calhouncountyroads.com
Cost of Materials
Material cost increase from 1998 to 2007 12-yard truck74% ↑ Diesel fuel304% ↑ Gasoline313% ↑ Gravel20% ↑ Asphalt48% ↑ Guardrail/hardware113% ↑ Plow blades89% ↑ U-Channel sign post95% ↑ Traffic signal cable140% ↑ Source: Road Commission for Oakland Co. Maintenance cost increase