Four-h Recreation Dam

Four-h Recreation Dam is an earth dam located in Louisa County, Iowa, built in 1977. It carries a Low hazard potential classification.

Hazard potentialLowFailure would cause limited damage
ConditionNot assessed
Emergency action planNot reported
Last inspection04/07/1977
Height35 ft
Built197749 years ago

Dam profile

NID height · 35 ft
35 FT TWO-STORY HOUSEMEDIAN U.S. DAM · 24 FT

35 ft tall and 183 ft long, taller than 80% 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 Four-h Recreation Dam

The primary purpose of Four-h Recreation Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Iowa 4h Foundation (private). It impounds the Tr-muscatine Slough near Muscatine Lake.

The dam stands 35 feet tall and stretches 183 feet across, creates a reservoir covering 4 acres, has a maximum storage capacity of 70 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1977, the structure is 49 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. The most recent inspection on record was 04/07/1977. That was over 49 years ago.

At 35 feet, this dam is taller than 80% of dams nationwide.

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Location

StateIowa
CountyLouisa
Nearest CityMuscatine Lake
River/StreamTr-muscatine Slough
Coordinates41.26290, -91.15670

Physical Characteristics

Dam TypeEarth
NID Height35 ft
Dam Height35 ft
Dam Length183 ft
Year Completed1977 (49 years old)

Storage & Hydraulics

NID Storage70 acre-ft
Max Storage70 acre-ft
Normal Storage34 acre-ft
Surface Area4 acres
Drainage Area0 sq mi
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerIowa 4h Foundation
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentNot assessed
Last Inspection04/07/1977
Emergency Action PlanNot Required

Identifiers

NID IDIA01587
Federal IDIA01587
More InfoState Dam Safety Program