Iverson Dam; Marvin

Dry Fork Dam· Williams, North Dakota· Built 1964· Earth· 35 ft tall
Significant Hazard Recreation Fish And Wildlife Pond Private

Key Takeaway

Iverson Dam; Marvin is classified as significant hazard in North Dakota. It was completed in 1964 and is 62 years old. Its primary use is recreation. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 35 ft (taller than 89.4% in ND)
Dam Length1,000 ft
Dam TypeEarth
Max Storage169 acre-ft
Normal Storage79 acre-ft
Surface Area10 acres
Drainage Area2 sq mi
Year Completed1964 (62 years old)
Year Modified2015
NID IDND00424

Safety Information

Significant Hazard

No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.

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

Emergency Action Plan: No
Last Inspection: November 6, 2020
State Regulated: Yes
Regulatory Agency: ND DWR

Ownership

Deon and Shana Iverson

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Iverson Dam; Marvin?

Iverson Dam; Marvin is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Iverson Dam; Marvin?

Iverson Dam; Marvin is owned by Deon and Shana Iverson (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Iverson Dam; Marvin built?

Iverson Dam; Marvin was completed in 1964, making it 62 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 Iverson Dam; Marvin?

Iverson Dam; Marvin serves the following purposes: Recreation, Fish And Wildlife Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Iverson Dam; Marvin?

Iverson Dam; Marvin has a dam height of 35 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 Iverson Dam; Marvin last inspected?

Iverson Dam; Marvin was last inspected on November 6, 2020. 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.