Forte and Tablada, Inc., as a subconsultant to Volkert Associates, was responsible for performing a complete topographic survey, establishing existing right-of-way for North line of I-10, Railroad and Almonaster, establishing elevations to develop a Digital Terrain Model with the widths matching the limits of the topographic survey, and providing a drainage map. The entire super and sub bridge structures were scanned to locate every pile. Bridge clearances were found, extracting two dimensional line work for the super structure. A horizontal plan of two dimensional site plan for bridge and a volume for counter weight were also created. As there was no access to the adjacent rail property, Advanced Measurements was able to use 3-D laser scanning to survey the area without permit or trespassing.