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Tunnel Stabilization and Grouting

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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 Tunnel Stabilization and Grouting involves the permanent stabilization of approximately 1,000 linear feet of dual underground cooling tunnels for projects within the San Diego Unified Port District. The scope of work focuses on filling and grouting decommissioned tunnels located 20 feet below ground using flowable fill and grout pumps to prevent ground subsidence. The project is located in San Diego, California, and requires the contractor to hold Confined Space Entry certification to ensure safety during operations. The ultimate goal of the contract is the delivery of a fully stabilized and filled tunnel network under NAICS code 238910.

General Info

Stabilize 1,000 feet of San Diego cooling tunnels using flowable fill and grouting.

Agency

California → San Diego Unified Port District

NAICS

238910 - Site Preparation Contractors

Place of Performance

San Diego, CA, 92113

Set-Aside

NONE

Documents

This scope was carved out of 2025-NOD-0146.

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

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Pier 1 N. Drydock, Associated Real Estate Agreements & Removal of Cooling Tunnels

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Timeline

PostedJul 7

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Organization & Contact Information

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AgencyCalifornia → San Diego Unified Port District

ContactsNo contacts available

OfficeN/A

Organization / Agency

California → San Diego Unified Port District

Office AddressN/A

ContactsNo contact information available

Full Description

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Performs permanent stabilization of approximately 1,000 LF of dual underground cooling tunnels for prime contractors on San Diego Unified Port District projects. Fills and grouts decommissioned tunnels 20 ft below ground using grout pumps and flowable fill to prevent subsidence. Requires Confined Space Entry (CSE) certification. Delivers a stabilized and filled tunnel network.

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