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Multimodal Mobility Dashboard - South Puget Sound Region

Region executive summary

This dashboard includes a detailed multimodal mobility analysis of the Interstate 5 corridor between Federal Way and Olympia in the south Puget Sound region. The peak periods for the I-5 corridor in the south Puget Sound region are defined as 5 a.m. to 10 a.m. (morning peak) and 2 p.m. to 8 p.m. (evening peak).

2019 Highlights

  • Approximately 1,613.1 million person miles were traveled on the I-5 corridor in the South Puget Sound region in 2019, up 1% from 1,598.1 million person miles in 2018
  • Vehicle delay on the I-5 corridor in the South Puget Sound region increased 26% from 1.9 million hours in 2018 to 2.4 million hours in 2019
  • During the southbound morning commute in 2019, buses (0.3% of all vehicles) moved 7.2% of travelers on I-5 at Port of Tacoma Road
  • In 2019, WSDOT began construction on the state's first diverging diamond Interchange on I-5 at Marvin Road (State Route 510) in Lacey
  • WSDOT installed six ramp-meters on southbound I-5 between Olympia and Lacey in summer 2019
  • WSDOT expanded its high occupancy vehicle lane network at several locations on I-5 in Olympic Region in 2019

For additional details on the south Puget Sound region project highlights, visit 2019 Region Highlights

I-5 map image

Interstate 5

Interstate 5 is the primary commute and economic corridor connecting the central and south Puget Sound regions. WSDOT classifies the I-5 corridor between Olympia and Federal Way as a T-1 freight corridor, meaning that trucks carry more than 10 million tons of freight on this corridor annually. This corridor is served by transit buses and, between Federal Way and Tacoma, by high occupancy vehicle lanes. It is also paralleled by the Amtrak Cascades passenger rail line. Click the green bar below for more information on Interstate 5 multimodal mobility analysis.

Go to Interstate 5 Multimodal Mobility Analysis page
I-5 map image
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