|
Incident ID |
NE00274-1223 |
|
Dam Name |
ERICSON DAM |
|
Downstream Hazard Potential |
L |
|
State |
NE |
|
Incident Date |
06/13/2010 |
|
Incident Type |
Failure |
|
Incident Driver |
Hydrologic/flooding |
|
Incident Mechanism 1 |
Spillway Erosion/head Cutting |
|
Incident Mechanism 2 |
|
|
Incident Mechanism 3 |
|
|
Incident Description |
Breached through the emer spwy. The emer spwy was redesigned and modified in 2003. Once the topsoil was removed, the underlying soil was mostly sand. It took about 3 hours for the headcut to advance all the way upstream through the emer spwy. |
|
Named Hydrologic Event |
|
|
EAP Enacted (Y/N) due to Incident |
No |
|
Fatalities (Number) |
|
|
Number of People Evacuated |
0 |
|
Number of Habitable Structures Evacuated |
|
|
Number of Habitable Structures Flooded |
0 |
|
Other Infrastructure Impacts |
|
|
Economic Damages (in $) |
|
|
Volume released at failure (ac-ft) |
750 ac-ft |
|
Response |
|
|
Additional Remarks or Updates |
At least ten county road bridges were damaged or washed away. A two-lane U.S. Highway was overtopped for awhile but was not damaged. |
|
Incident Time |
|
|
Incident Duration |
|
|
Incident Report Produced |
|
|
Information Sources |
|
|
Owner Type |
P |
|
Dam Type |
RE |
|
Primary Purpose(s) |
C |
|
EAP |
NR |
|
Year Completed |
1916 |
|
Year Modified |
2004 |
|
Dam Height |
35 ft |
|
Max Storage (ac-ft) |
968 ac-ft |
|
Surface Area (acres) |
123 acres |
|
River Name |
CEDAR RIVER |
|
Latitude |
41.7584 |
|
Longitude |
-98.6529 |
|
Regulatory Agency(ies) |
NE DNR |
|
NID Number |
NE00274 |
|
Attachments |
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