Work at the intersection of S.E. Eighth Street and East Lake Sammamish Parkway will cause intermittent closures along the Parkway from 9 p.m. to 5 a.m. on Wednesday and Thursday night. It's hoped most drivers will heed detour signs and sidestep the closure, but those who must stay on the Parkway should expect delays to last 15 minutes. The plan is for work crews to close the road in 15 minute increments and then let traffic through on a one-lane basis. When the traffic backup is cleared, the road will close for another 15 minutes. That pattern will continue throughout the night, as needed.