Neff Lake
Neff Lake is an earth dam located in Weld County, Colorado. It carries a Low hazard potential classification.
About Neff Lake
The primary purpose of Neff Lake is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Highland Valley Reservoir And Ditch Company (johns (private). It impounds the Cache La Poudre River near Greeley.
The dam stands 10 feet tall and stretches 818 feet across, creates a reservoir covering 45 acres, has a maximum storage capacity of 300 acre-feet, and collects water from a drainage area of 42 square miles.
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. The most recent inspection on record was 09/25/1991. That was over 34 years ago.
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Location
| State | Colorado |
| County | Weld |
| Nearest City | Greeley |
| River/Stream | Cache La Poudre River |
| Coordinates | 40.48195, -104.76833 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 10 ft |
| Dam Height | 10 ft |
| Dam Length | 818 ft |
Storage & Hydraulics
| NID Storage | 300 acre-ft |
| Max Storage | 300 acre-ft |
| Normal Storage | 100 acre-ft |
| Surface Area | 45 acres |
| Drainage Area | 42 sq mi |
| Spillway Type | None |
Ownership & Safety
| Purpose | Irrigation |
| Owner | HIGHLAND VALLEY RESERVOIR AND DITCH COMPANY (JOHNS |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 09/25/1991 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | CO02354 |
| Federal ID | CO02354 |
| More Info | State Dam Safety Program |