|
Incident ID |
SC00622-3118 |
|
Dam Name |
JORDAN POND DAM |
|
Downstream Hazard Potential |
S |
|
State |
SC |
|
Incident Date |
09/16/2018 |
|
Incident Type |
Failure |
|
Incident Driver |
Hydrologic/flooding |
|
Incident Mechanism 1 |
Spillway Erosion/head Cutting |
|
Incident Mechanism 2 |
|
|
Incident Mechanism 3 |
|
|
Incident Description |
Heavy rainfall over 72 hours associated with Hurricane Florence caused a major inflow event. Breached at what appears to be auxiliary spillway on embankment near left abutment. Post-breach inspection shows highly-erodible sandy soil and no apparent core in the embankment. |
|
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 |
1956 |
|
Year Modified |
0 |
|
Dam Height |
19 ft |
|
Max Storage (ac-ft) |
88 ac-ft |
|
Surface Area (acres) |
10 acres |
|
River Name |
LITTLE BOGGY SWAMP |
|
Latitude |
34.423 |
|
Longitude |
-79.9951 |
|
Regulatory Agency(ies) |
SC DHEC |
|
NID Number |
SC00622 |
|
Attachments |
|
