LONE TREE DAM - NE00815-2843
Dam Name: LONE TREE DAM
State: NE
Downstream Hazard Potential: L
Incident Type: Failure
Incident Date: 05/01/2015
Incident Driver: Hydrologic/Flooding
Incident Mechanism 1: Overtopping
Incident Mechanism 2
Incident Mechanism 3
Incident IDNE00815-2843
Incident Description
Named Hydrologic Event
EAP Enacted (Y/N) due to IncidentNo
Fatalities (Number)0
Number of People Evacuated0
Number of Habitable Structures Evacuated0
Number of Habitable Structures Flooded0
Other Infrastructure ImpactsRoads
Economic Damages (in $)Unknown
Response
Volume released at failure (ac-ft)504
Additional Remarks or UpdatesPrincipal spillway removed in 1980's, so auxiliary spillway was only spillway. Reservoir maintained at higher than designed level. Resulted in severe wave erosion into crest of dam prior to breaching. Damage to downstream rural roads and downstream pastures and fencelines
Owner TypeP
Dam TypeRE
Primary Purpose(s)I
EAPNR
Dam Height19 ft
Max Storage (ac-ft)504.00
Surface Area (acres)46.00
Year Completed1954
NID NumberNE00815
River NameLONE TREE CREEK
Latitude42.9161
Longitude-103.316
Year Modified
Regulatory Agency(ies)NE DNR
Incident Time
Incident Duration
Incident Report ProducedNo
Information SourcesNE DNR
