SR 4 will have single-lane closures weekdays from 7:30 a.m. to 5 p.m. between 50th Avenue (milepost 56.4) and 42nd Avenue (milepost 57.2) through Sept. 18 for buried gas main line extension work.
WSDOT warns drivers to slow down, stay focused, and follow flaggers through the work zone. The closure affects travel in both directions of SR 4 during weekday work hours.