ID00376 - Hubbard Dam


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Hubbard Dam


	Statistics

General

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

State (Map) ........................ Idaho

County ............................... Ada

Project: ............................... Boise

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

Location: ........................... 10 SW of Boise

Watercourse: .................... Offstream Storage

Reservoir: .......................... Hubbard

Construction Date: .......... 1902-1902

National ID Number ......... ID00376

Hydrologic Unit Code ....

Dimensions

Crest Elevation of Dam: ..................... 2780.0 ft

Structural Height of Dam: ...................... 23.0 ft

Crest Length: ........................................ 6000.0 ft

Top of Joint Use: .......................................... NA

Top of Active Conservation: ............. 2776.0 ft

Top of Inactive Conservation: ................... NA

Spillway Crest: .............................................. NA

Top of Dead Storage: .......................... 2757.3 ft

Streambed at Dam Axis : ..................... 2757.3 ft

Note: To arrive at USGS elevations subtract 48.2 feet from all elevations displayed

Hydraulics

Normal Water Surface Elev: ............. 2776.0 ft

Hydraulic Height: .................................. 20.7 ft

Service Spillway Type:

Uncontrolled Crest .............................. No

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

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

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

Capacity at Elev: .0 ft, ......................... NA

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

Capacity at Elev. ................................. NA

Outlet Works Capacity at

Elevation 2776.0 ft., ................... 1,440 cfs

Hydrology

Drainage Area: ................................... 2.55 sq mi

Hydrometeorological Report(HMR): HMR 43

Flood Type: .......................... December General

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

Probable Maximum Flood (PMF) Report:

Peak Inflow: ........................................ 2,900 cfs

Inflow Volume: ............................. 1,140 acre-ft

Flow Duration: ....................................... 3 days

PMF Routing MWS Elev.: ................ 2778.0 ft

Initial Routing Elev: ........................... 2776.0 ft

Study Date: ...................................... May 1990

Power Generation

Power Generation at Dam Site - None

Bureau of Reclamation Power Program

Narration

Geology

Hubbard Dam is centrally located in the Western Snake River Plain (WSPR) physiograpphic province. The WSRP is a 50 to 70 km wide trough that trends northeast across southwestern Idaho. The WSRP is characterized by mid to late Cenozoic fluvial lacustrine sedimentation, voluminous basaltic volcanism, low relief and extremely low rates of seismicity.

Miscellaneous Links

| Boise & Payette River Basins Storage |

Links

| Recreation | NA

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

| Owner: Bureau of Reclamation, Snake River Area Office - West,
230 Collins Road, Boise, ID 83703, (208) 383-2200

| Operator: Boise Project Board of Control,
2465 Overland Road, Boise, ID 83705-3155, (208) 344-1141

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