It is in Crescent, New York, a hamlet in the town of Halfmoon in southern Saratoga County on the northern side of the Mohawk River.

The Crescent Bridge carries U.S Route 9 over the Mohawk River between the towns of Colonie in Albany County and Halfmoon.

Afterwards the piers of the 1825 aqueduct were used to support a plank road at one point and later an iron toll bridge.

When the State Barge Canal replaced the Erie Canal a new five-span truss bridge was built across the river (1914) and the 1842 aqueduct and the iron toll bridge were dismantled to clear the river for the passage of barge traffic.

There are only a few cut stone remnants of the abutments on both the north and south banks of the Mohawk River which mark the opposite ends of the aqueduct.