L. Ingalls No.2 is an earth dam located in Meade County, South Dakota, built in 1949. It carries a Low hazard potential classification.
Dam profile
NID height · 21 ft21 ft tall and 480 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 L. Ingalls No.2
The primary purpose of L. Ingalls No.2 is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is owned by Lawrence Ingalls (private). It impounds the Tr Cheyenne.
The dam stands 21 feet tall and stretches 480 feet across, and has a maximum storage capacity of 84 acre-feet. Completed in 1949, 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 | South Dakota |
| County | Meade |
| Nearest City | None |
| River/Stream | Tr Cheyenne |
| Coordinates | 44.95999, -102.68999 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 21 ft |
| Dam Height | 21 ft |
| Dam Length | 480 ft |
| Year Completed | 1949 (77 years old) |
Storage & Hydraulics
| NID Storage | 84 acre-ft |
| Max Storage | 84 acre-ft |
| Normal Storage | 37 acre-ft |
| Max Discharge | 1,200 cfs |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Lawrence Ingalls |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | SD00372 |
| Federal ID | SD00372 |
| More Info | State Dam Safety Program |