The end is in sight for two bridge construction projects in Warren County. Beersheba Street’s new bridge is on schedule for completion, while the old Ernest Crouch Memorial Bridge hit the water Wednesday.Tennessee Valley Explosives, a drilling and blasting company from Cleveland, Tenn., spent all day Wednesday cutting through sections of the bridge’s steel beam supports to place explosives. The explosives were guarded by safety barriers.“The safety barriers are made of wood and filled with sand,” said Tennessee Valley Explosives employee Gary Owens.