Patterson #2
Patterson #2 is an earth dam located in Delta County, Colorado, built in 1908. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Patterson #2
The primary purpose of Patterson #2 is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Leroux Creek Water Users Association (private). It impounds the Leroux Creek near Lazear.
The dam stands 16 feet tall and stretches 1,025 feet across, creates a reservoir covering 7 acres, and has a maximum storage capacity of 149 acre-feet. Completed in 1908, 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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 06/27/2018.
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Location
| State | Colorado |
| County | Delta |
| Nearest City | Lazear |
| River/Stream | Leroux Creek |
| Coordinates | 38.96041, -107.74506 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 16 ft |
| Dam Height | 16 ft |
| Dam Length | 1,025 ft |
| Year Completed | 1908 (118 years old) |
Storage & Hydraulics
| NID Storage | 149 acre-ft |
| Max Storage | 149 acre-ft |
| Normal Storage | 125 acre-ft |
| Surface Area | 7 acres |
| Max Discharge | 210 cfs |
| Spillway Type | None |
Ownership & Safety
| Purpose | Irrigation |
| Owner | LEROUX CREEK WATER USERS ASSOCIATION |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 06/27/2018 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | CO00608 |
| Federal ID | CO00608 |
| More Info | State Dam Safety Program |