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Calstock Viaduct
Calstock, Tamar Valley, Devon
associated engineer
R. Church
W.R. Galbraith
date  1904 - 1907
era  Modern  |  category  Railway Viaduct  |  reference  SX432687
ICE reference number  HEW 595
A handsome, reinforced concrete block viaduct over the River Tamar, built to carry a branch line of the London & South Western Railway.
The massive blocks of ferro-concrete were precast to 5ft x 3ft x 2ft, and the overall look mimics that of stone. The roadway is supported by 12 semicircular arches, each 60ft in span, six of which carry the tracks across the river itself. The underside of the arches are 108ft from ground level and the concrete foundations are sunk as deep as 47ft in places, into sandstone. The piers taper upwards from 35ft x 16ft at base to 17ft 6in x 7ft 6in at top. The causeway measures 14ft 6in between the parapets.
Contractor: John Charles Lang
reference sources   CEH South

Calstock Viaduct