NARRAGUINNEP - MAIN DAM - CO01089-3619


Incident ID CO01089-3619
Dam Name NARRAGUINNEP - MAIN DAM
Downstream Hazard Potential H
State CO
Incident Date 05/23/2023
Incident Type Non-failure
Incident Driver Seepage/internal Erosion
Incident Mechanism 1 Excessive/increased Seepage
Incident Mechanism 2 High Reservoir Level
Incident Mechanism 3
Incident Description Contact Erosion Left abutment, High, New Seepage at High reservoir pool that haven't seen in many years.
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 $)
Volume released at failure (ac-ft)
Response Restriction to -6.6 ft below, ower required to hire engineer and submit plans and specs
Additional Remarks or Updates
Incident Time
Incident Duration
Incident Report Produced Yes
Information Sources CODWR
Owner Type P
Dam Type RE
Primary Purpose(s) FIR
EAP Y
Year Completed 1908
Year Modified 0
Dam Height 114 ft
Max Storage (ac-ft) 22700 ac-ft
Surface Area (acres) 581 acres
River Name NARRAGUINNEP CANYON
Latitude 37.4833
Longitude -108.626
Regulatory Agency(ies) DWR
NID Number CO01089
Attachments