BNSF emergency railroad repairs at the Blackburn and Old Highway 99 crossing will cause up to 1-hour delays from August 17-21, 7 a.m. to 7 p.m., according to a Mount Vernon government alert.
Detour routes will be in place during the repairs, which are scheduled to take place Monday through Friday. The City of Mount Vernon and BNSF announced the closure on August 13, 2026, with work beginning August 17, 2026.