BIG ELK LAKE - PA00056-3223


Incident ID PA00056-3223
Dam Name BIG ELK LAKE
Downstream Hazard Potential S
State PA
Incident Date 09/08/2011
Incident Type Non-failure
Incident Driver Hydrologic/flooding
Incident Mechanism 1 High Reservoir Level
Incident Mechanism 2
Incident Mechanism 3
Incident Description EAP EVACUATIONS. OWNER PUT SANDBAGS, TWO LAYERS, ACROSS TOP OF DAM. WATER ROSE ABOVE FIRST LAYER.
Named Hydrologic Event TS Lee
EAP Enacted (Y/N) due to Incident Yes
Fatalities (Number) 0
Number of People Evacuated 15
Number of Habitable Structures Evacuated 6
Number of Habitable Structures Flooded 0
Other Infrastructure Impacts
Economic Damages (in $) None
Volume released at failure (ac-ft)
Response A DETAILED BREACH ANALYSIS IN 2016 USING LIDAR SHOWED DOWNSTREAM HOMES ARE NOT IMPACTED BY A DAM FAILURE.
Additional Remarks or Updates OVERTOPPING PREVENTED BY SANDBAGS. BY 4:30 PM, 9/8/11 WATER HAD RECEDED TO 6 INCH BELOW TOP OF DAM.
Incident Time
Incident Duration 1 DAY
Incident Report Produced
Information Sources PA Dam Safety
Owner Type P
Dam Type MSREST
Primary Purpose(s) RS
EAP Y
Year Completed 1860
Year Modified 2006
Dam Height 12 ft
Max Storage (ac-ft) 740 ac-ft
Surface Area (acres) 79 acres
River Name ELK LAKE STREAM
Latitude 41.7528
Longitude -75.9547
Regulatory Agency(ies) PENNSYLVANIA DEPARTMENT OF ENVIRONMENTAL PROTECTION
NID Number PA00056
Attachments