Pennsylvania Dams

1,481 dams tracked by the National Inventory of Dams

Total Dams

1,481

High Hazard

780

52.7%

Poor / Unsatisfactory

215

Average Age

80 yrs

Hazard Classification

High780 (52.7%)
Significant310 (20.9%)
Low378 (25.5%)

Condition Assessment

Satisfactory415 (28.0%)
Fair547 (36.9%)
Poor / Unsatisfactory215 (14.5%)
Not Rated304 (20.5%)

Federal

57

State

152

Local

351

Private

911

All Dams in Pennsylvania

Showing 76100 of 780

Dam NameHeight (ft)YearHazardCondition
Township Line

Westmoreland County

561900HighPoor
Towamensing Trails

Carbon County

381977HighFair
Totem Lake

Bradford County

121919HighPoor
Todd Spring Reservoir

Bedford County

341898HighPoor
Tobyhanna No 2

Monroe County

181951HighPoor
Toby Creek Impoundment Basin

Luzerne County

281940HighSatisfactory
Tipton

Blair County

661924HighFair
Tionesta Dam

Forest County

1541940HighNot Available
Tioga Dam

Tioga County

1411978HighNot Available
Thorn Run

Butler County

401903HighSatisfactory
Thomas W Koon

Bedford County

921932HighSatisfactory
Thomas Creek (Rc & D-105)

Susquehanna County

241978HighSatisfactory
Taylor Pond (Pa-446)

Pike County

761963HighFair
Tanglwood Lake

Pike County

181965HighFair
Tamarack Lake B (Pa-461b)

Crawford County

211962HighFair
Tamarack Lake A (Pa-461a)

Crawford County

231962HighUnsatisfactory
Sweetwater Lake

Monroe County

81983HighPoor
Sweet Arrow Lake

Schuylkill County

361923HighSatisfactory
Suydam (Pa-418)

Wayne County

241960HighSatisfactory
Susquehanna Woods Lower

Montgomery County

142005HighFair
Sunnyside Energy Park

Jefferson County

501975HighFair
Sun Mountain Lake

Monroe County

131934HighFair
Summit Lake Reservoir

Lackawanna County

301875HighFair
Sugar Run

Westmoreland County

601907HighSatisfactory
Sugar Creek

Bradford County

151956HighSatisfactory
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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.