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Home › Road › Road projects › Trunk road projects › Forth Replacement Crossing › Project Library › frequently asked questions

Frequently Asked Questions

About the proposals

Q: Why is the scheme being taken forward?
Transport Scotland has set out why the scheme is being taken forward in the Policy Memorandum submitted with the Forth Crossing Bill. In summary, as the Forth Road Bridge suffers a number of operational problems and a range of significant maintenance obligations, it cannot be guaranteed to continue to provide the levels of service needed to support social and economic traffic on this important road transport corridor across the Forth.

Q: Why are you pressing ahead with this project rather than repairing the existing bridge?
Though repair of the main cables of the Forth Road Bridge is technically possible, the works would have to take place over a period of between seven to nine years, causing sustained and significant disruption to traffic. Without an alternative crossing in place, this would have a significant impact on the economy of Scotland, particularly on the east coast.

Q: When will work start and when will it open?
The project is on schedule to start construction in 2011 and will take 5.5 years to complete, opening in 2016. Within this timescale, the connecting roads will take 2 to 3.5 years to construct and the improvements to M9 Junction 1A around 1.5 to 2 years.

Q: Will the scheme meet future increased demand for car travel?
Two lanes in each direction are being provided for general traffic on the Forth Replacement Crossing. The scheme reflects the Scottish Government’s commitment that the Forth Replacement Crossing project will replace, but not increase, the road provision for general traffic across the Firth of Forth. It is not Government policy to provide for unconstrained growth in vehicle traffic and to attempt to do so would be unsustainable. Future travel growth beyond opening of the FRC will need to be satisfied by increased use of public transport. As a dedicated public transport corridor, the Forth Road Bridge will provide additional dedicated infrastructure capacity.

Q: Why was a tunnel not progressed?
Bridge and tunnel options, including comparative costs, were considered as part of the Forth Replacement Crossing Study (pdf) carried out between August 2006 and June 2007. The cable stayed bridge and proposed corridor were selected following consideration of the options in this study. The reasons for this selection were stated by the Cabinet Secretary for Finance and Sustainable Growth in his statement on 19 December 2007. The Environmental Statement Chapter 3 (Alternatives Considered) provides a summary of the bridge and tunnel options considered, and the justification for taking the bridge option forward.

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Economic and financial

Q: How much will the scheme cost?
The estimated scheme cost is £1.7bn to £2.3bn in outturn costs. This allows for optimism bias, VAT and cost of capital to Scottish Government. The estimated cost for the principal contract (the bridge and approach roads) is £0.9 to 1.2bn at 2010 prices, excluding VAT.

Q: Is the scheme expensive when compared with similar projects?
A briefing note, produced and published by the Scottish Parliament on 18 February 2010, contains an analysis of international comparison projects. The paper notes that "Each bridge faces a unique combination of challenges such as length of crossing depth of crossing ... These circumstances make it difficult to compare bridges based on cost alone ...since there are unlikely to be projects that are similar enough to take into account the unique combination of challenges faced by each project." With this caveat, it is noted by the paper that the cost of the Forth Replacement Crossing is on par with other similar bridges such as Rion Antirion, the Mersey Crossing and the Second Severn Crossing, when compared on the basis of weighted cost per usable lane.

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The bridge

Q: What makes the replacement bridge more reliable and more resistant to climate and deterioration than the Forth Road Bridge?
The bridge will be of a modern design using the latest techniques and technology. Key features which enhance reliability include:

  • Using the latest, most durable materials
  • The cables can be replaced with more ease than on the FRB – it can be done as part of normal maintenance works without closing the bridge
  • A dehumidification system inside the box girder reduces moisture, preventing corrosion
  • Using modern paint systems on the structure
  • Use of thicker road surfacing with longer surface life and which can be machine laid making it easier to replace

Q: Will the new bridge close in high winds?
Windshielding will be used on the new bridge to make the crossing less susceptible to closure during high winds. Experience of other estuarial crossings, such as the second Severn Crossing, shows that wind barriers provide a high degree of reliability against closure.

Q: How high are the towers on the bridge?
The top of the towers will be around 207 metres AOD (above ordinance datum), 145m above deck level. This is 50 metres higher than the FRB main tower.

Q: Why does the crossing have to be motorway standard?
The classification of the replacement crossing as a motorway will prevent a reduced level of service that would arise from use of the crossing by non-motorway traffic

Q: Why are hard shoulders required on the replacement crossing?
The hard shoulder will not be used for general traffic other than in situations when the normal running lanes are closed for maintenance or incidents. Hard shoulders on the replacement crossing and connecting roads will also be used by buses diverted from the existing bridge, for example due to high wind conditions.

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Environmental considerations

Q: How will environmental impacts be mitigated?
An assessment of the environmental impacts of the proposed scheme, during construction and operation, has been undertaken. Where practicable, mitigation to avoid or reduce these impacts is identified and will be implemented as part of the scheme. Details of potential impacts, mitigation and residual impacts are presented in the Environmental Statement. These cover land use; geology, contaminated land and groundwater; the water environment; terrestrial ecology; estuarine ecology; landscape; visual; cultural heritage; air quality; noise and vibration; pedestrians and non-motorised users; vehicle travellers; disruption due to construction; policies and plans; and cumulative.

Q: How will you minimise the impact on ecology/wildlife?
Potential impacts on marine and terrestrial wildlife have been carefully considered during the design of the Forth Replacement Crossing. Scottish Natural Heritage has been consulted throughout the project, regarding the scope and methods of assessment and mitigation to avoid, reduce or offset potential impacts to habitats, species and designated sites from the proposed scheme. Transport Scotland continues to work with environmental organisations to address specific mitigation measures for wildlife affected by the scheme.

Q: What will TS do to reduce noise levels once the scheme is open?
The provision of mitigation has been determined in accordance with the Noise and Vibration Policy, submitted with the Forth Crossing Bill, and the methodology described in the Environmental Statement. Proposed mitigation includes a low noise road surface where necessary and noise screening, including bunds and barriers up to 4m high. The Environmental Statement shows that the proposed mitigation is effective in mitigating the adverse effects that would arise. Additional mitigation such as roadside noise barriers is only proposed for those areas where significant adverse effects have been forecast.

Q: What will TS do to reduce air pollution once the scheme is open?
The Air Quality Assessment demonstrates that the Government's Air Quality Strategy objectives and European Union limit values (set for the protection of human health) would be met with or without the proposed scheme at all residential properties.

Q: What will TS do to reduce light pollution once the scheme is open?
Future light levels would not be increased by the proposed scheme. The functionality of the installed lighting will allow for dimming and remote control for future energy reduction to support government objectives to reduce carbon emissions, pollution of the night sky and to reduce impacts on the rural landscape where this can be achieved safely and effectively.

Q: What will be done to minimise carbon emissions as a result of the scheme?
Carbon dioxide is considered at a regional level and an increase is anticipated - consistent with the anticipated increase in vehicle kilometres travelled across the regional assessment study area. Off-setting will be required by greater reductions elsewhere in Scotland.

Q: Is the proposed SUDS hygienic and safe?
The proposed Sustainable Urban Drainage System (SUDS) has been agreed with SEPA, the regulatory authority for pollution of watercourses. These are dry detention basins that provide temporary storage of runoff rainwater. As such, stagnant water and anaerobic conditions are unlikely to occur and we do not consider there to be impacts relating to smell or health. Regular maintenance, which will remove build up of vegetation and sediment, is required as part of the Environmental Statement commitments. The SUDS detention basins will be fenced off to prevent unauthorised access.

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Connecting roads

Q: Why does the scheme not provide a direct link to the M9 motorway?
During 2008, Transport Scotland considered a number of alternative options for the southern connecting roads including two options that provided a more direct link between the Forth Replacement Crossing and the M9. An assessment of the options and the reasoning for their rejection is provided in the DMRB Stage 2 Corridor Report. In summary, one route did not maximise use of existing resources (i.e. the M9 Spur) while the other dramatically increased flows on the A904 round South Queensferry.

Q: What will be the speed limit?
The speed limit for the new mainline road layout will generally be 70mph with an advisory speed limit of 50 mph, as is presently the case, around the curve at Scotstoun.

Q: What provision has been made for motorcycles?
As a consequence of the motorway status of the bridge, motorcycles with an engine capacity less than 5Occ will not be permitted on the Forth Replacement Crossing. Learner riders with a Compulsory Basic Training certificate will be allowed to use the existing Forth Road Bridge on motorcycles, displaying “L-plates" with an engine capacity of less than 50cc. Those wishing to cross the Forth Replacement Bridge' on a motorcycle with an engine capacity of 50cc or greater will have to ensure that they are in possession of a full licence.

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Traffic management measures

Q: What are Intelligent Transport Systems?
Intelligent Transport Systems (ITS) refers to the use of technology to inform motorists of traffic conditions and regulate traffic flow. The technology includes electronic lane signals, variable message signs, CCTV cameras and speed enforcement cameras that are mounted above the carriageway on overhead gantries.

Q: Why has ITS been included in the scheme?
The current road connections to the existing bridge operate satisfactorily for the majority of the day and generally only suffer from congestion at peak periods. The congestion is caused by the close proximity and number of junctions, particularly on the stretch between Halbeath and the bridge, which generate weaving and stop/start driving as vehicles change lanes and merge with the mainstream traffic. ITS can be used to manage this in the problem peak period, representing a far more cost effective, proportionate and environmentally less damaging solution than road widening.

Q: What benefits will ITS deliver?
ITS will be provided on the entire length of the scheme to improve the flow of traffic and operation of the network. One of the functions of ITS will be to implement mandatory variable speed limits, so that vehicle speeds can be managed during congested periods to limit adverse effects on the road network and any resulting environmental impacts. ITS will allow Transport Scotland to manage traffic flows and respond to incidents by controlling both lane use and vehicle speed. ITS can automatically detect incidents and provide information on the road network.

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Public transport

Q: Why are the public transport and FRC strategies separate?
The Strategic Transport Projects Review (STPR) sets the overall strategy. This incorporates both public transport measures and the Forth Replacement Crossing. For the Forth Crossing bill process, Transport Scotland has taken forward those elements which require Parliamentary authorisation. Other issues can be taken forward by others using their existing powers. Transport Scotland is in discussion with the local authorities and SEStrans, regarding the development of the public transport strategy, to maximise the opportunity created by the scheme to encourage greater use of public transport.

Q: What other public transport initiatives have been considered?
The Forth Road Bridge will become a dedicated public transport corridor creating a significant opportunity for public transport and increasing the reliability of bus journey times across the Forth.
The scheme includes measures to promote the development of public transport services by operators. This includes bus priority measures and park and ride access measures at Ferry Toll park and ride. Dedicated public transport links will be provided at the A90.

Q: Can the scheme accommodate a multi-modal system?
The Forth Road Bridge, as a dedicated public transport corridor, provides the option for introduction of Light Rapid Transit, such as guided bus or tram based light rail.

Q: When might Light Rapid Transit be introduced?
A light rapid transit system between Edinburgh and Fife is one of the 29 projects proposed as part of the STPR which has identified projects for the period 2012 onwards. Ministers are still to determine which STPR projects will be taken forward in what order.

Q: Have the needs of walkers, runners and cyclists been considered?
Non motorised users and recreational use in the area has been considered throughout the development of the proposed scheme. As a result, the scheme incorporates new sections of footpaths, cycleways and safe crossing points to maintain these routes and minimise potential increase in journey length for users. No significant impacts on non-motorised road users are forecast. Where routes would be severed by the proposed scheme, diversions and alternative routes are provided to maintain access.

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Construction

Q: What will TS do to reduce the impacts of construction – e.g. noise, pollution and vibration?
A Health Impact Assessment considered the effects of construction and operational issues such as noise, dust, vehicle emissions, loss of green space and visual impacts on the health and wellbeing of local communities. No measurable health effects on the community are predicted to occur.

The Code of Construction Practice, part of the Forth Crossing Bill, sets out measures to provide high levels of protection for communities during construction works. The measures are not just guidance, they are an integral part of the Forth Crossing Bill and all construction activities required as part of the scheme construction must be undertaken in accordance with the Code. The contractor is required to plan and undertake construction works to limit the effect of the scheme on adjacent residents and communities, and there is an overarching requirement to ensure that impacts are not worse than those described in the Environmental Statement. The contractor will have to provide such mitigation measures as may be necessary to ensure this is the case.

Q: What are the proposed working hours on the project?
The proposed normal working hours for the roads element are Monday to Saturday 8am to 7pm hours with a 30 minutes start up period from 7.30am to 8am. This is in line with the guidance provided to contractors by The City of Edinburgh Council. The proposed normal working hours for the marine works are 7am to 7pm.

Q: Will there be 24 hour working?
Continuous working will be necessary for certain marine works. Evening or night time working on the road network connections will only be required in isolated instances or exceptional circumstances.

Q: Who will police the contractor?
The contractor will be required to undertake monitoring as is necessary to comply and be able to demonstrate compliance with the Code of Construction Practice and Environmental Statement. Scottish Ministers will take a significant and leading role in terms of ensuring compliance with environmental mitigation requirements by providing a site-based team who will monitor that the works being undertaken in accordance with the Environmental Statement. The Scottish Ministers will have the authority, through the construction contract, to enforce compliance with the Code of Construction Practice and, for example, to halt works which are not being undertaken in accordance with the contract. Enforcement and/or sanctions may also be imposed by regulatory bodies in line with their statutory responsibilities and powers.

Q: Will access be maintained during construction?
The Code of Construction Practice explains that access must be maintained unless provided for in the Bill or agreed with the relevant roads authority or occupiers. The Bill does not allow for the closure of existing access unless a new access is provided first. The contractor will be required to maintain access to homes throughout the construction period.

Q: What will TS do to minimise impacts from construction traffic ?
The contractor will prepare a Traffic Management Plan, in consultation with the local authorities. A Traffic Management Working Group will also be formed which will include the trunk and local road authorities and the emergency services. This group will review the contractor's traffic management proposals to provide assurance that construction works will be undertaken in line with the objectives set out in the Code of Construction Practice (CoCP). While construction works will lead to additional traffic on some roads, the assessment has not indicated that there will be an unacceptable level of additional impact. The CoCP requires the contractor to develop and implement a Green Travel Plan which will seek to reduce the effects of construction staff travelling to the site on the road network. The CoCP also includes measures which place restrictions on parking.

Q: Where will the main construction compound (South) be located?
The power to acquire land to the west of the proposed route at South Queensferry is being sought through the Forth Crossing Bill and subject to Parliamentary authority the site compound will be sited at this location. It would only be proposed to use the land to the east of the route if the necessary authority is not granted by the Parliament for the preferred location.

Q: How will disruption to road users on the main carriageway be minimised?
Two lanes each way will be maintained so that peak traffic flows are not compromised. The appointed contractors must ensure their designs can be built while maintaining existing traffic flows efficiently and safely.

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Public consultation

Q: Has public/stakeholder feedback been taken on board?
Transport Scotland has considered points made during our consultations and acted upon them where reasonable and appropriate. The Consultation and Engagement Report published in November 2009 provides information regarding the consultative activities we have undertaken during the development of the scheme. We have, throughout the development of the project, attended a large number of meetings with both community councils and other residents associations or interested groups. An overview of all the meetings we have attended is contained within the Consultation and Engagement Report -Appendix B.

Q: Is there still time for my views to be considered?
Until such time as the Bill is passed, there remains the opportunity for continued public participation by way of the Parliamentary hybrid Bill process. At the Stage 2 inquiry stage, detailed scrutiny will take place on the provisions of the Bill. You can continue to provide general comments or raise any questions about the project with the Transport Scotland team at any time using the contact details on this website.

Q: Will there be consultation on construction?
Transport Scotland will consult with local representative groups, such as community councils, throughout the construction period to ensure that any concerns raised by residents can be considered and addressed as appropriate. Transport Scotland intends to establish a community forum for consultations during the construction stages with the community councils. This will provide a structured forum for the views of public and adjacent landowners to be communicated to the project team. We will seek to discuss and agree the format of the consultation with the community council, in due course, and before construction commences.

Q: How will complaints be dealt with?
A 24-hour free-phone hot-line, which will be manned, and visitor centre will enable any enquiries or complaints to be made. A key focus will be to minimise complaints and ensure that any complaints are dealt with efficiently and effectively. Complainants will be contacted within 48 hours of their complaint, to advise them of progress being made in addressing the complaint, and then again following completion of any actions taken to resolve the complaint.

Q: Where will the visitor centre be located?
Transport Scotland is in discussion with the Forth Estuary Transport Authority regarding the availability of surplus office space and land they hold as the location of a temporary education and training centre.

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Compensation

Q: How many properties does this scheme affect?
By using existing infrastructure and road alignments as far as possible, Transport Scotland has been able to reduce the impacts on properties and land. We do not plan to demolish any property.

Q: What compensation is allowed in the Bill?
The compensation provisions in the Bill are the same as those that exist through current legislation. Those people who believe that they are affected by the scheme may wish to take legal advice as to the appropriate course of action in respect of their interests.

Q: What compensation is available for the reduction in property prices as a result of this scheme?
Homeowners may be entitled to claim compensation if they can show that the value of their property has been significantly reduced by physical factors caused by the construction or subsequent use of the Forth Replacement Crossing. Different legal rules and procedures apply depending on whether they wish to claim as a result of the Forth Replacement Crossing construction works or from the Forth Replacement Crossing operation.

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Procurement

Q: How will the project be procured and funded?
A capital funded, design and build process for procuring the new crossing has been selected as providing good value for money, and less risk than alternative approaches, with the greatest guarantee of provision of the bridge by the end of 2016.

There will be three contracts:

  • Principal contract for bridge and connecting roads and ITS over these roads
  • Improvements to Junction 1A and ITS along a related section of the M9
  • Installation of ITS in Fife.

Q: Who is bidding for the principal FRC contract?
The procurement process secured the interest of eight major national and international contractors who formed two world leading consortia including:

  • Forthspan – MT Hojgaard, Balfour Beatty, BAM Nuttall and Morgan Sindall
  • Forth Crossing Bridge Constructors – Dragados, Hochtief, American Bridge International and Morrisons

Q: Will there be jobs created in Scotland?
Tendering legislation demands that the construction of the project be open to international competition. The successful contractor is required to advertise subcontract and supply opportunities through the Public Contracts Scotland website and the construction contract contains a requirement for a minimum number of training places throughout the construction period.

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