Recently, the problems encountered by cyclists riding on E. Marginal Way/Alaskan Way S. between S. Massachusetts and S. Atlantic Streets reached a head with wrong way drivers and poorly designed suggested bicycle detours.
Last month, October, Broch Bender of Washington State Department of Transportation addressed these concerns and led a reconfiguration of E. Marginal Way/Alaskan in this area. In my opinion, this has made a big difference.
Approaching Massachusetts, a rider still has a choice to cross at a marked detour and use the west shoulder to ride northbound against traffic. Many riders did this as it was preferable to fighting traffic behind them (including trucks heading to one of the several Port of Seattle entrances in the area) and not having the skills to take the lane. Now one can ride past the suggested bike detour crossing and use the left turn only lane to S. Massachusetts and connect to the bike/ped path along the west side of Alaskan. Even though one still has to ride across the intersection, a cyclist is more visible to traffic and the cyclist doesn’t have to feel pressured to make a left turn due to traffic approaching from or stopped behind.

Looking northbound at left turn only lane/thru lane at S. Massachusetts St.
While the new barriers do help protect users of the more southerly bike/ped path, the frequent flooding of the path can render the jerry-rigged path useless. However, I have yet to see a wrong-way rider or a pedestrian on the street side of the barrier. When the path floods I have noticed more cyclists heading south use the street instead, and pedestrians pick their way as best they can along the fence line (barriers are seen in the above image, left of center).
The other improvement made was adding two northbound lanes north of S. Massachusetts. When the Port entrance at S. Atlantic is unusually busy, both lanes can be put into service so that trucks don’t stack up and block the (formerly) one northbound lane. With one right turn only lane and in normal traffic, and one left turn only lane open, cyclists can now take the left turn only lane to access the new bike/ped path north of S. Atlantic. There have been, to my knowledge, no more wrong way drivers. It would be nice if the stoplight at the Alaskan/Atlantic intersection recognized cyclists however. I have reported this with no change to date.

Riding in left turn only lane, traffic turning right can pass on the right. Leftside left turn lane can be opened if Port Traffic is heavier than usual.
WSDOT deserves praise for this change. But it’s not permanent – ongoing construction ensures no consistency in the area. Maybe this can be a learning experience for WSDOT and integration of modes of transportation other than cars and trucks can be considered before implementation of detours and new street configurations. In any case, someone will be watching.