Venn #1 is an earth dam located in Custer County, Montana, built in 1936. It carries a Significant hazard potential classification.
Dam profile
NID height · 28 ft28 ft tall and 1,400 ft long, taller than 62% of U.S. dams with a recorded height. 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 Venn #1
The primary purpose of Venn #1 is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Charles Steadman (private). It impounds the Owen's Coulee near Kinsey.
The dam stands 28 feet tall and stretches 1,400 feet across, and has a maximum storage capacity of 818 acre-feet. Completed in 1936, the structure is well-established, with more than 75 years of service.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Montana |
| County | Custer |
| Nearest City | Kinsey |
| River/Stream | Owen's Coulee |
| Coordinates | 46.53660, -106.00730 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 28 ft |
| Dam Height | 28 ft |
| Dam Length | 1,400 ft |
| Year Completed | 1936 (90 years old) |
Storage & Hydraulics
| NID Storage | 818 acre-ft |
| Max Storage | 818 acre-ft |
| Normal Storage | 436 acre-ft |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Charles Steadman |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT00104 |
| Federal ID | MT00104 |
| More Info | State Dam Safety Program |