Transit-friendly reporter Mike Lindblom at the Seattle Times has a detailed piece($) on the impending Highway 99 closure mess, focusing particularly on how bus riders will be impacted, and subtly pointing out that the bus riders might even outnumber the car drivers in the affected corridor. Five routes will be detoured Friday night through Wednesday morning for the Highway 99 replacement work. Lindblom gives a good run-down on where the viaduct and Aurora will be shut down.
I was on the E Line just this past Tuesday, heading south, and got to see how much of a bottleneck the highway work has already created, before this major closure. For about a third of a mile through the construction zone, there did not appear to be a functional BAT lane, causing the bus to crawl in general traffic for about 10 minutes.
Thanks to Lindblom for pointing out that the bus riders are roughly as numerous as the SOV drivers using this corridor.