About this river
Iowa River is a 51.7 mile river near SOKO Outfitters in Iowa. Streamflow is measured at the USGS gauge Iowa River below Coralville Dam nr Coralville, IA (site 05453520). The National Hydrography Dataset places it at stream order 7. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1993 to 2026
Iowa River typically runs highest in June, at a median 4,255 cfs, and lowest in September, at 476 cfs. The highest flow on record for any single day is 39,400 cfs, in 2008.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 725 | 348 to 1,440 | |
| February | 980 | 586 to 1,860 | |
| March | 2,420 | 1,370 to 4,640 | |
| April | 2,600 | 1,455 to 4,860 | |
| May | 3,740 | 2,020 to 6,000 | |
| June | 4,255 | 2,145 to 6,090 | |
| July | 2,610 | 1,480 to 6,010 | |
| August | 840 | 563 to 2,050 | |
| September | 476 | 226 to 1,565 | |
| October | 598 | 197 to 1,730 | |
| November | 829 | 476 to 1,910 | |
| December | 1,060 | 579 to 1,800 |
Typical is the median of each month’s daily median values, and the usual range runs from the median 25th to the median 75th percentile, across about 34 years of record. Statistics published by the US Geological Survey for Iowa River below Coralville Dam nr Coralville, IA (site 05453520). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Boat access nearby
8 mapped launches sit in the mapped area of Iowa River, all of them public access. Ramp data comes from the USGS national boat-ramp inventory.
- Terry Trueblood Recreation AreaSand LakePublic
- Sturgis Ferry ParkIowa RiverPublic
- City Park North DubuqueIowa RiverPublic
- Trailwater EastIowa RiverPublic
- Coralville Dam Boat AccessIowa River - Coralville LakePublic
- West OverlookIowa River - Coralville LakePublic
- Sugar BottomIowa River - Coralville LakePublic
- Mehaffey BridgeIowa River - Coralville LakePublic
Embed this gauge on your site
Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show Iowa River's live streamflow, water level and 7-day trend. It reads the USGS gauge directly, updates itself, and links back here.
See every free widget you can put on your site, including live conditions and a 7 day forecast.
