Region executive summary
Interstate 90 (I-90) in the Spokane area is one of the region’s key commute and economic corridors. Travel data shows an increase in traffic volumes due to economic growth. The peak periods for the I-90 corridor in the Spokane region are defined as 7 a.m. to 10 a.m. (morning peak) and 3 p.m. to 6 p.m. (evening peak).
- Approximately 265.7 million person miles were traveled on the I-90 corridor in Spokane in 2019, up 3% from 256.8 million person miles in 2018
- Vehicle delay on the I-90 corridor in Spokane increased 40% from 52,000 hours in 2018 to 73,000 hours in 2019
- During the westbound morning commute in 2019, buses (0.2% of all vehicles)
- Average and reliable peak travel times for the 7.5- mile trip from Division Street to Argonne Road on I-90 held steady from 2018 to 2019 at 11 minutes and 16 minutes, respectively
- In 2019, WSDOT activated a ramp meter at the eastbound US 195 on-ramp to I-90. This was the agency's first ramp meter in Spokane
- WSDOT updated and replaced aging data collection devices in 2019
For additional details on the Spokane region project highlights, visit
2019 Region Highlights
Interstate 90 (I-90) in the Spokane area is one of the region’s key commute and economic corridors. Over 250 million person miles were traveled on I-90 between Division Street and Argonne Road in 2017. Click the green bar below for more information on Interstate 90 multimodal mobility analysis.