Ice thickness on ice passages along Arakchino – Verkhny Uslon and Zelenodolsk – Nizhnie Viazovye routes allows the traffic of automobiles with the mass of 3.5 tons. Ice thickness on the passage Arakchino – Verkhny Uslon is 38 cm, and 40 cm on the route Zelenodolsk – Nizhnie Viazovye.