Grubbs Dam

TR-WEST FORK MIDDLE NODAWAY R.· Adair, Iowa· Built 2000· Earth· 25 ft tall

Key Takeaway

Grubbs Dam is classified as low hazard in Iowa. It was completed in 2000 and is 26 years old. Its primary use is fire protection.

Physical Details

Dam Height 25 ft (taller than 19.3% in IA)
Dam Length635 ft
Dam TypeEarth
Max Storage131 acre-ft
Normal Storage68 acre-ft
Surface Area10 acres
Drainage Area0 sq mi
Max Discharge0 cfs
Year Completed2000 (26 years old)
NID IDIA03289

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
State Regulated: Yes
Regulatory Agency: IOWA DNR

Ownership

Lorne Grubbs

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Grubbs Dam?

Grubbs Dam 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 Grubbs Dam?

Grubbs Dam is owned by Lorne Grubbs (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Grubbs Dam built?

Grubbs Dam was completed in 2000, making it 26 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 Grubbs Dam?

Grubbs 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 Grubbs Dam?

Grubbs Dam has a dam height of 25 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.

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.