Wind Tunnel Testing
Wind Tunnel Testing – Full Bridge Aerolastic Tests, Windshield Modelling and Confirmatory Deck Section Test.
Type of Contract: Services
Contract Value’s: £100,000 - £220,000
Contract Award: 12 August 2009, 30 June 2009 and 22 July 2009.
Current Status: Contract Completed
The Forth Replacement Crossing bridge design model was required to be put through a number of Wind Tunnel studies to test the durability of the specimen design before construction. Three series of tests were tendered for:
1. Full Bridge Aerolastic Tests
This contract required wind tunnel studies compromising a scale model of an entire cable- stayed bridge structure to confirm the aerolastic stability for the final bridge and key stages of construction, including free-standing towers, longest deck cantilever during construction.
Four tenders were received and following a tender evaluation the contract was awarded to the Politecnico di Milano on 12 August 2009.
2. Windshield Modelling
This contract involved wind tunnel studies, comprising a fixed bridge deck section model at different skew angles with various different wind shield configurations.
Five tenders were received and following a tender evaluation the contract was awarded to the Politecnico di Milano on 30 June 2009.
3. Confirmatory Deck Section Test
This contract was to study a bridge deck section model mounted on end springs to represent the dynamic properties.
Five tenders were received and following assessment the contract was awarded to, the Politecnico di Milano on 22 July 2009.
Archaeology
Type of Contract: Works
Location: North and South Queensferry
Tender Value: £248,190
Contract Award: 16 July 2010
Duration of Contract: 14 months
Current Status: Site Works Completed, Laboratory work underway.
The works comprise land based invasive (trial trenching and hand excavation) and non-invasive (geophysical survey) archaeological survey of several areas of archaeological potential, which may be affected by the Forth Replacement Crossing Project. Post survey assessment, analysis and reporting, including publication as appropriate, also forms part of the scope of works which will be packaged and timed to suit land access arrangements within the survey area.
The Contract being adopted is the ICE Conditions of Contract for Archaeological Investigation, First Edition (September 2004) with amendments and additional clauses. The Contract shall be a lump sum agreement for services on a phased availability basis.
The procurement competition was concluded under the restricted procedure. The Contract Notice was submitted for publication in the OJEU and on the Public Contracts Scotland portal on 17 March 2010. Seven pre-qualification questionnaires were received and six companies were invited to tender;
Further to a tender evaluation, the contract was awarded to Headland Archaeology on the 16 July 2010.
Civil and Electrical Work for Radar
Type of Contract: Works
Location: North Queensferry
Tender Value: £126,291
Contract Award: 6 December 2010
Duration of Contract: 2 months
Current Status: Contract Completed
A new radar facility has been installed for Forth Ports, as the new Forth Replacement Crossing will restrict the existing facility.
The contract comprised the civil and electrical engineering works associated with the installation of a new radar station. The Civil engineering works comprised removal of a listed archway structure, construction of a concrete foundation and radar station compound, arboriculture coppicing works, provision of new Public Utility connections and construction of a masonry radar building. Electrical engineering works comprised provision of new power and telecommunication supplies into the radar building, installation of power supply feeder pillar and permanent standby generator, installation within the container of equipment for the incoming power supply and associated UPS, automatic transfer switch and LV panel board and disconnection and termination of archway lighting and associated power supply at source.
The Conditions of Contract used were the “ICE Conditions of Contract” for Minor Works, Third Edition (“April 2001”) with amendments and additional clauses and will be on a re measurable basis.
The procurement competition was conducted under the restricted procedure.
A total of 25 expressions of interest were received of which 6 submitted a prequalification submission. Following an assessment of each applicant’s financial and technical capabilities, on 1 October 2010, 6 participants were invited to tender.
Both Blackbourne and C Spencer withdrew from the competition due to other tendering commitments. As such four tenders were returned on 5 November 2010.
Following an assessment of the tenders, John Graham (Dromore) Ltd was awarded the contract on 6 December 2010.
Replacement Badger Sett Contract
Type of Contract: Works
Location: South Queensferry
Tender Value: £13,367.60
Contract Award Date: 25 August 2010
Duration of Contract: 30 days
Current Status: Contract Completed
An Environmental Statement (ES) was submitted to the Scottish Parliament in November 2009 in support of the Forth Crossing Bill. Due to the proposed alignment of the road connections to the south of the crossing, the mitigation measures stated in the ES included the exclusion of two badger setts and the provision of two replacement setts. This was progressed as advance works contract to ensure no delay to the principal contract construction works.
The Conditions of Contract adopted for this Contract was the Scottish Government SGTC2 Conditions of Contract for the Purchase of Services. As the estimated contract value was below £50,000 and it was considered a low risk project, the Scottish Government’s Route One Procurement Journey was adopted.
Three specialist ecological contractors were invited to quote for these works;
Further to a quotation assessment, Three Shires Ltd was awarded the contract on the 25 August 2010.
Competition for Supply of Plant Material
Type of Contract: Services
Location: Lothian and Fife
Tender Value: £229,900
Contract Award: 6 May 2011
Estimated Completion: March 2016
Current Status: Contract Awarded
The contract notice for the Competition for the Supply of Plant Material was published in the OJEU and on the Public Contracts Scotland Portal on 22 October 2010.
The contract comprises the preparation, supply and delivery of specified plant material. This is a requirement of the Forth Replacement Crossing landscape and ecological mitigation.
The Conditions of Contract being adopted for this Contract is the Scottish Government SGTC4 Conditions of Contract for the Supply of Goods and will be on a remeasurable basis. The procurement competition is being conducted under the restricted procedure.
Three prequalification questionnaires were received from the following companies;
Following and assessment of each applicant’s financial and technical capabilities, both Cheviot Trees and Johnsons of Whixley Ltd passed the evaluation criteria, enabling them to progress to the next stage of the procurement competition.
On the 3 February 2011, both Cheviot Trees and Johnsons of Whixley were invited to tender. Both companies submitted a Tender submission on the 11 March 2011. Further to a tender evaluation, the contract was awarded to Johnsons of Whixley Limited at a value of £229,900.
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