Motorway No.12: Tewkesbury-Ross Spur; Bridge of River Severn at Queenhill
|Date range||1946 - 1965|
|Location||National Archives (see all files stored here)|
|File base||Series MT, subseries MT 95|
This file contains lists of boreholes. Lots and lots and lots of them. And a few technical drawings of bridge girders.
If counting boreholes is your thing, then great. For those of us trying to find out about plans for the M50, I'm afraid you'll have to look elsewhere.