« Back to Calumet Rivers

Floyd River at Alton

Critical Stages
10' - Action
12' - Flood
16' - Moderate
22' - Major

Latest Observation

Updated: 5:00 AM CST 12/16/25

Status: No Flooding

Stage: 5.52 ft

Flow: 0.0454 kcfs

Forecast

Forecast not available for this location.

TimeStage (ft)Flow (kcfs)
5:00 AM 12/16 5.52 0.0454
4:45 AM 12/16 5.52 0.0454
4:30 AM 12/16 5.53 0.0466
4:15 AM 12/16 5.53 0.0466
4:00 AM 12/16 5.53 0.0466
3:45 AM 12/16 5.53 0.0466
3:30 AM 12/16 5.54 0.0478
3:15 AM 12/16 5.54 0.0478
3:00 AM 12/16 5.54 0.0478
2:45 AM 12/16 5.55 0.0491
2:30 AM 12/16 5.56 0.0504
2:15 AM 12/16 5.56 0.0504
2:00 AM 12/16 5.56 0.0504
1:45 AM 12/16 5.56 0.0504
1:30 AM 12/16 5.57 0.0518
1:15 AM 12/16 5.56 0.0504
1:00 AM 12/16 5.56 0.0504
12:45 AM 12/16 5.57 0.0518
12:30 AM 12/16 5.56 0.0504
12:15 AM 12/16 5.56 0.0504
12:00 AM 12/16 5.56 0.0504
11:45 PM 12/15 5.56 0.0504
11:30 PM 12/15 5.56 0.0504
11:15 PM 12/15 5.56 0.0504
11:00 PM 12/15 5.56 0.0504
10:45 PM 12/15 5.56 0.0504
10:30 PM 12/15 5.56 0.0504
10:15 PM 12/15 5.56 0.0504
10:00 PM 12/15 5.56 0.0504
9:45 PM 12/15 5.56 0.0504
Hydrograph for Floyd River at Alton
26' - Hwy 10 is flooded and substantial flooding is ongoing near the river throughout Alton.
24' - Several houses on the north side of Alton flood. Water approaches Hwy 10 on the north side of Alton. The railroad tracks are also flooded.
22' - More substantial street flooding begins in Alton including 3rd Ave south of the bridge. Additional structures are also in danger of flooding.
20' - The lower levees in Alton may begin to be overtopped flooding some nearby industrial businesses. Hwy 60 south of Alton is flooded. Portions of Division St in Alton may also begin to flood and the bridge on 3rd Ave may also be closed.
18' - The entire flood plain is under water and the river is about 1/2 mile wide. The flooding still primarily only affects agricultural land and county roads.
16' - Significant amounts of crop and pasture land are flooded.
15' - 410th Street and Larch Avenue is inundated. Also 440th Street and Kingbird Avenue is flooded, and the water reaches the bottom of the bridge at CR L14 and 440th Street.
12' - Flooding begins to affect the lower lying agricultural lands along the river.
DateStage (ft)
Jun 22, 2024 26.81
Sep 20, 2018 21.96
Mar 14, 2019 20.87
Jun 21, 2018 20.5
May 27, 2013 19.19
Jun 20, 1983 18.54
Mar 23, 1979 18.4
Mar 28, 1962 18.35
Jun 18, 2014 18.04
Jul 23, 2010 17.97
Mar 4, 1969 17.78
Mar 28, 1993 17.46
Apr 1, 1965 17.36
Jun 13, 1994 17.34
Mar 28, 1960 17.27
Feb 19, 1971 17.17
Apr 23, 1985 16.93
Feb 9, 1966 16.62
Jun 13, 1984 16.58
Jun 5, 1975 16.55

Data provided by the National Weather Service.