The third track was put into operation at the end of 2010 at the fourth track followed in November 2011. The further development is to be carried out gradually in accordance with the plan and as finance becomes available. Total funds of €370 million have been provided for the upgrade between Nuremberg and Forchheim. Of this, approximately €200 million is provided for the S-Bahn. The upgrade of the 14 kilometre-long section between Forchheim and Eggolsheim, which was scheduled to be carried out between 2011 and 2015, is estimated to cost €190 million. The eight-kilometer section south of Forchheim (km 31.2 to 39.7) was allocated €115 million through a joint venture. Construction work on the 16-kilometre-long section from south of Eltersdorf through Erlangen to Baiersdorf, began in November 2011. The section is being built in four sections and involves the rebuilding of various railway tracks and engineering structures. The quadruplication of the section from Baiersdorf to Forchheim is to take place from 2016 to 2018, the extension to Neuses until 2022. Altogether this section is 13.5 kilometres-long. The new tracks will be built to the east of the existing tracks. This work will cost €300 million. The quadruplication to Ebensfeld was expected to be completed by 2017, according to the planning goals of 2008. The federal government now expects (as of 2011) to complete the upgrade project (including for freight traffic) before 2025, with the delay being caused by a lack of finance. The cost of planning approval section 25, between Zapfendorf (km 77.7+07) and Eierberge Tunnel (km 87.2+69), was finally established as €58,883,020 (net). Among other things, an overhauling facility with two relief loops will be built in Unterleiterbach. The work was due to be completed by the end of 2015. Costs and financing According to the federal government, of the estimated total costs of €5.36 billion, (net present value of planning, land acquisition and construction costs) €2.668 billion had already been spent in June 2013. This would mean the expenditure of €2.692 billion was still outstanding. The estimated cost of the Ebensfeld-Erfurt high-speed line amounted to €2.9 billion (as of 2011). At the end of 2013, the estimated costs were reduced to €5.281 billion. Of that, €3.012 billion had been spent up to the end of 2013 and €2.268 billion remained to be spent. In 2010, the total estimated cost of the project (new construction and upgraded line) was