Request for Proposals for Professional Civil Engineering and Environmental Services for the Larkspur Street over San Lorenzo River Bridge Replacement Project

The County of Santa Cruz, Department of Community Development & Infrastructure is seeking proposals from qualified consultants for Professional Civil Engineering and Environmental Services for the Larkspur Street over San Lorenzo River Bridge Replacement Project (Bridge No. 36C-0068) in Santa Cruz County.

The existing bridge, constructed in 1957, is a 133-foot-long, three span, precast, prestressed four girder bridge on two reinforced concrete pier walls with spread footings and reinforced seat abutments. With a total width of 15’ 4”, it provides a single 12’ 2” travel lane with concrete curbs and timber railings on both sides of the structure. A narrow timber walkway is located on the downstream side of the deck. The bridge piers are considered to be scour critical with exposed spread footings and undermining. There is a sharp turn on the eastern approach roadway with poor site visibility. The bridge currently supports suspended water and gas lines, while telecommunication and power lines run directly overhead. The existing bridge does not meet current design standards. 

The proposed project would include replacing and demolishing the existing structurally obsolete bridge with a two-lane, single span, cast-in-place, post tensioned concrete box girder bridge that would be designed to meet current safety, seismic, and scour requirements in accordance with current American Association of State Highway and Transportation Officials (AASHTO) or Caltrans design standards.

The bridge is listed in the Highway Bridge Program (HBP) and will be funded in part through the Federal Highway Administration (FHWA) in cooperation with the California Department of Transportation (Caltrans) and the County.

Consulting firm services must comply with the latest requirements of the Caltrans Local Assistance Procedures Manual (LAPM), Federal, State, and local regulations.

This RFP, and any future Addenda, if issued, will be posted on the OpenGov Procurement website at https://procurement.opengov.com/portal/santacruzcounty.

Project Details

• Reference ID: P40576
• Department: Public Works / Roads
• Department Head: Steve Wiesner (Director or Roads Division)

Important Dates

• Questions Due: 2026-06-04T00:00:00.000Z

Evaluation Criteria

• Scope of Work or Project Details —

  The Consultant’s attention is directed to Attachments, "RFP - Larkspur Street over San Lorenzo River Bridge Replacement Project".

• Questions —

  Any questions related to this RFP shall be sent through the online e-Procurement Portal at https://procurement.opengov.com/portal/santacruzcounty.

  DO NOT Email inquiries.

  Questions shall be submitted before deadlines noted in the timeline.

• OpenGov Instructions —

  This RFP, and any future Addenda, if issued, will be posted on the OpenGov website at https://procurement.opengov.com/portal/santacruzcounty .

  Prospective consultants must create a FREE account with OpenGov Procurement. To get started go to https://procurement.opengov.com/signup and sign up for an account. You’ll receive an email to activate your account.

  Then subscribe to our bids by navigating to https://procurement.opengov.com/portal/santacruzcounty and clicking the green subscribe button.

  For more information about how to register, please see our the help file at https://help.procurement.opengov.com/en/articles/2482165-vendor-registration.

  It shall be the Consultant’s responsibility to check the OpenGov Procurement website to obtain any addenda that may be issued.

Submission Requirements

• Confirm you have read through the entire RFP and that you meet all the Proposal requirements.* (required)
• Proposal Submittal* (required) —

  Please upload your complete proposal here. Submissions must be in PDF format. Proposals must include any signed addendums, if applicable.

  DO NOT upload the Cost Proposal here.

• Confirm that your Cost Proposal is NOT attached or stated anywhere in the body of the Proposal.* (required) —

  The Cost Proposal is confidential and will remain sealed until all project proposals have been reviewed, and the most qualified consultant has been selected.

• Did you mail three (3) hard copies of your Proposal?* (required) —

  The Consultant will mail three (3) hard copies of the Proposal in a sealed envelope clearly marked with the Consultant’s name and labeled “Proposal for Request for Proposals for Professional Civil Engineering and Environmental Services for the Larkspur Street over San Lorenzo River Bridge Replacement Project”.

  Proposal will be submitted by the closing day to:

  County of Santa Cruz Department of Community Development & Infrastructure
  Attention: Amber Myer
  701 Ocean Street, Room 410
  Santa Cruz, CA 95060

• Cost Proposal* (required) —

  Please upload your Cost Proposal here as a password-protected PDF. Upon selection of the Consultant, the County will request the password to unseal this file.

• Did you mail one (1) hard copy of the Cost Proposal (in a seperate and sealed envelope).* (required) —

  The Consultant will submit one (1) hard copy of the Cost Proposal in a separate sealed envelope clearly marked with the Consultant’s name and labeled “Cost Proposal for Request for Proposals for Professional Civil Engineering and Environmental Services for the Larkspur Street over San Lorenzo River Bridge Replacement Project”. 

  Proposals will be submitted by the closing day to:

  County of Santa Cruz Department of Community Development & Infrastructure
  Attention: Amber Myer701 Ocean Street, Room 410
  Santa Cruz, CA 95060

• County Project Number (required)
• Funding Agency Project Identifier (required) —

  For example, DAF, BRLO, PW, HSIPL