£5bn price tag for Thames crossing planned to relieve pressure on Dartford
Three locations have been put forward as possible sites for a new Thames River crossing linking the M25 north of the Thames in Essex with the M2 south of the river in Kent.
The longest of the three options, this Option C route will pass through undeveloped land that is designated as Green Belt.
The consultation document released today went on: "A route at this location would also pass through environmentally sensitive areas, including the Kent Downs Area of Outstanding Natural Beauty, ancient woodland and the Thames Marshes Ramsar site, where development would need to be proven to be of "overriding public interest" before it could go ahead.
"Overall, Option C would result in the greatest impacts on environmentally sensitive areas of all the options."
The Option C capital cost would be between £3.1 billion and £3.2 billion. There is also a variant to Option C which would include the widening of the A229 between the M2 and the M20 in Kent, effectively providing a new direct link road from the M25 all the way south to the M20.
The capital cost of this variant would be between £4.9 billion and £5 billion.
Announced today by Roads Minister Stephen Hammond, the other two options are:
Option A: A crossing at the site of the existing A282 Dartford-Thurrock crossing that links the M25 north of the river in Essex with the M25 south of the Thames in Kent.
Option B: Connecting the A2 Swanscombe Peninsula with the A1089 in Essex.
Option A's capital cost is between £1.2 billion and £1.8 billion, while Option B's capital cost is between £1.8 billion and £2.2 billion.
Roads Minister Stephen Hammond at the Dartford Crossing
The consultation document said that as Option C and the Option C variant costs were so much greater than for the other options, "this may mean that any revenues received from crossing users are not sufficient to meet the total project costs over the projected length of the project concession".
It went on: "Additional financial support may therefore be required from public finances in the event that the Government chooses to develop Option C or the Option C variant."
The document said that each location option was likely to be feasible to deliver, in terms of construction, value for money and financing and that each location option had been shown to reduce congestion at the existing crossing, albeit to varying extents.
Mr Hammond said: "With traffic levels expected to increase by a fifth over the next 30 years, it is vital we take action now on the future of a new Lower Thames crossing to make sure that our road network is able to meet the future economic needs of the country."
He went on: "There are some tough decisions to be made, but this is the first step in making sure that the residents, businesses and motorists who rely on the crossing receive the service they expect and deserve in the years to come.
"I encourage anyone who uses the existing crossing or has an interest in the location of the new crossing to let us have their views on these proposals. This will enable us to make the right decision on the location of the new crossing."
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