Carrolton 12

Root River-TR· Fillmore, Minnesota· Earth· 26 ft tall
Low Hazard Flood Risk Reduction Private

Key Takeaway

Carrolton 12 is classified as low hazard in Minnesota. Its primary use is flood risk reduction.

Physical Details

Dam Height 26 ft (taller than 74.2% in MN)
Dam TypeEarth
Max Storage24 acre-ft
Normal Storage1 acre-ft
Drainage Area1 sq mi
NID IDMN01578

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 24, 2022
State Regulated: Yes
Regulatory Agency: MNDNR EWR

Ownership

Shanahan, Brent ETAL

Private

Nearby Dams

Horihan-Herrick

Fillmore, MN

Low Hazard 34 ft

Horihan-Hazel Group

Fillmore, MN

Significant Hazard 29 ft

Lanesboro

Fillmore, MN

High Hazard 34 ft

Sorenson Group

Fillmore, MN

Low Hazard 26 ft

Lawstuen Pond

Fillmore, MN

Low Hazard 26 ft

Fillmore County Road 21

Fillmore, MN

Significant Hazard 31 ft

Holt 19

Fillmore, MN

Low Hazard 32 ft

Geoffrey Griffin

Fillmore, MN

Low Hazard 36 ft

Frequently Asked Questions

What is the hazard classification of Carrolton 12?

Carrolton 12 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 Carrolton 12?

Carrolton 12 is owned by Shanahan, Brent ETAL (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

What is the primary purpose of Carrolton 12?

Carrolton 12 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 Carrolton 12?

Carrolton 12 has a dam height of 26 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 Carrolton 12 last inspected?

Carrolton 12 was last inspected on May 24, 2022. 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.