Potato Creek State Park Dam

Potato Creek State Park Dam is an earth dam located in St. Joseph County, Indiana, built in 1977. It carries a High hazard potential classification and has a fair condition assessment.

About Potato Creek State Park Dam

The primary purpose of Potato Creek State Park Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Jim Webb (state). It impounds the Potato Creek.

The dam stands 42 feet tall and stretches 1,500 feet across, creates a reservoir covering 345 acres, has a maximum storage capacity of 9,000 acre-feet, and collects water from a drainage area of 11 square miles. Completed in 1977, the structure is 49 years old.

This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 06/14/2018. That was 7 years ago, which is on the longer end for a high-hazard structure.

At 42 feet, this dam is taller than 89% of dams nationwide.

Living Downstream

If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Indiana dam safety program can provide more specific information about emergency planning for this structure.

Search for dams near your address to see all dams in your area with hazard classifications and safety data.

High HazardFair ConditionEmergency Action Plan: Yes

Location

StateIndiana
CountySt. Joseph
River/StreamPotato Creek
Coordinates41.54930, -86.37092

Physical Characteristics

Dam TypeEarth
NID Height42 ft
Dam Height42 ft
Dam Length1,500 ft
Year Completed1977 (49 years old)

Storage & Hydraulics

NID Storage9,000 acre-ft
Max Storage9,000 acre-ft
Normal Storage3,220 acre-ft
Surface Area345 acres
Drainage Area11 sq mi
Max Discharge10,770 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerJim Webb
Owner TypeState
Hazard ClassificationHigh
Condition AssessmentFair
Last Inspection06/14/2018
Emergency Action PlanYes

Identifiers

NID IDIN00517
Federal IDIN00517
More InfoState Dam Safety Program

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