Otto Silvan
Otto Silvan is an earth dam located in Chouteau County, Montana, built in 1964. It carries a Low hazard potential classification.
About Otto Silvan
The primary purpose of Otto Silvan is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Otto H Silvan (private). It impounds the Tr-eagle Creek.
The dam stands 9 feet tall and stretches 377 feet across, has a maximum storage capacity of 137 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1964, 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.
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Location
| State | Montana |
| County | Chouteau |
| Nearest City | None |
| River/Stream | Tr-eagle Creek |
| Coordinates | 47.93100, -109.98860 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 9 ft |
| Dam Height | 9 ft |
| Dam Length | 377 ft |
| Year Completed | 1964 (62 years old) |
Storage & Hydraulics
| NID Storage | 137 acre-ft |
| Max Storage | 137 acre-ft |
| Normal Storage | 65 acre-ft |
| Drainage Area | 1 sq mi |
| Max Discharge | 285 cfs |
Ownership & Safety
| Purpose | Irrigation |
| Owner | OTTO H SILVAN |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT01242 |
| Federal ID | MT01242 |
| More Info | State Dam Safety Program |