Washington CO Road Dam 3-74-7

TR- WEST FORK CROOKED CREEK· Washington, Iowa· Built 2002· Earth· 36 ft tall
Low Hazard Grade Stabilization Local Government

Key Takeaway

Washington CO Road Dam 3-74-7 is classified as low hazard in Iowa. It was completed in 2002 and is 24 years old. Its primary use is grade stabilization.

Physical Details

Dam Height 36 ft (taller than 74.2% in IA)
Dam Length825 ft
Dam TypeEarth
Max Storage634 acre-ft
Normal Storage137 acre-ft
Surface Area22 acres
Drainage Area2 sq mi
Max Discharge0 cfs
Year Completed2002 (24 years old)
NID IDIA03870

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

Washington County

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Washington CO Road Dam 3-74-7?

Washington CO Road Dam 3-74-7 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 Washington CO Road Dam 3-74-7?

Washington CO Road Dam 3-74-7 is owned by Washington County (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Washington CO Road Dam 3-74-7 built?

Washington CO Road Dam 3-74-7 was completed in 2002, making it 24 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 Washington CO Road Dam 3-74-7?

Washington CO Road Dam 3-74-7 serves the following purposes: Grade Stabilization. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Washington CO Road Dam 3-74-7?

Washington CO Road Dam 3-74-7 has a dam height of 36 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.