CO01668 - Spring Canyon Dam


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Spring Canyon Dam


	Statistics

General

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

State (Map) ............... Colorado

County ........................ Larimer

Project: ........................ Colorado Big Thompson

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

Location: .................... 3 mi SE of Fort Collins

Watercourse: ............. Offstream storage

Reservoir: ................... Horsetooth

Construction Date: ....1946-1949

National ID Number ... CO01668

Hydrologic Unit Code ...

Dimensions

Crest Elevation of Dam: ...................... 5443.0 ft¹

Structural Height of Dam: ................... 155.0 ft

Crest Length: ........................................ 1840.0 ft

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

Top of Active Conservation: ............. 5430.0 ft

Top of Inactive Conservation: ............5325.0 ft

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

Top of Dead Storage: ...........................5320.0 ft

Streambed at Dam Axis : ........................ NA

¹ 1988 modification raised the dam crest to elev. 5443.0 feet

Hydraulics

Normal Water Surface Elev: ................5430.0 ft

Hydraulic Height: .................................. 198.0 ft

Service Spillway Type:

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

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

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

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

Capacity at Elev: .0 ft, 0 cfs

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

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

Outlet Works Capacity at

Elevation 0 ft., ..................................... None

Hydrology

Drainage Area: .................................. 17.0 sq mi

Hydrometeorological Report HMR 55

Flood Type: ...............................Winter General

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

Probable Maximum Flood (PMF) Report:

Peak Inflow: ..................................... 96,800 cfs

Inflow Volume: ......................... 21,520 acre-ft

Flow Duration: ....................................... 14 hrs

PMF Routing MWS Elev.: ........................ NA

Initial Routing Elev: ........................... 5430.0 ft

Study Date: ............................. December 1982

Power Generation

Power Generation at Dam Site - None

Bureau of Reclamation Power Program

Narration

Geology

The formations at Spring Canyon Dam are the same as at Soldier Canyon and Dixon Canyon except that the axis of the dam extends between the outcrops on the middle Dakota sandstone instead of the upper sandstone. The result is that a greater proportion of the foundation rock is Morrison shale and that the upper shale of the Dakota Formation is practically all outside of and downstream of the embankment area. Further differences are that the cutoff trenches will be partly in Morrison shales instead of entirely in Dakota formation as at Soldier Creek and Dixon Canyons.

Other Dams or Dikes which enclose Horsetooth Reservoir

1) Soldier Canyon Dam
2) Dixon Dam
3) Satanka Dike
4) Horsetooth Dam

Links

| Recreation |

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

| Owner: Bureau of Reclamation, Eastern Colorado Area Office,
11056 West County Road 18E, Loveland, CO 80537-9711, (970) 667-4410

| Operator: Northern Colorado Water Conservancy District,
PO Box 679, Loveland, CO 80539, (970) 667-2437