Pine Tree Pond

Mississippi River-TR· Washington, Minnesota· Built 1970· Earth· 10 ft tall
Low Hazard Flood Risk Reduction Local Government

Key Takeaway

Pine Tree Pond is classified as low hazard in Minnesota. It was completed in 1970 and is 56 years old. Its primary use is flood risk reduction.

Physical Details

Dam Height 10 ft (taller than 30.9% in MN)
Dam TypeEarth
Max Storage75 acre-ft
Surface Area4 acres
Drainage Area1 sq mi
Year Completed1970 (56 years old)
NID IDMN00938

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: November 2, 2017
State Regulated: Yes
Regulatory Agency: MNDNR EWR

Ownership

City of Cottage Grove

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Pine Tree Pond?

Pine Tree Pond 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 Pine Tree Pond?

Pine Tree Pond is owned by City of Cottage Grove (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Pine Tree Pond built?

Pine Tree Pond was completed in 1970, making it 56 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.

What is the primary purpose of Pine Tree Pond?

Pine Tree Pond 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 Pine Tree Pond?

Pine Tree Pond has a dam height of 10 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 Pine Tree Pond last inspected?

Pine Tree Pond was last inspected on November 2, 2017. 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.