Dry Support Bridge (DSB) by WFEL

Companies & Organizations:

United Kingdom of Great Britain and Northern Ireland

Sir Richard Fairey Road, Heaton Chapel
Stockport Cheshire SK4 5DY

The Dry Support Bridge (DSB) is the new generation of tactical military bridging. Deployable by just eight soldiers and a single launch vehicle, the DSB can get traffic moving over a 46 metre gap in less than 90 minutes. Its primary mission is to support the momentum of attack. Its secondary mission is emplacement on main supply routes to the rear of the combat zone to help keep military and civilian traffic flowing. The DSB is made from a specially manufactured lightweight aluminium alloy under licence to WFEL.



The DSB’s military load classification (MLC) of 120 at 46 metres and width of 4.3 metres makes it one of the most advanced tactical bridging systems ever designed. Covering wet or dry gaps up to 46 metres, the DSB offers incredible operational flexibility and has already proven itself in the field following deployment in the USA, Germany, South Korea and during Operation Iraqi Freedom. Over the next 10 years in excess of 100 DSB systems will have been fielded.



Development and testing


In the late 1990s, the U.S Department of Defense identified a requirement for a new generation of tactical bridging systems that were rapidly deployable, versatile, modular, reliable and user-friendly. Following the most high profile procurement contest in military bridging history, WFEL was awarded a production order for the design of what was to become the DSB. Bearing the hallmarks of WFEL’s near century long history of engineering excellence, early testing showed that the DSB was surpassing all the operational demands placed upon it including 18,000 simulated crossings without a single failure.



Maximum clear gap  46m


Span Range Up to 46m in 6m increments


Military Load Classification Normal 80 (T)/96 (W) at 46m Maximum 120 (W) at 46m


Road Width 4.3m


Bank Heights +/- 3m at 40m


Longitudinal bank slope 1 in 20 (reduced capacity at 1 in 10


Lateral bank slope 1 in 20


Build Crew 8


Launch Time Less than 90 minutes


Launch vehicle Stowed (LWH): 12m x 2.98m x 3.985m Weight: 39,000kg


Parallel Module Stowed (LWH): 5.95m x 2.44m x 1.1m Deployed (LWH): 5.95m x 4.3m x 1.19m Weight: 4,417kg


Ramp Module Stowed (LWH): 5.95m x 2.44m x 1.1m Deployed (LWH): 5.96m x 4.3m x 1.19m Weight: 4,080kg


End beam (LWH): 2.5m x 0.375m x 0.56m Weight: 357kg


Approach ramp (LWH): 4.09m x 0.42m x 0.19m Weight: 86kg


Decking and kerbs Integral, part of bridging sections


Vehicles and trailers for 40m bridge Launch vehicle with trailer & 2 support vehicles with trailers


Vehicles and trailers for 40m bridge  

(U.S Army specification with added vehicles with trailers capability to build two smaller bridges) Launch vehicle with trailer & 3 support



Vehicles and trailers for 46m bridge

Launch vehicle with trailer & 3 support vehicles with trailers



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Defense Products & Services: Dry Support Bridge (DSB) by WFEL
Companies & Organizations: 
Defense Products & Services Sectors: Bridges, girder, tactical
Description: Dry Support Bridge (DSB) by WFEL
Source of Information: WFEL Ltd
Defense Product & Services: Dry Support Bridge (DSB) by WFEL
Companies & Organizations WFEL Ltd