Several elevated ramps will be temporarily closed on the Baltimore Beltway and the “Triple Bridges” interchange on I-70 in Woodlawn for four separate nights in August and September for inspections. The first closure is Wednesday from 10 p.m. to 5 a.m. The Maryland Department of Transportation State Highway Administration advises drivers on I-70 and I-695 and near the interchange to plan for extra travel time and detours. All ramp closure and detour dates are weather-permitting, MDOT SHA said.