The 2004 SDDOT Standard Specifications for Roads and Bridges is the most current edition. The 2004 edition will continue to be used for all lettings prior to September 2, 2015.
All projects let September 2, 2015 and after will use the 2015 SDDOT Standard Specifications for Roads and Bridges. Please visit the 2015 Standard Specifications page for more information and details. An order form for the 2015 edition and additional files will be added to the page as the files are available.