Public Works Administration
6300 Southcenter Blvd.
Tukwila, WA 98188
Phone: 206 433-0179
Fax: 206 431-3665
S 149th St & S 150th St Water Main Replacement
Design Phase: The existing 6” caste iron water main along S 149th St and along S 150th St is undersized and has reached its useful life. The looped water main along 150th will be replaced from Macadam Rd to the Cul-de-sac. The semi-looped line along 149th will be converted to a fully looped line and will be replaced from Macadam Rd to 57th Ave S. The improvements will see the installation of more than 1,200 feet of 12” ductile iron water main, improving water quality and fire flow availability. Along with various minor improvements, both streets will be fully repaved at the conclusion of the project. Construction likely to start in Q1 of 2025, but estimate will be updated if we are able to move the date sooner.
- Adib Altallal, Project Manager – (206) 240-0633