70's stereo system or tunnel ventilation shaft?

The Kingsway tunnel ventilation shafts are two identical structures on the opposite sides of the Mersey which provide ventilation for the Kingsway road tunnel. Completed in 1971 when the Kingsway tunnel was completed between Liverpool and Wallasey. The two towers dominate the riverfront of north Liverpool and Wallasey sited on the dock road and on the Wallasey promenade. The buildings have a simple composition with a central tower/chimney with two air intakes on each side. The buildings are very utilitarian no decoration compared to the other tunnel ventilation shafts. The buildings are mostly concrete with exposed concrete on the tower (or chimney) and white coloured concreted for the two air intakers. The base is built with a dark brick. Although the buildings may look very simple they actually have subtle curves on the tower and air intakers which are much more pleasing than straight edges.

The towers were built by the civil engineering firm who built the Kingsway tunnel directly below each structure, Edmund Nuttall Limited (now known as BAM Nuttall Limited).

In a study following the fire in the Mont Blanc Tunnel in 1999, inspectors from the European Union rated the Kingsway Tunnel as "good", one of only eight to receive that rating in Europe.