SWANNANOA LAKE #1 (SOUTH) DAM - NJ00311-1160
Dam Name: SWANNANOA LAKE #1 (SOUTH) DAM
State: NJ
Downstream Hazard Potential: H
Incident Type: Non-Failure
Incident Date: 08/27/2011
Incident Driver: Hydrologic/Flooding
Incident Mechanism 1: Overtopping
Incident Mechanism 2
Incident Mechanism 3
Incident IDNJ00311-1160
Incident Descriptionovertopped, embankment damage
Named Hydrologic EventIrene
EAP Enacted (Y/N) due to IncidentNo
Fatalities (Number)
Number of People Evacuated0
Number of Habitable Structures Evacuated
Number of Habitable Structures Flooded0
Other Infrastructure ImpactsUnknown
Economic Damages (in $)unknown
Response
Volume released at failure (ac-ft)
Additional Remarks or Updates
Owner TypeP
Dam TypeMS
Primary Purpose(s)R
EAPY
Dam Height15 ft
Max Storage (ac-ft)
Surface Area (acres)51.00
Year Completed1914
NID NumberNJ00311
River NameWEST BRANCH ROCKAWAY RIVER
Latitude41.0078
Longitude-74.5179
Year Modified
Regulatory Agency(ies)NJDEP
Incident Time
Incident Duration
Incident Report Produced
Information Sources
