conditions
Revised Speed Limit
Speed Limit Change?
Existing Posted Speed Limit
35 MPH
Yes
40 MPH
Aaron Elias T.E., Transportation Program Manager II
Street Classification
5,145
Speed Limit Determination
D. CONDITIONS NOT READILY APPARENT
Based on the factors listed above and in compliance with the CVC, the speed limit will be reduced to 35 mph on Minert Road between Pla Vada Court and Grenole Drive. This recommendation is made based on a 5 mph reduction per CVC 22358.6(c) and an additional 5 mph speed reduction per CVC 22358.7(a)(2) due to high concentrations of pedestrians and bicyclists that occur near Oak Grove Middle School Collector
Minert Road between Oak Grove Road and the Southwest City Limits is a two-lane collector with sidewalk along the south side of the road and a buffered bicycle lane in each direction. Abutting land uses include single family residential, a church, and a middle school.

Roadway Geometrics and
Intersections
Traffic signals control traffic at Oak Grove Road while the side streets are stop controlled approaching Minert Road.
10 mph Pace 35-44
Length of Segment (ft.) 2,395
Lane Configuration One (1) travel lane in each direction B. COLLISION HISTORY
Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 4
Statewide Collision Rate 1.02 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic
Percent in Pace 68.0%
Existing Posted Speed Limit 40 MPH Revised Speed Limit
A. PREVAILING SPEED DATA
Location of Survey
Minert Road Quality Counts (QC)
Aaron Elias, City of Concord
1/7/2025
City of Concord
Oak Grove Road - Southwest City LimitsLimits:
85th Percentile 45.0
Collision Rate (ACC/MVM) 1.57

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: East - West
Not Applicable
Approved and Authorized for release by City of Concord Transportation Division:

Summary
Engineering and Traffic Survey (E&TS)
City of Concord
Aaron Elias T.E., Transportation Program Manager II
Monument Blvd between Galindo St/Cowell Rd and the City limit/Mohr Lane is a four-lane arterial between Cowell Rd/Galindo St & Walters Wy/Systron Dr and six lanes between Walters W/Systron Dr & city limit/Mohr Lane with sidewalk, transit stops, and residential and commercial driveways on both sides of the street. Abutting land uses include single-family residential, apartment/condominium, retail, strip mall, hardware stores, gas stations, and restaurants. Monument Boulevard is also a truck route.

Roadway Geometrics and
Intersections
Traffic signals control traffic at Galindo Street/Cowell Road, Walters Way/Systron Drive, Detroit Avenue, Erickson Road, Oak Grove Road/Meadow Lane, Virginia Lane, Reganti Drive, Victory Lane, Carey Drive, and Mohr Lane.

Speed Limit Determination
Based on the factors listed above and in compliance with the CVC, it is appropriate to maintain the speed limit on Monument Blvd between Galindo St/Cowell Rd and the City limit/Mohr Lane. This recommendation is based on setting the speed limit to the nearest 5 MPH increment of the 85th percentile speed per CVC 22358.6(a). Therefore, no change in existing speed limit is recommended.

General Conditions
Speed Limit Change?
Existing Posted Speed Limit
No
Signature
Revised Speed Limit Not Applicable
35 MPH
Statewide Collision Rate 1.16 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 30,997
D. CONDITIONS NOT READILY APPARENT
10,296
Lane Configuration Two (2) to three (3) travel lanes in each direction Street Classification Arterial
Length of Segment (ft.)
Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 207
Collision Rate (ACC/MVM) 2.35
B. COLLISION HISTORY
Location of Survey
85th Percentile
10 mph Pace
Percent in Pace
Existing Posted Speed Limit
City of Concord

36.0 27-36

70.5%
35 MPH Revised Speed Limit
A. PREVAILING SPEED DATA
Monument Boulevard Quality Counts (QC)
Cowell Road - City Limit near Mohr Lane Aaron Elias, City of Concord 4/24/2025Limits:

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: North - South
Not Applicable
Approved and Authorized for release by City of Concord Transportation Division:

Summary
Engineering and Traffic Survey (E&TS)
City of Concord
Aaron Elias T.E., Transportation Program Manager II
Mohr Lane between Monument Boulevard and David Avenue is a two-lane collector with sidewalk and numerous residential driveways on both sides of the street. Abutting land uses include primarily single- family residential, apartments and a convenience store. There is also the Diablo Community Day School located about half way thorught the corridor.

Roadway Geometrics and
Intersections
The alignment of Mohr Lane along this segment has horizontal curvature. Traffic signals control traffic at Monument Boulevard.The remaining intersections are side street stop controlled Speed Limit Determination
Based on the factors listed above and in compliance with the CVC, the speed limit should be maintained at 25 mph on Mohr Lane between Monument Boulevard and David Avenue. This recommendation is made based on a 5 mph reduction per CVC 22358.6(c) and an additional 5 mph speed reduction per CVC 22358.7(a)(2) due to high concentrations of pedestrians and bicyclists that occur near Diablo Community Day School.

General Conditions
Speed Limit Change?
Existing Posted Speed Limit
No
Signature
Revised Speed Limit Not Applicable
25 MPH
Statewide Collision Rate 1.02 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 3,450
D. CONDITIONS NOT READILY APPARENT
5,914
Lane Configuration One (1) travel lane in each direction Street Classification Collector
Length of Segment (ft.)
Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 18
Collision Rate (ACC/MVM) 3.19
B. COLLISION HISTORY
A. PREVAILING SPEED DATA
Location of Survey
85th Percentile
10 mph Pace
Percent in Pace
City of Concord

34.0 26-35

75.5%
25 MPH Revised Speed LimitExisting Posted Speed Limit
Mohr Lane Quality Counts (QC)
Aaron Elias, City of Concord
5/1/2025Monument Boulevard - David AvenueLimits:

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: North - South
Not Applicable
Approved and Authorized for release by City of Concord Transportation Division:

Aaron Elias T.E., Transportation Program Manager II
Signature
Revised Speed Limit Not Applicable
Speed Limit Change?
Existing Posted Speed Limit
No
30 MPH
Myrtle Drive between Ayers Road and Kirker Pass Road is a two-lane collector with sidewalk along the south side of the road and numerous residential driveways with direct frontage on both sides of the street.

Abutting land uses include primarily single-family residential in addition to Ayers Elementary School which is near the intersection of Ayers Road and Myrtle Drive.

Roadway Geometrics and
Intersections
The alignment of Myrtle Drive is straight with a mild vertical cirve that crests at Sagewood Drive. A traffic signal controls the intersection at Kirker Pass Road while an all-way stop is located at Ayers Road. Other intersections are all side-street stop controlled.

Speed Limit Determination
Based on the factors listed above and in compliance with the CVC, the speed limit should be maintained at 30 mph on Myrtle Drive between Ayers Road and Kirker Pass Road. This recommendation is made based on a 5 mph reduction per CVC 22358.6(c) and an additional 5 mph speed reduction per CVC 22358.7(a)(2) due to high concentrations of pedestrians and bicyclists that occur near Ayers Elementary School which is located on the roadway segment.

General Conditions
D. CONDITIONS NOT READILY APPARENT
Statewide Collision Rate 1.02 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 1,605
Length of Segment (ft.) 5,185
Lane Configuration One (1) travel lane in each direction Street Classification Collector
Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 5
Collision Rate (ACC/MVM) 2.17
Percent in Pace
Existing Posted Speed Limit
B. COLLISION HISTORY

64.5%
30 MPH Revised Speed Limit
A. PREVAILING SPEED DATA
Location of Survey
85th Percentile
10 mph Pace
City of Concord

39.0 29-38
City of Concord
Ayers Road - Kirker Pass RoadLimits:

Myrtle Drive Quality Counts (QC)
Summary
Engineering and Traffic Survey (E&TS)
Aaron Elias, City of Concord
4/29/2025

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: North - South
Not Applicable
Approved and Authorized for release by City of Concord Transportation Division:

Summary
Engineering and Traffic Survey (E&TS)
City of Concord
Aaron Elias T.E., Transportation Program Manager II
Nelson Avenue between Bates Avenue and Laura Alice Way is a four-lane collector with industrial and commercial driveways on both sides of the street. The street has no sidewalk on either side. Abutting land uses include industrial/commercial buildings and offices.

Roadway Geometrics and
Intersections
The alignment of Nelson Avenue follows a horizontal curve. Nelson Avenue is stop controlled at both Bates Avenue and Laura Alice Way.

Speed Limit Determination
Based on the factors listed above, it is appropriate to maintain the speed limit at 35 MPH on Nelson Avenue between Bates Avenue and Laura Alice Way. This recommendation is based on rounding the 85th percentile speed (37 MPH) to the nearest 5 MPH increment (35 MPH) per CVC 22358.6(a).

Therefore, no change in the existing speed limit is recommended.

General Conditions
Speed Limit Change?
Existing Posted Speed Limit
No
Signature
Revised Speed Limit Not Applicable
35 MPH
Statewide Collision Rate 1.16 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 4,683
D. CONDITIONS NOT READILY APPARENT
2,574
Lane Configuration Two (2) travel lanes in each direction Street Classification Collector
Length of Segment (ft.)
Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 4
Collision Rate (ACC/MVM) 1.20
B. COLLISION HISTORY
A. PREVAILING SPEED DATA
Location of Survey
85th Percentile
10 mph Pace
Percent in Pace
35 MPH Revised Speed Limit
City of Concord

37.0 27-36

66.0%
Existing Posted Speed Limit
Nelson Avenue Quality Counts (QC)
Aaron Elias, City of Concord
3/11/2025Bates Avenue - Laura Alice WayLimits:

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: East - West
Not Applicable
Approved and Authorized for release by City of Concord Transportation Division:

Summary
Engineering and Traffic Survey (E&TS)
City of Concord
Based on the factors listed above and in compliance with the CVC, it is appropriate to maintain the speed limit at 30 MPH on North Larwin Avenue between Cowell Road and Kenneth Road. This is based on a rounding of the measured 85th Percentile speed (29 MPH) to the nearest 5 mph increment per CVC 22358.6(a).

General Conditions
Street Classification Local

1.02 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 2,687
Revised Speed Limit
Aaron Elias T.E., Transportation Program Manager II
8/13/2024
Speed Limit Determination
Revised Speed Limit
Speed Limit Change?
Existing Posted Speed Limit
Not Applicable
No
30 MPH
D. CONDITIONS NOT READILY APPARENT
North Larwin Avenue between Cowell Road and Ayers Road is a local street with one travel lane in each direction including sidewalks on both sides. Abutting land uses include only single family residential dwellings.

Roadway Geometrics and
Intersections
Traffic signals control traffic at Cowell Road with most of the side streets being stop controlled approaching North Larwin Avenue. All-way stop is present at Rising Dawn Lane and Smoke Tree Court.

There are also speed humps along the entire segment of North Larwin Avenue.

B. COLLISION HISTORY
Existing Posted Speed Limit
Signature
30 MPH
Length of Segment (ft.) 6,494
Lane Configuration One (1) travel lane in each direction Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 1
Collision Rate (ACC/MVM) 0.28
Statewide Collision Rate
City of Concord

29.0 21-30

90.0%
85th Percentile
10 mph Pace
Percent in Pace
A. PREVAILING SPEED DATA
Location of Survey
Limits: Aaron Elias, City of Concord
North Larwin Avenue Quality Counts (QC)
Entire Length (Cowell to Ayers)

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: North - South
Not Applicable
Approved and Authorized for release by City of Concord Transportation Division:

Summary
Engineering and Traffic Survey (E&TS)
City of Concord
Aaron Elias T.E., Transportation Program Manager II
Oak Grove Rd between Monument Blvd and Junction Drive is an arterial street with sidewalk, transit stops, residential and commercial driveways on both sides. The street has two travel lanes in each direction with raised median between Monument Blvd and 1036 Oak Grove Rd and two-way left-turn lane between 1036 Oak Grove Rd and Junction Drive. Abutting land uses include single-family residential, apartments, health care facilities and a drug store. The street also serves as a continuation of the school route to various area schools (e.g., St. Francis of Assisi, Ygnacio Valley High, Ygnacio Valley Elementary and Oak Grove Middle).

Roadway Geometrics and
Intersections
The alignment of Oak Grove Road along this segment follows a horizontal curve. Traffic signals control traffic at Monument Boulevard, Sierra Road, Whitman Road, and Chalomar Road.

Speed Limit Determination
Based on the factors listed above, it is appropriate to maintain a speed limit of 35 MPH on Oak Grove Road between Monument Boulevard and Junction Drive. This recommendation is based on rounding of the measured 85th Percentile to (40 MPH) and taking an additional 5 MPH reduction per CVC 22358.6(b) to account for the high number of residences, health care facilities, and the road serving as a route to schools. Therefore, no change in existing speed limit is recommended. High collision rate further justifies the 35 MPH speed limit since collisions are almost four times the statewide average.

General Conditions
Speed Limit Change?
Existing Posted Speed Limit
No
Signature
Revised Speed Limit Not Applicable
35 MPH
Statewide Collision Rate 1.16 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 17,045
D. CONDITIONS NOT READILY APPARENT
4,114
Lane Configuration Two (2) travel lanes in each direction Street Classification Arterial
Length of Segment (ft.)
Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 30
Collision Rate (ACC/MVM) 1.55
B. COLLISION HISTORY
A. PREVAILING SPEED DATA
Location of Survey
85th Percentile
10 mph Pace
Percent in Pace
35 MPH Revised Speed Limit
City of Concord

41.0 32.5-41.5

75.5%
Existing Posted Speed Limit
Oak Grove Road Quality Counts (QC)
Aaron Elias, City of Concord
3/20/2025Monument Boulevard - Junction DriveLimits:

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: North - South
35 MPH
Approved and Authorized for release by City of Concord Transportation Division:

Aaron Elias T.E., Transportation Program Manager II
Signature
Revised Speed Limit 35 MPH
Oak Grove Road between Junction Drive and South City Limits (Contra Costa Canal Trail) is an arterial street with two travel lanes in each direction and a two-way left-turn lane. The street has sidewalks along both sides. Abutting land uses include single-family residential, apartment complex, strip malls, gas stations, medical office, and schools (Ygnacio Valley High & St Francis of Assisi).

Roadway Geometrics and
Intersections
Traffic signals control traffic at David Avenue, Minert Road, Smith Lane, Treat Boulevard, Ygnacio Valley High, and Contra Costa Canal Trail Crossing.

Speed Limit Determination
Based on the factors listed above and in compliance with the CVC, it is appropriate to reduce the speed limit to 35 MPH on Oak Grove Road between Junction Drive and South City Limits. This is based on a downward rounding the measured 85th Percentile speed (38 MPH) to the nearest 5 mph increment per CVC 22358.6(c).

General Conditions
Speed Limit Change?
Existing Posted Speed Limit
Yes
40 MPH
Statewide Collision Rate 1.16 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 21,515
D. CONDITIONS NOT READILY APPARENT
5,544
Lane Configuration Two (2) travel lanes in each direction with two-way left turn lane Street Classification Arterial
Length of Segment (ft.)
Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 24
Collision Rate (ACC/MVM) 0.73
B. COLLISION HISTORY
Location of Survey
85th Percentile
10 mph Pace
Percent in Pace
Existing Posted Speed Limit
City of Concord

38.0 29-38

77.5%
40 MPH Revised Speed Limit
A. PREVAILING SPEED DATA
Oak Grove Road Quality Counts (QC)
Summary
Engineering and Traffic Survey (E&TS)
City of Concord
Aaron Elias, City of Concord
4/30/2025Junction Drive - South City LimitsLimits:

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: North - South
25 MPH
Approved and Authorized for release by City of Concord Transportation Division:

Summary
Engineering and Traffic Survey (E&TS)
City of Concord
Based on the factors listed above and in compliance with the CVC, it is appropriate to reduce the speed limit to 25 MPH on Oakland Avenue between Clayton Road and Mount Diablo Street. This is based on rounding the measured 85th Percentile speed (31 MPH) to the nearest 5 mph increment and taking an additional 5 mph reduction to account for a collision rate that is higher than the statewide average and due to the proximity to the BART station which generates a significant amount of multimodal traffic per CVC 22358.6(b).

General Conditions
Street Classification Arterial

1.02 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 6,941
Revised Speed Limit
Aaron Elias T.E., Transportation Program Manager II
8/29/2024
Speed Limit Determination
Revised Speed Limit
Speed Limit Change?
Existing Posted Speed Limit
25 MPH
Yes
30 MPH
D. CONDITIONS NOT READILY APPARENT
Oakland Avenue between Clayton Road and Mount Diablo Street is an arterial street with one travel lane in each direction along with a two-way left turn lane between Pacific Street and Prospect Street. The street has both sidewalks and bike lanes along both sides of the roadway including limited on-street parking.

Abutting land uses include residential dwellings (east side) and the Concord BART station (west side).

Roadway Geometrics and
Intersections
Traffic signals control traffic at Clayton Road and an all-way stop controls traffic at Mount Diablo Street.

Side streets are stop controlled approaching Oakland Avenue.

B. COLLISION HISTORY
Existing Posted Speed Limit
Signature
30 MPH
Length of Segment (ft.) 1,558
Lane Configuration One (1) travel lane in each direction w/ two-way left turn lane Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 2
Collision Rate (ACC/MVM) 0.89
Statewide Collision Rate
City of Concord

31.0 22-31

80.0%
85th Percentile
10 mph Pace
Percent in Pace
A. PREVAILING SPEED DATA
Location of Survey
Limits: Aaron Elias, City of Concord
Oakland Avenue Quality Counts (QC)
Clayton Road - Mount Diablo Street

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: East - West
Not Applicable
Approved and Authorized for release by City of Concord Transportation Division:

Summary
Engineering and Traffic Survey (E&TS)
City of Concord
Based on the factors listed above and in compliance with the CVC, the speed limit will be maintained at 30 mph on Olivera Road between Solano Way and Hillsborough Drive. This recommendation is made based on a 5 MPH reduction per CVC 22358.6(c) and an additional 5 MPH speed reduction per CVC 22358.7(a)(2) due to high concentrations of pedestrians and bicyclists that occur due the adjacent Hillcrest Community Park and the Solano Drive In (which hosts a weekly flee market).

General Conditions
Street Classification Arterial

1.02 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 10,283
Revised Speed Limit
Aaron Elias T.E., Transportation Program Manager II
5/2/2024
Speed Limit Determination
Revised Speed Limit
Speed Limit Change?
Existing Posted Speed Limit
Not Applicable
No
30 MPH
D. CONDITIONS NOT READILY APPARENT
Olivera Road between Solano Way and Hillsborough Drive is an arterial street with some sidewalk on both sides. The number of travel lane varies from one to two with or without raised median. The street also has two-way left turn lanes between Grant Street and Peralta Road. Abutting land uses include multi-family residential, churches, park, drive in theater, and light industrial.

Roadway Geometrics and
Intersections Traffic signals control traffic at Hillsborough Drive and Grant Street/Northwood Drive.

B. COLLISION HISTORY
Existing Posted Speed Limit
Signature
30 MPH
Length of Segment (ft.) 4,691
Lane Configuration One (1) to two (2) travel lanes in each direction Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 12
Collision Rate (ACC/MVM) 1.20
Statewide Collision Rate
City of Concord

38.0 29-38

72.0%
85th Percentile
10 mph Pace
Percent in Pace
A. PREVAILING SPEED DATA
Location of Survey
Limits: Aaron Elias, City of Concord
Olivera Road Quality Counts (QC)
Solano Way - Hillsborough Drive

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: East - West
Not Applicable
Approved and Authorized for release by City of Concord Transportation Division:

Summary
Engineering and Traffic Survey (E&TS)
City of Concord
A. PREVAILING SPEED DATA
Olivera Road Quality Counts (QC)
Hillsborough Drive - Hamilton Avenue Aaron Elias, City of Concord 4/22/2025Limits:

B. COLLISION HISTORY
Location of Survey
85th Percentile
10 mph Pace
City of Concord

32.0 24-33

84.5%
25 MPH Revised Speed Limit
Percent in Pace
Existing Posted Speed Limit
Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 31
Collision Rate (ACC/MVM) 2.48
D. CONDITIONS NOT READILY APPARENT
Statewide Collision Rate 1.02 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 8,395
Length of Segment (ft.) 5,386
Lane Configuration One (1) travel lane in each direction Street Classification Collector & Arterial
Olivera Road between Hillsborough Drive and Mars Street is a two-lane street that is an arterial west of Port Chicago Highway and a collector east the there. Abutting land uses include single family residential with direct driveway access to Olivera Road, Olivera Crossing Shopping Mall, and two schools including Rocketship Futuro Academy and Holbrook Language Academy. These land uses, especially the schools, generate a large volume of pedestrian and bicycle activity among students.

Roadway Geometrics and
Intersections
The alignment of Olivera Road along this segment is generally straight but there are horizontal curves near Dormer Avenue and Pyro Street. Traffic signals control traffic at Hillsborough Drive and Port Chicago Highway. There is also an all-way stop at Esperanza Drive.

Speed Limit Determination
Based on the factors listed above and in compliance with the CVC, it is appropriate to maintain the speed limit at 25 MPH on Olivera Road between Hillsborough Drive and Mars Street. This is based on rounding the measured 85th Percentile speed (32 MPH) to the nearest 5 mph increment and taking an additional 5 mph reduction to account for the significant amount of pedestrian and bicycle activity occuring near the two schools located near the corridor per CVC 22358.6(b).

General Conditions
Aaron Elias T.E., Transportation Program Manager II
Signature
Revised Speed Limit
Speed Limit Change?
Existing Posted Speed Limit
Not Applicable
No
25 MPH

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: East - West
Not Applicable
Approved and Authorized for release by City of Concord Transportation Division:

Summary
Engineering and Traffic Survey (E&TS)
City of Concord
Aaron Elias T.E., Transportation Program Manager II
Olivera Road between Hamilton Avenue and Willow Pass Road/Farm Bureau Road is a two-lane collector.

Abutting land uses include the Willow Pass community recreation center, Pixieland Amusement Park, and multi-family residential located in side streets off Hamilton Avenue, Pyro Street, and Mars Street. There is also a significant amount of open space on the east side of the road that was the former Naval Weapons Station.

Roadway Geometrics and
Intersections
The alignment of Olivera Road along this segment follows horizontal curves. Traffic signals control traffic at Willow Pass Road/Farm Bureau Road. The remaining intersections operate with side street stop control.

Speed Limit Determination
Based on the factors listed above and in compliance with the CVC, it is appropriate to maintain the speed limit on Olivera Road between Hamilton Avenue and Willow Pass Road/Farm Bureau Road. This recommendation is based on rounding the measured 85th Percentile speed (38 MPH) down to the nearest 5 mph increment per CVC 22358.6(c). Therefore, no change in existing speed limit is recommended.

General Conditions
Speed Limit Change?
Existing Posted Speed Limit
No
Signature
Revised Speed Limit Not Applicable
35 MPH
Statewide Collision Rate 1.02 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 7,877
D. CONDITIONS NOT READILY APPARENT
3,240
Lane Configuration One (1) travel lane in each direction Street Classification Collector
Length of Segment (ft.)
Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 7
Collision Rate (ACC/MVM) 0.99
B. COLLISION HISTORY
Location of Survey
85th Percentile
10 mph Pace
Percent in Pace
Existing Posted Speed Limit
City of Concord

38.0 31-40

83.8%
35 MPH Revised Speed Limit
A. PREVAILING SPEED DATA
Olivera Road Quality Counts (QC)
Hamilton Avenue - Willow Pass Road Aaron Elias, City of Concord 4/22/2025Limits:

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: North - South
Not Applicable
Approved and Authorized for release by City of Concord Transportation Division:

Summary
Engineering and Traffic Survey (E&TS)
City of Concord
Aaron Elias T.E., Transportation Program Manager II
Peralta Road between Olivera Road and Arnold Industrial Place is a two-lane local roadway divided by a two-way left-turn lane. The street has sidewalk along most of the east side of the road except near Peralta Road and no sidewalks along the west side. Abutting land uses include residential on the east side of the road and a drive-in movie theater/swap meet on the west side. The roadway is extremely busy on the weekends when a swap meet is hosted during the day at the drive-in theater resulting in significant traffic and pedestrian activity.

Roadway Geometrics and
Intersections
All-way stop controls traffic at Arnold Industrial Place while Olivera Road is side street stop controlled with Peralta Road yielding to Olivera Road.

Speed Limit Determination
Based on the factors listed above, it is appropriate to maintain a speed limit of 30 MPH on Peralta Road between Olivera Road and Arnold Industrial Place. This recommendation is based on rounding the 85th percentile to the nearest 5 MPH increment and taking a further 5 MPH reduction per CVC 22358.6(b) to account for the significant amount of vehicle and pedestrian activity that occurs on Peralta Road as a result of the swap meet that occurs on the weekend. Therefore, no change in existing speed limit is recommended.

General Conditions
Speed Limit Change?
Existing Posted Speed Limit
No
Signature
Revised Speed Limit Not Applicable
30 MPH
Statewide Collision Rate 1.02 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 6,805
D. CONDITIONS NOT READILY APPARENT
1,191
Lane Configuration One (1) travel lane in each direction Street Classification Local
Length of Segment (ft.)
Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 3
Collision Rate (ACC/MVM) 1.34
B. COLLISION HISTORY
A. PREVAILING SPEED DATA
Location of Survey
85th Percentile
10 mph Pace
Percent in Pace
30 MPH Revised Speed Limit
City of Concord

36.0 29-38

78.2%
Existing Posted Speed Limit
Peralta Road Quality Counts (QC)
Aaron Elias, City of Concord
3/18/2025Olivera Road - Arnold Industrial PlaceLimits:

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: East - West
Not Applicable
Approved and Authorized for release by City of Concord Transportation Division:

Summary
Engineering and Traffic Survey (E&TS)
City of Concord
Aaron Elias T.E., Transportation Program Manager II
Pine Hollow Road between Alberta Way and East City Limits is arterial street with sidewalk and residential driveways on the both sides. The number of travel lanes in each direction varies from one to two lanes with or without two-way left-turn lane. Abutting land uses primarily include single-family residential and schools. Being a truck route, a large number of truck traffic routinely travel on Pine Hollow Road to access the Clayton Quarry. The street also serves as continuation of the school route to Highlands Elementary School and Pine Hollow Middle School, where there is a school speed zone of 25 MPH.

Roadway Geometrics and
Intersections
The alignment of Pine Hollow Road along this segment follows a horizontal curve. Traffic signals control traffic at Ygnacio Valley Road/Alberta Way and Rolling Woods Way. All-way stops control traffic at Pennsylvania Boulevard and there is an uncontrolled school crossing at Indiana Drive.

Speed Limit Determination
Based on the factors listed above and in compliance with the CVC, the speed limit will be maintained at 35 mph on Pine Hollow Road between Alberta Way and East City Limits. This recommendation is made based on a 5 MPH reduction per CVC 22358.6(c) and an additional 5 MPH speed reduction per CVC 22358.7(a)(2) due to high concentrations of pedestrians and bicyclists that occur due the two adjacent schools (Highlands Elementary & Pine Hollow Middle).

General Conditions
Speed Limit Change?
Existing Posted Speed Limit
No
Signature
Revised Speed Limit Not Applicable
35 MPH
Statewide Collision Rate 1.02 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 10,677
D. CONDITIONS NOT READILY APPARENT
6,178
Lane Configuration One (1) to two (2) travel lanes in each direction Street Classification Arterial
Length of Segment (ft.)
Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 5
Collision Rate (ACC/MVM) 0.27
B. COLLISION HISTORY
A. PREVAILING SPEED DATA
Location of Survey
85th Percentile
10 mph Pace
Percent in Pace
City of Concord

45.0 35-44

68.5%
35 MPH Revised Speed LimitExisting Posted Speed Limit
Pine Hollow Road Quality Counts (QC)
Aaron Elias, City of Concord
4/30/2025Alberta Way - East City LimitsLimits:

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: North
Not Applicable
Approved and Authorized for release by City of Concord Transportation Division:

Summary
Engineering and Traffic Survey (E&TS)
City of Concord
Aaron Elias T.E., Transportation Program Manager II
Port Chicago Highway between Clayton Road and Almond Avenue is one way northbound between Clayton Road and Salvio Street with three to four lanes in each direction. Between Salvio Street and Almond Avenue, Port Chicago Highway is two lanes in both the NB and SB directions. There are no dedicated bicycle facilities but there are continuous sidewalks along the eastern side of the road a a few sidewalk gaps along the west side which are being filled in as property develops. Abutting land uses include businesses and residential dwellings.

Roadway Geometrics and
Intersections
Traffic signals control traffic at Sunset Avenue, Concord Boulevard, Willow Pass Road, Salvio Street, Pacheco Street, Bonifacio Street, and Almond Avenue.

Speed Limit Determination
Based on the factors listed above, it is appropriate to maintain a speed limit of 30 MPH on Port Chicago Highway between Clayton Road and Almond Avenue. This recommendation is made based on rounding the 85th percentile speed down to the nearest 5 MPH increment (30 MPH) per CVC 22358.6(c) which better accounts for the general land context and pedestrian/bicycle activity that occurs on this street located in the downtown area of Concord. Therefore, no change in existing speed limit is recommended.

General Conditions
Speed Limit Change?
Existing Posted Speed Limit
No
Signature
Revised Speed Limit Not Applicable
30 MPH
Statewide Collision Rate 1.16 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 10,115
D. CONDITIONS NOT READILY APPARENT
2,713
Lane Configuration Two (2) to Four (4) travel lanes NB and Two (2) travel lanes SB Street Classification Arterial
Length of Segment (ft.)
Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 37
Collision Rate (ACC/MVM) 4.88
B. COLLISION HISTORY
Location of Survey
85th Percentile
10 mph Pace
Percent in Pace
Existing Posted Speed Limit
City of Concord

34.0 25-34

74.5%
30 MPH Revised Speed Limit
A. PREVAILING SPEED DATA
Port Chicago Highway Quality Counts (QC)
Clayton Road - Almond Avenue Aaron Elias, City of Concord 5/15/2025Limits:

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: North - South
Not Applicable
Approved and Authorized for release by City of Concord Transportation Division:

Summary
Engineering and Traffic Survey (E&TS)
City of Concord
Aaron Elias T.E., Transportation Program Manager II
Port Chicago Highway between Almond Avenue and Olivera Road is an arterial street with sidewalk (both sides) and commercial driveways primarily on the west side. The number of travel lanes varies from one lane in each direction between High School Avenue and Olivera Road and two lanes in each direction between Almond Avenue and High School Avenue. Abutting land uses include, a hospital (John Muir Medical Center), single-family residential, gas station, strip mall, fast food restaurant and convenience store.

Roadway Geometrics and
Intersections
The alignment of Port Chicago Highway along this segment follows a horizontal curve. Traffic signals control traffic at Almond Avenue, High School Avenue, Hickory Drive/N 6th Street, and Olivera Road.

Speed Limit Determination
Based on the factors listed above, it is appropriate to maintain the speed limit at 35 MPH on Port Chicago Highway between Almond Avenue and Olivera Road. This recommendation is based on rounding the 85th percentile speed to the nearest 5 MPH increment (35) per CVC 22358.6(a). Therefore, no change in existing speed limit is recommended.

General Conditions
Speed Limit Change?
Existing Posted Speed Limit
No
Signature
Revised Speed Limit Not Applicable
35 MPH
Statewide Collision Rate 0.95 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 10,252
D. CONDITIONS NOT READILY APPARENT
4,964
Lane Configuration One (1) to two (2) travel lanes each direction with raised median Street Classification Arterial
Length of Segment (ft.)
Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 26
Collision Rate (ACC/MVM) 1.85
B. COLLISION HISTORY
A. PREVAILING SPEED DATA
Location of Survey
85th Percentile
10 mph Pace
Percent in Pace
City of Concord

37.0 22-31

63.5%
35 MPH Revised Speed LimitExisting Posted Speed Limit
Port Chicago Highway Quality Counts (QC)
Aaron Elias, City of Concord
5/13/2025Almond Avenue - Olivera RoadLimits:

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: North - South
Not Applicable
Approved and Authorized for release by City of Concord Transportation Division:

Aaron Elias T.E., Transportation Program Manager II
Signature
Revised Speed Limit Not Applicable
Port Chicago Highway between Olivera Road and Panoramic Drive is an arterial street with sidewalk on the west side only. The street has one travel lane in each direction between Olivera Road & Ranchito Drive, and two travel lanes in each direction between Ranchito Drive & Panoramic Drive. BART tracks also run parallel to Port Chicago Highway on the east side. Abutting land uses include residential dwellings, a gas station, and the North Concord BART station.

Roadway Geometrics and
Intersections
Traffic signals control traffic at Olivera Road and at Panoramic Drive. Remaining intersections operate with side street stop control.

Speed Limit Determination
Based on the factors listed above, it is appropriate to maintain the speed limit to 40 MPH on Port Chicago Highway between Olivera Road and Panoramic Drive. This recommendation is based on rounding the 85th percentile speed to the nearest 5 MPH increment (40) per CVC 22358.6(a). Therefore, no change in existing speed limit is recommended.

General Conditions
Speed Limit Change?
Existing Posted Speed Limit
No
40 MPH
Statewide Collision Rate 1.02 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 14,463
D. CONDITIONS NOT READILY APPARENT
3,856
Lane Configuration One (1) to two (2) travel lanes each direction Street Classification Arterial
Length of Segment (ft.)
Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 28
Collision Rate (ACC/MVM) 1.82
B. COLLISION HISTORY
Location of Survey
85th Percentile
10 mph Pace
Percent in Pace
Existing Posted Speed Limit
City of Concord

42.0 34-43

54.5%
40 MPH Revised Speed Limit
A. PREVAILING SPEED DATA
Port Chicago Highway Quality Counts (QC)
Summary
Engineering and Traffic Survey (E&TS)
City of Concord
Aaron Elias, City of Concord
5/13/2025Olivera Road - Panoramic DriveLimits:

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: North - South
40 MPH
Approved and Authorized for release by City of Concord Transportation Division:

Aaron Elias T.E., Transportation Program Manager II
Signature
Revised Speed Limit 40 MPH
Port Chicago Highway between Panoramic Drive and the city limits north of Bates Avenue is a collector street with sidewalks primarily on the east side of the road but there are gaps in the sidewalk in older sections of the roadway. The number of travel lanes along this segment of Port Chicago Highway varies from one (1) to three (3) lanes in each direction. Abutting land uses include North Concord BART station, s golf course, open space, and light industrial buildings.

Roadway Geometrics and
Intersections
Traffic signals control traffic at Panoramic Drive, WB Highway 4 On/Off Ramps, Arnold Industrial Way, and Bates Avenue.

Speed Limit Determination
Based on the factors listed above, it is appropriate to reduce the speed limit to 40 MPH on Port Chicago Highway between Panoramic Drive and the northern city limit north of Bates Avenue. This recommendation is based on rounding the 85th percentile speed to the nearest 5 MPH increment per CVC 22358.6(a) based on the prevailing 85th Percentile speed. Therefore, the proposed revised speed limit is 40 MPH.

General Conditions
Speed Limit Change?
Existing Posted Speed Limit
Yes
45 MPH
Statewide Collision Rate 1.16 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 14,967
D. CONDITIONS NOT READILY APPARENT
6,125
Lane Configuration One (1) to three (3) travel lanes each direction Street Classification Collector
Length of Segment (ft.)
Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 22
Collision Rate (ACC/MVM) 0.87
B. COLLISION HISTORY
Location of Survey
85th Percentile
10 mph Pace
Percent in Pace
Existing Posted Speed Limit 45 MPH Revised Speed Limit
City of Concord

42.0 33-42

71.8%
A. PREVAILING SPEED DATA
Port Chicago Highway Quality Counts (QC)
Summary
Engineering and Traffic Survey (E&TS)
City of Concord
Aaron Elias, City of Concord
3/13/2025Panoramic Drive - City LimitLimits:

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: North - South
35 MPH
Approved and Authorized for release by City of Concord Transportation Division:

Aaron Elias T.E., Transportation Program Manager II
Signature
Revised Speed Limit 35 MPH
Speed Limit Change?
Existing Posted Speed Limit
Yes
30 MPH
Rolling Woods Way between Pine Hollow Road and the northern boundary for the Crystyl Ranch subdivision is an undivided local street with one travel lane in each direction street. There is a sidewalk on both sides of the street and the east side has a gravel trail that is part of the California Riding and Hiking Trail. There is also a trail crossing for this trail at Vista Point Lane. Abutting land uses include an open space area and single-family residential dwellings that do not front onto the road.

Roadway Geometrics and
Intersections There is a traffic signal at Pine Hollow Road but all other intersections are side-street stop controlled.

Speed Limit Determination
Based on the factors listed above, it is appropriate to raise the speed limit to 35 MPH on Rolling Woods Way between Pine Hollow Road and the northern boundary for the Crystyl Ranch subdivision. This recommendation is based on rounding the 85th percentile speed to the nearest 5 MPH increment and taking an additional 5 MPH reduction per CVC 22358.6(b) to account for the pedestrian, bicycle, and equestrian activity where the California Hiking and Riding Trail crosses the street at Vista Point Lane.

Therefore, the proposed revised speed limit is 35 MPH.

General Conditions
D. CONDITIONS NOT READILY APPARENT
Statewide Collision Rate 1.02 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 1,450
Length of Segment (ft.) 2,895
Lane Configuration One (1) travel lane in each direction Street Classification Local
Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 0
Collision Rate (ACC/MVM) 0.00
Percent in Pace
Existing Posted Speed Limit
B. COLLISION HISTORY

61.0%
30 MPH Revised Speed Limit
A. PREVAILING SPEED DATA
Location of Survey
85th Percentile
10 mph Pace
City of Concord

41.0 31-40
City of Concord
Pine Hollow Road - Northern Crystyl Ranch
BoundaryLimits:

Rolling Woods Way Quality Counts (QC)
Summary
Engineering and Traffic Survey (E&TS)
Aaron Elias, City of Concord
3/20/2025

Street: Field Observer:

Checked By:

Date of Speed Survey:

Factors Direction: East-West
Not Applicable
Approved and Authorized for release by City of Concord Transportation Division:

Aaron Elias T.E., Transportation Program Manager II
Signature
Revised Speed Limit Not Applicable
Speed Limit Change?
Existing Posted Speed Limit
No
25 MPH
Salvio Street between Port Chicago Highway and Olivera Road is a collector roadway with one lane in each direction that generally has sidewalks on both sides of the roadway except near Olivera Road. Class II bicycle facilities are present between Port Chicago and Parkside Drive. Abutting land uses include single family residential, medical offices, city hall, Olympic High School, and Willow Pass Community Park.

Roadway Geometrics and
Intersections
There is a traffic signal at Port Chicago Highway and all-way stop control is present at Date Street, Parkside Drive, Esperanza Drive, and 6th Street. There is also a vertical curve between Esperanza Drive and Altura Drive.

Speed Limit Determination
Based on the factors listed above, it is appropriate to maintain the speed limit at 25 MPH on Salvio Street between Port Chicago Highway and Olivera Road. This recommendation is based on rounding the 85th percentile to the nearest 5 MPH increment and taking a further 5 MPH reduction per CVC 22358.6(b) to account for the significant amount of pedestrian activity that occurs on Salvio Street as a result of the High School and civic building/assets (City Hall, Library, and Willow Pass Community Park). Therefore, no change in existing speed limit is recommended.

General Conditions
D. CONDITIONS NOT READILY APPARENT
Statewide Collision Rate 1.02 (2022 Collision Data on California State Highways, Caltrans) C. TRAFFIC FACTORS
Average Daily Traffic 2,805
Length of Segment (ft.) 4,003
Lane Configuration One (1) travel lane each direction
Street Classification Collector
Collision Rate (ACC/MVM) 2.25
Percent in Pace
Existing Posted Speed Limit 25 MPH Revised Speed Limit

75.5%
B. COLLISION HISTORY
Date Range Covered 07/01/2020 to 06/30/2023
Total Collisions 7
A. PREVAILING SPEED DATA
Location of Survey
85th Percentile
10 mph Pace
City of Concord

31.0 22-31
City of Concord
Port Chicago Highway - Olivera RoadLimits:

Salvio Street Quality Counts (QC)
Summary
Engineering and Traffic Survey (E&TS)
Aaron Elias, City of Concord
3/11/2025