# Maintenance Of Tunnels And Subsurface Structures (PSC Z1LC)

Canonical: https://abierto.us/psc/z1lc

Federal contract opportunities under product and service code Z1LC. 2 opportunities in the window, 0 open now.

## Recent (2 in all)

- July 21, 2026: Eisenhower Lock Tunnel Pressure Grout Repairs (6923G526Q0069), award notice, awarded to Glenchoice Management LLC. https://abierto.us/opportunities/6923g526q0069
- July 16, 2026: CTX Steam Tunnel Repairs (36C25726Q0687), combined synopsis and solicitation, awarded to Innovators Transportation LLC. https://abierto.us/opportunities/36c25726q0687

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Sources: SAM.gov Contract Opportunities extract and USAspending.gov award data. Cite https://abierto.us/psc/z1lc.