HELDERBERG LAKE DAM - NY00276-1294


Incident ID NY00276-1294
Dam Name HELDERBERG LAKE DAM
Downstream Hazard Potential H
State NY
Incident Date 08/28/2011
Incident Type Non-failure
Incident Driver Hydrologic/flooding
Incident Mechanism 1 High Reservoir Level
Incident Mechanism 2
Incident Mechanism 3
Incident Description High water during Hurricane Irene. Dam did not overtop.
Named Hydrologic Event Irene
EAP Enacted (Y/N) due to Incident Yes
Fatalities (Number)
Number of People Evacuated
Number of Habitable Structures Evacuated
Number of Habitable Structures Flooded
Other Infrastructure Impacts
Economic Damages (in $)
Volume released at failure (ac-ft)
Response
Additional Remarks or Updates
Incident Time
Incident Duration
Incident Report Produced
Information Sources
Owner Type P
Dam Type
Primary Purpose(s) RS
EAP Y
Year Completed 1944
Year Modified 0
Dam Height 35 ft
Max Storage (ac-ft) 330 ac-ft
Surface Area (acres) 27 acres
River Name TR-ONESQUETHAW CREEK
Latitude 42.5972
Longitude -74.0125
Regulatory Agency(ies) NYS DEC
NID Number NY00276
Attachments