Cannon Street Railway Bridge - London, UK - Railroad Bridges on Waymarking.com

Wikipedia tells us about the bridge:

"Cannon Street Railway Bridge is a bridge in central London, crossing the River Thames. Downstream, the next bridge is London Bridge, and upstream Southwark Bridge. It carries trains over the river to Cannon Street station on the north bank. It was originally named Alexandra Bridge after Alexandra of Denmark who was the wife of the future King Edward VII.

The bridge was designed by John Hawkshaw and John Wolfe-Barry for the South Eastern Railway. It was opened in 1866 after three years of construction. In its original form, it carried the railway over the Thames on five spans standing on cast-iron Doric pillars. It was subsequently widened between 1886–93 by Francis Brady and extensively renovated between 1979–82, which resulted in many of its ornamental features being removed and the structure taking on an even more utilitarian appearance than before.

It was the scene of the Marchioness disaster in 1989."

The Engineering Timeline website further tells us:

"Cannon Street Railway Bridge
River Thames, east of Southwark Bridge, London
Associated engineer: Sir John Hawkshaw
Date: 1863 - 1866
Era:  Victorian  |  category  Bridge  |  reference  TQ324806
ICE reference number  HEW 2251

In 1861, the South Eastern Railway Company was responsible for the trains running into London Bridge Station. They wanted to extend their line across the Thames so that trains could reach the City of London.
In that year, they obtained permission to do this, and set about building Cannon Street Railway Bridge, which takes the line to Cannon Street Station on the north bank. The bridge was designed by Sir John Hawkshaw, then engineer to the South Eastern Railway. Construction began in 1863.

Each pier of the bridge consists of four cast iron cylinders sunk through the river bed to the London Clay below. Each is filled with concrete to the level of the bed and then lined with brickwork above. The cylinders are shaped like Doric columns — all are fluted and the outer ones have Doric capitals.

The spanning part of the bridge is made of horizontal wrought iron plate girders, each 2.5m high. The two outer girders have double web plates.

In 1886-93, the bridge was widened by the addition of two further cylinders to each pier on the western side. Further work was done in 1910-13, when the bridge was strengthened to carry heavier class locomotives.
In the early 1980s, the bridge underwent major strengthening work, which included pressure grouting to fill the voids between the inner surface of the iron cylinders and the the brick lining, the addition of reinforced concrete collars at the top of the cylinders, and the replacement of the original wrought iron crossheads with reinforced concrete beams."

The photographs for this submission were taken from the South Bank riverside footpath. The co-ordinates are for a point just to the west of the southern end of the bridge. Good views are also possible from Southwark Bridge that is for vehicles and pedestrians.