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 |
