Feature
Better information for your journey
The National Traffic Control Centre collects real-time information on road conditions.
Quick Links
How We Manage Our Roads
In this section you can find out more about how we manage and maintain these roads and plan for the future
The Project Control Framework
On 1st April 2008 we launched the Project Control Framework. The Framework sets out how we, together with the Department for Transport, manage and deliver major improvement projects.
Traffic news on your desktop
Helpful ways to access the latest traffic information when you need it.
A40 Denham Viaduct Strengthening and Parapet Replacement
A40 Denham Viaduct Strengthening and Parapet Replacement
The Project
The A40 Denham Viaduct is located between J1 of the M40 and Swakely's Roundabout to the south in Uxbridge and carries the A40 over the River Fray and surrounding floodplains.
We have replaced the existing brickwork parapets to bring them up to current standards and strengthened the bridge deck from below to allow abnormal loads to use the A40 in both directions over the structure. This will eliminate congestion on the local diversion route previously used by abnormal load vehicles too heavy to use this section of the A40.
Innovative carbon fibre plate bonding techniques have been used to strengthen the deck, reducing construction waste and the duration of the works.
