Total streamflow across the
Iowa River
was last observed at
28,199
cfs, and is expected to yield approximately
55,932
acre-ft of water today; about 75%
of normal.
Average streamflow for this time of year is
37,372 cfs,
with recent peaks last observed
on
2014-07-04 when daily discharge volume was observed at
225,800 cfs.
Maximum discharge along the river is currently at the
Iowa River At Wapello
reporting a streamflow rate of 11,900 cfs.
However, the streamgauge with the highest stage along the river is the
Iowa River Below Coralville Dam Nr Coralville
with a gauge stage of 51.18 ft.
This river is monitored from 8 different streamgauging stations along the Iowa River, the highest being situated at an altitude of 1,187 ft, the
Iowa River Near Rowan.
The Iowa River is a tributary of the Mississippi River and runs about 329 miles across the state of Iowa.
| Last Updated | 2026-05-09 |
| Discharge Volume | 55,932 ACRE-FT |
| Streamflow |
28,199.0 cfs
Past 24 Hours: -608.0 cfs (-2.11%) |
| Percent of Normal | 75.45% |
| Maximum |
225,800.0 cfs
2014-07-04 |
| Seasonal Avg | 37,372 cfs |
| Streamgauge | Streamflow | Gauge Stage | 24hr Change (%) | % Normal | Minimum (cfs) | Maximum (cfs) | Air Temp | Elevation |
|---|---|---|---|---|---|---|---|---|
|
Iowa River Near Rowan
USGS 05449500 |
259 cfs | 4.81 ft | -3 | |||||
|
Iowa River At Marshalltown
USGS 05451500 |
1090 cfs | 11.71 ft | -9.17 | |||||
|
Iowa River Near Belle Plaine
USGS 05452500 |
2450 cfs | 9.67 ft | -4.67 | |||||
|
Iowa River At Marengo
USGS 05453100 |
2940 cfs | 9.59 ft | -3.29 | |||||
|
Iowa River Below Coralville Dam Nr Coralville
USGS 05453520 |
2610 cfs | 51.18 ft | 1.16 | |||||
|
Iowa River At Iowa City
USGS 05454500 |
2660 cfs | 12.22 ft | -0.37 | |||||
|
Iowa River Near Lone Tree
USGS 05455700 |
4290 cfs | 8.2 ft | 0.23 | |||||
|
Iowa River At Wapello
USGS 05465500 |
11900 cfs | 15.03 ft | -2.46 |
The Iowa River is a tributary of the Mississippi River in the state of Iowa in the United States. It is about 323 miles (520 km) long and is open to small river craft to Iowa City, about 65 miles (105 km) from its mouth. Its major tributary is the Cedar River.