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THIRD AMENDMENT TO
PROFESSIONAL SERVICES AGREEMENT
BETWEEN THE CITY OF CORONA
AND
CHA CONSULTING, INC.
CONSTRUCTION MANAGEMENT AND INSPECTION SERVICES - MCKINLEY
STREET GRADE SEPARATION PROJECT
1. PARTIES AND DATE.
This Third Amendment to the Professional Services Agreement (“Third Amendment”) is made and entered into this _____ day of ____________, 2026 by and between the City of Corona (“City”) and CHA Consulting, Inc., a New York corporation (“Consultant”). City and Consultant are sometimes individually referred to as “Party” and collectively as “Parties” in this Third Amendment.
2. RECITALS.
2.1 Agreement. City and Consultant entered into that certain Professional Services Agreement dated April 7, 2021 (“Agreement”), whereby Consultant agreed to provide construction management and inspection services for the McKinley Street Grade Separation Project.
2.2 Prior Amendments. City and Consultant entered into that certain First Amendment to the Professional Services Agreement dated December 28, 2021 (“First Amendment”). City and Consultant entered into that certain Second Amendment to the Professional Services Agreement dated October 30, 2024 (“Second Amendment”).
2.3 Amendment. City and Consultant desire to amend the Agreement for the third time to (1) amend the Rates & Total Compensation by $13,428,081.84 to $13,985,610.72; and (2) replace Exhibit “C-2” (Compensation) with Exhibit “C-3” (Compensation).
3. TERMS.
3.1 Section 3.3.1 Rates & Total Compensation and Exhibit “C-2” (Compensation) as amended of the Second Amendment are hereby deleted in their entirety and replaced with the following:
“3.3.1 Rates & Total Compensation. Consultant shall receive compensation, including authorized reimbursements, for all Services rendered under this Agreement at the rates set forth in Exhibit “C-2” attached hereto and incorporated herein by reference. The total compensation, including authorized reimbursements, shall not exceed Thirteen Million Nine Hundred Eighty - Five Thousand Six Hundred Ten Dollars and SeventyTwo Cents ($13,985,610.72) (“Total Compensation”), without Docusign Envelope ID: 9445C578-4C0D-4C43-8EE3-624A5EFE6357 Docusign Envelope ID: 3951C3CE-1195-4696-B474-5D801764FA9E Docusign Envelope ID: 8A3CE12E-064C-4335-B86D-153FC8071AC3 CA\DD\02000.50105\10005846.1
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written approval of City’s Representative. Extra Work may be authorized, as described below, and if authorized, will be compensated at the rates and manner set forth in this Agreement.”
3.2 Continuing Effect of Agreement. Except as amended by this Third Amendment, all provisions of the Agreement shall remain unchanged and in full force and effect.
From and after the date of this Third Amendment, whenever the term “Agreement” appears in the Agreement, it shall mean the Agreement as amended by this Third Amendment.
3.3 Adequate Consideration. The Parties hereto irrevocably stipulate and agree that they have each received adequate and independent consideration for the performance of the obligations they have undertaken pursuant to this Third Amendment.
3.4 Counterparts. This Third Amendment may be executed in duplicate originals, each of which is deemed to be an original, but when taken together shall constitute but one and the same instrument.
[SIGNATURES ON FOLLOWING PAGE]
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CITY’S SIGNATURE PAGE FOR
THIRD AMENDMENT TO
PROFESSIONAL SERVICES AGREEMENT
BETWEEN THE CITY OF CORONA
AND CHA CONSULTING, INC.
CONSTRUCTION MANAGEMENT AND INSPECTION SERVICES - MCKINLEY
STREET GRADE SEPARATION PROJECT
IN WITNESS WHEREOF, the Parties have entered into this Third Amendment to Professional Services Agreement as of the date first written above.
CITY OF CORONA
By: _________________________
Savat Khamphou
Public Works Director/City Engineer
Reviewed By: _________________________
Javier Luna
CIP Manager/Assistant City Engineer
Reviewed By: _________________________
Nicole McDaniel
Assistant to the City Manager/Acting Purchasing Manager Attest: _________________________
Sylvia Edwards, City of Corona, CA
City Clerk
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CONSULTANT’S SIGNATURE PAGE FOR
THIRD AMENDMENT TO
PROFESSIONAL SERVICES AGREEMENT
BETWEEN THE CITY OF CORONA
AND CHA CONSULTING, INC.
CONSTRUCTION MANAGEMENT AND INSPECTION SERVICES - MCKINLEY
STREET GRADE SEPARATION PROJECT
IN WITNESS WHEREOF, the Parties have entered into this Third Amendment to Professional Services Agreement as of the date first written above.
CHA CONSULTING, INC.
a New York corporation
By: _________________________
Gregory S. Corso
CEO
By: _________________________
Michael A. Platt
Secretary
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EXHIBIT “C-2”
COMPENSATION
1. Rates
A. Consultant Hourly Rates
Consultant shall charge the rates provided for on Page C-1 (dated 03-24-21) attached hereto and incorporated herein by reference.
B. Subconsultant Hourly Rates
For its subconsultants, Consultant shall charge the rates provided for on Pages C-2 through C-4 (dated 03-24-21) attached hereto and incorporated herein by reference.
2. Reimbursable Expenses
A. The following reimbursable expenses shall be deemed to be pre-authorized:
• Section 3.2.10.4 (Railroad Protective Liability Insurance): If, pursuant to Section
3.2.10.4 of the Agreement, the City directs Consultant to provide Railroad Protective Liability Insurance, the premium shall be reimbursable up to a maximum of $50,000 per year for up to two years (total of $100,000).
• Section 3.2.12 (Payment Bond): If, pursuant to Section 3.2.12 of the Agreement, the City determines that a payment bond is required by he DIR for the Services, the premium shall be reimbursable up to a reasonable amount which is documented to the satisfaction of the City’s Representative with at least three (3) written quotes from sureties.
B. Other Reimbursable Expenses
All other expenses shall be subject to the prior written approval of the City’s Representative, in his or her sole discretion, as provided for in Section 3.3.3 of the Agreement.
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March 24, 2021
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March 24, 2021
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March 24, 2021
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March 24, 2021
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1 st Amendment Added Rates:
Generate a 3-D model of all major arch components to evaluate constructability and details of constructability and provide City with an advanced mill order for a total not to exceed fee of $99,963.00 as detailed below.
Section 1.2.1 Constructability Review/Pre-Construction Phase Services and Deliverables performed by specialty subconsultant, Tensor Engineering: lump sum cost of $66,000.
Structural Engineering Manager: 40 hours @$240/hour = $9,600 Bridge Engineer: 80 hours @210/hour = $16,800
CADD Technician 2D: 240 hours @$110/hour = $26,400
CADD Technician 3D Modeling: 110 hours @$120/hr = $13,200 Administer, provide comments, work product evaluation and model/mill sheet contract incorporation: lump sum cost of $21,516
Specification development and plan sheet recommendations for alternate bridge superstructure construction method: lump sum cost of $12,447.
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2 nd Amendment Added Rates: Additional compensation total not exceed $2,933,461.04.
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3rd Amendment Added Rates: Additional compensation
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