|
Incident ID |
CA00416-3517 |
|
Dam Name |
MCCLOUD |
|
Downstream Hazard Potential |
H |
|
State |
CA |
|
Incident Date |
12/14/2022 |
|
Incident Type |
Non-failure |
|
Incident Driver |
Unknown |
|
Incident Mechanism 1 |
Other |
|
Incident Mechanism 2 |
|
|
Incident Mechanism 3 |
|
|
Incident Description |
Cracked weld observed on 30-inch bypass pipeline - bypass branches off from 7-ft downstream of low level outlet; controlled by 30" butterfly valve guard gate and 24" Howell bunger valve. Crack is ~20" length, from 2 to 5 o'clock, u/s of guard valve flange. Spray of pressurized water from crack. |
|
Named Hydrologic Event |
|
|
EAP Enacted (Y/N) due to Incident |
No |
|
Fatalities (Number) |
|
|
Number of People Evacuated |
0 |
|
Number of Habitable Structures Evacuated |
0 |
|
Number of Habitable Structures Flooded |
0 |
|
Other Infrastructure Impacts |
None |
|
Economic Damages (in $) |
None |
|
Volume released at failure (ac-ft) |
|
|
Response |
Owner responded quickly upon noticing the cracked pipe and notified state and federal regulators. A temporary repair was completed 12/28/22. |
|
Additional Remarks or Updates |
|
|
Incident Time |
|
|
Incident Duration |
2 weeks |
|
Incident Report Produced |
Yes |
|
Information Sources |
CA DSOD |
|
Owner Type |
P |
|
Dam Type |
RE |
|
Primary Purpose(s) |
H |
|
EAP |
Y |
|
Year Completed |
1965 |
|
Year Modified |
0 |
|
Dam Height |
241 ft |
|
Max Storage (ac-ft) |
35234 ac-ft |
|
Surface Area (acres) |
520 acres |
|
River Name |
MCCLOUD RIVER |
|
Latitude |
41.1309 |
|
Longitude |
-122.071 |
|
Regulatory Agency(ies) |
DWR, SAFETY OF DAMS |
|
NID Number |
CA00416 |
|
Attachments |
|
