Data Disclaimer: Water level data is provided by USGS and NOAA for informational purposes only. Verify conditions on-site before any water activities.
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The Highway 21 Bridge boat ramp provides public access to the Trinity River in Madison County, near the community of Trinity. Located on the right bank just east of the Highway 21 crossing, this is a straightforward public launch facility for recreational boaters and paddlers. The site offers a simple boat ramp suitable for launching vessels into this major river system.
The Trinity River at this location is a substantial waterway—classified as a major river (Stream Order 8) with an average flow of approximately 9,510 cubic feet per second and velocities around 6 feet per second. The river features a gentle average gradient of 0.8 feet per mile. Paddlers and boaters should be prepared for the river's size and current, particularly after periods of heavy rainfall when flows increase significantly. Access availability and ramp conditions can vary seasonally, so it's advisable to check current conditions before planning your trip, as some area ramps may have limitations depending on water levels.