Chapman Dam
Chapman Dam is a gravity dam located in Valley County, Montana, built in 2003. It carries a Low hazard potential classification.
About Chapman Dam
Chapman Dam is a dam in Valley, Montana. The dam is owned by Doi Blm (federal).
The dam stands 14 feet tall and stretches 793 feet across, creates a reservoir covering 18 acres, and has a maximum storage capacity of 54 acre-feet. Completed in 2003, the structure is relatively new.
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 07/23/2020.
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Low HazardNot Rated ConditionEmergency Action Plan: Not Required
Location
| State | Montana |
| County | Valley |
| Coordinates | 48.26820, -106.74247 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 14 ft |
| Dam Length | 793 ft |
| Year Completed | 2003 (23 years old) |
Storage & Hydraulics
| NID Storage | 54 acre-ft |
| Max Storage | 54 acre-ft |
| Surface Area | 18 acres |
Ownership & Safety
| Owner | DOI BLM |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 07/23/2020 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT03890 |
| Federal ID | MT03890 |
| More Info | State Dam Safety Program |