General

• Region (Map) : ............. Upper Colorado
• State (Map) ................... Colorado
• County ........................... Mesa
• Project: ........................... Collbran
• Dam type: ...................... Earthfill
• Location: ....................... 12 mi S of Collbran
• Watercourse: ............... Trib. of E Fork Big Creek
• Reservoir: ..................... Lambert
• Construction Date: ......1911
• National ID Number ..... CO01813
• Hydrologic Unit Code ...

Dimensions

• Crest Elevation of Dam: ....................... 10551 ft
• Structural Height of Dam: ....................    14.0 ft
• Crest Length: ........................................ 1100.0 ft
• Top of Joint Use: .................................          NA
• Top of Active Conservation: ........... 10548.4 ft
• Top of Inactive Conservation: ..................  NA
• Spillway Crest: .............................................  NA
• Top of Dead Storage: .................................  NA
• Streambed at Dam Axis : ............................  NA

Hydraulics

• Normal Water Surface Elev: ......... 10,460.0 ft
• Hydraulic Height: ................................  13.5 ft
• Service Spillway Type:
•    Uncontrolled  Crest    .............................Yes
•    Morning-Glory ........................................ No
•    Crest Length    ..........................................  ft
•    Gated      ................................................... No
•    Capacity at Elev: ................................... NA
• Auxiliary Spillway .................................... No
•     Capacity at Elev.   ............................... NA
• Outlet Works Capacity at
•     Elevation      ft.,  .................................. NA

Hydrology

• Drainage Area: ................................  0.41 sq mi
• Hydrometeorological Report        HMR  (NA)
• Flood Type: ................................................. NA
• Storm Duration: .......................................... NA
• Probable Maximum Flood (PMF) Report:
•   Peak Inflow: ........................................... 36 cfs
•   Inflow Volume: ............................. 66.1 acre-ft
•   Flow Duration: ...................................... 96 hrs
•   PMF Routing MWS Elev: ....................... NA
•   Initial Routing Elev: ........................10,548.0 ft
•   Study Date ............................ :September 1969