drawbridge tilghman island on a stormy summer afternoon . it is a heel trunion counterweigh rolling lift bridge

transport vehicle bridge waterway industry construction architecture landmark infrastructure mast drawbridge entrance tilghman island maryland stormy afternoon summer type heel trunion rolling lift counterweight suspended roadway constructed knapps narrows site ease speed operation opened east coast bridges coastal chesapeake bay harbor fishing blue crab crabbing oystering traditional counter weight counterwith counterweiith counterweigh ith counterweighrolling