Discussion and Review of Tiffin Municipal Code Revisions – Preparation for Setting the Public Hearing — Tiffin City Code - DRAFT

CHAPTER 158 SUDAS Table 5C - 1.06 Minimum Criteria for Roadway Elements Cul-De-Sacs Industrial Collector Arterial Industrial Local Local Design Standards Design Standards Minimum right-of-way 100 ft. 80 ft. 66 ft. 66 ft. width(3) Minimum right-of-way Minimum lane width 12 ft. 12 ft. 12 ft. 12 ft. 67.5 ft. 75.0 ft. radius Auxiliary lane 12 ft. 12 ft. n/a n/a Minimum pavement Minimum bulb paving 36 ft. 36 ft. 31 ft. 34 ft. 50 ft. 59 ft. width(1)(4) radius Maximum grade 8% 10% 10% 8% Maximum grade 8% 8% Minimum grade 0.5% 0.5% 0.5% 0.5% Minimum grade 0.70% 0.70% Minimum pavement 1,000 150 Minimum stem to bulb 350 ft. 150 ft. 50 ft. 75 ft. curve radius(5) ft. ft. transition radius 4 ft. 4ft. paved paved Median width(7) 16 ft. 9 ft. 9 ft. grassed grassed Minimum pavement Minimum pavement 9 in. 8 in. 7 in. 8 in. 7 in. 8 in. thickness (P.C.C.)(2)(6) thickness (P.C.C.)(2) Minimum pavement Minimum pavement (2)(6) 10 in. 9 in. 8 in. 9 in. 8 in. 9 in. thickness (A.C.C.) thickness (A.C.C.)(2) (1) Including curb and gutter (2) May have additional granular subgrade requirements depending on existing soils and anticipated traffic conditions (3) Additional width is required for medians or boulevards if they are planned within the right-of-way. This additional right-of-way shall be dedicated to the City by the Developer. (4) A larger pavement width may be specified for roadways defined as Prescribed Roadways in the City Access Regulation Ordinance. (5) Under no circumstances will variances be granted for radii less than 75 feet. (6) Pavement thickness and subgrade requirements are intended as a guide. Street projects shall be designed on the basis of soil conditions and the projected traffic loadings. (7) Medians or boulevards which are included as a part of local or collector streets shall have a minimum width of four feet if paved of nine feet if grassed. Paved medians on local and collector streets are discouraged, unless desired by the City at intersections. Raised medians are not allowed. F. 5C-2 K. Add the following paragraph: “Variances to clear zone requirements will be considered for overhead electric facilities where compliance will significantly impact existing trees. In no case will a clear zone of less than 18-inches be allowed. A clear zone variance must be approved by the City CODE OF ORDINANCES, TIFFIN, IOWA - 1369 -