The London Borough of Hounslow is now inviting bids for its long-awaited highway maintenance PFI, which could be worth up to £1.4 billion.
Work to be carried under the contract, which will run from June 2012 to June 2042, includes maintenance of carriageways, footways, streetlights, signs, traffic signals, bridges and street furniture.
Over the course of the 30 year deal contractors will also be required to design and build new improvement schemes including car parks.
The PFI credit allocation from the government for this project is estimated at £267 million.
Between three and six contractors will be invited to tender for the contract, which will be procured through a competitive dialogue process.
Interested firms have until 15 January to submit pre-qualification questionnaires.
The council will be running an information event on Monday 7 December at the London Borough of Hounslow Civic Centre.