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Region Of Boom

00000181-fa79-da89-a38d-fb7f2b600000Region of Boom is a reporting team at KUOW.We are tracking growth in metropolitan Seattle, which is being reshaped by the demands of a fast-growing technology sector led by Amazon. It’s a boom on a grand scale bestowing wealth and opportunity upon some and disruption and displacement upon others. Take a look at where development is happening now and make sure to tell us what is going on in your own neighborhood.Follow the ongoing discussion at #regionofboomThis project is edited by Carol Smith.

Your hunch is right: There were more crashes in late 2016

KUOW | By Carolyn Adolph

Published March 17, 2017 at 3:41 PM AKDT

This tanker truck rolled over last month when it braked to avoid hitting stopped cars ahead. I-5 through Seattle was closed for most of the day. But crews secured the propane tank, preventing an explosion.

The Washington State Department of Transportation has confirmed what drivers have been suspecting: Crashes are causing more traffic delays.

State crews cleared more than 15,000 traffic incidents in the final quarter of last year, 20 percent more than in 2015.

Most of the time they had the mess cleared in a few minutes. But about 200 crashes took several hours. And 11 incidents were so bad that workers needed nearly eight hours to get traffic moving again.

The state didn't say why traffic incidents are up. However, growth means more cars are driving more closely together.

Which was why the tanker truck overturned last month and shut down I-5 for most of the day. And remember how an overturned fish truck paralyzed downtown Seattle a few years ago?

Since then there's been pressure to get traffic moving more quickly. The state says the average time it takes to clear a road has dropped by 13 percent.