Iroquois River at Rensselaer water level

Name: Iroquois River at Rensselaer water level (U.S. Geological Survey)
Creator: U.S. Geological Survey
License: https://www.usgs.gov/information-policies-and-instructions/copyrights-and-credits

River gauge, Iroquois River, Indiana, United States

Directions

Below flood stage

Water level

4.09ft Down 0.04 ft over the last 24 hours

Measured Oct 20, 2026, 07:30 AM CDT (1 hour ago)

Flow: 72.9 cfs

History

7 days

Water level Minor flood stage

What this means

The Iroquois River at Rensselaer is at 4.09 ft, in the normal range.

It is 7.91 ft below the flood stage of 12.00 ft.

It has dropped 0.04 ft over the past 24 hours. In the last month it has stayed between 4.09 ft and 4.32 ft.

Fall is often low-water season on rivers, until steadier rain returns.

Judged against the official flood stage for this gauge. How to read levels

Key numbers

Highest on record: 17.04 ftFebruary 22, 2018

Floating and fishing near Iroquois River at Rensselaer

Normal flows mean predictable rapids and good access at most put-ins.

Flood stage here is 12.00 ft, 7.91 ft above the current reading. Beyond it, the National Weather Service also defines moderate and major flood stages.

What happens at each level

22.00 ft: I-65 is threatened west of Rensselaer.
18.50 ft: Widespread inundation of structures and roads begins in east Rensselaer. Grace Street is threatened in Rensselaer.
18.00 ft: US-231 (Washington Street) threatened in Rensselaer.
17.50 ft: Water treatment plant in Rensselaer threatened. IL-114 is inundated east of the river east of Rensselaer.
17.00 ft: Extensive flooding of Potawatomi Park and Laird's Landing in Rensselaer.
16.50 ft: Structures threatened along Kanne Lane in west Rensselaer.
16.00 ft: Extensive flooding of cemetery and nearby public works.
15.00 ft: College Avenue threatened in Rensselaer.
14.00 ft: A couple homes threatened in Rensselaer.
12.00 ft: Low-lying agricultural land inundated. Parking lots threatened at Lairds Landing.
10.00 ft: Water overtops low-lying banks near Rensselaer.
4.09 ft: Right now

Impact statements from the U.S. National Weather Service.

Highest crests on record

Chance of at least minor flooding in October to December: 17 %.

Rank	Level	Date
1	17.04 ft	February 22, 2018
2	16.74 ft	June 18, 2015
3	16.59 ft	July 10, 2003
4	16.54 ft	June 10, 1958
5	16.16 ft	March 12, 2009
6	15.79 ft	December 31, 1990
7	15.64 ft	February 7, 2008
8	15.52 ft	October 18, 1993
9	15.15 ft	March 5, 1979
10	15.11 ft	January 10, 2008

Weather at the gauge

Rain in the last 3 days: 1.09 in. Rain that falls upstream can take hours or days to show up at a river gauge.

17 Sat 57° 37° 0.06 in, 26% Wind 10 mph

18 Sun 61° 35° – Wind 14 mph

19 Mon 68° 35° – Wind 6 mph

20 Tue 68° 48° – Wind 6 mph

21 Wed 69° 48° – Wind 6 mph

22 Thu 71° 51° – Wind 6 mph

23 Fri 71° 51° – Wind 8 mph

Forecast: Open-Meteo

Sunrise 07:06 AM Sunset 06:02 PM Daylight 10 hr, 56 min First quarter 68%

Map

Other gauges on the Iroquois River

Gauge	Level	Compared with normal	24 hours	Distance
Iroquois River near ParrRiver gauge, Iroquois River	0.4 cfs	Normal	±0	8 mi
Iroquois River near ForesmanRiver gauge, Iroquois River	5.29 ft	Below flood stage	−0.06 ft	10 mi
Iroquois River at IroquoisRiver gauge, Iroquois River	5.45 ft	Normal	−0.08 ft	25 mi
Iroquois River near ChebanseRiver gauge, Iroquois River	2.86 ft	Normal	−0.01 ft	37 mi

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Carpenter Creek at RemingtonRiver gauge, Carpenter Creek	3.34 ft	Below flood stage	−0.01 ft	11 mi
Tippecanoe River at BuffaloRiver gauge, Tippecanoe River	934 cfs	Normal	+6.0 cfs	20 mi
Kankakee River at ShelbyRiver gauge, Kankakee River	5.81 ft	Below flood stage	−0.06 ft	20 mi
Big Monon Ditch at Cr200n near MedaryvilleRiver gauge, Big Monon Ditch	125 cfs	Very high	−1.0 cfs	21 mi
Kankakee River at Dunns BridgeRiver gauge, Kankakee River	4.21 ft	Below flood stage	−0.08 ft	21 mi
Tippecanoe River at NorwayRiver gauge, Tippecanoe River	887 cfs	Normal	−153.0 cfs	22 mi
Kankakee River near KoutsRiver gauge, Kankakee River	5.17 ft	Below flood stage	−0.07 ft	23 mi

Questions and answers

What is flood stage for the Iroquois River at Rensselaer?

The official flood stage is 12.00 ft. The level is currently 7.91 ft below it.

Is gage height the same as water depth?

No. Gage height is measured from a fixed reference point chosen by the agency, so a reading of 10 ft does not mean the river is 10 ft deep.

What is the water level of Iroquois River at Rensselaer today?

On Oct 20, 2026, 07:30 AM CDT, the water level was 4.09 ft. Down 0.04 ft over the last 24 hours.

Is Iroquois River at Rensselaer rising or falling?

Down 0.04 ft over the last 24 hours.

Is the level of Iroquois River at Rensselaer normal?

Below flood stage. Judged against the official flood stage for this gauge.

What is the highest water level ever recorded at Iroquois River at Rensselaer?

The highest level on record is 17.04 ft on February 22, 2018.

How often is this data updated?

The U.S. Geological Survey publishes a new reading every 15 minutes. This page refreshes within minutes of each update.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: U.S. Geological Survey
Station code: usgs:05522500 (Agency page)
Coordinates: 40.93336, -87.12889 (WGS84)
Vertical datum: NAVD88
Update interval: every 15 minutes
Licence: Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision

Published series

Parameter	Last value	Time (UTC)	Quality
Water level	4.09 ft	2026-10-20 12:30	Provisional
Flow	72.9 cfs	2026-10-20 12:30	Provisional

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How to cite

U.S. Geological Survey: Iroquois River at Rensselaer (usgs:05522500). Accessed October 20, 2026 via Nivelmap, https://nivelmap.com/en/united-states/indiana/iroquois-river-at-rensselaer

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.

Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer