Classical Concrete
Ugly and derided, motorway viaducts force their brutal way through the Victorian streets of our cities…….. and yet they can have a grandeur of scale and proportion that almost matches the coffered classicism of the Pantheon in Rome. After all, the Romans invented concrete. The Glasgow underworld.
Life, Photography & Other Mistakes - is now dormant 
They do make for grand architecture! The minimalist detailing, the scale of the space and the reflections on the underside of the roadway turn it into a pretty fine spot, indeed.
Thanks for your observations. Not knowing Glasgow very well I had to be quick with the camera. Another through the windscreen shot. It was fortunate that Simon had cleaned the car!
Portland has a new viaduct that I caught last fall on a beautiful sunny day: http://sanslartigue.wordpress.com/2011/10/09/under-the-viaduct/