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    Marr cranes’ 100 m flue gas stack at North London: modular lift lessons for engineers

    September 3, 2026|

    Reviewed by Tom Sullivan

    Marr cranes’ 100 m flue gas stack at North London: modular lift lessons for engineers

    First reported on New Civil Engineer

    30 Second Briefing

    Marr Contracting has completed installation of a 100m modularised flue gas stack at the North London Heat and Power Project, using heavy-lift cranes to assemble large prefabricated sections on a constrained energy-from-waste site. The chimney stack, built from modular steel sections with integrated flues and access systems, was lifted into place to minimise work at height and reduce on-site welding and bolting. For contractors and designers, the project reinforces the viability of modular tall-stack construction on tight urban footprints with complex lifting logistics.

    Technical Brief

    • For other EfW and industrial stacks, similar modular crane strategies can materially reduce high-risk erection activities.

    Our Take

    Marr Contracting’s work on the 100 m flue gas stack at the North London Heat and Power Project aligns with its deployment of the Favelle Favco M2480D on Encyclis’ Walsall Energy Recovery Facility, signalling a niche in complex vertical lifting for UK energy-from-waste infrastructure.

    Within our 917-item Infrastructure corpus, Marr Contracting appears mainly on technically demanding schemes, suggesting UK clients are turning to specialist heavy-lift contractors where stack height and constrained urban sites in regions like North London raise both safety and programme risk.

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    Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.

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