Brillion Ryan Street
Brillion Ryan Street is an earth dam located in Calumet County, Wisconsin, built in 1997. It carries a High hazard potential classification and has a fair condition assessment.
About Brillion Ryan Street
The primary purpose of Brillion Ryan Street is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by City Of Brillion (local government). It impounds the Trib To Spring Creek near Brillion.
The dam stands 15 feet tall, and has a maximum storage capacity of 111 acre-feet. Completed in 1997, the structure is 29 years old.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 06/22/2021.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Wisconsin dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Wisconsin |
| County | Calumet |
| Nearest City | Brillion |
| River/Stream | Trib To Spring Creek |
| Coordinates | 44.18230, -88.05130 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 15 ft |
| Dam Height | 15 ft |
| Year Completed | 1997 (29 years old) |
Storage & Hydraulics
| NID Storage | 111 acre-ft |
| Max Storage | 111 acre-ft |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | City Of Brillion |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Fair |
| Last Inspection | 06/22/2021 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | WI01218 |
| Federal ID | WI01218 |
| More Info | State Dam Safety Program |