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Scheme Data Sheet Scheme Name: SA1 Regeneration Form of Contract: ICE 6th Edition Value: £2.2 Million Programme: 2006 to 2007 (24 Months) __________________________________________________________________________________
jbhl.co.uk
Page 1
Principal Contractor: Jones Brothers (Henllan) Ltd Design Responsibility: Client Client: Welsh Government Description / Key Delivery Features: JBHL were engaged by WAG to undertake prestigious infrastructure
construction work on the prestigious SA1 Waterfront Development in Swansea. The work entailed the construction of roadways, foul and surface water drainage systems, provision of utility infrastructure and extensive landscaping.
Relevance: The scheme involved working in deep excavations, tidal working,
traffic management, extensive landscaping, street lighting and signage. The actual construction site was alongside Fabian Way which is an extremely busy thoroughfare that demanded robust traffic management arrangements. The site was fenced off to prevent access by unauthorised persons whilst maintaining access to The Port Authority.
Other significant elements of the contract included: • Construction of a reinforced earth ‘Geogrid’ retaining wall. • Construction of a 900mm storm water outfall which
discharged to sea via a dock headwall. This outfall was up to 4m deep in places needing box shuttering and dewatering facilities.
• Construction of a modular precast concrete box culvert sewerage system. Due to the granular nature of the ground and close proximity of the sea, continuous dewatering was required throughout the construction phase with waste water discharged to stilling lagoons.
• Provision was made for utility infrastructure and JBHL coordinated with the Utility Companies.
Challenges Met / Solutions Provided: Risk was minimised during the project by:
• Full and thorough site investigation to determine location of buried utilities and other infrastructure.
• Detailed planning and programming for the contract including emergency mitigation measures.
• Maintaining a close working relationship with utility representatives to help mitigate potential delays on their
Scheme Data Sheet Scheme Name: SA1 Regeneration Form of Contract: ICE 6th Edition Value: £2.2 Million Programme: 2006 to 2007 (24 Months) __________________________________________________________________________________
jbhl.co.uk
Page 2
part. The following challenges were encountered during the contract: • Working safely in deep excavations. We used telescopic box
type shutters. • Artificially hard material. Although demolition had taken
place on site, we came across many examples of concrete strip foundations and slabs.
• Maintaining traffic flows within Fabian Way. We restricted work on the confines of the site to weekend working as traffic flows were such that any restriction during the working day would cause severe congestion.
All surplus excavated materials on site were recycled and used either as fill or for landscaping purposes. This sustainable approach was in compliance with our Site Waste Management Plan and was fully endorsed by the EA. There was sufficient room on the site to create shallow stilling lagoons where the water from the continuous dewatering activity was discharged. This was far more robust than installing de-‐silting capability within the pumping regime.
Principal Supply Chain Partners: JBHL delivered substantive elements of the contract using our
directly employed workforce and extensive selection of modern construction plant. The following activities were subcontracted:
• Traffic management • Street lighting • Traffic signage • Mechanical/Electrical work on PS • Surfacing works • Security arrangements.
All subcontractor activities were managed in accordance with our ISO accredited processes and procedures.
References: Mr Len Burgess, Project Engineer/Coordinator, Hyder Consulting.
‘I wish to commend JBHL for the way you delivered the infrastructure work at the SA1 Waterfront development. You delivered quality work and applied your extensive knowledge and experience to overcome the many challenges that arose during the contract’.