|
Incident ID |
ND00083-3557 |
|
Dam Name |
BOURBANIS DAM |
|
Downstream Hazard Potential |
S |
|
State |
ND |
|
Incident Date |
05/01/2022 |
|
Incident Type |
Non-failure |
|
Incident Driver |
Hydrologic/flooding |
|
Incident Mechanism 1 |
Spillway Erosion/head Cutting |
|
Incident Mechanism 2 |
|
|
Incident Mechanism 3 |
|
|
Incident Description |
A late-season snowstorm in mid-April led to snowfall accumulations from 12 inches to 30 inches in the watershed. Spring rains in late April and early May accelerated the snowmelt and added to the runoff volume. Flow through the auxiliary spillway caused a progressing headcut in the grass-lined spillway. |
|
Named Hydrologic Event |
|
|
EAP Enacted (Y/N) due to Incident |
Yes |
|
Fatalities (Number) |
|
|
Number of People Evacuated |
Unknown |
|
Number of Habitable Structures Evacuated |
Unknown |
|
Number of Habitable Structures Flooded |
0 |
|
Other Infrastructure Impacts |
Roads |
|
Economic Damages (in $) |
Unknown |
|
Volume released at failure (ac-ft) |
|
|
Response |
Work was done to lower the reservoir and to try to stabilize the headcut. |
|
Additional Remarks or Updates |
|
|
Incident Time |
|
|
Incident Duration |
2 weeks |
|
Incident Report Produced |
No |
|
Information Sources |
ND Dam Safety |
|
Owner Type |
L |
|
Dam Type |
RE |
|
Primary Purpose(s) |
C |
|
EAP |
Y |
|
Year Completed |
1957 |
|
Year Modified |
1984 |
|
Dam Height |
76 ft |
|
Max Storage (ac-ft) |
1502 ac-ft |
|
Surface Area (acres) |
9 acres |
|
River Name |
TONGUE RIVER-TR |
|
Latitude |
48.7844 |
|
Longitude |
-97.9801 |
|
Regulatory Agency(ies) |
NDSWC |
|
NID Number |
ND00083 |
|
Attachments |
|
