Essential works took place to replace the unsafe road crossing over Dunure Road by reopening a former railway tunnel as a new underpass.
Essential works took place to replace the unsafe road crossing over Dunure Road by reopening a former railway tunnel as a new underpass, which safely links pedestrianand cycle paths between Burton and Alloway. During the project the team excavated 4000t of material to create the necessary space for the underpass. After the installation of the pre-cast concrete units, sealing and waterproofing of joints, the carriageway was reinstated.
2500t
6n fill compacted
4000t
material excavated
The scope of the project is to design and implement the following works:
• Site clearance works
• Temporary access road & crane pad construction
• Excavation, including support/protection of existing BT cable
• Place & compact 6N to formation & install blinding concrete
• Installation of precast box culvert & wingwalls by contract lift
• Sealing of joints & waterproofing of structure
• Installation of back of wall drainage
• Backfill to structure with 6N
• Place & compact sub-base to road & footpath
• Kerbing
• Surfacing works
• Installation of safety barrier & fencing
• Realignment of cycleway through the structure
• Landscaping
The project was able to celebrate success and demonstrated best practice within the following areas:
• Story donated five defibrillators to organisations within the council jurisdiction.
• Management of unforeseen change was proactive, resulting in additional works not affecting target dates.
• The success of the underpass construction saw Story be engaged to perform further works for the client, including a sensory garden and cycle path extension.
Story collaborated with South Ayrshire Council to successfully carry out construction activities within a designated two-week road closure period, ARA advised that Story won the tender because our competitors proposed an 11 week closure of the road to complete the works. Despite challenges arising from disruptions and regulatory requirements related to Scottish Water services, Story devised a clever approach to complete the construction of the underpass in two phases, allowing for the creation of a temporary road lane. This temporary solution facilitated the reopening of the road with minimal delay while the installation of the underpass continued.
Network Rail
Upon inspection it was identified that the structure was suffering from defects such as loose brickwork, open joints, parapet leaning/bulging, fractured pattress plates and other minor works areas typical of masonry.
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