Silent Wake Kayak Instruction & Tours
East Branch Rock River near Silent Wake Kayak Instruction & Tours
About this river
East Branch Rock River is a 13.3 mile river near Silent Wake Kayak Instruction & Tours in Wisconsin. Streamflow is measured at the USGS gauge Rock River at Horicon, WI (site 05424057). The National Hydrography Dataset places it at stream order 5. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1998 to 2025
East Branch Rock River typically runs highest in April, at a median 817 cfs, and lowest in October, at 81 cfs. The highest flow on record for any single day is 3,810 cfs, in 2008.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 149 | 88 to 242 | |
| February | 178 | 56 to 383 | |
| March | 733 | 393 to 1,110 | |
| April | 817 | 516 to 1,235 | |
| May | 508 | 265 to 861 | |
| June | 381 | 167 to 649 | |
| July | 133 | 50 to 463 | |
| August | 88 | 41 to 207 | |
| September | 83 | 32 to 189 | |
| October | 81 | 45 to 165 | |
| November | 174 | 81 to 309 | |
| December | 172 | 93 to 293 |
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 27 years of record. Statistics published by the US Geological Survey for Rock River at Horicon, WI (site 05424057). 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 East Branch Rock River, all of them public access. Ramp data comes from the USGS national boat-ramp inventory.
- River Edge ParkEast Branch Rock RiverPublic
- North Pole RoadEast Branch Rock RiverPublic
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Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show East Branch Rock River'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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