State and Anne Arundel County police are investigating whether vandalism or a faulty bridge on U.S. 50 are responsible for the rocks that hit three tractor-trailers in separate incidents this week.
Bennie Lee Hall, 51, of Houlton, Maine, received minor cuts Tuesday night when a large rock hit his tractor-trailer in the westbound lanes near Sandy Point State Park, state police said. The rock shattered Mr. Hall's right side view mirror and window at 10:25 p.m., said Trooper Leon Foreman.
That incident was the third since Monday night, when two other truck drivers reported being hit by rocks near the same overpass between 9:50 p.m. and 9:58 p.m. police said.
Neither Ronald Ferrara, 30, of Cambridge, nor Ronnie Willey, 27, of Delanco, N.J., was injured, police said. The windows on both trucks were shattered.
Trooper Foreman said detectives from the Annapolis barracks are working with county police and the state Department of Transportation to find out what happened.
"We have to make sure the bridge is not falling apart," he said.
County police are investigating an April 3 rock-throwing incident that killed Kevin Gallagher, 38, of Deale. Mr. Gallagher lost control of his truck after a rock crashed through his windshield on Bay Front Road.
No arrests have been made in that case.