What ever laid a bridge normaly proves the bridge unless like in WW2 it was opposed. in the case of my farther who laid the SBG at bremovarden over the canel, they backed off to go forward to just straighten it out with the tracks when they got hit by a hand held anti tank weapon.
PRO = Public Records Office. theer is at least 1500 files on the Assault and armoured Engineers from 1941 to 1950
this includes war diaries.
how it helps
Ossie