Work starts later this month on a £3.8 million project to replace the bridge deck on Dunheved Bridge over the River Tamar on the Devon - Cornwall border.
The work involves replacing the existing bridge decks, with newly reinforced steel and concrete decks and will be completed in March 2007.
The innovative project involves building one of the new decks on temporary supports and then sliding it into place once the old deck is demolished, while maintaining the flow of traffic.
Highways Agency project sponsor, Lynton Cocks, said: "Replacing the bridge decks in this way allows us to keep the traffic flowing on the A30 while the works are in progress. We are anticipating only a low risk of delays during the project."
The phased scheme will take place as follows:
- The embankment on the south side of the A30 will be widened at the bridge and the new westbound deck constructed on temporary supports. Two lanes of traffic will be maintained in each direction for the majority of this phase.
- Westbound traffic will then be diverted onto the new westbound deck and eastbound traffic onto the existing westbound carriageway.
- The existing eastbound deck will be demolished and a new deck built on the existing substructure
- Eastbound traffic will be diverted onto the new eastbound deck and the original westbound deck will be demolished.
- The new westbound deck will then be slid into position and carriageway tie-ins completed.
- The temporary supports will be demolished.
During the course of the scheme some short-term lane closures will take place in both directions at various times. A short-term contraflow will be in operation while the new deck is slid into place. A temporary 50mph speed limit will also be in operation at the works site.
Work on the project will take place between 7am and 7pm Mondays to Fridays with occasional weekend and night-time work.
NOTES TO EDITORS:
1. The Highways Agency is an executive agency of the Department for Transport. It manages, maintains and improves England's motorways and trunk roads on behalf of the Secretary of State.
2. The Highways Agency traffic information website is at http://www.highways.gov.uk/trafficinfo.
3. For real-time traffic information, the Highways Agency 24-hour voice activated telephone service is on 08700 660 115. (Calls from BT landlines to 0870 numbers will cost no more than 8p per minute; mobile calls usually cost more)
4. For general information about the Highways Agency and its work, visit the Highways Agency website http://www.highways.gov.uk, or telephone the Highways Agency information line on 08457 50 40 30 (Calls from BT landlines to 0845 numbers will cost no more than 4p per minute; mobile calls usually cost more. Service operates: 08.00 - 20.00 weekdays, 09.00 - 17.00 weekends).
5. Contractors for the project are Dean and Dyball.
Safe driving at roadworks During 2005, five workers were killed and 12 seriously injured in the course of their work on Highways Agency roads. This was the worst year since 1999.
For the safety of all road users and roadworkers, drivers approaching roadworks are advised to: * Keep within the speed limit - it is there for your safety. * Get into the correct lane in good time - don't keep switching. * Concentrate on the road ahead, not the roadworks. * Be alert for works' traffic leaving or entering roadworks. * Keep a safe distance - there could be queues in front. * Observe all signs - they are there to help you.
Remember that tiredness kills. Take regular breaks from driving.
ISSUED ON BEHALF OF THE HIGHWAYS AGENCY BY THE GOVERNMENT NEWS NETWORK SOUTH WEST.
Client ref WW297/SWW/06