Clive, Many thanks for posting. I found this elevated view of the damage in a post-war Company pamphlet, is this view in the Blitz A.T.B.? Guy Bomb damage map of Lambeth and Southwark.
The 1940 incident and photographs posted by Guy above may be this one below, referred to in - London Mainline War Damage by B W L Brooksbank. Published Capital Transport 2007. 25/10/40 Waterloo Eastern - Metropolitan Junction 09.50: Both through lines blocked by further damage to Blackfriars Road Bridge* Then, just below *From report by Lt.Col. Mount: Subsequent to damage of 16/10, another bomb on 25/10 hit center of Up Main span, blowing out web of main plate girder. Some tramcars were bunched under the bridge: two completely wrecked and three others less seriously damaged (mainly glass). Five drivers and conductors killed; two of Bridge Repair Contractor's men missing and two injured, also two men of 158 RCC and two SR staff seriously injured. Timber trestling provided at once to carry end of lattice girder , which had sunk 13 inches. Pressure piling then resorted to found two steel trestles, which were subsequently erected by 158 RCC to enable lift to be completed. Two other trestles erected either side of tram tracks to support the girder now damaged. 40ft weigh-beam carried by trestles now supports six temporary cross-girders to other main girder. Upon this Up Mail Line opened on 17/11, permitting extension of shuttle service, Charing Cross - Cannon Street. Down Main opened 25/11.
Five victims of the Blackfriars Road bomb killed on 25th October 1940 Arthur Charles Ayres Casualty Arthur Francis Crozier Casualty George William Hall Casualty Edward Robbins Casualty Elizabeth Stevens Casualty