LOS ALAMOS CANYON DAM - NM00299-1366
Dam Name: LOS ALAMOS CANYON DAM
State: NM
Downstream Hazard Potential: H
Incident Type: Non-Failure
Incident Date: 07/08/2011
Incident Driver: Hydrologic/Flooding
Incident Mechanism 1: Other
Incident Mechanism 2
Incident Mechanism 3
Incident IDNM00299-1366
Incident DescriptionDam was under rehabilitation construction when the site was evacuated and the area back-burned to prevent a wildfire from reaching Los Alamos. The overflow spillway had been demolished and the dam crest lowered during construction.
Named Hydrologic Event
EAP Enacted (Y/N) due to Incident
Fatalities (Number)
Number of People Evacuated0
Number of Habitable Structures Evacuated
Number of Habitable Structures Flooded0
Other Infrastructure ImpactsWater/sewer lines
Economic Damages (in $)
Response
Volume released at failure (ac-ft)
Additional Remarks or UpdatesA majority of the watershed was burned and the dam is now volunerable to overtopping. A by-pass channel was constructed through the left abutment to carry flood flows from the burnt watershed around the dam. The alteration of the site required a redesign effort that is underway. Los Alamos County watersupply line
Owner TypeL
Dam TypeRE
Primary Purpose(s)S
EAPY
Dam Height40 ft
Max Storage (ac-ft)33.00
Surface Area (acres)2.00
Year Completed1943
NID NumberNM00299
River NameLOS ALAMOS CANYON
Latitude35.8835
Longitude-106.354
Year Modified
2013
Regulatory Agency(ies)Office of the State Engineer
Incident Time
Incident Duration
Incident Report Produced
Information Sources
