I am grateful to Parliament for the opportunity to make a statement on the Forth road bridge. As members will be aware, on the night of Thursday 3 December, a necessary decision was taken to close the Forth road bridge to all traffic, cyclists and pedestrians. I will update Parliament on the reasons for that closure, providing information on the mitigation measures that have been implemented and the next steps that we are taking to repair the bridge and return it to normal operation at the earliest opportunity.
I thank the communities around the Forth road bridge, commuters and road users for their continued patience at this time. I reassure them that we are aware of the significant impact of the situation and that we are working with all our partners to minimise the impact where we can. It is an issue of national significance and, with everyone playing their part, we can limit the impact on the local, regional and national economies.
Following the discovery of a serious defect near the north-east tower on Tuesday 1 December, during a routine inspection, the decision was taken to restrict traffic to the northbound carriageway, away from the defective area. Detailed analysis of traffic and of different traffic load scenarios was then undertaken to evaluate the structure and determine whether it was safe to keep the bridge in operation. Results on the morning of Thursday 3 December showed that the existing restrictions needed to be augmented with a further restriction on vehicles over 7.5 tonnes except buses, which had been modelled into the load analysis.
The defect affected one of the two truss end links that support the main truss at the north-east tower. If a further failure had occurred, support would have been lost to the end of the main span-stiffening truss, which would have dropped by between 150mm and 700mm depending on the loading at the time. That would have meant that the load would have been redistributed across to the link on the north-west tower, increasing loads on other elements. The carriageways would also have dropped, further damaging the structure. That kind of damage was a likely outcome and would have required bridge closure for a repair that could have lasted several months.
The operating company, Amey, conducted a series of additional inspections and tests on the welds and joints to the other truss end link immediately after the initial defect was found. The focus was on first inspecting the welds of the adjacent member, which was carrying additional load from the failed member. The inspection and testing were completed by late afternoon on Thursday 3 December and the results were presented to Transport Scotland.
The results showed cracking having started at the same weld location and having spread along the load-carrying weld at the critical pin joint. At this stage, the extent is small but the implications are large. The main truss of the bridge relies on that joint being at full strength to cope with the additional loading due to the adjacent defect, but our experts concurred that, with continual loading, the identified crack would be likely to propagate, leading to the failure of the remaining truss end link. The timescales for that occurring could not be estimated, as a large number of factors are involved, many of which cannot be fully quantified at this stage. However, removing the remaining traffic load from the structure would reduce the loads and stresses on the remaining truss end link and ensure that the travelling public were not put at risk.
As a result of that advice, the decision was taken to close the bridge to all traffic from midnight on Thursday 3 December in order to safeguard the integrity of the structure.
It is anticipated that, following the completion of a successful repair, the Forth road bridge will reopen in time for people to return to work in the new year. The decision to close the bridge was not taken lightly. It is based firmly on the expert opinion of the engineers who operate the bridge day to day and that of independent experts in the field. Every effort is being made to open the bridge as quickly as possible, but safety is the main priority. Unfortunately, the works are weather dependent, given the height and location of the defect on the bridge.
We are aware of the potential economic impact for strategic traffic in the east of Scotland and on people who live in the local communities. This is an unprecedented challenge in the operation of the Forth road bridge. On balance and following the advice from engineers and independent experts, full closure is the right decision. It is essential for the safety of the travelling public and to prevent further damage to the structure of the bridge.
The bridge operators, Amey, have in place a robust inspection regime that aligns with industry standards for a structure of the bridge’s nature. That regime is a continuation of the methodology used by the Forth Estuary Transport Authority. Due to the thorough nature of the regime, specialist engineers are confident in their view that the defects have occurred only in the last few weeks.
We are taking every step we can to alleviate the impact of the closure. Action taken last week will mean that any closure will be much shorter than it might have been if we had waited to take action. We continue to work closely with all partners to co-ordinate our efforts to alleviate the impact of the closure. Every effort and resource available is being deployed to repair the damage to the Forth road bridge and minimise the disruption to the public.
To be clear, FETA reports that are being discussed in the media refer to the other end of the truss end link, where it connects with the north tower at the top, and not to the pin joint at the base of the link, where the defect has materialised. Works to the top of the truss end link were already under way. Specialist engineers believe that the new defect that was identified on Tuesday as part of a routine inspection occurred only in the past few weeks. For the avoidance of doubt, based on the advice and evidence that we have received from those engineers, we believe that the current fault is entirely unrelated to the above project and there is no indication that the on-going repair project in the towers has caused the defect.
The Scottish Government fully funded all FETA programmes after taking over the funding of the annual grant in 2008. Prior to the authority’s dissolution earlier this year, FETA made decisions on its programme and priorities of repairs completely independently of Transport Scotland.
The timing of the closure was communicated to the public within minutes of ministers taking the difficult decision and was covered on evening news programmes, which advised people of the closure and the measures to take when travelling on Friday morning. Local authorities were involved from the early stages and undertook to inform their local communities where possible.
There is on-going consultation with business organisations such as Scottish Enterprise, the Federation of Small Businesses, the Scottish Chambers of Commerce and the Road Haulage Association. We are also in discussions with our other partners such as Police Scotland, other emergency services, NHS Scotland and public transport operators to minimise disruption and deliver our contingency plans.
A comprehensive travel plan was launched for commuters and affected communities on Sunday afternoon to allow people to plan their trips for the working week ahead. We also created a dedicated website, which had more than 85,000 hits on Sunday. It has details of the travel plan along with some questions and answers to help people tailor their travel plans. That comprehensive travel plan was put in place in time for the Monday commute to work. With 100,000 people using the bridge every day, delays and longer journeys are inevitable. Therefore, it is important that everyone—workers and employers—be flexible in working arrangements during this period.
Together with public transport operators, we too will be flexible. The plan will be monitored and adjusted to give the best possible service to the travelling public. ScotRail has provided additional rail capacity as part of the full travel plan. That plan was made available to the travelling public on Sunday to allow people to plan for their journeys to work on Monday. As a result of our monitoring, it has been modified to accommodate commuters where possible. In response to passenger demand, an extra early morning train has been laid on, which leaves Inverkeithing before 6 am. Overall, an extra 8,000 seats are now being provided, and that number will increase further.
Additional subsidised bus services have also been provided. Thirty-three extra buses are providing 11,000 additional seats per day. Along with bus priority measures, they have allowed for reliable journey times to Edinburgh, even in the peak periods.
Both bus and rail services are being served by dedicated park-and-ride sites at Halbeath and Ferrytoll, and we continue to work closely with Fife Council to monitor the operation of those sites.
A dedicated heavy goods vehicle and bus route was implemented from Monday morning. That involved segregating traffic and ensuring that we put measures in place to prioritise bus movements to get the maximum number of people to work and ensure that journey times for HGVs were improved to reduce any impact on the economy.
The travel plan also included alternative routes for road users who use the Kincardine bridge and the Clackmannanshire bridge. Updates to the public were and continue to be broadcast using the traffic Scotland website and Twitter feed, the Traveline Scotland app and traffic Scotland radio. ScotRail and Stagecoach are also providing regular updates.
The plan will be monitored throughout the bridge closure and adapted as necessary. I thank the local communities of the areas for their patience throughout, as I am sure that the closure will cause additional disruption to them. Following our monitoring of the HGV and bus route, the restrictions on it have been relaxed between the hours of 8 pm and 5 am to help to ease the impact on local communities.
The plan is in place, and I will describe today’s situation. Rail services commenced with the additional service at 5.52, which carried approximately 160 passengers. Services between Edinburgh and Fife have been busy, and they have been strengthened where possible to cope with additional passenger flows. Queuing systems have been in place at stations in Fife, and ScotRail staff are in attendance at all stations. The 6.13 from Dalgety Bay was full, and there was no room for 70 passengers at Inverkeithing nor a further 25 passengers at Rosyth. I understand that that service was the only one that passengers were unable to board this morning, but all those passengers were accommodated on the next train.
The A977/A907 Gartarry roundabout, the A977/A876 Kilbagie roundabout and the M876/A876/A895 Higgins’ Neuk roundabout were heavily congested during the morning peak period, but traffic continued to move. Fife Council reported problems on the coast road through Culross. Congestion on the A9 at the Broxden roundabout was heavy at times, but the temporary traffic management at the A9 Keir roundabout worked well and kept the strategic traffic flowing. At 9.30, the roads were running free, but they were still busy at the key roundabouts.
The bus and HGV prioritisation on the A895 between the Cairneyhill and Longannet roundabouts operated well and facilitated park-and-ride buses from Ferrytoll and Halbeath. Stagecoach reported bus journey times of between an hour and 30 minutes and an hour and 45 minutes. However, uptake of the park and ride was low, with loadings averaging 12 per cent at Halbeath and 7 per cent at Ferrytoll. We are doing everything that we can to encourage further use of that bus service. I remind everyone that the successful implementation of the plan depends on the choices that people make. Again, we encourage the public to use the additional public transport services, particularly the bus services.
Emergency vehicles will still be able to use the bridge in blue-light situations, and arrangements have been made with NHS Scotland in respect of other critical medical appointments.
A call with business organisations, which was chaired by the Deputy First Minister, was held this morning. That was an opportunity to share information and identify any practical steps that could be taken. A number of suggestions have been made by business, and ministers have committed to look at all of them in detail.
This is an unprecedented transport challenge. The safety of the travelling public is of paramount importance, and the decisions that we have taken will ensure that that is maintained. Specialists are working day and night to return the bridge to normality, and we will fix the problem as soon as we possibly can.
We continue to work with all partners and the emergency services to manage the impact of the closure and to help to ensure that diversions operate as efficiently as possible. We will continue to share all travel information through the dedicated website.
Members of this Parliament will be aware of the issues that have been raised previously regarding the suspension cables on the bridge and the subsequent action that FETA took to mitigate the impact and halt further deterioration. The residual risk of a potentially lengthy full-bridge closure remained, which supported the decision to progress with a Forth replacement crossing.