Rivers in Wisconsin
Sugar River at Brodhead
Below flood stage
4.42ftStage
Observed Tue, Sep 22, 11:00 AM CDT
- Flood stage
- 5.00 ft
- Record crest
- 11.40 ft1915
Flood stages and impacts
| Category | Stage |
|---|---|
| Major flood | 10.00 ft |
| Moderate flood | 8.00 ft |
| Minor flood | 5.00 ft |
| Action | 4.50 ft |
- 13.00 ftIn Illinois, residences at the west end of Haas Rd northwest of Shirland and structures at Sugar Shores Camping Resort may be threatened. Hwy T, Beloit Newark Rd, S Hopkins Rd and Sugar River Park are flooded. Widespread inundation of the floodplain may reach over 1 mile from the river between Durand and Shirland.
- 12.00 ftHwy T, Beloit Newark Rd, S Hopkins Rd, and Sugar River Park are flooded. In Illinois, Yale Bridge Rd may be threatened west of the river northwest of Shirland. In Illinois, Winslow Rd is threatened near the river between Durand and Shirland.
- 9.00 ftThere is widespread flooding of lowland in the Brodhead area. In the Avon Bottoms area of Rock County, there is flooding in Sugar River Park and Beloit Newark Rd. Floodwaters are over Highway T in Rock County. In Illinois, Winslow Rd is threatened near the river between Durand and Shirland. Low lying areas of Sugar Shores Camping Resort may be inundated.
- 8.80 ftThere is widespread agricultural land flooding in the Brodhead area. Downstream in the Avon Bottoms area of Rock County, there is flooding in Sugar River Park, Beloit Newark Rd, S Nelson Rd, and S Hopkins Rd. Floodwaters are over Highway T in Rock County. Structures at Sugar Shores Camping Resort may be threatened. Winslow Rd is threatened near the river between Durand and Shirland.
- 8.00 ftFloodwaters are over Highway T, Beloit Newark Rd, S Nelson Rd, S Hopkins Rd, and there is flooding in Sugar River Park in the Avon Bottoms area of Rock County. There is widespread agricultural and lowland flooding in the Brodhead area. In Illinois, structures at Sugar Shores Camping Resort may be threatened. Winslow Rd is threatened near the river between Durand and Shirland.
- 7.50 ftThere is widespread agricultural and lowland flooding in the Brodhead area. Downstream in the Avon Bottoms area of Rock County, there is flooding in Sugar River Park, Beloit Newark Rd and S Hopkins Rd. Water flows over the road on both sides of the S Nelson Rd bridge. In Illinois, Winslow Rd is threatened near the river between Durand and Shirland. Low lying areas of Sugar Shores Camping Resort may be inundated.
- 7.00 ftSome roads are flooded about 6 miles downstream in Avon Township of Rock County, including Beloit Newark Rd. Water over the road on both sides of the S Nelson Rd bridge. In Illinois, Winslow Rd is threatened near the river between Durand and Shirland. Low lying areas of Sugar Shores Camping Resort may be inundated.
- 6.50 ftThere is widespread flooding of lowland and agricultural land. Downstream in the Avon Bottoms area of Rock County, there is flooding in Sugar River Park. Some roads are flooded in Avon Township, including Beloit Newark Rd, about 6 miles downstream of Brodhead. Water over the road on both sides of the S Nelson Rd bridge. In Illinois, Winslow Rd is threatened near the river between Durand and Shirland. Low lying areas of Sugar Shores Camping Resort may be inundated.
- 6.00 ftSome roads are flooded about 6 miles downstream in Avon Township of Rock County, including Beloit Newark Rd. In the Avon Bottoms area of Rock County, flooding is occurring in Sugar River Park. Water over the road on both sides of the S Nelson Rd bridge. In Illinois, Winslow Rd is threatened near the river between Durand and Shirland. Low lying areas of Sugar Shores Camping Resort may be inundated.
- 5.50 ftSome roads are flooded about 6 miles downstream in Avon Township in Rock County. In the Avon Bottoms area of Rock County, flooding is occurring in Sugar River Park.
- 5.00 ftSome roads become flooded about 6 miles downstream in Avon Township in Rock County. In the Avon Bottoms area of Rock County, some minor flooding develops in Sugar River Park, including the boat ramp.
- 4.50 ftIn Illinois, low-lying areas in the Sugar River Forest Preserve and Colored Sands Forest Preserve may be inundated.
Flood outlook
Chance of flooding, September to November
| Category | Chance |
|---|---|
| Minor flooding | 16% |
| Moderate flooding | Under 5% |
| Major flooding | Under 5% |
The three-month chances are the River Forecast Centers’ long-range flood outlook, issued August 28, 2026.
Crest history
125 crests on NOAA’s list since 1914.
| # | Date | Stage |
|---|---|---|
| 1 | September 13, 1915 | 11.40 ft |
| 2 | March 15, 2019 | 10.20 ft |
| 3 | March 5, 1937 | 10.07 ft |
| 4 | March 14, 1929 | 10.00 ft |
| 5 | February 6, 1938 | 9.90 ft |
| 6 | March 16, 1943 | 9.86 ft |
| 7 | February 28, 1948 | 9.80 ft |
| 8 | February 23, 1922 | 9.78 ft |
| 9 | March 22, 1975 | 9.76 ft |
| 10 | February 22, 2018 | 9.76 ft |
| 11 | March 31, 1960 | 9.72 ft |
| 12 | February 21, 2018 | 9.59 ft |
| 13 | February 21, 1953 | 9.30 ft |
| 14 | March 26, 1916 | 9.30 ft |
| 15 | August 23, 2018 | 9.29 ft |
| 16 | March 16, 1919 | 9.20 ft |
| 17 | June 2, 2000 | 9.10 ft |
| 18 | January 6, 1946 | 9.10 ft |
| 19 | March 31, 1933 | 9.06 ft |
| 20 | August 23, 2007 | 9.02 ft |
| 21 | September 15, 1914 | 8.98 ft |
| 22 | July 18, 1996 | 8.91 ft |
| 23 | June 28, 2013 | 8.86 ft |
| 24 | April 2, 1959 | 8.80 ft |
| 25 | July 23, 2017 | 8.72 ft |
Most recent crests
- April 18, 2026: 8.26 ft
- July 16, 2024: 7.72 ft
- April 5, 2024: 6.39 ft
- March 2, 2023: 5.18 ft
- September 13, 2022: 3.89 ft
- March 12, 2021: 4.85 ft
- October 4, 2019: 7.53 ft
- March 15, 2019: 10.20 ft
- February 7, 2019: 5.65 ft
- October 4, 2018: 8.63 ft
Nearby
Upstream, downstream and the gauges around this one.
What this means
Forecasts by the North Central River Forecast Center. Forecasts are issued as needed during times of high water, but are not routinely available. River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time. River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 48 hours into the future from the forecast issuance time.
Sources
Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service. Streamflow and the daily record from the U.S. Geological Survey.