|
Incident ID |
NH00052-1148 |
|
Dam Name |
SHELBURNE |
|
Downstream Hazard Potential |
L |
|
State |
NH |
|
Incident Date |
08/28/2011 |
|
Incident Type |
Non-failure |
|
Incident Driver |
Hydrologic/flooding |
|
Incident Mechanism 1 |
Overtopping |
|
Incident Mechanism 2 |
|
|
Incident Mechanism 3 |
|
|
Incident Description |
High flows overtopped the dam,eroded abutments and downstream of cutoff walls and flooded powerhouse |
|
Named Hydrologic Event |
Irene |
|
EAP Enacted (Y/N) due to Incident |
|
|
Fatalities (Number) |
|
|
Number of People Evacuated |
0 |
|
Number of Habitable Structures Evacuated |
|
|
Number of Habitable Structures Flooded |
0 |
|
Other Infrastructure Impacts |
Bridges |
|
Economic Damages (in $) |
|
|
Volume released at failure (ac-ft) |
0 ac-ft |
|
Response |
|
|
Additional Remarks or Updates |
Lost power generation from dam. Minor damage to North Road bridge immediately downstream of dam.
Short term closing of North Road bridge due to overtopping |
|
Incident Time |
|
|
Incident Duration |
|
|
Incident Report Produced |
|
|
Information Sources |
|
|
Owner Type |
P |
|
Dam Type |
CNPG |
|
Primary Purpose(s) |
HC |
|
EAP |
NR |
|
Year Completed |
1906 |
|
Year Modified |
1990 |
|
Dam Height |
17 ft |
|
Max Storage (ac-ft) |
960 ac-ft |
|
Surface Area (acres) |
210 acres |
|
River Name |
ANDROSCOGGIN RIVER |
|
Latitude |
44.4042 |
|
Longitude |
-71.1157 |
|
Regulatory Agency(ies) |
NH DEPARTMENT OF ENVIRONMENTAL SERVICES DAM BUREAU |
|
NID Number |
NH00052 |
|
Attachments |
Y |
