The 2020 interim contains updated information for the Standard Specifications for Structural Supports for Highway Signs, Luminaires, and Traffic Signals, 6th Edition.
AASHTO LTS-6-I3
Original price was: $160.00.$80.00Current price is: $80.00.
AASHTO 2020 Interim Revisions to Structural Supports for Highway Signs, Luminaires, and Traffic Signals, 6th Edition, 2020 Interim Revisions
American Association of State Highway and Transportation Officials , 2020