allowed fast Bristol trains to overtake slower trains that called at Creech St Michael Halt which only had platforms on the outer (Bristol) tracks. Slow trains between Taunton and Castle Cary ran via Durston station to on the Yeovil Branch Line where there was another junction with the Castle Cary route, which meant that they ran through Cogload and Creech St Michael on the outer tracks. On 29 March 1986 the two Bristol lines were taken out of use between Cogload and Taunton, returning the line to its original two tracks. The following weekend saw Cogload signal box closed on 5 April, and the points and signals were then operated from Exeter Panel Signal Box. A slight realignment of the up Bristol line at the same time allowed the junction to be moved and the speed limit raised to . Flyover In 1931 two embankments were built. A long, shallow one alongside the down Bristol line between Durston railway station and Cogload; and a shorter, steeper one alongside the down Castle Cary line to bring trains back to ground level before the line passes beneath the road bridge at Charlton, a short distance east of the junction. Between the two embankments is a large steel Warren truss girder bridge. The two trusses are asymmetrical and different sizes as the bridge is constructed on the skew due to the angle that the two lines make to each other. The larger truss is long and weighs ; the smaller truss is and weighs . Vertical suspenders are attached to alternate cross-girders, which are spaced at centres. These support two longitudinal bearers beneath the rails, above which is a steel deck. The whole steelwork weighs . References Rail transport in Somerset Great Western Railway Rail junctions in England