New York Dams

1,871 dams tracked by the National Inventory of Dams

Total Dams

1,871

High Hazard

419

22.4%

Poor / Unsatisfactory

289

Average Age

89 yrs

Hazard Classification

High419 (22.4%)
Significant544 (29.1%)
Low901 (48.2%)

Condition Assessment

Satisfactory348 (18.6%)
Fair98 (5.2%)
Poor / Unsatisfactory289 (15.4%)
Not Rated1,136 (60.7%)

Federal

26

State

281

Local

506

Private

785

All Dams in New York

Showing 751775 of 1,871

Dam NameHeight (ft)YearHazardCondition
Mechanicville

Rensselaer County

261900SignificantSatisfactory
Mead Reservoir Dam

Clinton County

601922HighSatisfactory
M C Whatmore Lake Dam

Westchester County

171964SignificantNot Rated
Mckinley Mall Retention Pond Dam

Erie County

251985HighPoor
Mckenzie Pond Dam

Essex County

7LowNot Rated
Mcgregor Dam

Clinton County

371968HighNot Rated
Mcdole Mill Pond Dam

Orange County

7SignificantNot Rated
Mcconnellsville Dam

Oneida County

121914LowNot Rated
Mccagg Dam

Columbia County

241965LowNot Rated
Mayham Pond Dam

Schoharie County

111813LowNot Rated
Mayfield Dam

Fulton County

361930LowNot Rated
Mayer Pond Dam

Dutchess County

201967SignificantFair
Maybees Waste Weir Dam

Niagara County

211918SignificantNot Rated
Max O Urbahn Dam

Franklin County

141972LowNot Rated
Mattice Pond Dam

Schoharie County

161970LowNot Rated
Matawa Lake Dam

Sullivan County

221949LowNot Rated
Massena Village Dam

St. Lawrence County

81860LowNot Rated
Massena Intake

St. Lawrence County

1181958HighSatisfactory
Massena Diversion Dam

St. Lawrence County

351912LowNot Rated
Massawippa Lake Dam

Orange County

221934LowNot Rated
Massapequa Lake Dam

Nassau County

111890LowNot Rated
Masonville Dam

Delaware County

30LowNot Rated
Mason Farm Pond Dam

Columbia County

151965SignificantPoor
Martlings Pond Dam

Richmond County

25SignificantFair
Martin Lake Dam (Right)

Orange County

121929SignificantNot Rated
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Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.