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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.
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Picture Gallery
M48 Severn Bridge
The ferry service between Aust and Beachley ran from 1926 until the late 1960s
Severn King ferry
Spinning the Cables
Wire unreeling equipment
The deck sections were floated into position, then lifted to their position supported by the main cable
View of bridge deck prior to surfacing and finishings
Cable Wrapping Machine
The Severn Bridge as it is today
M4 Second Severn Crossing
The construction site provided major facilities for pre-casting caisson, pier units and deck sections
37 hollow caissons were pre-cast on shore, floated out on a barge at high water, positioned by a floating crane then filled with concrete
Caisson in position with floating crane in background at low tide
The 2km long viaducts on both sides of the bridge were built progressively from each shore using a purpose made gantry
Launching gantry during viaduct construction
The main Shoots Bridge is a 947m long cable stayed structure with a composite deck supported by concrete pylons
Each viaduct pier and main bridge pylon is supported on a precast concrete foundation, most of which are seated directly onto the rocky sea bed
Pre-cast deck unit being positioned using the launching girder
