Maquoketa River

Last Updated: April 19, 2026

Total streamflow across the Maquoketa River was last observed at 10,290 cfs, and is expected to yield approximately 20,410 acre-ft of water today; about 261% of normal. River levels are high. Average streamflow for this time of year is 3,939 cfs, with recent peaks last observed on 2019-03-16 when daily discharge volume was observed at 30,150 cfs.

Maximum discharge along the river is currently at the Maquoketa River Near Maquoketa reporting a streamflow rate of 9,050 cfs. This is also the highest stage along the Maquoketa River, with a gauge stage of 19.41 ft at this location. This river is monitored from 2 different streamgauging stations along the Maquoketa River, the highest being situated at an altitude of 920 ft, the Maquoketa River At Manchester.

The Maquoketa River is a tributary of the Mississippi River located in the Midwest United States.


15-Day Long Term Forecast


River Details

Last Updated 2026-04-19
Discharge Volume 20,410 ACRE-FT
Streamflow 10,290.0 cfs
Past 24 Hours: -3550.0 cfs (-25.65%)
Percent of Normal 261.25%
Maximum 30,150.0 cfs
2019-03-16
Seasonal Avg 3,939 cfs
       
River Streamflow Levels
Streamgauge Streamflow Gauge Stage 24hr Change (%) % Normal Minimum (cfs) Maximum (cfs) Air Temp Elevation
Maquoketa River At Manchester
USGS 05416900
1240 cfs 7.71 ft -28.74
Maquoketa River Near Maquoketa
USGS 05418500
9050 cfs 19.41 ft -25.21
Seasonal Discharge Comparison
Maximum Streamflow Discharge
Streamflow Elevation Profile

The Maquoketa River is a tributary of the Mississippi River, approximately 150 miles (240 km) long, in northeastern Iowa in the United States. Its watershed covers 1,694 square miles (4,387 km2) within a rural region of rolling hills and farmland southwest of Dubuque. It is not to be confused with the Little Maquoketa River, another distinct direct tributary of the Upper Mississippi River meeting the Big River north of Dubuque. The river and its tributaries mark the border of the Driftless Area of Iowa, with the areas east of it not having been covered by ice during the last ice age. Its name derives from Maquaw-Autaw, which means "Bear River" in Meskwaki.