Sagehorn Lake Dam is an earth dam located in Barton County, Missouri, built in 1936. It carries a Low hazard potential classification.
Dam profile
NID height · 20 ft20 ft tall. 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 Sagehorn Lake Dam
The primary purpose of Sagehorn Lake Dam is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Marvin Sagehorn (private). It impounds the Tr to Pettis Creek near Lamar.
The dam stands 20 feet tall, creates a reservoir covering 7 acres, has a maximum storage capacity of 79 acre-feet, and collects water from a drainage area of 400 square miles. Completed in 1936, the structure is well-established, with more than 75 years of service.
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.
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Location
| State | Missouri |
| County | Barton |
| Nearest City | Lamar |
| River/Stream | Tr to Pettis Creek |
| Coordinates | 37.45559, -94.22958 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Year Completed | 1936 (90 years old) |
Storage & Hydraulics
| NID Storage | 79 acre-ft |
| Max Storage | 79 acre-ft |
| Normal Storage | 79 acre-ft |
| Surface Area | 7 acres |
| Drainage Area | 400 sq mi |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Marvin Sagehorn |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO20170 |
| Federal ID | MO20170 |
| More Info | State Dam Safety Program |