I-5 - Steilacoom-DuPont Rd. to Thorne Lane - Corridor Improvements - Noise wall

Three noise walls will be constructed as part of the I-5 Steilacoom-DuPont Road to Thorne Lane Corridor Improvements project that widens I-5 and builds new bridge structures at the I-5 interchanges of Thorne Lane and Berkeley Street.

The approximate locations of the noise walls are:

  • Northbound I-5 approaching 41st Division Drive
  • Northbound I-5 From 41st Division Drive to Berkeley Street
  • Southbound I-5 adjacent to the Thorne Lane interchange

The first section of noise wall being built is located adjacent to northbound I-5 from the 41st Division Drive on-ramp to northbound I-5, to just north of Magnolia Boulevard and Sycamore Lane in the New Hillside community on JBLM. A second section will be built adjacent to the northbound I-5 exit to 41st Division Drive. To do the work, crews will use heavy machinery and trucks to remove existing fence, pavement, vegetation and install temporary fencing. 

Noise walls along northbound I-5 near JBLM


  • Early February- prepare site for temporary fence installation.
  • March - noise wall construction begins and will last through 2019.
  • Crews will return in 2021 to complete final landscaping and fencing.
  • Noise wall construction hours: Weekdays, 7 a.m. to 5 p.m.  Additional hauling of materials and paving may occur outside of these hours.