|
Incident ID |
NH01098-3446 |
|
Dam Name |
SILICA POND DAM |
|
Downstream Hazard Potential |
S |
|
State |
NH |
|
Incident Date |
07/01/2022 |
|
Incident Type |
Failure |
|
Incident Driver |
Deterioration Or Poor Condition |
|
Incident Mechanism 1 |
Gate/valve Failure |
|
Incident Mechanism 2 |
|
|
Incident Mechanism 3 |
|
|
Incident Description |
Failure of the low level gate resulted in the release of the impoundment. The release was gradual, and it is understood that downstream economic loss was not inflicted. |
|
Named Hydrologic Event |
|
|
EAP Enacted (Y/N) due to Incident |
|
|
Fatalities (Number) |
0 |
|
Number of People Evacuated |
0 |
|
Number of Habitable Structures Evacuated |
0 |
|
Number of Habitable Structures Flooded |
0 |
|
Other Infrastructure Impacts |
None |
|
Economic Damages (in $) |
Unknown |
|
Volume released at failure (ac-ft) |
4 ac-ft |
|
Response |
|
|
Additional Remarks or Updates |
The dam owner is presently evaluating reconstruction or removal options. |
|
Incident Time |
|
|
Incident Duration |
1 day |
|
Incident Report Produced |
|
|
Information Sources |
NHDES |
|
Owner Type |
L |
|
Dam Type |
RE |
|
Primary Purpose(s) |
R |
|
EAP |
NR |
|
Year Completed |
1935 |
|
Year Modified |
0 |
|
Dam Height |
9 ft |
|
Max Storage (ac-ft) |
29 ac-ft |
|
Surface Area (acres) |
3 acres |
|
River Name |
Unnamed |
|
Latitude |
42.8227 |
|
Longitude |
-72.1869 |
|
Regulatory Agency(ies) |
NHDES |
|
NID Number |
NH01098 |
|
Attachments |
|
