|
Incident ID |
AR00290-3367 |
|
Dam Name |
LAKE ELMDALE DAM |
|
Downstream Hazard Potential |
H |
|
State |
AR |
|
Incident Date |
04/29/2017 |
|
Incident Type |
Non-failure |
|
Incident Driver |
Hydrologic/flooding |
|
Incident Mechanism 1 |
Spillway Erosion/head Cutting |
|
Incident Mechanism 2 |
Erosion |
|
Incident Mechanism 3 |
|
|
Incident Description |
The Lake Elmdale auxiliary spillway 2 experienced significant headcutting and erosion. |
|
Named Hydrologic Event |
|
|
EAP Enacted (Y/N) due to Incident |
No |
|
Fatalities (Number) |
|
|
Number of People Evacuated |
0 |
|
Number of Habitable Structures Evacuated |
0 |
|
Number of Habitable Structures Flooded |
0 |
|
Other Infrastructure Impacts |
Other |
|
Economic Damages (in $) |
|
|
Volume released at failure (ac-ft) |
|
|
Response |
|
|
Additional Remarks or Updates |
Large cobbles, boulders, rocks, and sediment were washed downstream onto landowners. Lake Elmdale's watershed has seen a 90% development since construction, increasing both runnoff and time of concentration. The dam currently has a primary spillway for normal pool, and three axuiliary spillways. |
|
Incident Time |
|
|
Incident Duration |
|
|
Incident Report Produced |
No |
|
Information Sources |
AR Dam Safety |
|
Owner Type |
S |
|
Dam Type |
RE |
|
Primary Purpose(s) |
R |
|
EAP |
N |
|
Year Completed |
1952 |
|
Year Modified |
0 |
|
Dam Height |
46 ft |
|
Max Storage (ac-ft) |
2050 ac-ft |
|
Surface Area (acres) |
125 acres |
|
River Name |
BUSH CREEK |
|
Latitude |
36.1983 |
|
Longitude |
-94.2183 |
|
Regulatory Agency(ies) |
ANRC |
|
NID Number |
AR00290 |
|
Attachments |
|
