La Plata New City Dam

La Plata New City Dam is an earth dam located in Macon County, Missouri, built in 1980. It carries a Low hazard potential classification and has a satisfactory condition assessment.

About La Plata New City Dam

The primary purpose of La Plata New City Dam is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by City Of La Plata (local government). It impounds the Trtitus Creek near Sue City.

The dam stands 43 feet tall and stretches 1,000 feet across, creates a reservoir covering 81 acres, has a maximum storage capacity of 929 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1980, the structure is 46 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 01/10/2023.

At 43 feet, this dam is taller than 89% of dams nationwide.

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Low HazardSatisfactory ConditionEmergency Action Plan: No

Location

StateMissouri
CountyMacon
Nearest CitySue City
River/StreamTrtitus Creek
Coordinates40.01213, -92.42967

Physical Characteristics

Dam TypeEarth
NID Height43 ft
Dam Height43 ft
Dam Length1,000 ft
Year Completed1980 (46 years old)

Storage & Hydraulics

NID Storage929 acre-ft
Max Storage929 acre-ft
Normal Storage667 acre-ft
Surface Area81 acres
Drainage Area1 sq mi
Max Discharge1,030 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeWater Supply
OwnerCITY OF LA PLATA
Owner TypeLocal Government
Hazard ClassificationLow
Condition AssessmentSatisfactory
Last Inspection01/10/2023
Emergency Action PlanNo

Identifiers

NID IDMO12126
Federal IDMO12126
More InfoState Dam Safety Program

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