Clarks Lake, also known as North Poudre #12 & #13 and Mtn Supply #12, is a privately owned reservoir located in Larimer County, Colorado, near the city of Wellington.
This Earth-type dam was completed in 1904 for irrigation purposes, with a height of 26 feet and a storage capacity of 1985 acre-feet. The reservoir covers an area of 250 acres and is fed by the North Fork Poudre river.
Despite its age, Clarks Lake has been well-maintained, with regular inspections and satisfactory condition assessments. The dam has a significant hazard potential, but the risk is considered moderate with appropriate risk management measures in place. The spillway is uncontrolled with a width of 305 feet, and the maximum discharge capacity is 6421 cubic feet per second.
Water resource and climate enthusiasts will find Clarks Lake to be a fascinating example of early 20th-century irrigation infrastructure in Colorado. Its historical significance, engineering design, and ongoing management practices make it a valuable case study for understanding the intersection of water resources and climate resilience in the region.
Wind
Humidity
Year Completed |
1904 |
Dam Length |
2500 |
Dam Height |
26 |
River Or Stream |
NORTH FORK POUDRE |
Primary Dam Type |
Earth |
Surface Area |
250 |
Hydraulic Height |
25 |
Drainage Area |
1 |
Nid Storage |
1985 |
Structural Height |
33 |
Hazard Potential |
Significant |
Nid Height |
33 |
San Joaquin R Bl Friant Ca
|
818cfs |
Nf Willow C Nr Sugar Pine Ca
|
416cfs |
Big C Div Nr Fish Camp Ca
|
0cfs |
San Joaquin R Nr Mendota Ca
|
149cfs |
Merced R A Pohono Bridge Nr Yosemite Ca
|
1430cfs |
Turlock Cn Nr La Grange Ca
|
1140cfs |
| Location | Reservations | Toilets |
|---|---|---|
Cordoniz Campground
|
||
Wildcat Primitive Campground
|
||
Cordoniz Group Area North
|
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Cordoniz Group Area South
|
||
Codorniz Rec Area
|
||
Hidden View Campground
|