My brother used to be enthralled by the superb design of a bridge on the [new] Preston bypass.It was built in two halves, meeting in the centre to rest on a large roller.
Wonderfully simple but from this distant perspective possibly suspicious.
About the same time, on TV, Tracy Island, the home of International Rescue, whenever the Tracy brothersfired up the Thunderbirds, the hidden cave door swung open and two palm trees flattened. [Wallace and Grommit only had the pond flip over].
At the height of the Cold War the Preston bypass morphed into the M6 and the Motorway network.
These superhighways were really designed for jet fighters [there was little traffic in those far off days]. So could that little cantilevered bridge also be swung open in times of trouble - Who Knows?
The excellent Israeli motorways allow a General Mobilisation in 20 minutes!
