Regardless of size and with the ability to both pretension and post tension Preco can adapt to your project requirements. Having manufactured rail bridge girders up to 76 tonne Preco can service most bridge configurations. The team at Preco were involved with the first supertee bridges in New Zealand and have completed many double hollowcore bridges over their time in the industry. The ability to produce larger bridge beams onsite also gives the contractor an added advantage when road transport becomes difficult.