In the outback of British Columbia we have a lot of Forestry Road Bridges. Sometimes they are concrete reinforced panels. These panels have galvanized rods sticking out each side. To maximize driving surface (width) the holding blocks, riser blocks and curbs are mounted in a pattern on the outside edge of the panels. We pre-drill all the components of the curb system so that the installation on site goes faster. It all starts with a good drawing and plan! The seven P’s are Proper Prior Planning Prevents Piss Poor Performance!