The City adopts, by reference, the following minimum standards for public improvements constructed within the City’s jurisdictional area: The Iowa Statewide Urban Design and Specifications – current edition – (SUDAS) manuals shall be the adopted City Standard for Public Improvements. SUDAS shall be the minimum standards; due to unusual or extenuating circumstances, the City may require that projects conform to additional standards or to greater than minimum standards. A copy of the specifications shall remain on file at the office of the Clerk and shall be available for inspection and copying. All contractors and suppliers shall be charged with knowledge of its contents.