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Underdrain System Installation

Open

State & Local

Contract Overview

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

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This subcontract for Underdrain System Installation involves providing specialized drainage services for prime contractors on Caltrans District 4 highway projects in San Jose. The scope of work includes the excavation of existing drainage lines, removal of degraded piping, and the installation of new underdrain pipes complete with necessary bedding and backfill. All operations must be performed using appropriate trenching equipment and drainage piping that adheres strictly to Caltrans standards. The selected contractor is responsible for ensuring full compliance with all Caltrans engineering, safety, and environmental regulations to deliver a fully restored and functional underdrain system. This project falls under NAICS code 238910 and was posted on January 6, 2026, for work within the Bay Area/Oakland jurisdiction.

General Info

Subcontract for installing Caltrans standard underdrain systems on San Jose highway projects.

Agency

California → Caltrans, District 4 - Bay Area/Oakland

NAICS

238910 - Site Preparation Contractors

Place of Performance

San Jose, CA

Set-Aside

NONE

Documents

This scope was carved out of 4X850_NOE.

The full solicitation package (1 document), including the RFP, is on the prime solicitation, not on this scope.

View the prime solicitation

Repair Underdrain System- 4X850/0426000159

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Timeline

PostedJan 6

subcontract

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Organization & Contact Information

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AgencyCalifornia → Caltrans, District 4 - Bay Area/Oakland

ContactsNo contacts available

OfficeN/A

Organization / Agency

California → Caltrans, District 4 - Bay Area/Oakland

Office AddressN/A

ContactsNo contact information available

Full Description

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Performs removal and installation of underdrain systems for prime contractors on Caltrans District 4 highway projects. Excavates existing drainage lines, removes degraded piping, trenches, and installs new underdrain pipes with bedding and backfill. Uses trenching equipment and drainage piping per Caltrans standards. Complies with Caltrans engineering, safety, and environmental standards. Delivers a fully restored and functional underdrain system.

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