NY 103 begins at an intersection with NY 5S in Rotterdam Junction, a hamlet in the town of Rotterdam. The highway heads northward as the two-lane Bridge Street, serving a block of homes as it intersects Alexander Drive and Leonard Road.
NY 103 commences at an intersection with NY 5S in Rotterdam Junction, a hamlet within the town of Rotterdam. The highway proceeds northward as the two-lane Bridge Street, passing through a block of residences before crossing Alexander Drive and Leonard Road.