SR 202, Arizona Department of Transportation/DMJM

PEC provided topography, control and one (1) foot contour aerial mapping surveying services for thirty (30) miles of the State Route 202 Study and Design. Included establishing vertical control using Wild NA 2000 precision digital level with a data collector, and establishing and controlling three hundred twenty (320) horizontal and vertical panel points, section corners, quarter corners, and boundary ties. Six (6) Ashtech GPS receivers to produce ten (10) static GPS sessions. Three (3) Ashtech Z-12 GPS receivers were used to provide twenty-eight (28) kinematic GPS sessions and one (1) Airborne GPS session. Supplemental topography was also provided for this project.