« Back to Jefferson County Rivers

South Branch Rock River at Waupun

Critical Stages
4' - Action
6' - Flood
8' - Moderate
10' - Major

Latest Observation

Updated: 4:00 AM CST 12/8/25

Status: No Flooding

Stage: 1.94 ft

Flow: 0.0037 kcfs

Forecast

Forecast not available for this location.

TimeStage (ft)Flow (kcfs)
4:00 AM 12/8 1.94 0.0037
3:45 AM 12/8 1.94 0.0037
3:30 AM 12/8 1.93 0.0035
3:15 AM 12/8 1.93 0.0035
3:00 AM 12/8 1.94 0.0037
2:45 AM 12/8 1.93 0.0035
2:30 AM 12/8 1.93 0.0035
2:15 AM 12/8 1.94 0.0037
2:00 AM 12/8 1.94 0.0037
1:45 AM 12/8 1.95 0.0039
1:30 AM 12/8 1.93 0.0035
1:15 AM 12/8 1.95 0.0039
1:00 AM 12/8 1.93 0.0035
12:45 AM 12/8 1.92 0.0033
12:30 AM 12/8 1.94 0.0037
12:15 AM 12/8 1.93 0.0035
12:00 AM 12/8 1.93 0.0035
11:45 PM 12/7 1.94 0.0037
11:30 PM 12/7 1.94 0.0037
11:15 PM 12/7 1.95 0.0039
11:00 PM 12/7 1.95 0.0039
10:45 PM 12/7 1.92 0.0033
10:30 PM 12/7 1.95 0.0039
10:15 PM 12/7 1.93 0.0035
10:00 PM 12/7 1.94 0.0037
9:45 PM 12/7 1.94 0.0037
9:30 PM 12/7 1.92 0.0033
9:15 PM 12/7 1.94 0.0037
9:00 PM 12/7 1.94 0.0037
8:45 PM 12/7 1.93 0.0035
Hydrograph for South Branch Rock River at Waupun
11' - Water covers the support beams underneath the Fond du Lac St bridge and is closed. Gateway Dr. and County Park Rd. at the bridge are closed. Waters hits bridge deck of County Park Rd. Yards and basements, including walk-out basements, of some homes on Harmsen Ave. are flooded. Shaler Park and Pine St park closed.
10.5' - Water covers the support beams underneath the Fond du Lac St bridge and is closed. Gateway Dr. and County Park Rd. at the bridge are closed. Yards and basements, including walk-out basements, of some homes on Harmsen Ave. are flooded. Floodwaters affect roadways adjacent to the river, a park and a picnic area.
9.8' - Water covers the support beams underneath the Fond du Lac St bridge and is closed. Gateway Dr. and County Park Rd. at the bridge are closed. Yards and basements, including walk-out basements of some homes on Harmsen Ave. are flooded. Floodwaters affect a park, a picnic area and roadways adjacent to the river.
9.3' - Water covers the support beams underneath the Fond du Lac St bridge and is closed. Gateway Dr. and County Park Rd. at the bridge are closed. Yards and basements of some homes on Harmsen Ave. are flooded.
8.6' - Water touches the support beams underneath the Fond du Lac St bridge and is closed. Gateway Dr. and County Park Rd. at the bridge are closed.
7.5' - Water reaches the support beams underneath the Fond du Lac St bridge and is closed. Gateway Dr. and County Park Rd. at the bridge are closed. Floodwaters affect a park and roadways adjacent to the river. Water starts to over top the dam at Shaler Park.
7.3' - Water reaches the support beams underneath the Fond du Lac St bridge and is closed. Gateway Dr. and County Park Rd. at the bridge are closed. Floodwaters affect a park, a picnic area and roadways in the Waupun area.
7' - Floodwaters affect a park, a picnic area, and some roadways adjacent to the river. Gateway Dr. is flooded. County Park Rd (Hwy MMM) is closed at the bridge as the river flows around the north end of bridge. Shaler Park and Pine St Park closed.
6' - Floodwaters affect a picnic area and park near the river. Gateway Dr. is flooded and closed.
5' - Gateway Dr. is flooded and closed.
4.5' - Water begins to affect a low spot on Gateway Dr.
4' - There is minor lowland flooding
DateStage (ft)
Jun 13, 2008 10.09
Mar 15, 2019 8.66
Jun 9, 2008 8.27
Jun 23, 2024 8.24
Jun 11, 2004 8.2
Apr 3, 1959 7.97
Oct 2, 2019 7.92
Oct 2, 2019 7.92
Feb 10, 1966 7.85
Jul 6, 1993 7.53
Mar 30, 1960 7.5
Mar 28, 1962 7.46
Aug 29, 2018 7.43
May 4, 2018 7.3
Jul 21, 1999 7.18
May 24, 2004 7.17
Mar 21, 1952 6.96
Jul 6, 2024 6.85
May 31, 2004 6.74
Apr 2, 1956 6.65

Data provided by the National Weather Service.