Delaware and Raritan Canal - Locks and Spillways

Locks and Spillways

Locks were used to overcome elevation differences along the D&R canal. Many of the locks are still present along the canal route; however, the lock gates have been replaced on the upstream side with small dams and water outfalls. The downstream gates have been removed, so the water in the locks is level with the water on the downstream side. Some of the locks have been buried or removed due to construction projects in the vicinity of the canal.

A number of spillways, which drained excess water from the canal into nearby waterways during periods of heavy flow, are located along the canal route. Spillways are evident as a dip in the tow path along the canal. Some have paving stones spaced closely enough for mules to walk, but are impassable for bicycles. With the flow stopped, species typical of stagnant water live in them.