Riondas (Flamms) Pond Dam - NJ00000-3429


Incident ID NJ00000-3429
Dam Name Riondas (Flamms) Pond Dam
Downstream Hazard Potential L
State NJ
Incident Date 09/03/2021
Incident Type Non-failure
Incident Driver Hydrologic/flooding
Incident Mechanism 1 Overtopping
Incident Mechanism 2
Incident Mechanism 3
Incident Description Inspection performed by NJ Dam Safety on September 3, 2021 revealed overtopping of dam embankment occurred causing significant erosion of downstream embankment slope and portion of crest.
Named Hydrologic Event TS Ida
EAP Enacted (Y/N) due to Incident Unknown
Fatalities (Number)
Number of People Evacuated Unknown
Number of Habitable Structures Evacuated Unknown
Number of Habitable Structures Flooded Unknown
Other Infrastructure Impacts
Economic Damages (in $)
Volume released at failure (ac-ft)
Response Lake has been drained and temporary armored channel has been cut through embankment as interim measure until permanent repair or decommissioning can be completed.
Additional Remarks or Updates
Incident Time
Incident Duration
Incident Report Produced
Information Sources NJDEP
Owner Type P
Dam Type RE
Primary Purpose(s) R
EAP NR
Year Completed 0
Year Modified 0
Dam Height 10 ft
Max Storage (ac-ft) 0 ac-ft
Surface Area (acres) 2 acres
River Name Hackensack River
Latitude 40.945
Longitude -73.948
Regulatory Agency(ies) NJDEP
NID Number NJ00000
Attachments