Perry Canal crosses under Hope at the grate

The Perry Canal hasn't carried barges since 1947, but it still runs its original course under Hope Street. The only surface evidence is the iron grate at Pitman, where you can hear the water moving if traffic is light.

The canal enters from the north at Rochambeau, tunnels beneath three blocks of row houses, and surfaces briefly at the grate before continuing under Hope. The grate itself is original—cast at the Narragansett Foundry in 1889, with the foundry mark still legible on the south crossbar.

The intersection

Stand at the northwest corner of Hope and Pitman. The grate sits flush with the sidewalk, about eight feet long, with bars spaced wide enough to see the canal bed below. In dry weather you see wet stone and the occasional bottle cap. After rain, the water runs fast enough to carry leaves and newspaper scraps downstream toward the harbor.

The canal bed is brick, laid in a herringbone pattern that's visible when the water is low. Most days you hear the flow before you see it—a steady rush that cuts through street noise.

The downstream route

Perry Canal continues south from the grate, passing under the Elmgrove intersection before turning west at Angell. It joins the older Hanover Slip system near the old mill district, though the connection point is sealed now.

The canal's original outlet was at the harbor, near where the Wheelwright Building stands today. City engineers diverted it to the municipal storm system in 1952, but the original channel is still intact, visible through basement grates in buildings along Benefit Street.

Walking the route

You can trace the canal's path on foot by following the slight depression in the pavement. Hope Street dips noticeably between Rochambeau and Angell—about eight inches lower than the surrounding blocks. Older buildings along this stretch have raised stoops to clear the original flood line.

The grate at Pitman is the only place where the canal remains accessible to the surface. Property owners along the route occasionally petition the city to open additional viewing points, but the infrastructure department has declined every request since 1978.

Visiting

The grate is public property, part of the city sidewalk. Best time to visit is early morning, when Hope Street traffic is light enough to hear the water clearly. The canal runs year-round, though it freezes at the surface in hard winters.

If you're walking the neighborhoods between College Hill and the Elmgrove corridor, the Perry Canal grate marks a useful waypoint—halfway between Rochambeau and Angell, west side of Hope Street, usually with a few leaves caught in the bars.