LOWER BLUE LAKE - CA00380-3255
| Incident ID | CA00380-3255 |
| Dam Name | LOWER BLUE LAKE |
| Downstream Hazard Potential | L |
| State | CA |
| Incident Date | 06/26/2018 |
| Incident Type | Non-failure |
| Incident Driver | Seepage/internal Erosion |
| Incident Mechanism 1 | Excessive/increased Seepage |
| Incident Mechanism 2 | |
| Incident Mechanism 3 | |
| Incident Description | Damp spots on the downstream face along the length of the left embankment, localized small active seep from damp area, and seepage boil located ~10 feet downstream of the toe on left side of the dam. |
| Named Hydrologic Event | |
| EAP Enacted (Y/N) due to Incident | No |
| Fatalities (Number) | 0 |
| 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 | Immediate response by dam owner and Division of Safety of Dams. Spillway stoplogs have been removed and the reservoir restricted. |
| Additional Remarks or Updates | |
| Incident Time | |
| Incident Duration | |
| Incident Report Produced | Yes |
| Information Sources | CA DSOD |
| Owner Type | P |
| Dam Type | RE |
| Primary Purpose(s) | H |
| EAP | NR |
| Year Completed | 1885 |
| Year Modified | 0 |
| Dam Height | 40 ft |
| Max Storage (ac-ft) | 5091 ac-ft |
| Surface Area (acres) | 198 acres |
| River Name | BLUE CREEK |
| Latitude | 38.6088 |
| Longitude | -119.927 |
| Regulatory Agency(ies) | DWR, SAFETY OF DAMS |
| NID Number | CA00380 |
| Attachments |
