MARSTON LAKE - SOUTH DAM - CO02798-3024
Dam Name: MARSTON LAKE - SOUTH DAM
State: CO
Downstream Hazard Potential: H
Incident Type: Non-Failure
Incident Date: 11/23/2015
Incident Driver: Seepage/Internal Erosion
Incident Mechanism 1: Excessive/Increased Seepage
Incident Mechanism 2
Incident Mechanism 3
Incident IDCO02798-3024
Incident DescriptionUnusual piezometer readings and seepage at the top of the first filling
Named Hydrologic Event
EAP Enacted (Y/N) due to Incident
Fatalities (Number)
Number of People Evacuated
Number of Habitable Structures Evacuated
Number of Habitable Structures Flooded
Other Infrastructure Impacts
Economic Damages (in $)
Response
Volume released at failure (ac-ft)
Additional Remarks or UpdatesUnusual piezometer readings and seepage at the top of the first filling of this recently rehabilitated dam.
Owner TypeU
Dam TypeRE
Primary Purpose(s)S
EAPY
Dam Height33 ft
Max Storage (ac-ft)21100.00
Surface Area (acres)652.00
Year Completed1899
NID NumberCO02798
River NameSOUTH PLATTE RIVER-OS
Latitude39.6237
Longitude-105.062
Year Modified
Regulatory Agency(ies)DWR
Incident Time
Incident Duration
Incident Report Produced
Information SourcesCO DWR
