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Accommodation bridge near Severn Lodge

451 bytes added, 16:07, 27 July 2017
County Boundary Slip: additional info and photo
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{{As of|During June 2017|06}} the design for the remedial work required to stabilise the area was complete completed and work had started to prepare the site for the stabilisation scheme.<ref name=SVRLive>[http://www.svrlive.com/countyboundary County Boundary Slip 2017 on SVRLive]</ref><ref>SVR News 198</ref> The stabilisation scheme will principally involve 'soil nailing', a process used successfully elsewhere along the line after the [[2007 Storm Damage|storm damage of 2007]]. The presence of an underground oil pipeline which runs beneath Bridge 19 prevented the heavy equipment required from accessing the slip area, requiring the SVR to install a temporary crossing at the site.  
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File:County_Boundary_Slip_20170618.jpg | Bridge 19 (left) and the slip area June 2016
File:County_Boundary_Crossing_20170618.jpg | Crossing installed to provide access to the slip area
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The stabilisation scheme principally involves 'soil nailing', a process used successfully elsewhere along the line after the [[2007 Storm Damage|storm damage of 2007]]. Steel rods are driven or bored through the slip into the solid bedrock beneath and secured in place with a concrete grout.<ref>[[Bibliography#Books|Sowden (2012)]] p. 12.</ref> The photograph below shows this work in progress in July 2017. Around 500 of these 'nails' will be required, as well as significant improvements to drainage in the area.<ref name = SVRLive/>
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File:Soil_nailing_20170726.jpg|Soil nailing in progress, July 2017.
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