EMPIRE (OUTLET EMBANKMENT) - CO00009-3263
Incident ID CO00009-3263
Dam Name EMPIRE (OUTLET EMBANKMENT)
Downstream Hazard Potential H
State CO
Incident Date 06/11/2018
Incident Type Non-failure
Incident Driver Seepage/internal Erosion
Incident Mechanism 1 Sinkhole
Incident Mechanism 2 Piping
Incident Mechanism 3
Incident Description A toe drain installed in 1974 and it appears the 8 inch clay pipe damaged and has allowed sediment to be carried away over the years forming the sink hole.
Named Hydrologic Event
EAP Enacted (Y/N) due to Incident Yes
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 The sink hole did not appear to be changing so temporary patch was performed. With a permanent repair done in the fall. temporarily placed gravel in hole. Then camera old drain. Then abandoned and repair new drain
Additional Remarks or Updates
Incident Time 6:00 PM
Incident Duration
Incident Report Produced Yes
Information Sources CO DNR
Owner Type P
Dam Type RE
Primary Purpose(s) FIR
EAP Y
Year Completed 1905
Year Modified 0
Dam Height 37 ft
Max Storage (ac-ft) 50900 ac-ft
Surface Area (acres) 2842 acres
River Name SOUTH PLATTE RIVER-OS
Latitude 40.2732
Longitude -104.189
Regulatory Agency(ies) DWR
NID Number CO00009
Attachments Y
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