De France
De France is an earth dam located in Weld County, Colorado, built in 1883. It carries a Low hazard potential classification and has a fair condition assessment.
About De France
The primary purpose of De France is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Fred Weiss, (private). It impounds the Little Thompson River-os near Johnstown.
The dam stands 15 feet tall and stretches 960 feet across, creates a reservoir covering 25 acres, and has a maximum storage capacity of 350 acre-feet. Completed in 1883, the structure is over a century old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected 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. The most recent inspection on record was 06/15/2016.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Colorado |
| County | Weld |
| Nearest City | Johnstown |
| River/Stream | Little Thompson River-os |
| Coordinates | 40.33501, -105.01723 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 15 ft |
| Dam Height | 15 ft |
| Dam Length | 960 ft |
| Year Completed | 1883 (143 years old) |
Storage & Hydraulics
| NID Storage | 350 acre-ft |
| Max Storage | 350 acre-ft |
| Normal Storage | 260 acre-ft |
| Surface Area | 25 acres |
| Max Discharge | 450 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | FRED WEISS, |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 06/15/2016 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | CO01182 |
| Federal ID | CO01182 |
| More Info | State Dam Safety Program |