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Geotechnical and Subsurface Investigation Services

Active

State & Local

Response Deadline08/26/2026, 05:00:00 PM UTC

Contract Overview

Solicitation details, issuing organization, response deadlines, documents, and interested companies for this government contract opportunity.

General Info

Agency

California → Stanislaus County Department of Public WorksView Agency

NAICS

541620 - Environmental Consulting ServicesView NAICS

Place of Performance

Modesto, CA, 95354, USA

Set-Aside

NONE

Documents

This scope was carved out of 20260713041.

The full solicitation package (5 documents), including the RFP, is on the prime solicitation, not on this scope.

View the prime solicitation

Milton Road Over Hoods Creek Bridge Replacement

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Timeline

PostedJul 14

subcontract

Response DeadlineAug 26

Submission deadline

Response Deadline

08/26/2026, 05:00:00 PM UTCin 10 days

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Organization & Contact Information

AgencyCalifornia → Stanislaus County Department of Public Works

ContactsNo contacts available

OfficeN/A

Organization / Agency

California → Stanislaus County Department of Public Works

View Agency Profile

Office AddressN/A

ContactsNo contact information available

Full Description

Conduct subsurface investigations, soil testing, and produce foundation reports compliant with Caltrans and federal regulations.

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Solicitation # 20260713041

The project concerns the replacement of the existing twelve-foot, six-span Milton Road Bridge over Hoods Creek in Modesto, California, with a new two-lane, two-span cast-in-place slab bridge on the same alignment. Work includes the demolition of the old structure, construction of new abutments and a center pier using pile driving, excavation, placement of rock slope protection, vegetation removal, roadway reconstruction of the approaches, installation of a temporary shoe fly road to maintain traffic, and a temporary creek diversion system to manage water flow during construction. All work must comply with Caltrans Standard Specifications, County Improvement Specifications, and relevant federal and state environmental regulations, including those enforced by the Central Valley Water Board. The contractor is required to obtain permits under the Clean Water Act, including Section 401 Certification and Section 404 Permit, as well as a Streambed Alteration Agreement. Noise levels must not exceed 86 dBA at 50 feet between 9:00 p.m. and 6:00 a.m., and light-based warning signals are preferred. The contractor must employ a qualified superintendent with full authority over on-site operations and perform at least 30% of the work using its own workforce. Disadvantaged Business Enterprise participation is mandated under 49 CFR Part 26, and subcontractor use requires prior written approval. The solicitation, numbered 20260713041, is issued by the Stanislaus County Department of Public Works with a response deadline of August 26, 2026. Proposals must be submitted in two sealed envelopes—one for the technical proposal and one for the fee schedule—with four hard copies and one electronic copy in PDF format. The technical proposal is limited to 30 pages, excluding resumes, cover letters, and attachments, with individual resumes capped at one page per standard team member and two pages per principal, up to three principals. Proposals are to be delivered to Gary Mohler at 1716 Morgan Road, Modesto, CA 95358, with electronic submissions accepted via PlanetBids. The contract will be executed under federal-aid provisions, subject to 2 CFR 200, Davis-Bacon Act wage requirements, and prompt payment compliance. No contract value is specified as pricing is to be submitted electronically through PlanetBids, but line items for materials such as structural steel, concrete, reinforcing bar, prestressed concrete piles, and traffic striping are listed

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