Drivers may encounter congestion on the West Seattle Bridge on Thursday, April 22, while a film crew works from noon to 3 p.m. and again from 11 p.m. to 1 a.m.

The filming on the WS Bridge is for a TV mini-series filming in town.

There will be “rolling slowdowns” on the bridge from First Avenue South to Southwest Avalon Way in both the eastbound and westbound directions.

Filming is also scheduled Thursday for the Alaskan Way Viaduct from East Marginal Way South to the Western Avenue off-ramp, from 8 p.m. to 10 p.m. The filming will affect only northbound traffic on the viaduct.