A case history on the adaptation of a road grading management system, Optigrade, is presented. The system, developed by the Forest Engineering Research Institute of Canada (FERIC), facilitate maintenance management by identifying those particular segments of a road needing grading. The system records road roughness, measured by an accelerometer mounted on a haul truck or utility vehicle, together with the vehicle's position, at 5-second intervals. The roughness-location data is subsequently analysed with the system's software to produce reports and maps of roughness and speed along the road, together with grading schedules indicating which segments of the road should be graded or otherwise maintained based on road roughness. The system was originally developed for long private forest haul roads with just a fews tributaries arranged in dentritic fashion but the authors have adapted it for use on large (circa 1200 km) grids of public roads. This application created many new challenges, which the paper describes. Solutions to the problems are presented