Substation Retrofits

The City of Tacoma is soliciting bids for a substation retrofit project that requires the installation of deep vertical grounding electrodes using ground‑enhancement material (GEM) at multiple utility sites throughout Pierce County. The contractor must provide specialized drilling equipment, qualified crews, and complete all work in coordination with Tacoma Power while adhering to safety, permitting, prevailing‑wage, and insurance requirements. The contract is valued at approximately $150,000 and runs through the end of 2026. • Install a total of 32 ground‑rod holes (both driven and drilled) with depths ranging from 16 ft to 80 ft, using copper rods and GEM back‑fill as specified. • Supply and operate vertical drilling rigs, grout plants, and related equipment; provide as‑built drawings and quality‑assurance documentation. • Meet mandatory pre‑bid site‑visit, warranty (minimum 3‑year labor), and insurance requirements; contract term ends 31 Dec 2026.