Specifications include, but are not limited to: 1.2 Sign Group 1.2.1 Group A sign panels will be fabricated with 0.080 inch thick aluminum substrate. Exceptions are bid items (Exit Gore Signs), which will be fabricated from a single sheet of 0.125 inch thick aluminum substrate. 1.2.2 Group A sign panels may include Mounting Bar as shown on Std Dwg SN 8. 1.3 Sign panels, materials, and installation shall conform to UDOT 2017 Standard and Supplemental Specifications for Road and Bridge Construction, particularly sections 02890, 02891, 05120, 02721, and 03055, and the 2017 Standard and Supplemental Drawings, particularly the SN Series. Furnish and install sign panels and sign panel overlays. Furnish and install posts and bases. This work includes excavation, foundations, grading, and other work. Remove, dispose of, and obliterate existing sign installations as specified by UDOT. All retroreflective sheeting meets or exceeds the minimum requirements of ASTM Type XI, except for Adopt-a-Highway Signs and Plaques, Sponsor-a-Highway Signs, and Memorial Signs as noted in 2.18. Furnish and Install Barrier Mounted Sign Bases as shown in SN Standard Drawing Series. Furnish and Install Surface Mounted Sign Bases as shown in SN Standard Drawing Series. Furnish and Install Ground Mounted Sign Bases and foundations as shown in SN Standard Drawing Series.