KS00022 - Kirwin Dam


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Kirwin Dam


	Statistics

General

Region (Map) : ...................Great Plains

State (Map) ........................ Kansas

County ................................ Phillips

Project: ................................ PSMBP-Kirwin

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

Location: ............................. S. of Phillipsburg

Watercourse: ...................... NF Solomon River

Reservoir: ........................... Kirwin

Construction Date: ............1952-1955

National ID Number .......... KS00022

Hydrologic Unit Code .....

Dimensions

Crest Elevation of Dam: .....................1779.00 ft

Structural Height of Dam: .................. 169.00 ft

Crest Length: ....................................... 960.00 ft

Top of Joint Use: ................................ N/A

Top of Active Conservation: ........... 1729.25 ft

Top of Inactive Conservation: ......... 1697.00 ft

Spillway Crest: .................................... 1757.30 ft

Top of Dead Storage: ........................ 1693.00 ft

Streambed at Dam Axis : ................... 1662.30 ft

Hydraulics

Normal Water Surface Elev: ..............1729.25 ft

Hydraulic Height: .................................. 97.30 ft

Service Spillway Type:

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

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

Crest Length ........................................ 400 ft

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

Capacity at Elev: 1773.0 ft, 96,000 cfs

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

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

Outlet Works Capacity at

Elevation 1701.0 ft., .......................... 275 cfs

Hydrology

Drainage Area: ..................................1370 sq mi

Hydrometeorological Report HMR 51&52

Flood Type: ....................May-August General

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

Probable Maximum Flood (PMF) Report:

Peak Inflow: .................................... 290,855 cfs

Inflow Volume: ......................... 883,900 acre-ft

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

PMF Routing MWS Elev.: ....................... N/A

Initial Routing Elev: ..........................1729.25 ft

Study Date: ................................. January 1988

Power Generation

Power Generation at Dam Site - None

Bureau of Reclamation Power Program

Narration

Geology

The bedrock in the sediments of Kirwin Dam is the Fort Hays limestone of the Niobrara foundation. The Fort Hays overlies the Carlile shale, which forms the bedrock under valley section of the Dam. Both of these formations are of Cretaceous Age. The overburden in the area consists of reworked chalk covered with a thin layer of silt and sand (loess). Numerous areas of lithologic color change indicating that the chalk is near the surface substantiate the thinness of the silt-sand layer. Several seismic spreads were shot in such areas to verify this interpretation. An example of chalk is revealed by a group of light colored patches about 700 feet south of the channel on the right abutment.

Links

| Recreation | Kirwin National Wildlife Refuge |

| Dams Located by State | USBR Kansas Dams | South Great Plains Region Dams |

| Owner: Bureau of Reclamation, Nebraska-Kansas Area Office,
PO Box 1607, Grand Island, NE 68802-1607, (308) 389-4622

| Operator: Kirwin Irrigation District No. 1,
PO Box 660, Gaylord, KS 67638, (785) 697-2273