|
Incident ID |
SC00044-3117 |
|
Dam Name |
LAKEWIND DAM |
|
Downstream Hazard Potential |
S |
|
State |
SC |
|
Incident Date |
09/16/2018 |
|
Incident Type |
Failure |
|
Incident Driver |
Hydrologic/flooding |
|
Incident Mechanism 1 |
Piping |
|
Incident Mechanism 2 |
Spillway Pipe Failure |
|
Incident Mechanism 3 |
|
|
Incident Description |
Primary spillway riser had been removed prior to Hurricane Florence (without a permit/approval from the State) and pond was drained. Heavy precipitation on the watershed over approximately 72 hours completely filled the impoundment and caused overtopping of the dam. The breach occurred in line with the primary spillway barrel, and breach sides are near vertical, indicating a piping failure that likely occurred after water level had receded from overtopping. |
|
Named Hydrologic Event |
Hurricane Florence |
|
EAP Enacted (Y/N) due to Incident |
No |
|
Fatalities (Number) |
0 |
|
Number of People Evacuated |
0 |
|
Number of Habitable Structures Evacuated |
0 |
|
Number of Habitable Structures Flooded |
0 |
|
Other Infrastructure Impacts |
|
|
Economic Damages (in $) |
|
|
Volume released at failure (ac-ft) |
|
|
Response |
State Dam Safety Program performed a full inspection following the breach of this dam. The inspection report will contain a requirement that the Owner hire an engineer and submit either a permit application for repair or removal of the dam. |
|
Additional Remarks or Updates |
Report on dam failures associated with Hurricane Florence to be released by Geotechnical Extreme Event Reconnaisance (GEER) group at some point in the future. GEER team field work occurred during month of September 2018. |
|
Incident Time |
|
|
Incident Duration |
|
|
Incident Report Produced |
|
|
Information Sources |
SC Dam Safety |
|
Owner Type |
P |
|
Dam Type |
RE |
|
Primary Purpose(s) |
R |
|
EAP |
Y |
|
Year Completed |
1900 |
|
Year Modified |
0 |
|
Dam Height |
24 ft |
|
Max Storage (ac-ft) |
173 ac-ft |
|
Surface Area (acres) |
17 acres |
|
River Name |
CREWS BRANCH |
|
Latitude |
34.7336 |
|
Longitude |
-80.1717 |
|
Regulatory Agency(ies) |
SC DHEC |
|
NID Number |
SC00044 |
|
Attachments |
|
