Groth Pumping System is an earth dam located in Larimer County, Colorado, built in 1951. It carries a Low hazard potential classification.
Dam profile
NID height · 20 ft20 ft tall and 750 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Groth Pumping System
The primary purpose of Groth Pumping System is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Garrel Loban (private). It impounds the Indian Creek near Windsor.
The dam stands 20 feet tall and stretches 750 feet across, creates a reservoir covering 10 acres, has a maximum storage capacity of 85 acre-feet, and collects water from a drainage area of 24 square miles. Completed in 1951, 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. The most recent inspection on record was 11/21/2022.
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Location
| State | Colorado |
| County | Larimer |
| Nearest City | Windsor |
| River/Stream | Indian Creek |
| Coordinates | 40.69940, -104.97269 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 750 ft |
| Year Completed | 1951 (75 years old) |
Storage & Hydraulics
| NID Storage | 85 acre-ft |
| Max Storage | 85 acre-ft |
| Normal Storage | 50 acre-ft |
| Surface Area | 10 acres |
| Drainage Area | 24 sq mi |
| Max Discharge | 1,000 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Garrel Loban |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 11/21/2022 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | CO02016 |
| Federal ID | CO02016 |
| More Info | State Dam Safety Program |