I-5 - Steilacoom-DuPont Rd. to Thorne Lane - Corridor Improvements - Project detours

Starting as early as March 12, 2021:

3 month detour for Thorne Lane on-ramp to southbound I-5

Thorne Lane to SB I-5 Detour Map

Temporary Thorne Lane off-and on-ramps through February 2021

  • Thorne Lane on-ramp to southbound Interstate 5 will close March 12, weather permitting, for 3 months.

Temporary ramp configuration at I-5/Thorne Lane interchange in Lakewood

 

Murray Road Detour Map to southbound Interstate 5

  • Thorne Lane on-ramp to southbound Interstate 5 will close March 12, weather permitting, for 3 months.

Detour Map for Thorne Lane to southbound I-5

Union Avenue Detour Map

Detour map for Union Avenue closure in Tillicum.

Westbound Union Avenue SW detour for roundabout construction at Militia Drive

Union Avenue and Berkeley Street detour at Militia Drive for roundabout construction

146th Street Southwest Detour Map

Detour map for 146th Street Southwest in Lakewood

 

Berkeley Street/Washington Avenue Intersection Detour Map

Detour map for Berkeley Street and Washington Avenue intersection closure.

 
Bicycle Detour Map

I-5 Steilacoom-DuPont Rd to Thorne Lane Corridor Improvements project bike detour