Sound Transit Biddingo #RTA/RP 0169-26

Link Light Rail stray-current testing and corrosion-management services

Sound Transit is seeking a contractor for five years of Link Light Rail stray-current testing and corrosion-management work, including the I-90 Floating Bridge. - Government buyer: Central Puget Sound Regional Transit Authority (Sound Transit); no sub-agency or office is identified. - OEMs and vendors: No OEMs, product vendors, or named contractors are identified. WSDOT is identified as a coordination partner for bridge corrosion monitoring, not as a vendor. - Services requested: - Annual wet and dry stray-current testing along at-grade, tunnel, and elevated portions of the Link Light Rail alignment, with reports due within 30 days after testing. - I-90 Floating Bridge corrosion-protection monitoring, maintenance, and testing, including twice-annual inspections and testing, data monitoring with Sound Transit and WSDOT, troubleshooting, and health reports. - General corrosion-management and engineering support, including testing analysis, recommendations, and possible task-order work for future extensions or emergent bridge needs. - Notable requirements: The contractor must provide personnel, materials, equipment, permits, and reports. A baseline test and bridge health report are due within 120 days after notice to proceed; where the specified 24-hour response applies, on-site response is required within four hours. - Products and quantities: No products, part numbers, or fixed service quantities are specified; testing and inspection frequencies are stated in the service descriptions.

Description

Sound Transit is requesting proposals from firms to provide personnel, materials, equipment, and reports for annual wet and dry stray current testing on the Link Light Rail alignment. The work also includes general corrosion management and maintenance of I-90 Floating Bridge corrosion protection systems. The RFP is available through Sound Transit’s Biddingo vendor portal. Proposals are due December 1, 2026, at 10:00 AM PT.

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