Sunny Slope
Sunny Slope is an earth dam located in Larimer County, Colorado. It carries a Significant hazard potential classification and has a fair condition assessment.
About Sunny Slope
The primary purpose of Sunny Slope is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Sunny Slope Reservoir, Inc. (ivar Larson) (private). It impounds the Dry Creek near Berthoud.
The dam stands 16 feet tall and stretches 585 feet across, creates a reservoir covering 30 acres, has a maximum storage capacity of 664 acre-feet, and collects water from a drainage area of 1 square miles.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 07/19/2019.
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Location
| State | Colorado |
| County | Larimer |
| Nearest City | Berthoud |
| River/Stream | Dry Creek |
| Coordinates | 40.32564, -105.06593 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 16 ft |
| Dam Height | 16 ft |
| Dam Length | 585 ft |
Storage & Hydraulics
| NID Storage | 664 acre-ft |
| Max Storage | 664 acre-ft |
| Normal Storage | 480 acre-ft |
| Surface Area | 30 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 2,894 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | SUNNY SLOPE RESERVOIR, INC. (IVAR LARSON) |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Fair |
| Last Inspection | 07/19/2019 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CO01196 |
| Federal ID | CO01196 |
| More Info | State Dam Safety Program |