Middle Fork Obion #4 Dam

Middle Fork Obion #4 Dam is an earth dam located in Henry County, Tennessee, built in 1968. It carries a Low hazard potential classification and has a satisfactory condition assessment.

Hazard potentialLowFailure would cause limited damage
ConditionSatisfactoryBest of 4 ratings
Emergency action planNot reported
Last inspection11/15/2023
Height31 ft
Built196858 years ago

Dam profile

NID height · 31 ft
31 FT TWO-STORY HOUSEMEDIAN U.S. DAM · 24 FT

31 ft tall and 800 ft long, taller than 72% of U.S. dams with a recorded height. 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 Middle Fork Obion #4 Dam

Middle Fork Obion #4 Dam is a dam in Henry, Tennessee. The dam is owned by Middle Fork Obion W.d. (local government). It impounds the Middle Fork Obion River near Sharon.

The dam stands 31 feet tall and stretches 800 feet across, creates a reservoir covering 13 acres, has a maximum storage capacity of 493 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1968, 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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 11/15/2023.

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Location

StateTennessee
CountyHenry
Nearest CitySharon
River/StreamMiddle Fork Obion River
Coordinates36.28694, -88.41556

Physical Characteristics

Dam TypeEarth
NID Height31 ft
Dam Length800 ft
Year Completed1968 (58 years old)

Storage & Hydraulics

NID Storage493 acre-ft
Max Storage493 acre-ft
Normal Storage54 acre-ft
Surface Area13 acres
Drainage Area1 sq mi
Spillway TypeUncontrolled

Ownership & Safety

OwnerMiddle Fork Obion W.d.
Owner TypeLocal Government
Hazard ClassificationLow
Condition AssessmentSatisfactory
Last Inspection11/15/2023
Emergency Action PlanNot Required

Identifiers

NID IDTN07904
Federal IDTN07904
More InfoState Dam Safety Program