Camlachie Burn – Watercourse Diversion

The Camlachie Burn site at Biggar Street included the proposed off-line replacement of some 185m of watercourse. The main aim of the works is to provide betterment to the existing flow within the Camlachie Burn which had limited hydraulic capacity due to the ad-hoc nature of the watercourse infrastructure.

Biggar Street
This section of the works is comprised of the following activities:
Diversion of the existing Camlachie Burn. The upstream section of the diversion will connect to the existing Camlachie Burn Culvert through a new culvert outfall at the existing retaining structure. The downstream section would connect to the existing Camlachie Burn culvert through an existing headwall.
Investigative & survey works to determine tie-in details to existing culverts & structures.
Investigative & survey works to determine nature & extent of contaminated materials on site.
Investigative & survey works of badger setts, badger licence application & mitigating construction work measures in line with The Protection of Badgers Act 1992 (c.51) & latest guidance documentation.
All associated flow diversion & over-pumping measures.
Dilapidation surveys prior to commencement of works.
Liaising with all stakeholders, local businesses, utility companies etc prior to & during the works.
Site clearance of invasive species.
Construction of a new maintenance access road.
Diversion of an existing Scottish Power cable.
Possible diversion of an existing Scottish Water Sewer.
Installation of a new spillway from an existing surface water outfall.
Installation of a new surface water manhole & outfall head wall for future use.
Installation of a new gabion retaining wall.
Locate & raise an existing manhole within the Forge Retail park.
Removal of all excavated arisings off site, including both hazardous & non-hazardous materials.
All associated temporary & permanent works designs where applicable.
Installation, maintenance & removal of site compound including welfare, car parking & storage facilities.

Shettleston Road
This section of the works is comprised of the following activities:
Investigative & survey works to determine existing brick retaining wall & foundation.
Investigative & survey works to determine nature & extent of contaminated materials on site.
Investigative & survey works to determine tie-in details to existing culverts.
Dilapidation surveys prior to commencement of works.
Liaising with all stakeholders, local businesses, utility companies etc prior to & during the works.
Partly demolish & re-build existing Scottish Water manholes.
Diversion of existing utility services.
Installation of a new RC open channel & associated barriers & fencing & tie-ins to the existing buried Calmachie Burn culverts at both upstream & downstream ends.
Installation of a new buried precast RC culvert.
Demolition works within an existing builders merchant property (& associated culvert & tie-in installations).
New road works including kerbing, footways, pedestrian crossings, carriageway surfacing & road markings.
Reinstatement of the builder’s merchant yard.
Temporary works to maintain public access to the merchant’s yard & full reinstatement upon completion of the culvert installation works.
Installation of new street lighting.
Modification of existing traffic signals.
All associated traffic & pedestrian management measures.
All associated temporary & permanent works designs where applicable.
Installation, maintenance & removal of site compound.

The Biggar Street section of this scheme required the excavation of some 6,000m3 of contaminated material from the existing channel. This section of the channel passed through the site of an historical Ironworks Forge, and there were numerous contamination issues with the excavated material. To overcome this issue, NRS in conjunction with our appointed sub-contractor ATG, chemically stabilised the excavated material from a stockpile created by NRS during channel excavation. The soils which had been screened previously went through a process of mixing with ATG’s proprietary E-Clay stabilisation technology. This technology does not reduce the contamination loading within the waste soils but it will lock in the contaminants of concern and prevent them leaching into the external environment and further polluting. This technology allows for the excavated material to be re-used on site, and provides an extremely efficient and effective solution to the problem when compared to off-site disposal.

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