Windspeed
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Flatiron, also known as Afterbay, is a federal-owned dam located in Larimer County, Colorado. Constructed in 1953 by the Bureau of Reclamation, this earth dam stands at a height of 86 feet, with a primary purpose of hydroelectric generation and irrigation. With a storage capacity of 1,136 acre-feet, Flatiron serves as a crucial water resource for the region.
Situated on Dry Creek-Tr and Chimney Hollow Creek, Flatiron plays a key role in managing water flow and storage in the area. The dam has a surface area of 381,500 square feet and drains an area of 7.42 square miles. Despite its high hazard potential, with a risk assessment rating of 2, Flatiron is regulated and inspected by the Bureau of Reclamation to ensure its structural integrity and safety.
For water resource and climate enthusiasts, Flatiron represents a significant infrastructure for water management in Colorado. With its hydroelectric capabilities and role in irrigation, this dam serves as a vital component of the region's water supply system. As a federally-owned and regulated structure, Flatiron plays a crucial role in safeguarding the surrounding communities from water-related risks and emergencies.
Storage 24hr Change | 2.58% |
Percent of Normal | 106% |
Minimum |
136 acre-ft
2001-11-06 |
Maximum |
938 acre-ft
1996-08-10 |
Average | 573 acre-ft |
Nid_Height | 86 |
Hydraulic_Height | 63 |
Drainage_Area | 7.42 |
Year_Completed | 1953 |
Dam_Height | 86 |
Hazard_Potential | High |
Structural_Height | 86 |
Primary_Dam_Type | Earth |
River_Or_Stream | DRY CREEK-TR, CHIMNEY HOLLOW CREEK |
Surface_Area | 381500 |
Nid_Storage | 1136 |
Dam_Length | 1725 |
Discharge | Stage | Elevation | |
LARAMIE RIVER AT LARAMIE
2024-04-11T01:00:00.000-06:00 |
89cfs | 4.45ft | 7128ft |
LARAMIE RIVER NEAR BOSLER
2016-06-18T01:45:00.000-06:00 |
1950cfs | 5.94ft | 7030ft |
ST. LOUIS CREEK NEAR FRASER
2025-02-22T00:30:00.000-07:00 |
5cfs | 1.26ft | 8989ft |
MOFFAT WATER TUNNEL AT EAST PORTAL
2025-02-22T02:30:00.000 |
7cfs | 0.28ft | 9226ft |
FRASER RIVER AT WINTER PARK
2025-02-13T01:00:00.000-07:00 |
13cfs | 0.7ft | 8944ft |
ELK CREEK AT UPPER STATION
2025-02-22T01:15:00.000-07:00 |
0cfs | 4.65ft | 9438ft |
BIG DRY CREEK AT WESTMINSTER
2025-02-22T00:30:00.000-07:00 |
7cfs | 1.18ft | 5211ft |