001.2023 *** STANDARD SPECIFICATIONS -- SERIES 2023 *** The Iowa Department of Transportation STANDARD SPECIFICATIONS FOR HIGHWAY AND BRIDGE CONSTRUCTION, SERIES 2023, plus applicable General Supplemental Specifications, Developmental Specifications, Supplemental Specifications AND Special Provisions shall apply to construction work on this contract. 500.01 *** WINTER WORK *** The free time allowed between November 15 and April 1 will not be permitted on this project. The Contractor shall work during the winter on all working days as defined in Article 1101.03 'Working Day'. DS-23052 DEVELOPMENTAL SPECIFICATIONS FOR PAVEMENT INTERLAYER GEOTEXTILE FOR PCC OVERLAYS GS-23003 GENERAL SUPPLEMENTAL SPECIFICATIONS FOR HIGHWAY AND BRIDGE CONSTRUCTION