About this river
Beaver Slough is a 4.3 mile river near Quad Cities Kayak River Adventures in Illinois. Streamflow is measured at the USGS gauge Mississippi River at Clinton, IA (site 05420500). The National Hydrography Dataset places it at stream order 9. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1874 to 2026
Beaver Slough typically runs highest in April, at a median 88,550 cfs, and lowest in January, at 24,800 cfs. The highest flow on record for any single day is 307,000 cfs, in 1965.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 24,800 | 19,100 to 33,300 | |
| February | 26,300 | 20,000 to 34,900 | |
| March | 46,700 | 34,100 to 61,800 | |
| April | 88,550 | 60,800 to 114,500 | |
| May | 78,800 | 54,600 to 106,000 | |
| June | 65,550 | 46,250 to 93,200 | |
| July | 54,600 | 34,500 to 76,500 | |
| August | 34,300 | 25,100 to 48,600 | |
| September | 32,750 | 24,450 to 48,200 | |
| October | 32,900 | 24,500 to 50,900 | |
| November | 35,900 | 26,650 to 49,550 | |
| December | 26,000 | 19,600 to 34,000 |
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 152 years of record. Statistics published by the US Geological Survey for Mississippi River at Clinton, IA (site 05420500). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Boat access nearby
2 mapped launches sit in the mapped area of Beaver Slough, all of them public access. Ramp data comes from the USGS national boat-ramp inventory.
- Waller RoadMississippi RiverPublic
- 15th Avenue RampMississippi RiverPublic
Embed this gauge on your site
Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show Beaver Slough's live streamflow, water level and 7-day trend. It reads the USGS gauge directly, updates itself, and links back here.
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