|
Incident ID |
NH00009-3439 |
|
Dam Name |
VILAS POOL DAM |
|
Downstream Hazard Potential |
S |
|
State |
NH |
|
Incident Date |
07/29/2021 |
|
Incident Type |
Non-failure |
|
Incident Driver |
Hydrologic/flooding |
|
Incident Mechanism 1 |
High Reservoir Level |
|
Incident Mechanism 2 |
Overtopping |
|
Incident Mechanism 3 |
Insufficient Spillway Capacity |
|
Incident Description |
Left abutment wall overtopped during excess rainfall event and flowed down state road. Down slope flood waters re-entered the downstream channel and eroded the roadway and bank. |
|
Named Hydrologic Event |
|
|
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 |
Roads |
|
Economic Damages (in $) |
Unknown |
|
Volume released at failure (ac-ft) |
|
|
Response |
|
|
Additional Remarks or Updates |
NH Route 123A flooded, undermined, and collapsed. NHDOT is working to repair road and with the Town (owner) potential solutions to prevent overtopping of the abutment wall in the future. |
|
Incident Time |
|
|
Incident Duration |
2 days |
|
Incident Report Produced |
Unknown |
|
Information Sources |
NHDES DAM BUREAU |
|
Owner Type |
L |
|
Dam Type |
CN |
|
Primary Purpose(s) |
R |
|
EAP |
Y |
|
Year Completed |
1925 |
|
Year Modified |
0 |
|
Dam Height |
31 ft |
|
Max Storage (ac-ft) |
72 ac-ft |
|
Surface Area (acres) |
6 acres |
|
River Name |
COLD RIVER |
|
Latitude |
43.1536 |
|
Longitude |
-72.3488 |
|
Regulatory Agency(ies) |
NHDES DAM BUREAU |
|
NID Number |
NH00009 |
|
Attachments |
|
