Vandal Resistance of bridges

Posted on: 26 February 2020

Sadly some bridges suffer from vandalism. It is not as common as people believe. It takes many forms. Graffiti is the most common. There are paints from which graffiti can be wiped off.   Fire can be a local problem and once it starts it is hard to prevent repetition. We recommend the prevention of a build up of debris under the bridge. Not all fires are deliberate. Attempts to remove parts or even dismantle sections have been known but the use of anti-vandal fixings on sites with a known problem can manage this. We also combat this by recessing fixings in the deck and parapet whenever possible. We have to be careful that our efforts to make bridges vandal resistant don’t prevent inspection and maintenance. some bridges appear to be more vulnerable. Softwood obviously burns more easily. Suspension bridges can be wrecked if the cables are compromised. It is not always the “roughest” sites which suffer most. A couple of years a...

Kinghurst Bypass kerb saves the day during floods

Posted on: 21 February 2020

Historically when breaking waves deposited water on the promenade at Trearddur Bay in Anglesey the water ran down the road and flooded the town centre   Working the Atkins we developed a solution. By providing an exceptionally large road hump with a huge Kinghurst Bypass Kern along its edge. We tamed the beast. The water runs down the road and is stopped by the road hump. The camber guides the flood water to the Kinghurst. The Kinghurst collects it and channels it past the hump and sends it back onto the beach. The above image shows the unit performing perfectly in the recent Storm Denis            

Why use Cambered Bridges?

Posted on: 19 February 2020

Cambering bridges improves their appearance. By being less straight they fit better into rural environments where there are very few straight lines. The particularly attractive bridge above in Orston was supplied to a Local Community Group. They raised funds by selling a parapet spindle to each villager which had their names burned into them. The timber was Oak. Many Clients like the “feel” of oak. Designers love cambering bridges. It has no impact on the installation   Cambering bridges also makes them marginally stiffer. This is partly by stressing the steel and partly due to the virtual increase in the effective depth of the beams It can disguise differences in levels between banks. A lot of people find them more attractive The beams are rolled under immense pressure by specialists.  Sadly, the cost of transport and the rolling costs, when cambering bridges add a significant sum to the project cost. Beams can be formed f...