Prepare for ramp closures at state Route 900
December 21, 2010
The westbound Interstate 90 on-ramp — for traffic headed south on state Route 900 — closes from 9 p.m. – 5 a.m. Dec. 27-29 as crews install girders to support a trail connector.
Drivers should follow signs along the detour route to the Lakemont Boulevard interchange.
Crews poured concrete for the last piers in the trail connector at Interstate 90 and state Route 900 in mid-November. The project should be completed in April.
The completion marks a significant milestone for the project. The concrete-and-steel supports constitute about 30 percent of the total construction contract. Each pier is about 140 feet to 160 feet deep, and contains more than 18 tons of steel and 190 cubic yards of concrete.
The completed connector is to feature a 12-foot-wide pedestrian bridge across the westbound interstate on-ramps, plus a 10-foot-wide pedestrian crossing on the existing state Route 900 overpass.
The city awarded the $4.4 million construction contract to C. A. Carey Corp. in June. The total project price tag is about $6 million.
The project relies on grants — including $400,000 from Sound Transit — to offset most of the project cost. The city contributed about $341,000 toward the link.