Fairfield Water Works Dam No 1

TR-CEDAR CREEK· Jefferson, Iowa· Built 1888· Earth· 40 ft tall
Significant Hazard Water Supply Local Government

Key Takeaway

Fairfield Water Works Dam No 1 is classified as significant hazard in Iowa. It was completed in 1888 and is 138 years old. Its primary use is water supply. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 40 ft (taller than 84% in IA)
Dam Length500 ft
Dam TypeEarth
Max Storage350 acre-ft
Normal Storage292 acre-ft
Surface Area24 acres
Drainage Area0 sq mi
Max Discharge0 cfs
Year Completed1888 (138 years old)
NID IDIA01349

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: May 14, 2018
State Regulated: Yes
Regulatory Agency: IOWA DNR

Ownership

City of Fairfield

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Fairfield Water Works Dam No 1?

Fairfield Water Works Dam No 1 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 Fairfield Water Works Dam No 1?

Fairfield Water Works Dam No 1 is owned by City of Fairfield (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Fairfield Water Works Dam No 1 built?

Fairfield Water Works Dam No 1 was completed in 1888, making it 138 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 Fairfield Water Works Dam No 1?

Fairfield Water Works Dam No 1 serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Fairfield Water Works Dam No 1?

Fairfield Water Works Dam No 1 has a dam height of 40 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 Fairfield Water Works Dam No 1 last inspected?

Fairfield Water Works Dam No 1 was last inspected on May 14, 2018. 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.