16.28.110: CURBS, GUTTERS AND SIDEWALKS:
A.   Curb, Gutter And Sidewalk: New curb, gutter and sidewalk shall be constructed at the expense of the developer with and at the same time as all new construction or modification of existing buildings in accordance with city standards on all streets, within and adjacent to the development, and in all zoning districts for all land uses.
B.   Deferment: The administrator may defer the construction of required curb, gutter and/or sidewalk until other curb, gutter and/or sidewalk is constructed adjacent to other lands in the neighborhood under any one or more of the following conditions:
   1.   If existing curb, gutter and/or sidewalk are in good repair and to an acceptable line and grade which conforms to the line and grade of other curb, gutter and/or sidewalk in the standard block, it may be retained.
   2.   Curb, gutter and sidewalk shall not be required or allowed to be constructed or may be deferred if, in the opinion of the city engineer, the improvement would create a traffic hazard or an unusual drainage problem.
C.   Construction Standards For Vertical And Rolled Curb: Both vertical and rolled curb shall be allowed in the city, in accordance with the provisions of this code and in conformance with the standard construction design and specifications for the same, as are on file in the city engineer's office. The most recent construction design and specifications shall prevail.
Standard detail C-2 (6 inch rolled curb) shall be used only when the following applicable conditions have been met:
   1.   On local residential streets in new developments, when the top of curb to top of curb street drainage capacity is not exceeded by the peak flow generated during a 50-year, 24-hour storm. It shall be the developer's engineering consultant's responsibility to compile and submit drainage calculations to the city for review and approval.
   2.   On residential cul-de-sac streets in new developments which meet the drainage requirements.
   3.   On local residential streets in existing developments where no curb or gutter exists in the block under consideration and a study by the administrator indicates that the proposed installation will meet the drainage requirements.
   4.   In all cases six inch (6") rolled curb shall be transitioned into six inch (6") vertical curb around all curb returns. (Ord. 994 §2, 2006)