Due to Thursday’s collapse of the north span of the bridge over the Skagut River, both directions of I-5 closed in Skagit County will be closed for the foreseeable future.

WSDOT is warning all drivers to avoid the area if possible or to find alternative routes this holiday weekend.

The interstate is closed in both directions in Skagit County south of Burlington. Traffic is being diverted off southbound I-5 at Exit 230.

On southbound I-5 at Chuckanut (exit 231), a signed detour will take traffic west on state Route 20, south on Best Road, east on Fir Island Road and back to the freeway at SR 534.

Southbound I-5 is closed at George Hopper Road. A detour will take traffic east on George Hopper, south on Riverside Drive and west on SR 528 back to the freeway.

Northbound I-5 has a signed detour directing traffic off at SR 534, then west on Fir Island Road, north on Best Road and east on SR 20 back to I-5. There will be no lanes closed at SR 534.

Northbound I-5 is closed at SR 538 and traffic is detoured east on SR 538, north on Riverside Drive, west on George Hopper Road and back to I-5.

For an alternate route, take eastbound SR 20, then south on S. Burlington Blvd. and west on E. College Way (SR 538) to southbound I-5.

Northbound I-5 traffic must exit at Exit 227. An alternate route is east to E. College Way to northbound Riverside Drive-S. Burlington Boulevard, then west on George Hopper Road to I-5.

To use SR 9 as an alternate northbound route, bypassing Mount Vernon, take Exit 221 at SR 534 east to northbound SR 9 to SR 20 westbound to I-5.