A Great Western Railway service from Cardiff to Taiunton passes under the M5 viaduct at Huntworth near Bridgwater. It is formed by units 158747 and 158749.
<a href="//commons.wikimedia.org/wiki/User:Geof_Sheppard" title="User:Geof Sheppard">Geof Sheppard</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>