MIG acquired its ownership interest in Warnow Tunnel in December 2000 through ETI, which was assumed by ALX on 2 February 2010 as part of the MIG demerger.
Since inception, ALX has held a 70% equity interest in the Warnow Tunnel. In August 2018 ALX acquired a remaining 30% equity interest
The Warnow Tunnel has two lanes in each direction. The main toll plaza, located on the eastern side of the tunnel, has five lanes in each direction plus one bi-directional lane (eleven in total). The bi-directional lane can switch directions to accommodate additional traffic volumes during peak periods. ETC is available in all 11 lanes, with two lanes dedicated to ETC only.
The road allows users to cross under the Warnow River which divides Rostock. Alternative options to cross the Warnow River include ferries, which take more than 15 minutes to complete the crossing, or a 19 kilometre journey via untolled roads through the Rostock central shopping precinct which can be subject to delays during peak periods.
There are five vehicle categories for the payment of tolls on the Warnow Tunnel as outlined in the below table.
||Passenger car, motorcycle
||Minibus, small transporters
Coach (>16 seats)
Tolls for all five vehicle categories are set as a function of the base light vehicle toll. Seasonal tolling rates apply to cash payments and vary between winter and summer months, while ETC toll rates remain the same all year round. Refer to factsheet for further details.
Tolls for all five vehicle categories are set as a function of the base light vehicle toll.
Toll are set semi-annually in May and November using the below formula based on whether the forecast pre-tax equity IRR is:
- > 25%: Tolls remain fixed
- 17%–25%: Tolls may increase by CPI
- < 17%: Tolls may increase by greater than CPI
Toll increases are subject to the joint approval of the Federal Ministry of Transport in Germany and the Supreme Highway Construction Authority of the Land of Mecklenburg-Vorpommern.