Edward Lanning #1

Edward Lanning #1 is an earth dam located in Carter County, Montana, built in 1970. It carries a Low hazard potential classification.

Hazard potentialLowFailure would cause limited damage
ConditionNot assessed
Emergency action planNot reported
Last inspectionNot reported
Height20 ft
Built197056 years ago

Dam profile

NID height · 20 ft
20 FT TWO-STORY HOUSEMEDIAN U.S. DAM · 24 FT

20 ft tall and 300 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 Edward Lanning #1

The primary purpose of Edward Lanning #1 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 Edward Lanning (private). It impounds the Deadman Creek near Lightening Flat.

The dam stands 20 feet tall and stretches 300 feet across, has a maximum storage capacity of 258 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1970, 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

StateMontana
CountyCarter
Nearest CityLightening Flat
River/StreamDeadman Creek
Coordinates45.07000, -104.83080

Physical Characteristics

Dam TypeEarth
NID Height20 ft
Dam Height20 ft
Dam Length300 ft
Year Completed1970 (56 years old)

Storage & Hydraulics

NID Storage258 acre-ft
Max Storage258 acre-ft
Normal Storage109 acre-ft
Drainage Area0 sq mi
Max Discharge1,000 cfs

Ownership & Safety

PurposeFire Protection, Stock, Or Small Fish Pond
OwnerEdward Lanning
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentNot assessed
Emergency Action PlanNot Required

Identifiers

NID IDMT02962
Federal IDMT02962
More InfoState Dam Safety Program