Wednesday, August 6, 2025

State Street Bridges over, and Dam on, Oswegatchie River in Heuvelton, NY

1870s Bridge: (Archived Bridge Hunter; Bridge Hunter)
1917 Bridge: (Archived Bridge Hunter; Bridge Hunter; no Historic Bridges; Satellite)
1923 1mw Dam: (Satellite, it has a fish ladder on the south side.)

Behind the pole in the center is part of the fish ladder.
Street View, Jun 2025

Bridges Now and Then posted
Construction on Heuvelton’s concrete bridge in 1916. Heuvelton, NY. (North Country at Work)
Art Suckewer: The old bridge is an 1870s Wrought Iron Bridge Co. bowstring through truss.

Postcard via BridgeHunter_1870s

It looks like 2 of the 6 trunnion gates have been replaced.
Street View, Sepo2018

Are the replacements movable?
Yes. Data calls them "Other Controlled2." But I couldn't figure out how to look up the meaning of "Other Controlled2." Are they inflatable?
Street View, Jun 2025

NorthCountryAtWork
The dam was constructed in 1923.

NorthCountryAtWork

The dam is 284' (87m) long and 19' (6m) high with a hydraulic height of 35' (11m). [data]
The 2 units have a combined capacity of 1mw. [HydroReform]

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