Bay City 1 is an earth dam located in Pierce County, Wisconsin, built in 1965. It carries a Low hazard potential classification.
Dam profile
NID height · 42 ft42 ft tall and 420 ft long, taller than 88% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Bay City 1
The primary purpose of Bay City 1 is debris control. The dam is designed to catch sediment, rocks, and debris carried by flowing water — particularly important in areas prone to mudslides or heavy erosion. The dam is owned by Pierce County (local government). It impounds the Tributary - Mississippi River near Bay City.
The dam stands 42 feet tall and stretches 420 feet across, creates a reservoir covering 12 acres, has a maximum storage capacity of 340 acre-feet, and collects water from a drainage area of 4 square miles. Completed in 1965, the structure is well into its service life at over 50 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. An emergency action plan is in place for this dam. The most recent inspection on record was 05/09/2012. That was over 14 years ago.
At 42 feet, this dam is taller than 88% of dams nationwide.
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Location
| State | Wisconsin |
| County | Pierce |
| Nearest City | Bay City |
| River/Stream | Tributary - Mississippi River |
| Coordinates | 44.62184, -92.50807 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 42 ft |
| Dam Height | 42 ft |
| Dam Length | 420 ft |
| Year Completed | 1965 (61 years old) |
Storage & Hydraulics
| NID Storage | 340 acre-ft |
| Max Storage | 340 acre-ft |
| Normal Storage | 80 acre-ft |
| Surface Area | 12 acres |
| Drainage Area | 4 sq mi |
| Max Discharge | 199 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Debris Control |
| Owner | Pierce County |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 05/09/2012 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | WI00383 |
| Federal ID | WI00383 |
| More Info | State Dam Safety Program |