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Access Site WI

Rock River Ramp

Rock River

Source: wisconsin_department_of_natural_resources Updated 1 year ago

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City: Janesville, WI
County: Rock County
Type: Boat Ramp
Location: 42.73102123, -89.05835222
4033 N River Rd, Janesville, WI 53545, USA
Air Temp: --
Location
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Nearby Gauge Conditions
Rock River at Newville, WI Same River 7.1 mi away
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Rock River at Afton, WI Same River 8.1 mi away
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Real-time data from USGS Water Services
Whitewater Runs on Rock River
2 runs (1 nearby)
Difficulty Classes
I Easy II Novice III Intermediate IV Advanced V Expert/Extreme VI Unrunnable
Position relative to this access site: Put-in at this location This location is on the run Take-out at this location
Downstream from here Upstream from here
III Upstream from here (5.4 mi from take-out) Indianford / Janesville Dams (PnP)
0.1 mi
These whitewater runs are on the same river but located more than 50 miles from this access site.
II-III+ 267 mi away Worm Lake outlet to Sturgeon River (9.1 miles)
8.3 mi 69 ft/mi
Whitewater data from American Whitewater
About This Access Site
The 4 Mile boat ramp provides public access to the Rock River in Janesville and is well-suited for launching kayaks, canoes, and small motorboats. The concrete ramp is approximately 16 feet wide, offering sufficient space for multiple launches. This is a straightforward, no-frills access point ideal for paddlers looking to get on the water quickly.

The Rock River is a major 299-mile waterway flowing through southern Wisconsin and northern Illinois, making it a popular destination for paddling, fishing, and recreational boating. The river's size and character support various watercraft types, from kayaks to larger boats. Paddlers should consult current river conditions and flow rates before launching, as water levels can vary seasonally. For additional details on facilities, amenities, or any access restrictions, contact the Wisconsin DNR or check their comprehensive boat access database at dnr.wi.gov/topic/Lands/boataccess/.