|
Incident ID |
NH00480-3441 |
|
Dam Name |
LOWER IPC DAM |
|
Downstream Hazard Potential |
S |
|
State |
NH |
|
Incident Date |
06/22/2020 |
|
Incident Type |
Non-failure |
|
Incident Driver |
Seepage/internal Erosion |
|
Incident Mechanism 1 |
Piping |
|
Incident Mechanism 2 |
Excessive/increased Seepage |
|
Incident Mechanism 3 |
|
|
Incident Description |
Two whirlpools were observed upstream of the TC spillway |
|
Named Hydrologic Event |
|
|
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 |
None |
|
Economic Damages (in $) |
Unknown |
|
Volume released at failure (ac-ft) |
|
|
Response |
|
|
Additional Remarks or Updates |
Low level gate opened until repairs were made |
|
Incident Time |
|
|
Incident Duration |
68 days |
|
Incident Report Produced |
Yes |
|
Information Sources |
NHDES DAM BUREAU |
|
Owner Type |
P |
|
Dam Type |
CNTC |
|
Primary Purpose(s) |
H |
|
EAP |
Y |
|
Year Completed |
1934 |
|
Year Modified |
1937 |
|
Dam Height |
16 ft |
|
Max Storage (ac-ft) |
31 ac-ft |
|
Surface Area (acres) |
2 acres |
|
River Name |
NEWFOUND RIVER |
|
Latitude |
43.6 |
|
Longitude |
-71.748 |
|
Regulatory Agency(ies) |
NHDES DAM BUREAU |
|
NID Number |
NH00480 |
|
Attachments |
|
