Iroquois River river
Total streamflow across the Iroquois River was last observed at 1,182 cfs, and is expected to yield approximately 2,345 acre-ft of water today; about 69% of normal. River levels are low and may signify a drought. Average streamflow for this time of year is 1,714 cfs, with recent peaks last observed on 2023-03-06 when daily discharge volume was observed at 20,550 cfs.
Maximum discharge along the river is currently at the Iroquois River Near Chebanse reporting a streamflow rate of 756 cfs. However, the streamgauge with the highest stage along the river is the Iroquois River Near Foresman with a gauge stage of 6.82 ft. This river is monitored from 4 different streamgauging stations along the Iroquois River, the highest being situated at an altitude of 656 ft, the Iroquois River At Rensselaer.
River streamflow levels
Daily aggregate streamflow across every monitored gauge along the Iroquois River. Use the range buttons to zoom in on a specific period.
Total streamflow
Sum of all monitored streamgauges · daily
Every streamgauge along the Iroquois River
All 4 USGS gauges Snoflo tracks for this river, with current flow, stage, recent change, percent of normal, and the gauge's all-time min / max. Click any header to sort. Cells are heatmapped relative to the column min/max -- darker blue = higher.
| Streamgauge▾ | Streamflow (cfs)▾ | Gauge stage (ft)▾ | 24h Δ (%)▾ | % Normal▾ | Min (cfs)▾ | Max (cfs)▾ | Elevation (ft)▾ |
|---|---|---|---|---|---|---|---|
|
Iroquois River At Rensselaer
IN
USGS 05522500
|
74 | 4.11 | -7.9 | 64% | 8 | 3,000 | 656 |
|
Iroquois River Near Foresman
IN
USGS 05524500
|
152 | 6.82 | -0.7 | 62% | 3 | 5,030 | 653 |
|
Iroquois River At Iroquois
IL
USGS 05525000
|
200 | 5.93 | -5.2 | 52% | 24 | 10,000 | 638 |
|
Iroquois River Near Chebanse
IL
USGS 05526000
|
756 | 4.05 | 7.1 | 55% | 45 | 28,900 | 600 |
Maximum streamflow discharge by year
The single highest aggregate discharge recorded each year. Spotting the multi-year trend reveals droughts vs. wet cycles long before the headline daily flow does.
Annual peak discharge
From the river's full record · one point per water year
Streamflow elevation profile
Each bubble is one gauge along the river, plotted by current streamflow (x-axis) vs elevation (y-axis), sized by gauge stage. Reading top-to-bottom traces the river from headwaters down to its mouth -- you can see flow accumulate as elevation drops.
Elevation vs streamflow
One point per monitored gauge · bubble size = gauge stage
Iroquois River
The Iroquois River is a 103-mile-long river that runs through northeastern Illinois and northwestern Indiana, eventually flowing into the Kankakee River. The river was named after the Iroquois people who once inhabited the region. The river has been historically important for transportation and agriculture, with several small towns and farms located along its banks. The river is also known for its hydrological properties, with several reservoirs and dams located along its course, including the Langham Creek Dam and the Sugar Creek Dam. These dams provide important flood control measures and irrigation for local agricultural operations. The river is also a popular spot for recreational activities such as fishing and boating, with several public parks and boat launches available for visitors.
Recreation along the Iroquois River
Fishing access and paddle runs Snoflo tracks within the watershed.
Track the Iroquois River in the Snoflo app
Set per-gauge push alerts (e.g. "alert me when flow at the Russian R Nr Healdsburg crosses 5,000 cfs"), and Snoflo's iOS app pushes the moment USGS reports the crossing.
About the Iroquois River
Where does the data for the Iroquois River come from?
Streamflow and gauge stage data are sourced from the U.S. Geological Survey (USGS) National Water Information System. The aggregate flow shown at the top of the page is computed by Snoflo as the sum of all monitored gauges along the river.
How is "percent of normal" calculated?
Today's aggregate streamflow is compared to the historical average aggregate streamflow on this calendar day across the river's full record. 100% means right on average; values above 100% indicate above-normal flow (wet year); values below indicate below-normal (dry year or drought).
Why are some gauges showing very different flows?
Gauges along a river measure flow at different points: headwater gauges read what's coming off the snowpack or mountain runoff; downstream gauges integrate everything upstream, including tributary inputs. Wide spreads usually mean a tributary is contributing significantly between gauges.
What's the elevation profile chart showing?
Each bubble is one gauge along the river, plotted by streamflow (x-axis) and elevation (y-axis), sized by gauge stage. Reading top-down traces the river from headwaters to mouth -- you can see flow build as elevation drops.
Can I get alerts when a specific gauge crosses a threshold?
Yes -- alerts are managed in the Snoflo iOS app on a per-gauge basis. Open any individual streamgauge from the table above and favorite it to set a discharge threshold.