State Avenue construction will cause lane closures this week at Plum Street

Drivers can expect lane closures and delays starting Monday at State Avenue and Plum Street in Olympia.

The closures are expected to last about a week and are part of a paving project along State Avenue. The city reports that at least one lane of travel will remain open at all times on both roads.

The entire project will upgrade a nine-block stretch of State Avenue between Central Street and East Bay Drive. Crews are building safety features for pedestrians as well as installing filtration units to treat stormwater runoff from the road. Crews will also plant 29 new trees.

The project is slated to be completed this spring.

Stormwater runoff from State Avenue has been draining untreated into Moxlie Creek, which empties directly into Budd Inlet’s East Bay. The new filtration system is expected to reduce pollutants up to 93 percent in some cases, according to the city.