General

• Region (Map) : ............. Upper Colorado
• State (Map) ................... Colorado
• County ........................... Mesa
• Project: ........................... Collbran
• Dam type: ...................... Earthfill
• Location: ....................... 13 mi SE of Collbran
• Watercourse: ................ Trib. of Big  Creek
• Reservoir: ...................... Silver Lake
• Construction Date: ........1894
• National ID Number ...... CO00940
• Hydrologic Unit Code ...

Dimensions

• Crest Elevation of Dam: .................... 10251.9 ft
• Structural Height of Dam: ................        20.0 ft
• Crest Length: .....................................      250.0 ft
• Top of Joint Use: ................................           NA
• Top of Active Conservation: ........... 10247.6 ft
• Top of Inactive Conservation: ..................  NA
• Spillway Crest: .................................... 10247.6 ft
• Top of Dead Storage: .........................10234.8 ft
• Streambed at Dam Axis : .............................  NA

Hydraulics

• Normal Water Surface Elev: ............. 10247.6 ft
• Hydraulic Height: ...................................  14.0 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: ................................   0.24 sq mi
• Hydrometeorological Report         HMR  (NA)
• Flood Type: .................................................. NA
• Storm Duration: ............................................ NA
• Probable Maximum Flood (PMF) Report:
•   Peak Inflow: ............................................ 22 cfs
•   Inflow Volume: .............................. 39.4 acre-ft
•   Flow Duration: ....................................... 96 hrs
•   PMF Routing MWS Elev.: ....................... NA
•   Initial Routing Elev: ........................ 10247.6 ft
•   Study Date ............................ :September 1969