DULL - WY00757-3352


Incident ID WY00757-3352
Dam Name DULL
Downstream Hazard Potential L
State WY
Incident Date 03/21/2019
Incident Type Failure
Incident Driver Deterioration Or Poor Condition
Incident Mechanism 1 Erosion
Incident Mechanism 2
Incident Mechanism 3
Incident Description Rain on snowmelt event. The dam had already experience erosion around the outlet pipe five months prior to the failure.
Named Hydrologic Event
EAP Enacted (Y/N) due to Incident No
Fatalities (Number) 0
Number of People Evacuated 0
Number of Habitable Structures Evacuated 0
Number of Habitable Structures Flooded 0
Other Infrastructure Impacts Roads
Economic Damages (in $) $1 to $100,000
Volume released at failure (ac-ft) 376 ac-ft
Response
Additional Remarks or Updates County road flooded but not damaged.
Incident Time
Incident Duration 5 months
Incident Report Produced No
Information Sources WY Dam Safety
Owner Type P
Dam Type RE
Primary Purpose(s) I
EAP NR
Year Completed 1937
Year Modified 0
Dam Height 29 ft
Max Storage (ac-ft) 616 ac-ft
Surface Area (acres) 48 acres
River Name SHEEP CREEK
Latitude 43.4133
Longitude -104.507
Regulatory Agency(ies) SEO
NID Number WY00757
Attachments