|
Incident ID |
UT00000-205 |
|
Dam Name |
MAMMOTH DAM |
|
Downstream Hazard Potential |
H |
|
State |
UT |
|
Incident Date |
06/24/1917 |
|
Incident Type |
Failure |
|
Incident Driver |
Other |
|
Incident Mechanism 1 |
Overtopping |
|
Incident Mechanism 2 |
|
|
Incident Mechanism 3 |
|
|
Incident Description |
Dam overtopped scouring away the downstream shell and toppling of the center concrete wall. |
|
Named Hydrologic Event |
|
|
EAP Enacted (Y/N) due to Incident |
|
|
Fatalities (Number) |
0 |
|
Number of People Evacuated |
UNKNOWN |
|
Number of Habitable Structures Evacuated |
UNKNOWN |
|
Number of Habitable Structures Flooded |
UNKNOWN |
|
Other Infrastructure Impacts |
Railroads |
|
Economic Damages (in $) |
$1 million to $5 million |
|
Volume released at failure (ac-ft) |
11000 ac-ft |
|
Response |
|
|
Additional Remarks or Updates |
Faulty Construction. earth-fill over a buttressed concrete core; designed to be heightened in 10-foot steps; by late 1915, its height had reached 67 feet
Denver & Rio Grande Railroad, Roads, Bridges, other utilities damaged
https://damfailures.org/case-study/mammoth-dam-utah-1917/ |
|
Incident Time |
|
|
Incident Duration |
|
|
Incident Report Produced |
YES |
|
Information Sources |
|
|
Owner Type |
P |
|
Dam Type |
RECN |
|
Primary Purpose(s) |
I |
|
EAP |
|
|
Year Completed |
0 |
|
Year Modified |
0 |
|
Dam Height |
67 ft |
|
Max Storage (ac-ft) |
0 ac-ft |
|
Surface Area (acres) |
0 acres |
|
River Name |
GOOSEBERRY CREEK |
|
Latitude |
39.7157 |
|
Longitude |
-111.299 |
|
Regulatory Agency(ies) |
|
|
NID Number |
UT00000 |
|
Attachments |
|
