LAKE BENNETT DAM - AR00038-3100
Incident ID | AR00038-3100 |
Dam Name | LAKE BENNETT DAM |
Downstream Hazard Potential | L |
State | AR |
Incident Date | 04/30/2017 |
Incident Type | Non-failure |
Incident Driver | Hydrologic/flooding |
Incident Mechanism 1 | Insufficient Spillway Capacity |
Incident Mechanism 2 | Overtopping |
Incident Mechanism 3 | |
Incident Description | Over 8 inches fell in less than 4 hours. The spillways could not handle the flow and the dam was overtopped. The rock masonry core was left intact, however the earth downstream embankment was eroded. |
Named Hydrologic Event | |
EAP Enacted (Y/N) due to Incident | No |
Fatalities (Number) | |
Number of People Evacuated | Unknown |
Number of Habitable Structures Evacuated | Unknown |
Number of Habitable Structures Flooded | Unknown |
Other Infrastructure Impacts | Roads |
Economic Damages (in $) | Unknown |
Volume released at failure (ac-ft) | |
Response | |
Additional Remarks or Updates | The earth spillway was washed out and deposited downstream across a road and onto private property. |
Incident Time | |
Incident Duration | 4 hours |
Incident Report Produced | Unknown |
Information Sources | |
Owner Type | S |
Dam Type | ERRE |
Primary Purpose(s) | CFR |
EAP | NR |
Year Completed | 1940 |
Year Modified | 0 |
Dam Height | 41 ft |
Max Storage (ac-ft) | 486 ac-ft |
Surface Area (acres) | 33 acres |
River Name | BLACK FORK CREEK |
Latitude | 35.2817 |
Longitude | -92.285 |
Regulatory Agency(ies) | ANRC |
NID Number | AR00038 |
Attachments | Y |