Preston 21

Partridge Creek-TR· Fillmore, Minnesota· Rockfill· 29 ft tall
Low Hazard Flood Risk Reduction Private

Key Takeaway

Preston 21 is classified as low hazard in Minnesota. Its primary use is flood risk reduction.

Physical Details

Dam Height 29 ft (taller than 80.4% in MN)
Dam Length410 ft
Dam TypeRockfill
Max Storage41 acre-ft
Normal Storage10 acre-ft
Surface Area2 acres
Drainage Area0 sq mi
NID IDMN01787

Safety Information

Low Hazard

No probable loss of human life and low economic/environmental losses expected.

Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?

Emergency Action Plan: No
Last Inspection: May 22, 2018
State Regulated: Yes
Regulatory Agency: MNDNR EWR

Ownership

Wilson Farms of Fillmore

Private

Nearby Dams

Leslie Helickson Detention

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Miller Lange Pond

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Graves Pond

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Carimona Detention

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East Willow Creek J-1

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East Willow Creek Da-1

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Ruen Detention Group

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Amherst 20

Fillmore, MN

Low Hazard 18 ft

Frequently Asked Questions

What is the hazard classification of Preston 21?

Preston 21 is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Preston 21?

Preston 21 is owned by Wilson Farms of Fillmore (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

What is the primary purpose of Preston 21?

Preston 21 serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Preston 21?

Preston 21 has a dam height of 29 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.

When was Preston 21 last inspected?

Preston 21 was last inspected on May 22, 2018. Inspection dates indicate when a formal review occurred, not the results of that inspection.

Data from the National Inventory of Dams (NID) maintained by the US Army Corps of Engineers. Dam conditions may have changed since the last update. This site is not affiliated with USACE. Do not use for emergency planning — contact your local dam safety program.