US 421 Bridge Boat Ramp Location 421 Bridge Boat RampBristolTN37620 Next Event TEHCC Paddling - S Holston Lake - 08/24/2024 - 10:00 am - 2:30 pm Loading Map.... US 421 Bridge Boat Ramp421 Bridge Boat Ramp - BristolEvents 36.559188 -82.041229 Upcoming Events TEHCC Paddling - S Holston Lake - 08/24/2024 - 10:00 am - 2:30 pm