General

• Region (Map) : .................. Upper Colorado
• State (Map) ......................   Utah
• County ................................ Cache
• Project: ...............................  Hyrum
• Dam type: ............................ Earthfill
• Location: ............................  10mi S of Logan
• Watercourse: ...................... Little Bear River
• Reservoir: ...........................  Hyrum
• Construction Date: .............1934-1935
• National ID Number ........... UT10123
• Hydrologic Unit Code ......

Dimensions

• Crest Elevation of Dam: ......................... 4680 ft
• Structural Height of Dam: .......................  116 ft
• Crest Length: ..........................................    540 ft
• Top of Joint Use: ........................................ x.0 ft
• Top of Active Conservation: ................ 1424 ft
• Top of Inactive Conservation: ........... 1412.3 ft
• Spillway Crest: ............................................ x.0 ft
• Top of Dead Storage: .......................... 1411.1 ft
• Streambed at Dam Axis : ............................ x.0 ft

Hydraulics

• Normal Water Surface Elev: ........................... ft
• Hydraulic Height: ....................................... 82 ft
• Service Spillway Type:
•    Uncontrolled  Crest    ................................Yes
•    Morning-Glory ........................................... No
•    Crest Length    .......................................... xx ft
•    Gated      ...................................................... No
•    Capacity at Elev:  4672.0  ft,             6,000 cfs
• Auxiliary Spillway ......................................... No
•     Capacity at Elev. xxxx.0 ft ...................... 0 cfs
• Outlet Works Capacity at
•     Elevation  4660 ft.,  ............................. 300 cfs

Hydrology

• Drainage Area: ................................. 220 sq mi
• Hydrometeorological Report      HMR
• 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: