Lake Alice No 1and 1 Half Dam

Overview
Bedrock underlying the Alice Dams and Reservoirs consist of sandy silt of the Brule Formation.  Project histories (USBR, 1912) allude to sand and gravel cover of about 3 meters at the damsite.  There is no known record of the nature and thickness of material overlying the Brule Formation elsewhere at the site, it is likely that the valley bottom contains material of a thickness comparable to that at the damsite, and that the entire area is mantled by eolian sand and loess.  While Brule is generally massive in the subsurface, it develops jointing when exposed to air.  Water exploits these joints, forming fissures.  There is no evidence of post-Miocene faulting at either Lake Alice or Minatare damsites or within 60 km of the sites.  In addition, the smooth gentle slopes adjacent to the reservoirs suggest there are no active landslides at the site.

General
RegionFacilities in Great Plains | Great Plains Home Page
StateNebraska
CountyScotts Bluff
ProjectNorth Platte
Dam Type
ReservoirLake Alice
WatercourseInterstate Canal
Location
Longitude-103.5970
Latitude41.9828
Original Construction1910-1911
Modified Construction
National ID NumberNE01072
Hydrologic Unit Code

Dimensions
Structural Height33.0 ft
Hydraulic Height (Normal Operating Depth at Dam)
Top Parapet (Elevation)
Spillway Crest Elevation
Crest Elevation4192.0 ft
Crest Length2550.0 ft
Crest Width
Base Width
Volume of Dam Construction Materials
Streambed at Dam Axis
Top of Exclusive Flood Control Pool (Elevation)
Top of Joint Use Pool (Elevation)
Top of Active Conservation Pool (Elevation)
Top of Inactive Conservation Pool (Elevation)
Top of Dead Storage Pool (Elevation)

Hydraulics & Hydrology
Volume
Total Water Storage at Elevation
Maximum Water Surface Elevation
Normal Water Surface Elevation4182.0 ft
Spillway Type
Auxiliary SpillwayNo
Spillway Capacity at Elevation
Auxiliary Spillway Capacity at Elevation
Uncontrolled Spillway Capacity at Elevation
Outlet Works Capacity at Elevation
Diversion Capacity at Elevation
Drainage Area20.5 sq mi
Hydrometeorological Report (HMR)HMR
Probable Maximum Flood (PMF) Report

Contact Information
Owner
TitleArea Manager
OrganizationWyoming Area Office
AddressP.O. Box 1630
CityMills, WY 82644
Phone (Office)307 261-5671
Operator
OrganizationPathfinder Irrigation District
AddressPO Box 338
CityMitchell, NE 69357
Phone (Office)308 623-1022


Last updated: Apr 02, 2013