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[[File: Bridge_21_20150607.jpg |thumb|300px|right| Borle Viaduct (Bridge 21)]]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.Way looking west]]

Borle Viaduct (Bridge 21), which is situated between [[Arley]] and [[Highley]], carries the SVR over Borle Brook. Like other bridges on the Severn Valley Railway, it was built with the capacity for [[Double track | 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 [[Fishermen's Crossing]] lies a few yards to the north, with the site of the years. Regular re-ballasting former [[Kinlet and Billingsley Sidings signal box|Kinlet and Billingsley Sidings]] a similar distance to overcome this has resulted in the line now being above the original parapet walls<ref>From The Window, Severn Valley Railway</ref>south.

Borle Brook is normally an insignificant stream==The viaduct in preservation==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>. Although originally there was no edge protection on the viaduct, sets of post and rail fencing were added.  ===Refurbishment in 1977===During winter of 1976-77, but during tie bars were inserted in the viaduct to strengthen it as part of the program to upgrade the line for heavier locomotives. The work was carried out with the assistance of the [[2007 Storm Damage | freak storm of June 2007Manpower Services Commission]] it became . Intense cold and heavy rain brought work to a temporary halt while a raging torrent which damaged large slip at [[Sterns]] and the concrete collapse of part of [[Bridgnorth]] station car park were dealt with. Services in early 1977 ran for some weeks between Bridgnorth-Highley and brick 'training walls' upstream and downstream of Bewdley-Arley until work on the viaduct itselfwas completed<ref>SVR News 42-43</ref>. It took some months  ===Refurbishment in 2019===During winter of 2018-19 contractors were appointed for the first phase in renovating the structure, which was showing fresh signs of water level in penetration. Work began on 8 January with removal of the brook track, ballast and material down to subside sufficiently for repairs the existing concrete “flaunching”. Investigation revealed that the water penetration was occurring at the edge of the area filled in 1977 which had been shuttered and a mortar capping applied to be carried outseal it; these since that time the capping had failed and the shuttering rotted away.<ref>[https://www.svrlive.com/winterworks2018-19 SVR Live Winter Works 2018 / 19]</ref> The remedial work involved soil nailing some additional drainage discharge points being provided, an application of high specification sealer and installing rock filled 'gabion' basketslayers of new imported fill material. The delay meant works also included the replacement of the fencing with more appropriate steel tubing fencing as used elsewhere on the SVR.<ref>Bond C., reported in SVR Forum 7 December 2018</ref> £111,619 was spent on this on stone and brick work repair, with a contribution of £70,000 from the [[Severn Valley Railway Charitable Trust Ltd|Charitable Trust]].<ref name=SVR2019>SVR(H) annual report and financial statements for the period ended 5 January 2020</ref><gallery mode=packed heights=150px style="text-align:left">Borle_Viaduct_20200912.jpg|Lineside view showing the new fencing</gallery> Preventative maintenance planned for 2020-2021 was put on hold due to the effects of the last area [[2020 coronavirus disease (COVID-19) pandemic]]<ref name=SVR2019/>. ==Borle Brook==[[File: Borle_Viaduct_20170618.jpg |thumb|300px|right| Borle Viaduct looking east]]Borle Brook rises in the hills to be reinstated shortly the west of the Railway. It passes near the former [[Collieries served by the Severn Valley Railway#Billingsley Colliery| Billingsley Colliery]] and [[Collieries served by the Severn Valley Railway#Kinlet Colliery| Kinlet Colliery]] before flowing under Borle Viaduct. From there it passes under [[Brooksmouth Bridge]], via which the public re-opening Severn Way runs along the bank of the whole line in March 2008River Severn between [[Highley]] and [[Arley]], before exiting into the River Severn.

The photograph shows the Viaduct as seen A public footpath from the Severn Way looking runs beneath Bole Viaduct on the north side of Borle Brook, giving access to the westside of the viaduct.