Upper Turtle R.Fld.Ret. 7

South Branch Turtle River· Grand Forks, North Dakota· Built 1973· Earth· 30 ft tall
Low Hazard Flood Risk Reduction Local Government

Key Takeaway

Upper Turtle R.Fld.Ret. 7 is classified as low hazard in North Dakota. It was completed in 1973 and is 53 years old. Its primary use is flood risk reduction.

Physical Details

Dam Height 30 ft (taller than 86.1% in ND)
Dam Length4,440 ft
Dam TypeEarth
Max Storage1.4K acre-ft
Normal Storage47 acre-ft
Surface Area14 acres
Drainage Area5 sq mi
Year Completed1973 (53 years old)
NID IDND00389

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: August 14, 2013
State Regulated: Yes
Regulatory Agency: ND DWR

Ownership

Grand Forks County WRB

Local Government

Nearby Dams

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Grand Forks CO Com. 1

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Kolding Dam

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Upper Turtle River Flood Ret. 5

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Little Goose Dam

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Upper Turtle River Flood Ret. 4

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Halverson Dam; Vernon

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Niagra Township Dam 2

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Frequently Asked Questions

What is the hazard classification of Upper Turtle R.Fld.Ret. 7?

Upper Turtle R.Fld.Ret. 7 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 Upper Turtle R.Fld.Ret. 7?

Upper Turtle R.Fld.Ret. 7 is owned by Grand Forks County WRB (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Upper Turtle R.Fld.Ret. 7 built?

Upper Turtle R.Fld.Ret. 7 was completed in 1973, making it 53 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 Upper Turtle R.Fld.Ret. 7?

Upper Turtle R.Fld.Ret. 7 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 Upper Turtle R.Fld.Ret. 7?

Upper Turtle R.Fld.Ret. 7 has a dam height of 30 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 Upper Turtle R.Fld.Ret. 7 last inspected?

Upper Turtle R.Fld.Ret. 7 was last inspected on August 14, 2013. 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.