|
Incident ID |
SD00010-3409 |
|
Dam Name |
PLATTE |
|
Downstream Hazard Potential |
L |
|
State |
SD |
|
Incident Date |
09/12/2019 |
|
Incident Type |
Failure |
|
Incident Driver |
Hydrologic/flooding |
|
Incident Mechanism 1 |
Overtopping |
|
Incident Mechanism 2 |
|
|
Incident Mechanism 3 |
|
|
Incident Description |
Wide spread rainfall on saturated ground ranging from 5 to 10 inches between September 11-12, 2019 caused Platte Creek to reach record levels which overtopped and failed Platte Dam. |
|
Named Hydrologic Event |
|
|
EAP Enacted (Y/N) due to Incident |
No |
|
Fatalities (Number) |
0 |
|
Number of People Evacuated |
unknown |
|
Number of Habitable Structures Evacuated |
unknown |
|
Number of Habitable Structures Flooded |
unknown |
|
Other Infrastructure Impacts |
|
|
Economic Damages (in $) |
|
|
Volume released at failure (ac-ft) |
|
|
Response |
State dam safety staff did a site visit on Sept. 17, 2019 to document. |
|
Additional Remarks or Updates |
|
|
Incident Time |
|
|
Incident Duration |
|
|
Incident Report Produced |
|
|
Information Sources |
SD Dam Safety |
|
Owner Type |
L |
|
Dam Type |
RE |
|
Primary Purpose(s) |
R |
|
EAP |
NR |
|
Year Completed |
1935 |
|
Year Modified |
1973 |
|
Dam Height |
28 ft |
|
Max Storage (ac-ft) |
1200 ac-ft |
|
Surface Area (acres) |
0 acres |
|
River Name |
PLATTE CREEK |
|
Latitude |
43.385 |
|
Longitude |
-98.8867 |
|
Regulatory Agency(ies) |
DENR |
|
NID Number |
SD00010 |
|
Attachments |
|
