Green Mountain Dam is on the western slope 13 miles southeast of Kremmling on the Blue River, a tributary of the Colorado. This dam provides replacement storage for water diverted by the project to the eastern slope. The dam is an earthfill structure, 309 feet high, with a crest length of 1,150 feet and a volume of 4,360,000 cubic yards. The reservoir has a total capacity of 154,600 acre-feet.
General
Project
Colorado-Big Thompson
Longitude
-106.3300
Latitude
39.8783
Reservoir
Green Mountain
National ID Number
CO01658
Watercourse
Blue River
Original Construction
1938-1943
Dimensions
Crest Elevation
7960.0 ft
Structural Height
309.0 ft
Hydraulic Height (Normal Operating Depth at Dam)
264.0 ft
Crest Length
1150.0 ft
Top of Active Conservation Pool (Elevation)
7950.0 ft
Top of Inactive Conservation Pool (Elevation)
7870.0 ft
Spillway Crest Elevation
7950.0 ft
Top of Dead Storage Pool (Elevation)
7800.0 ft
Streambed at Dam Axis
7696.0 ft
Hydraulics & Hydrology
Normal Water Surface Elevation
7950.0 ft
Spillway Capacity at Elevation
25000 cfs at 7950.0 ft
Auxiliary Spillway
No
Outlet Works Capacity at Elevation
1530 cfs at 7950.0 ft
Drainage Area
598.0 sq mi
Hydrometeorological Report (HMR)
HMR 49
Net Generation
21,214,000 kWh
Contact
Owner
Title: Area Office Manager Organization: Eastern Colorado Area Office Address: 11056 W. County Rd 18E City: Loveland, CO 80537-9711 Fax: 970-663-3212 Phone: 970-461-5410
Operator
Title: Area Office Manager Organization: Eastern Colorado Area Office Address: 11056 W. County Rd 18E City: Loveland, CO 80537-9711 Fax: 970-663-3212 Phone: 970-461-5410
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