 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.