George Leslie Ltd

Key Facts

  • Client: Scottish Water
  • Engineer: AECOM
  • Conditions of contract: NEC Option A
  • Contract value: £204,000
  • Duration of works: July 2012 - January 2013

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Reservoir Working

Loganlea Reservoir – Reservoir Maintenance & Safety Works (Pentland Hills, Midlothian)

The project involved general maintenance & improvement works to the existing reservoir, scour tunnel, wave wall, spillway and embankment drainage. The works involved having to scour the reservoir to a safe, monitored, operational level and had the added difficulty of propping the inadequate spillway bridge to access the reservoir crest with the plant and materials required. The Dam is located near the end of a 3 mile, pot-hole strewn, single-track road from the main A702.

The Improvement Works comprised:-

  • Vegetation strip to spillway and spillway apron.
  • Grouting voids under spillway and blocking leakage routes
  • Repairs to 1500m2 embankment and 1100m2 spillway pitching
  • Raising reservoir crest wave wall by 750mm and form 300m RC buttress support to back of raised wall
  • Re-programmed workings to accommodate nesting birds in rock face adjacent to spillway wall area scheduled for grouting
  • Investigate, design and replace choked embankment toe drainage through marsh area to outfall in Loganlea Burn
  • Repairing leaks in scour tunnel and refurbishing valves in valve tower

News updates


The overall project involves the off-site fabrication and installation of a new linkspan structure at Oban Ferry Terminal for client Caledonian Maritime Assets Ltd (CMal).

12th February 2019

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GL return to the Sound of Kerrera

GL making a return visit to the Sound of Kerrera off Oban, to undertake substantial repairs to the breakwater which suffered collision damage following an altercation with a workboat earlier this year.

14th December 2018

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Polmadie Bridge official opening……..

Michael Matheson MSP and Cabinet Secretary for Transport, Infrastructure and Connectivity covered all his portfolios at the official opening of the new Polmadie Footbridge giving pedestrian and cycle transport access,

18th September 2018

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George Leslie Ltd, Blackbyres Road, Barrhead, Glasgow, G78 1DU  |  |  +44 (0)141 881 9131