2019 Design Standards Amendments

Table 5C-1.06 Minimum Criteria for Roadway Elements Design Standard Arterial Collector Local Industrial Cul-de-sacs Minimum right-of- 100’ 80’ 66’ 66’ Design Standard Local Industrial way width (3) Minimum lane width 12’ 12’ 12’ 12’ Minimum right-of- 67.5’ 75.0’ way radius Auxiliary Lane 12’ 12’ N/A N/A Minimum pavement 36’ 36’ 31’ 34’ Minimum Bulb 50’ 59’ width (1)(4) Paving 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’ 350’ 150’ 150’ Minimum stem to 50’ 75' curve radius (5) bulb transition radius Median Width 16’ 4’ Paved 4’ Paved (7) 9’ Grass 9’ Grass Minimum pavement 9” 8” 7” 8” Minimum 7” 8” thickness (P.C.C.) pavement (2) (6) thickness (P.C.C.)(2) Minimum pavement 10” 9” 8” 9” Minimum 8” 9” thickness (A.C.C.) pavement (2) (6) 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 of Tiffin 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 4-feet if paved of 9-feet if grassed. Paved medians on local and collector streets are discouraged, unless desired by the City at intersections. Raised medians are not allowed. 5L-3 C. 3. Add the following paragraphs Access spacing shall be regulated by the City of Tiffin in the following manner: A. Minor Arterial Roadways The minimum distance between the centerlines of roadway access points shall be 300-feet. Driveways to individual lots abutting arterial roadways are prohibited unless the driveway provides access to/from a commercial or multi-family residential area with 18 or more dwelling units. A driveway access to these areas must be warranted by a traffic study and have concurrence by the Jurisdictional Engineer. B. Collector Roadway The minimum distance between centerlines of roadway access points shall be 125-feet. A maximum distance of 450-feet shall also be applied. A single driveway access will be allowed for each lot abutting a collector roadway. In the case of a corner lot, the driveway access must be to/from the street with the lower classification. One additional driveway access may be permitted if all of the following criteria are met. 1. The frontage length is greater than 150-feet. 11