CityWA
Posted
Sep 29, 2026
Nov 3, 2026
NE 18th Street Improvements from NE 97th Ave to NE 107th Ave
Work include 50,600 CY of roadway excavation incl. Haul; 200 CY of unsuitable foundation excavation incl. Haul; 13,300 TN of crushed surfacing base course; 5,900 TN of hma cl 1/2" pg 70-22; 250 SY of planing bituminous pavement; 400 LF of 4' wide infiltration trench with perforated pipe, 12 in diam; 910 LF of 6.5' wide infiltration trench with perforated pipe, 12 in diam; 13 EA of 18" stormfilter treatment catchbasin with 1 zpg cartridge; 37 EA of 48" storm manhole.
