Incident ID |
SD00040-3249 |
Dam Name |
HIDDEN TIMBER |
Downstream Hazard Potential |
L |
State |
SD |
Incident Date |
03/23/2019 |
Incident Type |
Failure |
Incident Driver |
Hydrologic/flooding |
Incident Mechanism 1 |
Unknown |
Incident Mechanism 2 |
|
Incident Mechanism 3 |
|
Incident Description |
|
Named Hydrologic Event |
|
EAP Enacted (Y/N) due to Incident |
No |
Fatalities (Number) |
0 |
Number of People Evacuated |
|
Number of Habitable Structures Evacuated |
|
Number of Habitable Structures Flooded |
|
Other Infrastructure Impacts |
|
Economic Damages (in $) |
Unknown |
Volume released at failure (ac-ft) |
|
Response |
post failure site visit by owner staff |
Additional Remarks or Updates |
low hazard dam so was not required to have an EAP, also no habitable structures in the downstream flood plain, the primary incident mechanism was likely overtopping |
Incident Time |
|
Incident Duration |
|
Incident Report Produced |
No |
Information Sources |
SD DENR |
Owner Type |
S |
Dam Type |
RE |
Primary Purpose(s) |
PR |
EAP |
NR |
Year Completed |
1933 |
Year Modified |
1959 |
Dam Height |
18 ft |
Max Storage (ac-ft) |
824 ac-ft |
Surface Area (acres) |
32 acres |
River Name |
ANTELOPE CREEK |
Latitude |
43.2317 |
Longitude |
-100.415 |
Regulatory Agency(ies) |
DENR |
NID Number |
SD00040 |
Attachments |
|