|Many cast iron overbridges were rebuilt as road traffic
increased in weight and volume. Those that remain are mostly on
lightly-trafficked lanes, or only carry pedestrians. They normally have a
weight restriction, and the width of vehicles that can cross them may be
limited, in an effort to prevent use by heavy vehicles.
Bridge number 112 carries Hartley Bottom Road over the railway between Longfield and Meopham. It has cast iron beams, but is otherwise of brick. Steel bracing has been added between the beams. Steel posts in the road enforce a width restriction.
Domneva Road bridge at Westgate-on-Sea is another bridge with cast iron beams. Bracing has been added rather more neatly than at Hartley Bottom Road. There is also a width restriction in the road.
Mitcham Road bridge, Tooting retains its outer cast iron beam and a cast iron parapet. Both feature decorative panelling. The bridge has been strengthened so that it can carry heavy traffic.
Bridge 14, south of Ashurst (New Forest), carries a forest track and has six cast iron beams. The beams were cast in Southampton in 1848, but the ornate parapet screens were replaced as recently as 1991 by the Works Maintenance Engineer, Eastleigh. These have timber frames and decorative cast iron grilles.
This bridge carries Church Road over the Windsor line at Richmond station. There are two spans, supported on brick piers. That south of the main line crossed sidings that are no longer there. The beams are in the form of a very shallow arch, in order to reduce stress in the lower edge. Brick jack arches span between the beams and the parapet is also cast iron. The outer beam is lettered JOSEPH BUTLER & CO STANNINGLEY IRONWORKS NR LEEDS 1858. The adjacent spans over the branch from South Acton were built later and have wrought iron plate girders supporting brick parapets. The contrast between the two types of construction is clearly demonstrated here.
There are two similar cast iron beam bridges on the Tunbridge Wells to Eridge line. Both have brick jack arches between the beams. This is Station Road bridge, which spans the Spa Valley Railway at Groombridge station.
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This page was last updated 31 May 2011