Vancil
Vancil is an earth dam located in Morgan County, Colorado, built in 1990. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Vancil
The primary purpose of Vancil is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Riverside Irrigation District (don Chapman) (private). It impounds the South Platte-os near Snyder.
The dam stands 53 feet tall and stretches 6,425 feet across, creates a reservoir covering 306 acres, has a maximum storage capacity of 9,100 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1990, the structure is 36 years old.
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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 11/09/2021.
At 53 feet, this dam is taller than 94% of dams nationwide.
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Location
| State | Colorado |
| County | Morgan |
| Nearest City | Snyder |
| River/Stream | South Platte-os |
| Coordinates | 40.36202, -103.64221 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 53 ft |
| Dam Height | 40 ft |
| Dam Length | 6,425 ft |
| Year Completed | 1990 (36 years old) |
Storage & Hydraulics
| NID Storage | 9,100 acre-ft |
| Max Storage | 9,100 acre-ft |
| Normal Storage | 6,409 acre-ft |
| Surface Area | 306 acres |
| Drainage Area | 2 sq mi |
| Spillway Type | None |
Ownership & Safety
| Purpose | Irrigation |
| Owner | RIVERSIDE IRRIGATION DISTRICT (DON CHAPMAN) |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 11/09/2021 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CO02665 |
| Federal ID | CO02665 |
| More Info | State Dam Safety Program |