For the municipality of Nijmegen (Water Project Waalsprong) Martens produced and supplied, to GMB Civil BV, box culverts.
This box culvert consists of :
- 70 Culvert elements (2000 mm x 1250mm x 2000mm)
- 1 Weir (2250mm x 3750mm x 2500mm) including a pumping station and headwall.
