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River Thames Bridge, GNR Windsor Branch
near South Meadow, Windsor, Berkshire
associated engineer
Isambard Kingdom Brunel
date  8th October 1849
era  Victorian  |  category  Bridge  |  reference  SU961773
ICE reference number  HEW 772
Brunel's wrought iron bowstring arch railway bridge over the Thames at Windsor was built as part of the construction of the Slough to Windsor branch of the Great Western Railway.
This branch wasn't included in the original Parliamentary Act that enabled the building of the GWR because of objections from Eton College, among others. Approval was granted in 1848, subject to provision for the protection of College amenities, including the requirement that the Thames be kept clear where the railway crossed it.
When built, the bridge had a skew span of 202ft. Its three bowstring trusses formed the bays for the two sets of tracks. The trusses were originally carried on 6ft diameter cast iron piles filled with concrete. These were replaced by brick abutments in 1908, which also had the effect of reducing the span of the bridge to 184ft 6in. At the same time, the cross girders and rail bearers were replaced in steel.
In 1861-65, the original timber approach viaducts were replaced by brick arches. The bridge now carries only one set of tracks.
Contractor: Mr George Hannet
reference sources   CEH Lond
Location

River Thames Bridge, GNR Windsor Branch