Dams in Washington County, Pennsylvania

67Total Dams

39High Hazard

16Significant

Dam	Hazard	Condition	Height (ft)	Purpose	Year
Mathies Mine Refuse Area Pond #2	High	Fair	300	Other	1982
Mine No 84 - Pond 6 Main	High	Satisfactory	185	Other	1980
Horne No 5 Slurry	High	Satisfactory	146	Other	1984
Maple Creek Slurry Pond 1	High	Satisfactory	120	Other	1973
Maple Creek #3 Slurry Pond #1	High	Satisfactory	115	Other
Robinson Fork (pa-647)	High	Satisfactory	95	Flood Risk Reduction	1977
Maple Creek Slurry Pond No 2 - A	High	Satisfactory	91	Other	1978
Pa-486	High	Satisfactory	86	Flood Risk Reduction	1979
Maple Creek #3 Slurry Pond #2	High	Satisfactory	83	Other
Cross Creek (pa-661)	High	Satisfactory	82	Flood Risk Reduction	1979
Pa-485	High	Satisfactory	78	Flood Risk Reduction	1977
Enlow Fork (pa-648)	High	Satisfactory	76	Flood Risk Reduction	1987
Pa-483	High	Satisfactory	74	Flood Risk Reduction	1973
Harmon Creek (pa-484)	High	Satisfactory	67	Flood Risk Reduction	1971
Pa-480	High	Satisfactory	66	Flood Risk Reduction	1979
Washington No 4	High	Fair	63	Recreation	1903
Pa-479	High	Satisfactory	63	Flood Risk Reduction	1969
Treated Water Pond	High	Satisfactory	59	Other	1966
Pa-481	High	Satisfactory	51	Flood Risk Reduction	1984
Cross Creek (pa-662)	High	Satisfactory	50	Flood Risk Reduction	1983
Washington No 3	High	Satisfactory	48	Grade Stabilization	1895
Jack Clutter	High	Satisfactory	45	Water Supply	1983
Canonsburg	High	Satisfactory	45	Recreation	1943
Maple Creek Silt Pond B	High	Satisfactory	43	Other	1977
Dutch Fork	High	Satisfactory	42	Recreation	1959
Maple Creek Silt Pond A	High	Satisfactory	39	Other	1977
Pa-482	High	Satisfactory	38	Flood Risk Reduction	1970
Canonsburg No 2	High	Poor	36	Recreation	1932
Cherry Valley	High	Poor	33	Recreation	1947
Dinsmore No 2	High	Satisfactory	27	Recreation	1909
Cokeburg	High	Poor	27	Recreation	1902
Richardson	High	Satisfactory	26	Recreation	1976
Trax Farms	High	Fair	26	Irrigation	1963
Woodridge Lake	High	Satisfactory	26	Irrigation	1957
Mine No 84 - Pond 6 West Dike	High	Satisfactory	26	Other
Washington School	High	Fair	23	Flood Risk Reduction	1976
Ashton South	High	Fair	19	Recreation
Lake Jo-ann	High	Satisfactory	16	Recreation	1950
Mine No 84 - Pond 6 East Dike	High	Satisfactory	10	Other
Duck Pond	Significant	Fair	59	Other	1983
Maxwell Locks And Dam	Significant	Not Available	56	Navigation	1964
Mitchell Sludge Sedimentation Pond	Significant	Satisfactory	50	Other	1982
Emerald Lake	Significant	Satisfactory	38	Recreation	1912
Marshall Reservoir No. 2	Significant	Satisfactory	37	Recreation	1928
Canonsburg No 1	Significant	Fair	36	Recreation	1911
Mine No 84 - Pond 7	Significant	Fair	36	Debris Control	1980
Mathies Sediment Pond No 5	Significant	Fair	33	Other	1982
Waterfall Way Detention Basin	Significant	Satisfactory	27	Flood Risk Reduction
Bells Lakes	Significant	Fair	26		1964
Glencannon Pond	Significant	Fair	24	Flood Risk Reduction
Smith And Ponzo	Significant	Fair	24	Recreation	1939
Orchard Hill	Significant	Satisfactory	23	Flood Risk Reduction	1965
Timber Lake	Significant	Fair	17	Flood Risk Reduction	1990
Lake Di Cio	Significant	Satisfactory	15	Recreation	1953
Simon Pond	Significant	Satisfactory	0	Recreation
Hobo Ventures	Low	Fair	118
North Slurry Pond	Low	Not Available	100	Tailings
South Slurry Pond	Low	Not Available	60	Tailings
Nemacolin	Low	Fair	46	Irrigation	1964
Andy	Low	Satisfactory	35	Recreation
Sedimentation Pond No. 8a	Low	Not Available	25	Other
Starpointe	Low	Fair	25	Recreation	1940
Timber Lake B	Low	Fair	25	Recreation	1956
Raw Water Pond	Low	Fair	25	Grade Stabilization	1968
Morganza	Low	Satisfactory	24	Flood Risk Reduction	1991
Chambers	Low	Fair	17	Recreation	1820
Steel	Low	Satisfactory	15	Grade Stabilization	1953