Alignment Files: Contains alignments for Main Street and all sideroads associated with the project in both .alg and landxml format.  It also contains the waterline alignments in .alg format. Surface Files: Contains the Main Street surface as generated by Inroads “Roadway Designer” in .dtm and landxml format.  It also contains the sideroad surfaces generated from the cross sections in .dtm and landxml format. CAD Files: Below is a summary of what can be found in each file. Zb006drn.dgn – Drainage Zb006llp.dgn – Lighting and landscaping Zb006nu1.dgn – General Roadway, curb, sidewalk and alignments Zb006pro.dgn – Roadway profiles Zb006pvm.dgn – Pavment Markings Zb006row.dgn – Right-of-way Zb006sv.dgn – Land Survey Zb006uti.dgn – Water/Sewer Zb006utl.dgn – power/communications Zb006xs.dgn – cross sections