General

• Region (Map) : ............. Upper Colorado
• State (Map) ................... Colorado
• County ........................... Mesa
• Project: ........................... Collbran
• Dam type: ...................... Earthfill
• Location: ....................... 11 mi S of Collbran
• Watercourse: ................ Trib. of Cottonwood Ck
• Reservoir: ...................... Neversweat
• Construction Date: ........1899
• National ID Number ...... CO00833
• Hydrologic Unit Code ....

Dimensions

• Crest Elevation of Dam: .................... 10044.0 ft
• Structural Height of Dam: ................        16.0 ft
• Crest Length: .....................................      160.0 ft
• Top of Joint Use: ...............................           NA
• Top of Active Conservation: ........... 10041.3 ft
• Top of Inactive Conservation: ..................  NA
• Spillway Crest: .................................... 10041.0 ft
• Top of Dead Storage: .................................. NA
• Streambed at Dam Axis : ............................  NA

Hydraulics

• Normal Water Surface Elev: ............ 10041.3 ft
• Hydraulic Height: ..................................  13.0 ft
• Service Spillway Type:
•    Uncontrolled  Crest    ...............................Yes
•    Morning-Glory .......................................... No
•    Crest Length    .........................................  NA
•    Gated      ...................................................... No
•    Capacity at Elev: ...................................... NA
• Auxiliary Spillway ........................................ No
•     Capacity at Elev.   ................................... NA
• Outlet Works Capacity at
•     Elevation      ft.,  ........................................ NA 

Hydrology

• Drainage Area: ................................   0.55 sq mi
• Hydrometeorological Report            HMR  NA
• Flood Type: .................................................. NA
• Storm Duration: ............................................ NA
• Probable Maximum Flood (PMF) Report:
•   Peak Inflow: ............................................ 56 cfs
•   Inflow Volume: ............................... 101 acre-ft
•   Flow Duration: ....................................... 96 hrs
•   PMF Routing MWS Elev.: ........................ NA
•   Initial Routing Elev: ........................ 10041.0 ft
•   Study Date:............................. September 1969