General

• Region (Map) ................... Mid-Pacific
• State (Map) ........................ California
• County ................................ Modoc
• Project: ................................ Klamath
• Dam type: ........................... Roller-Compacted Concrete
• Location: ............................ 19 mi SE of Malin,Or
• Watercourse: ..................... Lost River
• Reservoir: ........................... Clear Lake
• Construction Date: ........... 1908-1910
• National ID Number .......... CA10141
• Hydrologic Unit Code .....

Dimensions

• Crest Elevation of Dam: ...................... 4552.0 ft
• Structural Height of Dam: ....................    42.0 ft
• Crest Length: ....................................... .  840.0 ft
• Top of Joint Use: ................................. 4537.4 ft
• Top of Active Conservation: ............. 4536.4 ft
• Top of Inactive Conservation: ........... 4521.0 ft
• Spillway Crest: ...................................... 4543.0 ft
• Top of Dead Storage: .......................... 4515.6 ft
• Streambed at Dam Axis : ..................... 4513.0 ft

    All elevations are based on USBR Datum. 
    Subtract 59.6 ft to arrive at USGS Datum.

Hydraulics

• Normal Water Surface Elev: ............... 4536.4 ft
• Hydraulic Height: ...................................  32.7 ft
• Service Spillway Type:
•    Uncontrolled  Crest    ................................Yes
•    Morning-Glory ........................................... No
•    Crest Length    ........................................... NA
•    Gated      ....................................................... No
•    Capacity at Elev:  4545.7  ft.,             5,650 cfs
• Auxiliary Spillway ......................................... No
•     Capacity at Elev.   ................................. 0  cfs
• Outlet Works Capacity at
•     Elevation  4537.6 ft.,  ....................... 1,000 cfs

Hydrology

• Drainage Area: ................................735.4 sq mi
• Hydrometeorological Report              HMR 58
• Flood Type: ........................... January General
• Storm Duration: ...................................... 72 hrs
• Probable Maximum Flood (PMF) Report:
•   Peak Inflow: .................................... 56,400 cfs
•   Inflow Volume: ....................... 373,000 acre-ft
•   Flow Duration: ..................................... 7 days
•   PMF Routing MWS Elev.: .....................  NA
•   Initial Routing Elev: ......................... 4536.4 ft
•   Study Date: ............................... January 1996