Data Disclaimer: Water level data is provided by USGS and NOAA for informational purposes only. Verify conditions on-site before any water activities.
Learn more
Twin Bridges provides boat access to the South Fork Snake River near Sunnydell in Madison County, Idaho. The ramp features a recently extended concrete launch with improved rock and gravel armoring, making it suitable for launching boats of various sizes, particularly helpful during low water conditions. The facility includes a dock, parking, picnic areas with fire pits, restrooms, and a children's playground. Kelly Island Campground is located within 10 miles for overnight stays.
The South Fork is a major river system with strong, consistent flow (averaging nearly 50,000 cubic feet per second) and a steep gradient typical of mountain rivers in Idaho's upper Snake Region. Paddlers and boaters should be prepared for swift current and be experienced with moving water. This is an active recreation area that draws over 300,000 annual users; a facility use fee is required from late May through September 30. Nearby attractions include the distinctive Menan Buttes and the scenic Cress Creek Nature Trail for those seeking land-based recreation before or after their water activities.