Traffic delay nearly doubles on I-5 and I-405

There are over 170,000 reasons why delay on Interstate 5 almost doubled in the past five years:  about 170,000 new jobs, many located in the region’s aerospace and technology centers, were added to the daily commute.

The data was presented to the region’s Transportation Policy Board at the Puget Sound Regional Council today.

Overall daily hours of delay (Monday-Friday) on the region’s major highways increased by over 10,000 hours to 32,700 hours from 2010 through 2014:  A 52 percent jump.

People commuting on I-5 and I-405 experienced the biggest increases in delay.


Delay on I-5 from Fife through Everett was up 92 percent over the past five years.

Delay on I-5 was up 92 percent from Fife through Everett.

–  Delay through Seattle was up 140 percent at 65th Street Northeast, 290 percent at 520, and 150 percent at Seneca Street)

–  Delay spiked by 174 percent on I-5  at Southcenter Hill.

–  Delay increased about 80 percent I-5 in Everett at Highway 2.


Delay the length of I-405 from Tukwila to Lynnwood was up 94 percent over the last five years.

Delay on I-405 was up 94 percent.

–  Through Kirkland delay was up by 237 percent.  (Construction activity was a factor.)

–   People on I-405 through Bellevue experienced jumps in delay of 73 to 87 percent.

–   On I-405 through Renton, time people spent in delays increased by 128 percent.

Delay was up 100 percent on I-90 between Issaquah and Seattle on I-90.

Tolling produced a different result on State Route 520, where delay was down 68 percent.

Kitsap experienced few changes.  There were modest increases in delay on I-5 at Joint Base Lewis McCord.

A lot of people say traffic has really gotten worse in the past year.  Overall, there was a combined 25 percent increase in delay from 2013 to 2014 on the major highways measured by PSRC.   View the presentation.

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