I have seen and been involved in several near-misses with the large dump truck trailer rigs on May Valley Rd., and I too live in fear of someone getting killed on our little rural road. Some obey the speed limit, some do not. Some cut corners, some do not. Many use their engine compression brakes, ruining the quiet rural atmosphere. 

What the article leaves out is that transit through old town Issaquah and south down Issaquah Hobart Rd. during rush hour is a daily nightmare, far worse than downtown Seattle. I do both daily on my commute. It's common to go 5-10 cycles of stop-and-go to get though the intersection of 2nd and IH Rd. Then it's creep and crawl south.

The lights at IH/May Valley Rd. and at IH/Cedar Grove Rd cause the PM congestion. Replacing them with free-flow traffic circles would alleviate much of that, relatively cheaply.  Any Issaquah bypass will fail until that is done.

The I-90/Hwy 18 interchange also needs to be fixed to reduce short-cutters through Issaquah.