Giffin #2 (upper)
Giffin #2 (upper) is an earth dam located in Weld County, Colorado, built in 1952. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Giffin #2 (upper)
The primary purpose of Giffin #2 (upper) is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Gms Land And Cattle (gertsch, Mj) (private). It impounds the Lone Tree Creek near Nunn.
The dam stands 21 feet tall and stretches 565 feet across, creates a reservoir covering 15 acres, has a maximum storage capacity of 155 acre-feet, and collects water from a drainage area of 56 square miles. Completed in 1952, the structure is well into its service life at over 50 years 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 04/14/2016.
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Location
| State | Colorado |
| County | Weld |
| Nearest City | Nunn |
| River/Stream | Lone Tree Creek |
| Coordinates | 40.83917, -104.82583 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 21 ft |
| Dam Height | 21 ft |
| Dam Length | 565 ft |
| Year Completed | 1952 (74 years old) |
Storage & Hydraulics
| NID Storage | 155 acre-ft |
| Max Storage | 155 acre-ft |
| Normal Storage | 91 acre-ft |
| Surface Area | 15 acres |
| Drainage Area | 56 sq mi |
| Max Discharge | 4,590 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | GMS LAND AND CATTLE (GERTSCH, MJ) |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 04/14/2016 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | CO01103 |
| Federal ID | CO01103 |
| More Info | State Dam Safety Program |