Todd #1 is an earth dam located in Custer County, Montana, built in 1936. It carries a Low hazard potential classification.
Dam profile
NID height · 19 ft19 ft tall and 400 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 Todd #1
The primary purpose of Todd #1 is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Lewis Todd (private). It impounds the West Forty Creek near Mizpah.
The dam stands 19 feet tall and stretches 400 feet across, and has a maximum storage capacity of 158 acre-feet. 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.
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 | Mizpah |
| River/Stream | West Forty Creek |
| Coordinates | 46.07310, -105.35390 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 19 ft |
| Dam Height | 19 ft |
| Dam Length | 400 ft |
| Year Completed | 1936 (90 years old) |
Storage & Hydraulics
| NID Storage | 158 acre-ft |
| Max Storage | 158 acre-ft |
| Normal Storage | 66 acre-ft |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Lewis Todd |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT00101 |
| Federal ID | MT00101 |
| More Info | State Dam Safety Program |