A83 Rest and Be Thankful Operational and Landslip Management
Argyll and Bute Council · 12 February 2025
Back to Oban Lorn & the Isles Area Community Planning Group — 12 February 2025 and its agenda
Text extracted from the council's PDF. Layout and reading order may differ from the original.
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A83 Rest and Thankful Operational & Landslip Management
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A83 Rest and Thankful Hillside Monitoring Regime Daily management of the route is continuing behind the scenes by our designated engineering team, to ensure it is safe for road users. This includes:- Daily Remote weather station monitoring Expert weather forecasting Ground saturation estimates Remote timelapse photography Daily decision-making on use of A83 or OMR Weekly (depending on weather, more frequently) Site team observations on hillside condition and watercourse flows Hillside movement surveys & observations. Traffic Management (varying levels of response) Traffic signals Convoy operation Old Military Road SIDR (A82/A85/A819)
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A83 Rest and Thankful Old Military Road (OMR) is operational; • A number of works completed (Phase 1 of MTS) incl. road upgrades, drainage improvements, extend HESCO barrier, widening at bends • Accessible for all forms of transport incl. arctics • Use of convoy traffic management • Other works incl. new structure over Croe Water & further road widening are still required to ensure full resilience & protect access to Argyle & Bute
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A83 Rest and Thankful Image from February 2024 Image from September 2024 Phase 3a & 3b, Retaining Wall; • Significant failure above the retaining wall section, boulders onto A83 considered as the primary risk • At that time, no landslide mitigation fences or pits in this local • Temporary boulder fence provided (flat bed) & under traffic signal control • Permanent additional debris fence being designed and procured Phase 7; • Significant landslip during dry conditions, unanticipated • Failure witnessed during normal procedures • Successful use of debris flow netting & catchpit area • Resulting clearance works completed successfully
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A83 Rest and Thankful QUESTIONS?