Shadow Mountain Dam

Shadow Mountain Dam
Location of Shadow Mountain Dam
Location	Grand County, near Granby, Colorado, USA
Coordinates
Construction began	1944
Opening date	1946
Operator(s)	U.S. Bureau of Reclamation
Dam and spillways
Type of dam	Zoned earthfill
Impounds	Colorado River
Height	63 ft (19 m)
Length	3,077 ft (938 m)
Spillway capacity	10,000 cu ft/s (280 m³/s)
Reservoir
Creates	Shadow Mountain Lake
Total capacity	18,400 acre feet (0.0227 km³)
Catchment area	187 sq mi (480 km²)
Power station
Hydraulic head	37 ft (11 m)

Shadow Mountain Dam is a zoned earthfill dam on the Colorado River in Grand County, Colorado. Constructed between 1944 and 1946, the Shadow Mountain Dam creates the Shadow Mountain Lake, with a structural height of 63 feet (19 m) and a drainage area of 187 square miles (480 km²). Shadow Mountain Lake is a holding reservoir for water pumped up from Lake Granby just to the south through the Granby Pumping Plant and Canal. Shadow Mountain Lake is connected by a short channel to the natural Grand Lake. The east portal of the Alva B. Adams Tunnel is located on Grand Lake. The Adams Tunnel diverts west slope water to the east slope of the Rocky Mountains for use in agriculture and to serve the populated areas of Colorado, including Denver.^[1]

References

^ "Colorado-Big Thompson Project". Retrieved 9 May 2011.

External links

USBR Shadow Mountain Dam Website

Colorado River system

Jurisdictions

United States
- Arizona
- California
- Colorado
- Nevada
- New Mexico
- Utah
- Wyoming
Mexico
- Baja California
- Sonora

Canyons

Byers Canyon
Gore Canyon
Red Gorge
Glenwood Canyon
De Beque Canyon
Horsethief Canyon
Ruby Canyon
Westwater Canyon
Cataract Canyon
Narrow Canyon
Glen Canyon
Grand Canyon
- Marble Canyon
- Granite Gorge
- Middle Granite Gorge
- Lower Granite Gorge
Grand Wash Canyon
Iceberg Canyon
Virgin Canyon
Boulder Canyon
Black Canyon
Pyramid Canyon
Mohave Canyon

Natural features

Tributaries

Engineering

Mainstem dams	Shadow Mountain Granby Windy Gap Grand Valley Price-Stubb Glen Canyon Hoover Davis Parker Headgate Rock Palo Verde Imperial Laguna Morelos

Major reservoirs	Fontenelle Reservoir Flaming Gorge Reservoir Blue Mesa Reservoir Navajo Lake Lake Powell Lake Mead Lake Mohave Lake Havasu Imperial Reservoir Theodore Roosevelt Lake San Carlos Lake

Aqueducts and canals	Grand Ditch Colorado River Aqueduct San Diego Aqueduct Central Arizona Project All-American Canal Coachella Canal

Water projects	Boulder Canyon Project Colorado-Big Thompson Project Colorado River Storage Project Grand Valley AVA Yuma Project

Designated areas

Categories

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Shadow Mountain Dam