Seper Lake Dam

Seper Lake Dam is an earth dam located in Montgomery County, Missouri, built in 1954. It carries a Low hazard potential classification and has a satisfactory condition assessment.

About Seper Lake Dam

The primary purpose of Seper Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by John Seper (private). It impounds the Tr-whipporwill Creek near New Haven.

The dam stands 40 feet tall and stretches 200 feet across, creates a reservoir covering 4 acres, has a maximum storage capacity of 53 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1954, 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 10/31/2018.

At 40 feet, this dam is taller than 87% of dams nationwide.

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Low HazardSatisfactory ConditionEmergency Action Plan: No

Location

StateMissouri
CountyMontgomery
Nearest CityNew Haven
River/StreamTr-whipporwill Creek
Coordinates38.86426, -91.44821

Physical Characteristics

Dam TypeEarth
NID Height40 ft
Dam Height40 ft
Dam Length200 ft
Year Completed1954 (72 years old)

Storage & Hydraulics

NID Storage53 acre-ft
Max Storage53 acre-ft
Normal Storage49 acre-ft
Surface Area4 acres
Drainage Area0 sq mi
Max Discharge187 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerJOHN SEPER
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentSatisfactory
Last Inspection10/31/2018
Emergency Action PlanNo

Identifiers

NID IDMO11499
Federal IDMO11499
More InfoState Dam Safety Program

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