Incident ID |
NY13266-3365 |
Dam Name |
PINE GROVE LAKE DAM |
Downstream Hazard Potential |
H |
State |
NY |
Incident Date |
08/04/2020 |
Incident Type |
Non-failure |
Incident Driver |
Other |
Incident Mechanism 1 |
Vegetation |
Incident Mechanism 2 |
|
Incident Mechanism 3 |
|
Incident Description |
Embankment has extensive trees. High winds caused a tree to fall at the downstream edge of the dam crest. This created a void in the embankment and a crack in the soil around the tree roots, however further examination conluded the cracking was due to earth being pulled away by the roots, not due to dam slope sliding. |
Named Hydrologic Event |
Remnant of Tropical Storm Isaias |
EAP Enacted (Y/N) due to Incident |
No |
Fatalities (Number) |
0 |
Number of People Evacuated |
0 |
Number of Habitable Structures Evacuated |
0 |
Number of Habitable Structures Flooded |
0 |
Other Infrastructure Impacts |
|
Economic Damages (in $) |
|
Volume released at failure (ac-ft) |
|
Response |
|
Additional Remarks or Updates |
tree and roots were removed, embankment was repaired. Additional tree clearing required |
Incident Time |
|
Incident Duration |
|
Incident Report Produced |
No |
Information Sources |
NY Dam Safety |
Owner Type |
P |
Dam Type |
RE |
Primary Purpose(s) |
R |
EAP |
Y |
Year Completed |
1968 |
Year Modified |
0 |
Dam Height |
12 ft |
Max Storage (ac-ft) |
26 ac-ft |
Surface Area (acres) |
5 acres |
River Name |
TR-RAMAPO RIVER |
Latitude |
41.16 |
Longitude |
-74.1778 |
Regulatory Agency(ies) |
NYS DEC |
NID Number |
NY13266 |
Attachments |
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