General

• Region (Map) : .................. Pacific Northwest
• State (Map) ....................... Oregon
• County ............................... Klamath
• Project: ............................... Rogue River Basin
• Dam type: .......................... Earthfill
• Location: ........................... 33 mi NE of Medford
• Watercourse: .................... Fourmile Creek
• Reservoir: .......................... Fourmile Lake
• Construction Date: .......... 1922
• Rehabilitated: ....................1955-1956
• National ID Number ......... OR10011
• Hydrologic Unit Code ....

Dimensions

• Crest Elevation of Dam: ...................... 6005.0 ft
• Structural Height of Dam: ....................... 25.0 ft
• Crest Length: ............................................. 660 ft
• Top of Joint Use: ................................. 6002.5 ft
• Top of Active Conservation: ............. 6002.5 ft
• Top of Inactive Conservation: ................... NA
• Spillway Crest: ...................................... 6000.0 ft
• Top of Dead Storage: .......................... 5980.0 ft
• Streambed at Dam Axis : ............................. NA

Hydraulics

• Normal Water Surface Elev: .............. 6004.5 ft
• Hydraulic Height: .................................... 18.0 ft
• Service Spillway Type:
•    Uncontrolled  Crest    ............................... Yes
•    Morning-Glory ........................................... No
•    Crest Length    ....................................... 60.0 ft
•    Gated      ..................................................... Yes
•    Capacity at Elev:  6002.0  ft, .............. 500 cfs
• Auxiliary Spillway ......................................... No
•     Capacity at Elev.   .................................. 0 cfs
• Outlet Works Capacity at
•     Elevation  6004.5 ft.,  ............................ 85 cfs

Hydrology

• Drainage Area: ................................. sq mi
• Hydrometeorological Report      HMR x
• Flood Type: ...............................General
• Storm Duration: .......................................  hrs
• Probable Maximum Flood (PMF) Report:
•   Peak Inflow: ..................................  cfs
•   Inflow Volume: ........................  acre-ft
•   Flow Duration: ......................................0 days
•   PMF Routing MWS Elev.: ................. x.0 ft
•   Initial Routing Elev: ............................ x.0 ft
•   Study Date: