Basin 18C Drainage Improvements & West Mercer Way Culvert Replacements

Description: The City of Mercer Island is soliciting bids from qualified contractors for construction services associated with Basin 18C drainage improvements and West Mercer Way culvert replacements in Mercer Island, Washington. The work includes installing a new catch basin and pipe at West Mercer Way and SE 32nd Street, replacing failing culverts at multiple West Mercer Way locations, and using ductile iron pipe or CIPP lining where specified. The project was scheduled for advertisement in early August 2026, with bids due August 24, 2026 at 4:00 p.m. Pacific Time, and it is a construction procurement rather than a grant program.