Wayne County Roadgrade Dam 3-70-21

TR- LOST BRANCH· Wayne, Iowa· Built 1967· Earth· 23 ft tall
Low Hazard Other Local Government

Key Takeaway

Wayne County Roadgrade Dam 3-70-21 is classified as low hazard in Iowa. It was completed in 1967 and is 59 years old. Its primary use is other.

Physical Details

Dam Height 23 ft (taller than 13.3% in IA)
Dam Length484 ft
Dam TypeEarth
Max Storage62 acre-ft
Normal Storage16 acre-ft
Surface Area3 acres
Drainage Area0 sq mi
Max Discharge0 cfs
Year Completed1967 (59 years old)
NID IDIA02697

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

Wayne County Board of Supervisors

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Wayne County Roadgrade Dam 3-70-21?

Wayne County Roadgrade Dam 3-70-21 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 Wayne County Roadgrade Dam 3-70-21?

Wayne County Roadgrade Dam 3-70-21 is owned by Wayne County Board of Supervisors (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Wayne County Roadgrade Dam 3-70-21 built?

Wayne County Roadgrade Dam 3-70-21 was completed in 1967, making it 59 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 Wayne County Roadgrade Dam 3-70-21?

Wayne County Roadgrade Dam 3-70-21 serves the following purposes: Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Wayne County Roadgrade Dam 3-70-21?

Wayne County Roadgrade Dam 3-70-21 has a dam height of 23 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.