I need precast concrete solutions for bridges between 5 and 10 m span

[CarlosGarcia]

I would like to know some precast concrete systems for bridges between 5 and 10m span. Here in Spain we are very use to work with precast abutments plus precast beams, but I am looking for a global system for these small bridges (It means only one piece) Do you have some idea???
Thank you
Carlos

 

[zliazmei]

For spans less than 10m you may use single slab with voids.
for 10m the depth of the structure will be less than 1m.
Note: 1m using British Design Loads

 

[bridgebuster]

In the US, Conspan and Oldecastle Precast Concrete have precast systems in this span range. You can find them on the web. Sorry, I don't recall the URL.