Drivers should expect delays on State Route 900 in Issaquah next week as crews finish installing a one-mile-long waterline next to the highway.

Crews will reduce SR 900 to one-way alternating traffic between Newport Way and Talus Drive from 8 p.m. to 5 a.m. Monday through Thursday nights, July 27-30.

Crews will also reduce Talus Drive at SR 900 to a single lane of alternating traffic from 8 p.m. to 5 a.m. Monday through Thursday nights while crews install the waterline beneath the Talus Drive Intersection.

Daytime closures through the project area will also continue next week as crews pave and install new drainage and electrical systems.

Crews will reduce SR 900 to one-way alternating traffic between Newport Way and Talus Drive from 9 a.m. to 2 p.m. Monday through Friday.

Crews are widening SR 900 from Newport Way to SE 78th Street in Issaquah.

For more information, visit www.wsdot.wa.gov/Projects/SR900/SE78th_Issaquah.