The portion between downtown Niagara Falls and Lewiston is merely a two-lane surface road, and the parkway as a whole has gradually been relegated due to low usage.

[3] The parkway begins again as a two-lane surface road at Findlay Drive just before Whirlpool State Park.

After serving the Devil's Hole State Park and intersecting NY 104, it passes over the Robert Moses Niagara Power Plant.

The parkway has entrance ramps from I-190 via Upper Mountain Road before passing under the bridge and becoming to a four-lane freeway again.

During this stretch, it has an exit to Pletcher Road, which links the parkway to Joseph Davis State Park.

[3] The New York State Office of Parks, Recreation and Historic Preservation has jurisdiction over the parkway and its spur to Fort Niagara; however, NYSDOT maintains both highways.

At the time, the sections from the Rainbow Bridge to Niagara Street and US 104 to Ridge Road in Lewiston were under construction.

Under the 1971 Regional Highway Plan for the Buffalo–Niagara Falls area, the parkway would have been paralleled by a westward extension of the LaSalle Expressway, which would have extended from the Rainbow Bridge to I-190 along the proposed routing shown on maps 20 years before.

Its southern segment now began at the pre-existing interchange with Quay Street (John B. Daly Boulevard), which remained virtually untouched, while the southern end of the northern segment was reconfigured in the vicinity of downtown to terminate at an at-grade intersection with Main Street (NY 104).

[14] In early 2019, the stretch of parkway between Main Street (NY 104) and Findlay Drive was permanently closed and demolition began starting with the section of viaduct near the Whirlpool Rapids Bridge which was removed in mid-2019.

By July 2020, the section between Main Street and Findlay Drive was fully removed, and is set to be replaced by park land complete with bicycle and pedestrian paths.

[16] Between 2014 and 2016, the Riverway Project, part of the Buffalo Billion state program, reconstructed and reconfigured a one-mile stretch of the parkway near Goat Island.