SR 18 shifted into new, wider configuration to improve traffic flow, safety near I-90/SR 18 interchange
Project expected to wrap up construction in 2026
SNOQUALMIE – Eastbound and westbound State Route 18 reopened Monday, Oct. 20, with two lanes in each direction between Interstate 90 and Deep Creek, ushering in improved traffic flow and safety along a 2-mile stretch at the northern end of the SR 18 corridor.