Grell Pond Dam

TR-MAPLE RIVER· Ida, Iowa· Built 1958· Earth· 26 ft tall
Significant Hazard Fire Protection Stock Or Small Fish Pond Private

Key Takeaway

Grell Pond Dam is classified as significant hazard in Iowa. It was completed in 1958 and is 68 years old. Its primary use is fire protection. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 26 ft (taller than 24.7% in IA)
Dam Length387 ft
Dam TypeEarth
Max Storage109 acre-ft
Normal Storage39 acre-ft
Surface Area6 acres
Drainage Area1 sq mi
Max Discharge0 cfs
Year Completed1958 (68 years old)
NID IDIA00514

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 3, 2015
State Regulated: Yes
Regulatory Agency: IOWA DNR

Ownership

Fred C Grell

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Grell Pond Dam?

Grell Pond Dam 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 Grell Pond Dam?

Grell Pond Dam is owned by Fred C Grell (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Grell Pond Dam built?

Grell Pond Dam was completed in 1958, making it 68 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 Grell Pond Dam?

Grell Pond Dam serves the following purposes: Fire Protection, Stock, Or Small Fish Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Grell Pond Dam?

Grell Pond Dam 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 Grell Pond Dam last inspected?

Grell Pond Dam was last inspected on November 3, 2015. 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.