City of Sacramento
City Council - 2PM Report
915 I Street Sacramento, CA 95814
www.cityofsacramento.org
File ID: 2026-00411 2/3/2026
[Contract] Approval of Supplemental Specialized Consulting Services Contract File ID: 2026-00411
Location: Citywide
Recommendation: Pass a Motion authorizing the City Attorney or designee to execute a supplemental contract with Exponent, Inc., for an increase of $50,000 for a new not-to-exceed amount of $200,000, for specialized consulting services.
Contact: Katherine Underwood, Senior Deputy City Attorney, (916) 808-5346, [email protected]; Andrea Velasquez, Supervising Deputy City Attorney, (916) 808-5346, [email protected]; Office of the City Attorney Presenter: None
Attachments:
1-Description/Analysis
2-Third Supplemental Legal Services Agreement
Description/Analysis
Issue Detail: The City of Sacramento contracted with Mountain Methods, Inc. to construct the Del Rio Multi-Use Trail Project. This is an approximate 5-mile-long trail which includes construction of the Land Park Overpass that spans Interstate 5 in the Land Park neighborhood. During construction of the Land Park Overpass it was brought to the attention of staff in the Public Works Department there were possible deficiencies with the materials used during the construction of the overpass. The City Attorney’s Office was asked to investigate and retained Exponent, Inc., to assist with conducting an analysis to determine if the materials provided were defective and not in conformance with the standards and specifications required under the terms of the construction contract.
Exponent is a multidisciplinary organization that provides engineering, scientific, environmental, and health consulting services. Technical expertise, such as that possessed by Exponent, is necessary when conducting investigations into complex construction matters such as those presented by the Del Rio Multi-Use Trail Project. Exponent was retained to perform an inspection and conduct an independent analysis of the quality and integrity of the materials used to construct the Land Park Overpass. The City Attorney’s Office is seeking Council approval of the supplemental agreement in
File ID: 2026-00411 2/3/2026
an amount of $50,000, for additional services associated with the Del Rio Multi-Use Trail Project. The revised not-to-exceed amount of the agreement will be increased to $200,000.
Policy Considerations: City Council approval is required for this specialized consulting services agreement to ensure the completion of the City’s investigation into this matter.
Economic Impacts: Not applicable.
Environmental Considerations: Contracting for expert services is an administrative activity that will not result in direct or indirect physical changes in the environment and is not a project subject to California Environmental Quality Act (CEQA) review. CEQA Guidelines section 15378(b)(5).
Sustainability: Not applicable.
Commission/Committee Action: Not applicable.
Rationale for Recommendation: Authorization of the contract with Exponent, Inc., is necessary for completion of the City’s investigation into construction defects of the Land Park Overpass. This firm specializes in this area and the City Attorney’s Office has determined that Exponent has the required expertise to assist the City of Sacramento’s investigation into this matter.
Financial Considerations: There is sufficient funding within the State and Federal Grant Match Project (T15007200) to complete the transfer of $50,000 (General Fund-Fund 1001) to the Del Rio Trail Project (K15165100).
Local Business Enterprise (LBE): Exponent, Inc., was procured by the City via an alternate selection process, therefore, the LBE requirements do not apply.
SUPPLEMENTAL AGREEMENT
Project Title and Job Number: Agreement for Specialized Consulting Services/Litigation Date: 1/12/2026 Purchase Order# 74863 Supplemental Agreement No.: 3
The City of Sacramento ("City") and Exponent. Inc. ("Contractor"), as parties to that certain Agreement for Specialized Consulting Services Investigation/Litigation designated as Purchase Order# 74863 including any and all prior supplemental agreements modifying the agreement (the agreement and supplemental agreements are hereafter collectively referred to as the "Agreement"), hereby supplement and modify the Agreement as follows:
1. The scope of Services specified in Exhibit A of the Agreement is amended as follows:
The parties have determined further investigation into the work performed by Mountain Methods, Inc. and/or one or more of its subcontractors is warranted. This supplemental contract is intended to capture additional necessary investigation work and possible forensic testing.
2. The term of this agreement is amended as follows:
There is no change in the term of the agreement.
3. In consideration of the additional and/or revised services described in section 1 and 2, above, the maximum not-to exceed amount that is specified in Exhibit B of the Agreement for payment of Contractor's fees and expenses is increased by $50,000, and the Agreement's maximum not-to-exceed amount is amended as follows:
Agreement's original not-to-exceed amount: $25,000
Net change by previous supplemental agreements: $125,000 Not-to-exceed amount prior to this supplemental agreement: $150,000 Increase by this supplemental agreement: $50,000
New not-to exceed amount including all supplemental agreements: $200,000
4. Contractor agrees that the amount of increase or decrease in the not-to-exceed amount specified in section 2, above, shall constitute full compensation for the additional and/or revised services specified in section 1, above, and shall fully compensate Contractor for any and all direct and indirect costs that may be incurred by Contractor in connection with such additional and/or revised services, including costs associated with any changes and/or delays in work schedules or in the performance of other services or work by Contractor.
5. Contractor warrants and represents that the person or persons executing this supplemental agreement on behalf of Contractor has or have been duly authorized by Contractor to sign this supplemental agreement and bind Contractor to the terms hereof.
6. Except as specifically revised herein, all terms and conditions of the Agreement shall remain in full force and effect, and Contractor shall perform all of the services, duties, obligations, and conditions required under the Agreement, as supplemented and modified by this supplemental agreement.
Approved By:
Ryan Moore, City of Sacramento
Approved by Exponent, Inc.:
Mat Radlinski (Jan 12, 202615:18:24 PST)
Mat Radlinski, Principal Engineer
Approved As To Form By:
}{� Katherine Underwood (Jan 12, 202615:24:39 PST)
Katherine Underwood,
Senior Deputy City Attorney