Green Mountain Dam

Overview

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
RegionFacilities in Great Plains | Great Plains Home Page
StateColorado
CountySummit
ProjectColorado-Big Thompson
Dam Type
ReservoirGreen Mountain
WatercourseBlue River
Location
Longitude-106.3300
Latitude39.8783
Net Generation21,214,000 kWh
Original Construction1938-1943
Modified Construction
National ID NumberCO01658
Hydrologic Unit Code

Dimensions
Structural Height309.0 ft
Hydraulic Height (Normal Operating Depth at Dam)264.0 ft
Top Parapet (Elevation)
Spillway Crest Elevation7950.0 ft
Crest Elevation7960.0 ft
Crest Length1150.0 ft
Crest Width
Base Width
Volume of Dam Construction Materials
Streambed at Dam Axis7696.0 ft
Top of Exclusive Flood Control Pool (Elevation)
Top of Joint Use Pool (Elevation)
Top of Active Conservation Pool (Elevation)7950.0 ft
Top of Inactive Conservation Pool (Elevation)7870.0 ft
Top of Dead Storage Pool (Elevation)7800.0 ft

Hydraulics & Hydrology
Volume
Total Water Storage at Elevation
Maximum Water Surface Elevation
Normal Water Surface Elevation7950.0 ft
Spillway Type
Auxiliary SpillwayNo
Spillway Capacity at Elevation25000 cfs at 7950.0 ft
Auxiliary Spillway Capacity at Elevation
Uncontrolled Spillway Capacity at Elevation
Outlet Works Capacity at Elevation1530 cfs at 7950.0 ft
Diversion Capacity at Elevation
Drainage Area598.0 sq mi
Hydrometeorological Report (HMR)HMR 49
Probable Maximum Flood (PMF) Report

Contact Information
Owner
TitleArea Office Manager
OrganizationEastern Colorado Area Office
Address11056 W. County Rd 18E
CityLoveland, CO 80537-9711
Phone (Fax)970 663-3212
Phone (Office)970 667-4410
Operator
TitleArea Office Manager
OrganizationEastern Colorado Area Office
Address11056 W. County Rd 18E
CityLoveland, CO 80537-9711
Phone (Fax)970 663-3212
Phone (Office)970 667-4410


Last updated: Jan 12, 2015