Execution of cleaning work in the tunnels in the course of the BAB44 and B27 in the area of the East Hesse Operations 2020-2022.

Cleaning area = 3.50 m height:

- Pre-cleaning of the tunnel walls using a high pressure water jet approx. 51 520.00 m;

- application of cleaning agents;

- Main cleaning of the tunnel walls by means of equipment carrier with tunnel washing machine (rotating brushes) approx. 50 700.00 m;

- Rinsing the tunnel walls with at least 180 bar approx. 50 700.00 m;

- Clean emergency walkways using a spray bar approx. 50 700.00 m;

- cleaning the road approx. 192 520.00 m 2nd ;

- Clean tunnel facility 2 184 pieces