Fairfield Water Works Dam No 1
Fairfield Water Works Dam No 1 is an earth dam located in Jefferson County, Iowa, built in 1888. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Fairfield Water Works Dam No 1
The primary purpose of Fairfield Water Works Dam No 1 is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by City Of Fairfield (local government). It impounds the Tr-cedar Creek near Fairfield.
The dam stands 40 feet tall and stretches 500 feet across, creates a reservoir covering 24 acres, has a maximum storage capacity of 350 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1888, the structure is over a century old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 07/03/2023.
At 40 feet, this dam is taller than 87% of dams nationwide.
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Location
| State | Iowa |
| County | Jefferson |
| Nearest City | Fairfield |
| River/Stream | Tr-cedar Creek |
| Coordinates | 41.01840, -91.95350 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 40 ft |
| Dam Height | 40 ft |
| Dam Length | 500 ft |
| Year Completed | 1888 (138 years old) |
Storage & Hydraulics
| NID Storage | 350 acre-ft |
| Max Storage | 350 acre-ft |
| Normal Storage | 292 acre-ft |
| Surface Area | 24 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | City of Fairfield |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 07/03/2023 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | IA01349 |
| Federal ID | IA01349 |
| More Info | State Dam Safety Program |