(A) Construction. Specifications shall be in keeping with the current standards on file with the City of Crawfordsville, and shall describe the requirements for proper installation of the project to achieve its intended purpose.
(B) Street drainage. Street drainage shall be divided to drain on both sides of the street, and shall comply with the city’s approved standard details, as adopted by the Board of Public Works.
(C) Materials.
(1) Storm sewers. Pipes shall comply with the city’s approved standard detail. End treatments shall be slope walls or reinforced concrete.
(2) Open channels. Materials acceptable for use as channel lining are grass, revetment rip-rap, concrete, hand-laid rip-rap, pre-cast cement concrete rip-rap, grouted rip-rap, and gabions. Lining materials shall receive specific approval of the City Engineer. Materials shall comply with the latest edition of INDOT’‘s Standard Specifications.
(D) Special hydraulic structures. Special hydraulic structures, including junction chambers, drop manholes, inverted siphons, stilling basins, energy dissipation structures, and the like shall be used only if they match one of the city’s approved standard details or if approved by the City Engineer.
(Ord. 2-2010, passed 3-8-10)