« Back to Jefferson County Rivers
Rock River at Jefferson
Critical Stages
8' - Action
10' - Flood
11' - Moderate
13' - Major
Latest Observation
Updated: 4:00 AM CST 12/8/25
Status: No Flooding
Stage: 3.84 ft
Flow: 0.898 kcfs
Forecast
Forecast not available for this location.
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 4:00 AM 12/8 | 3.84 | 0.898 |
| 3:45 AM 12/8 | 3.84 | 0.898 |
| 3:30 AM 12/8 | 3.83 | 0.891 |
| 3:15 AM 12/8 | 3.83 | 0.891 |
| 3:00 AM 12/8 | 3.84 | 0.898 |
| 2:45 AM 12/8 | 3.84 | 0.898 |
| 2:30 AM 12/8 | 3.84 | 0.898 |
| 2:15 AM 12/8 | 3.83 | 0.891 |
| 2:00 AM 12/8 | 3.84 | 0.898 |
| 1:45 AM 12/8 | 3.83 | 0.891 |
| 1:30 AM 12/8 | 3.83 | 0.891 |
| 1:15 AM 12/8 | 3.83 | 0.891 |
| 1:00 AM 12/8 | 3.83 | 0.891 |
| 12:45 AM 12/8 | 3.83 | 0.891 |
| 12:30 AM 12/8 | 3.83 | 0.891 |
| 12:15 AM 12/8 | 3.83 | 0.891 |
| 12:00 AM 12/8 | 3.82 | 0.884 |
| 11:45 PM 12/7 | 3.82 | 0.884 |
| 11:30 PM 12/7 | 3.82 | 0.884 |
| 11:15 PM 12/7 | 3.82 | 0.884 |
| 11:00 PM 12/7 | 3.82 | 0.884 |
| 10:45 PM 12/7 | 3.82 | 0.884 |
| 10:30 PM 12/7 | 3.81 | 0.877 |
| 10:15 PM 12/7 | 3.82 | 0.884 |
| 10:00 PM 12/7 | 3.82 | 0.884 |
| 9:45 PM 12/7 | 3.81 | 0.877 |
| 9:30 PM 12/7 | 3.81 | 0.877 |
| 9:15 PM 12/7 | 3.81 | 0.877 |
| 9:00 PM 12/7 | 3.81 | 0.877 |
| 8:45 PM 12/7 | 3.81 | 0.877 |
15' -
Floodwaters cut the City of Jefferson in half. The Main Street and Wisconsin Drive bridges are closed to traffic due to flooding around the bridges. Main St and Hwy 26 intersection closed. S Center Ave near river flooded. Riverview Dr flooded.
12' -
Riverview Drive is closed due to floodwaters on the road. The Tensfeldt Park boat launch is closed. Intersection of S Main St and E Dane St is closed, and S Center Ave. Floodwaters affect highway K between Jefferson and Fort Atkinson. River's Edge Park flooded.
11.5' -
Floodwaters affect Highway K between Jefferson and Fort Atkinson. Floodwaters affect some low lying residences and businesses in Jefferson. Water on road at Hwy 26 (Main St) and Hwy N (E Dane St) and S Center Ave. Riverview Drive near the wastewater plant is flooded and closed.
11' -
Floodwaters affect low lying areas of residential and business property in Jefferson. Water approaches the intersection of Highway 26 (Main St) and County Road N (E Dane St). S Center Ave near the river flooded and Riverview Drive near the wastewater plant flooded. Park is flooded. The retention pond at S Main St and E Dane St is full.
10' -
Water affects low lying areas of residential property in the City of Jefferson. Rock River Park and boat launch is affected near Hwy B in Johnson Creek.
9' -
There is minor lowland flooding.
8' -
Minor lowland flooding occurs.
| Date | Stage (ft) |
|---|---|
| Jun 19, 2008 | 15.64 |
| Apr 2, 1979 | 12.84 |
| Apr 20, 2013 | 12.31 |
| Apr 22, 1993 | 12.29 |
| Sep 8, 2018 | 11.72 |
| Jun 2, 2004 | 11.51 |
| Mar 16, 2019 | 11.5 |
| Apr 14, 2008 | 11.35 |
| Jul 27, 2010 | 11.01 |
| Oct 12, 2019 | 11 |
| Mar 27, 2009 | 10.87 |
| Jun 5, 2000 | 10.81 |
| Oct 13, 2018 | 10.64 |
| Mar 17, 2009 | 10.56 |
| Jun 11, 2024 | 10.47 |
| Apr 2, 2008 | 10.38 |
| Apr 5, 2007 | 10.27 |
| Jul 9, 2024 | 10.14 |
| Jun 30, 2024 | 10.05 |
| Mar 27, 2011 | 9.7 |
Data provided by the National Weather Service.
