2.3 The increase in programme costs is not the result of a failure of one particular project or contract. Costs on most of the 36 main works contracts on the central section have increased, including contracts for tunnelling, civil engineering, station construction and fit-out, and implementing the systems required to operate the railway and stations. The biggest increases have been on the contracts to install track and key systems in the tunnels and some of the new stations such as Whitechapel, Bond Street and Paddington (Figure 4). Whitechapel in particular has seen larger spend than anticipated as a result of difficulties building around existing London underground and overground lines and station architecture.
| Figure 4 Cost increases have occurred across the programme |
| Forecast costs | Cost increases | ||||
| Contract | Target at | Jan 2015 | Dec 2018 | Award to | Award to |
| (£m) | (£m) | (£m) | (£m) | (%) | |
| Tunnelling, shafts and portals | |||||
| Eastern tunnels1 | 484 | 754 | 730 | 246 | 51 |
| Western tunnels1 | 490 | 737 | 749 | 259 | 53 |
| Thames tunnel1 | 196 | 269 | 229 | 33 | 17 |
| Station Tunnels East - Early Access Shafts and Sprayed Concrete Lining Works1 | 246 | 360 | 510 | 264 | 107 |
| Pudding Mill Lane Portal Civil Works1 | 52 | 131 | 184 | 132 | 254 |
| Eleanor Street and Mile End Shafts Civil Works | 46 | 56 | 255 | 209 | 454 |
| Station main civils | |||||
| Farringdon Station | 239 | 436 | 634 | 395 | 165 |
| Liverpool Street Station | 147 | 271 | 374 | 227 | 154 |
| Paddington Station | 181 | 339 | 571 | 390 | 215 |
| Bond Street Station | 126 | 182 | 412 | 286 | 227 |
| Whitechapel Station | 110 | 229 | 659 | 549 | 499 |
| Tottenham Court Road Station | 98 | 135 | 282 | 184 | 188 |
| Woolwich Station | 70 | N/A | 234 | 164 | 234 |
| Route-wide civil engineering and systems | |||||
| Systemwide (Tunnel track and electrical fit-out) | 323 | 360 | 956 | 633 | 196 |
| Platform Screen Doors | 27 | N/A | 63 | 36 | 133 |
| Signalling | 51 | N/A | 131 | 80 | 157 |
| Communications and Control | 43 | N/A | 139 | 96 | 223 |
| Other | |||||
| Ilford Stabling Sidings1 | 54 | N/A | 153 | 99 | 183 |
Notes
1 Contracts completed prior to December 2018 and show their final values. The figures for Thames Tunnel and Pudding Mill Lane reflect the costs when they were at 98% and 99% complete respectively - the final 100% figures were not reported in Crossrail's Board reports.
2 Target at award denotes the anticipated cost of the contract at award and does not include adjustments for risk. Other cost values are contractors' forecast of final costs which may include adjustments for cost risks where the contract is not yet complete. All values are drawn from Crossrail Ltd board reports.
3 All values are in cash prices.
4 N/A means that the forecast costs of these contracts was not reported in January 2015.
| Source: National Audit Office analysis of Crossrail Ltd information |