Our Latest Temporary Works Projects

Temporary Works

Salmon Lane, London, UK

LSY Engineering Consultants Ltd was appointed by Cadent Gas Ltd to provide structural engineering services for the replacement of a 48-inch diameter steel gas main spanning Regent's Canal in London. The existing gas main, supported on masonry piers, required replacement following the identification of a cracked weld. Our appointment included undertaking an initial structural survey, assessing the existing support infrastructure, and providing structural design input for the proposed replacement arrangement. The scope of services covered the assessment of the existing masonry piers, anchor blocks, and supporting structures, together with the design of remedial strengthening measures and structural appraisals for the revised loading conditions. Throughout the project, LSY worked closely with pipe stressing engineers, mechanical engineers, surveyors, and the principal contractor to ensure the successful delivery of the scheme.

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Temporary Works

Weedon Street Bridge, Sheffield, UK

LSY Engineering Consultants Ltd was appointed by Cadent Gas Ltd, to provide structural engineering services for works associated with Weedon Street Bridge in Sheffield. The project involved the removal of two 24-inch gas mains attached to the east and west elevations of the existing bridge structure. Each pipeline extended approximately 70 metres across the River Don and required careful planning and execution due to the age of the bridge, the scale of the pipework, and the operational constraints of the site. Our appointment included: An initial structural condition survey and reporting. Structural assessment of the proposed temporary works and scaffold arrangements. A post-completion structural inspection to verify that the removal works had not adversely affected the bridge.

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Refurbishment, Temporary Works

Brighton Dome, Brighton, UK

LSY Engineering Consultants was appointed by the groundworks contractor to provide temporary works design services for the structural upgrade of the Grade I Listed Brighton Dome, one of the UK's most significant cultural and performing arts venues. Located within the prestigious Royal Pavilion Estate in the centre of Brighton, the Regency-era building required the construction of a new basement area beneath the auditorium to create a level floor arrangement that would enhance the venue's functionality and accessibility. Our scope included the design of underpinning works, temporary excavation support systems, sheet piling arrangements, and associated temporary works required to facilitate the basement formation safely within the existing historic structure.

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As proud members of the Temporary Works Forum, LSY provides specialist temporary works design and independent Category 2 and Category 3 design checks for projects across the UK and beyond. Our experience spans aviation, commercial, education, hotels, infrastructure, leisure, listed buildings, nuclear, rail, residential and retail. From developing practical temporary support schemes to complex and safety-critical designs, our experienced engineers work closely with contractors and project teams to develop efficient and buildable solutions.

Our temporary works expertise includes temporary propping, needling systems, façade and structural retention, excavation support, sheet piling, piling platforms, crane bases and crane pad certification, scaffold support, hoarding, formwork, shoring, temporary foundations and other bespoke temporary structures. LSY has delivered solutions for complex refurbishments, major basement construction, prestigious residential developments, five-star hotels and sensitive historic and listed buildings, including projects such as Brighton Dome, Wentworth Estate and major developments across London and the UK.

With both permanent and temporary works expertise in-house, LSY can support projects from early structural assessment and design through to construction, site inspections and certification. Our hands-on approach, clear communication and focus on buildability allow us to respond quickly to changing site conditions while helping our clients manage risk, programme and cost.

Our temporary works design solutions include:

  • Access platforms
  • Back propping
  • Canti decking
  • Crane bases
  • Crane Pad Certification
  • Excavation batter designs
  • Excavation shaft supports
  • Hoarding design




  • Façade retention
  • Formwork Design
  • Hoarding Design
  • Needling beam systems
  • Piling platforms
  • Protective barrier systems
  • Scaffold base design
  • Sheet piling
  • Shoring
  • Structural appraisal checks
  • Temporary cabin foundations
  • Temporary propping
  • Temporary roof support
  • Thrust blocks
  • Underpinning

To speak to a member of the team please get in touch here

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CPD training

LSY Engineering Consultants Ltd also offers CPD training in temporary works for covering topics like design briefs, category 2 checks, category 3 checks with both theoretical and practical training. To book a session, use the link below. link to book.

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