Incident ID |
SD00026-3415 |
Dam Name |
MENNO DAM |
Downstream Hazard Potential |
H |
State |
SD |
Incident Date |
06/12/1984 |
Incident Type |
Failure |
Incident Driver |
Hydrologic/flooding |
Incident Mechanism 1 |
Overtopping |
Incident Mechanism 2 |
Insufficient Spillway Capacity |
Incident Mechanism 3 |
|
Incident Description |
Heavy rainfall on the evening of June 11, 1984 along with high reservoir levels from heavy rain in the days prior caused the dam to overtop and fail. |
Named Hydrologic Event |
|
EAP Enacted (Y/N) due to Incident |
|
Fatalities (Number) |
0 |
Number of People Evacuated |
unknown |
Number of Habitable Structures Evacuated |
1 |
Number of Habitable Structures Flooded |
1 |
Other Infrastructure Impacts |
Other |
Economic Damages (in $) |
|
Volume released at failure (ac-ft) |
|
Response |
|
Additional Remarks or Updates |
The hog barn and approximately 450 hogs, farmstead buildings, and farm equipment associated with the downstream farm house. There was a court case over damages (Heer vs the State of South Dakota) that made it to the South Dakota Supreme Court which awarded the Heers approximately $650,000 in damages. Dam was reconstructed about 400 feet downstream of original dam site -ground breaking April 1995, dedication June 1996, and first flow through spillway March 1997. |
Incident Time |
7:00 |
Incident Duration |
|
Incident Report Produced |
|
Information Sources |
SD Dam Safety |
Owner Type |
S |
Dam Type |
RE |
Primary Purpose(s) |
R |
EAP |
Y |
Year Completed |
1935 |
Year Modified |
1996 |
Dam Height |
53 ft |
Max Storage (ac-ft) |
2050 ac-ft |
Surface Area (acres) |
48 acres |
River Name |
JAMES RIVER TRIBUTARY |
Latitude |
43.2617 |
Longitude |
-97.6167 |
Regulatory Agency(ies) |
DENR |
NID Number |
SD00026 |
Attachments |
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