Sweetwater Road at Interstate 805 (I-805) will be closed intermittently overnight through August 29 to accommodate work to widen the freeway bridge. The sporadic closures will be between the hours of 9 p.m. and 5 a.m. Motorists are urged to avoid the area or take alternative routes. Motorists will be detoured around Sweetwater Road at I-805 during nighttime closures.