OR00579 - Arthur R. Bowman Dam


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Arthur R. Bowman Dam


	Statistics

General

Region (Map) : .................... Pacific Northwest

State (Map) .......................... Oregon

County ................................. Crook County

Project: ................................. Crooked River

Dam type: ............................ Earthfill

Location: ............................. 20 mi S of Prineville

Watercourse: ...................... Crooked River

Reservoir: ............................ Prineville

Construction Date: .............1958-1961

National ID Number ........... OR00579

Hydrologic Unit Code ......

Dimensions

Crest Elevation of Dam: .......................3264.0 ft

Structural Height of Dam: .................... 245.0 ft

Crest Length: ......................................... 800.0 ft

Top of Joint Use: ................................. 3234.8 ft

Top of Active Conservation: ............. 3211.2 ft

Top of Inactive Conservation: ........... 3114.0 ft

Spillway Crest: ...................................... 3234.8 ft

Top of Dead Storage: .......................... 3112.0 ft

Streambed at Dam Axis : ..................... 3076.0 ft

Hydraulics

Normal Water Surface Elev: ..............3211.17 ft

Hydraulic Height: ................................ 181.90 ft

Service Spillway Type:

Uncontrolled Crest ................................Yes

Morning-Glory ........................................... No

Crest Length ........................................... NA

Gated ....................................................... No

Capacity at Elev: 3257.9 ft, 8,120 cfs

Auxiliary Spillway .......................................... No

Capacity at Elev. .................................. 0 cfs

Outlet Works Capacity at

Elevation 3234.8 ft., ........................ 3,300 cfs

Hydrology

Drainage Area: ................................2635.0 sq mi

Hydrometeorological Report HMR 57

Flood Type: ............................February General

Storm Duration: ........................................ 72 hrs

Probable Maximum Flood (PMF) Report:

Peak Inflow: .....................................267,500 cfs

Inflow Volume: ..........................753,500 acre-ft

Flow Duration: ..................................... 15 days

PMF Routing MWS Elev.: ................ 3264.0 ft

Initial Routing Elev: ......................... 3211.17 ft

Study Date: ................................. August 1994

Power Generation

Power Generation at Dam Site - None

Bureau of Reclamation Power Program

Narration

Geology

The Crooked River drains a mountainous area composed of volcanic tuff and agglomerate beds, and basalt, rhyolite and andesite lava flows ranging in age from early Eocene to Recent. The drainage basin exhibits a wide variety of topographic forms owing to variation in the resistance of volcanic beds and the varying degree of folding in the area. Depth of overburden at the damsite is not uniform. In the areas where bedrock exposures are common, overburden ranges from several feet deep.

Miscellaneous Links

| Current Reservoir Storage Units within the Deschutes River Basin |

Links

| Recreation |

| Dams Located by State | USBR Oregon Dams | Pacific Northwest Region Dams |

| Owner: Bureau of Reclamation, Lower Columbia Area Office, 1201 NE Lloyd Boulevard Suite 750, Portland, OR 97232-1295, Phone: 503-872-2795, Fax: 503-872-2797

| Operator: Bureau of Reclamation, Lower Columbia Area Office, 1201 NE Lloyd Boulevard Suite 750, Portland, OR 97232-1295, Phone: 503-872-2795, Fax: 503-872-2797