Dams in St. Lawrence County, New York
95 dams on record, from New York's own published inventory. 36 have a computed filing deadline.
Allen Falls Development Dam
high hazard
EAP: On File
Next due: January 31, 2027
Benson Mines Little River Dam
intermediate hazard
EAP: On File
Next due: January 31, 2027
Benson Mines Plant Dam
low hazard
Blake Falls Dam
high hazard
EAP: On File
Next due: January 31, 2027
Bog River Dam
low hazard
EAP: None
Brick Chapel Dam
low hazard
Bridge Brook Pond Dam
low hazard
Browns Falls Dam
high hazard
EAP: On File
Next due: January 31, 2027
Carry Falls Dam
high hazard
EAP: On File
Next due: January 31, 2027
Chapman Dam
low hazard
Chaumont Swamp Dam
low hazard
Colton Dam
high hazard
EAP: On File
Next due: January 31, 2027
Cranberry Lake Dam
high hazard
EAP: On File
Next due: January 31, 2027
DuPue Pond Dam
low hazard
East Dam At Potsdam
low hazard
East Norfolk Dam
high hazard
EAP: On File
Next due: January 31, 2027
Eel Weir Dam
high hazard
EAP: On File
Next due: January 31, 2027
Eli Sochia Dam
low hazard
Emeryville Dam
intermediate hazard
EAP: On File
Next due: January 31, 2027
Eugene Legault Wildlife Pond Dam
low hazard
Five Falls Dam
high hazard
EAP: On File
Next due: January 31, 2027
Flat Rock Dam
high hazard
EAP: On File
Next due: January 31, 2027
Gilman Dam
low hazard
Gouverneur Village Dam
intermediate hazard
EAP: On File
Next due: January 31, 2027
Grasse River Dam
low hazard
Hailesboro #4 Plant Dam
intermediate hazard
EAP: On File
Next due: January 31, 2027
Hailesboro Mill #6 Dam
intermediate hazard
EAP: None
Next due: January 31, 2027
Hailsboro Mill #3 Dam
intermediate hazard
EAP: None
Next due: January 31, 2027
Hannawa Dam
intermediate hazard
EAP: On File
Next due: January 31, 2027
Heuvelton Dam
intermediate hazard
EAP: On File
Next due: January 31, 2027
Hewittville Dam
low hazard
Higley Falls Power Dam
high hazard
EAP: On File
Next due: January 31, 2027
Higley Flow State Park Dam
low hazard
Hollis Brown Recreational Pond Dam
low hazard
Hollow Dam
low hazard
Hopkinton Recreational Pond Dam
low hazard
Horseshoe Lake Dam
low hazard
Howard Haig Farm Pond Dam
low hazard
Industrial Waste Pond Dams A & B
low hazard
International Pulp Co Dam #1
low hazard
International Talc Co Dam
low hazard
Iroquois Dam
high hazard
EAP: On File
Next due: January 31, 2027
Island Branch Control Structure Dam
low hazard
Joe Indian Pond Dam
low hazard
John Van De Water Recreational Pnd Dam
low hazard
Keith Stiles Dam
low hazard
Kring Wetland Reserve 2 Dam
unknown hazard
Kring Wrp Wetland Dam
low hazard
L Hance Wetland Reserve Dam
low hazard
Long Pond Dam
low hazard
Long Sault Dam
high hazard
EAP: On File
Next due: January 31, 2027
Lows Lake Dam
low hazard
Manzi Wetland Dam
unknown hazard
Massena Diversion Dam
low hazard
Massena Intake Dam
high hazard
EAP: On File
Next due: January 31, 2027
Massena Village Dam
low hazard
Mill Dam
low hazard
Mountain Camp Dam
low hazard
Muskrat Pond Dam
low hazard
Neurath Micro-hydro Dam
low hazard
Newton Falls Dam
high hazard
EAP: On File
Next due: January 31, 2027
Newton Falls Paper Mill Dam
low hazard
Newton Falls Stabilization Pond #3 Dam
low hazard
Newton Falls Stabilization Pond #4 Dam
low hazard
Niagara Mohawk Power Dam
intermediate hazard
EAP: On File
Next due: January 31, 2027
Norfolk Dam
high hazard
EAP: On File
Next due: January 31, 2027
Norfolk Rod & Gun Club Marsh Dam
low hazard
Norwood Dam
high hazard
EAP: On File
Next due: January 31, 2027
Ogdensburg Water Power Company Dam
high hazard
EAP: On File
Next due: January 31, 2027
Parishville Development Dam
intermediate hazard
EAP: On File
Next due: January 31, 2027
Piercefield Hydroelectric Dam
low hazard
Plum Brook Dam
low hazard
Pyrites Hydroelectric Dam
low hazard
Rainbow Falls Dam
high hazard
EAP: On File
Next due: January 31, 2027
Raymondville Dam
intermediate hazard
EAP: On File
Next due: January 31, 2027
Redwater Brook Dam
low hazard
Robert Moses/Robert H Saunders Dam
high hazard
EAP: On File
Next due: January 31, 2027
Sissonville Hydroelectric Dam
low hazard
Smithline Wrp Dam
low hazard
South Colton Dam
high hazard
EAP: On File
Next due: January 31, 2027
South Edwards Dam
intermediate hazard
EAP: On File
Next due: January 31, 2027
Stark Falls Dam
intermediate hazard
EAP: On File
Next due: January 31, 2027
Sterling Pond Dam
low hazard
Sugar Island Dam
intermediate hazard
EAP: On File
Next due: January 31, 2027
Sylvan Falls Dam
low hazard
Sylvia Lake Dam
low hazard
Talcville Dam
low hazard
Trout Lake Dam
low hazard
Twin Lakes Dam
low hazard
Unionville Dam
low hazard
Upper & Lower Lakes Dam #1
low hazard
Walmart 3329 Dam
low hazard
Weller Pond Dam
low hazard
West Dam At Potsdam
low hazard
Yaleville Dam
intermediate hazard
EAP: On File
Next due: January 31, 2027
Sourced from New York's public dam inventory. Claiming a dam here is free — look it up to see its full record. See what New York requires of dam owners.