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[[File: Bridge_21_20150607.jpg |thumb|300px|right| Borle Viaduct (Bridge 21)from the Severn Valley Way looking west]] Borle Viaduct (Bridge 21) carries the SVR over Borle Brook, which feeds into the River Severn from the hills to the west of the Railway. Like other bridges on the Severn Valley Railway, it was built with the capacity for dual tracks but only ever installed for single line running.
The viaduct is 42 yards in length, with four arches of 25ft span. The viaduct has suffered from mining subsidence over the years. Regular re-ballasting to overcome this has resulted in the line now being above the original parapet walls<ref>From The Window, Severn Valley Railway</ref>.
==Borle Brook is normally an insignificant stream, but during the ==[[2007 Storm Damage File: Borle_Viaduct_20170618.jpg | freak storm of June 2007thumb|300px|right| Borle Viaduct looking east]] it became a raging torrent which damaged Borle Brook rises in the hills to the concrete and brick 'training walls' upstream and downstream west of the viaduct itselfRailway. It took some months for passes near the water level in former [[Collieries served by the brook to subside sufficiently for repairs to be carried out; these involved soil nailing Severn Valley Railway#Billingsley Colliery| Billingsley Colliery]] and installing rock filled 'gabion' baskets[[Collieries served by the Severn Valley Railway#Kinlet Colliery| Kinlet Colliery]] before flowing under Borle Viaduct. The delay meant this was From there it passes under [[Brooksmouth Bridge]], via which the last area to be reinstated shortly before Severn Way runs along the public re-opening bank of the whole line in March 2008River Severn between [[Highley]] and [[Arley]], before exiting into the River Severn.
==See also==
[[List of infrastructure]]<br>
[[Fishermen's Crossing | Towards Bridgnorth]]
== References==
<references />
