LAKE DELHI DAM - IA01297-600
Incident ID IA01297-600
Dam Name LAKE DELHI DAM
Downstream Hazard Potential S
State IA
Incident Date 07/25/2010
Incident Type Failure
Incident Driver Unknown
Incident Mechanism 1 Under Investigation
Incident Mechanism 2
Incident Mechanism 3
Incident Description Heavy rain in the area caused the dam to overtop and fail. The dam had three gates at least one of which was not operating properly and only partially open at the time of the flood.
Named Hydrologic Event
EAP Enacted (Y/N) due to Incident No
Fatalities (Number)
Number of People Evacuated 900
Number of Habitable Structures Evacuated
Number of Habitable Structures Flooded 1100
Other Infrastructure Impacts None
Economic Damages (in $)
Volume released at failure (ac-ft) 9930 ac-ft
Response
Additional Remarks or Updates NID indicates that the dam did not have an EAP.
Incident Time 12:00 AM
Incident Duration
Incident Report Produced
Information Sources
Owner Type P
Dam Type PG
Primary Purpose(s) R
EAP NR
Year Completed 1922
Year Modified 0
Dam Height 55 ft
Max Storage (ac-ft) 9920 ac-ft
Surface Area (acres) 440 acres
River Name MAQUOKETA RIVER
Latitude 42.4081
Longitude -91.3454
Regulatory Agency(ies) IOWA DNR
NID Number IA01297
Attachments
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