§ 16.40.140.4.1. Streets.

A.

Conformance to plan. The arrangement, character, width, grade and location of all streets shall conform substantially with a plan for the most advantageous development of the entire neighboring area and shall be considered in relation to existing and planned streets, to topographical conditions, to public convenience and safety and in appropriate relation to the proposed uses of the land to be served by the streets. All streets shall be improved by the applicant with paving, curbs and gutters, and sidewalks when required. A minimum pavement width of 24 feet shall be required for all cul-de-sac and minor streets and 32 feet for all collector or commercial service streets. Where major streets are intersected by other streets, pavement widths shall be increased as specified by the engineering director. The following standards apply to streets unless a lesser standard is approved by vacation or other ordinance.

B.

Relationship of proposed streets to adjoining streets. The proposed street system shall be extended in alignment with the existing streets. Regardless of the width of the existing street, the width of proposed streets shall meet the requirements of this section.

C.

Extension of street dedication. When necessary, for the purposes of serving public access to provide for street access to adjoining property, the proposed street shall be extended by dedication to the boundary of such property.

D.

Street names. Proposed streets which are similar in alignment with existing and named streets shall bear the name of existing streets. Insofar as possible, any east-west oriented street shall bear the name or number of avenue, terrace or place, and any north-south oriented street shall bear the name or number of street, way or lane. Short cul-de-sac streets shall carry the designation of circle or court; those running basically north and south shall carry the designation of court and those running basically east and west shall be designated circles. Streets oriented diagonally from the north-south axis shall be designated as drives. In no case, except for numbered streets and avenues, shall the name of proposed streets duplicate or be phonetically similar to existing street names, regardless of their designation as street, avenue, drive, place or other designation.

E.

Rights-of-way widths. Street rights-of-way shall be not less than the following respective width when dedicated:

Minimum Right-of-Way Width Requirements for Major and Local Streets (in feet)
Facility Type	Functional Classification See Note 6	Future Lane Arrangement See Note 6	Total Required ROW Width (Rounded)
Urban	Arterial	Six-Lanes, Divided	120 ft.
		Four-Lanes, Divided	100 ft.
	Collector	Six-Lanes, Divided	120 ft.
		Four-Lanes, Divided or TWLT	100 ft.
		Four-Lanes, Undivided or One-Way	80 ft.
		Three-Lanes, Undivided or One-Way	80 ft.
		Two-Lanes, Divided or TWLT	80 ft.
		Two-Lanes, Undivided or One Way	60 ft.
Suburban	Arterial	Six-Lanes, Divided	200 ft.
		Four-Lanes, Divided	150 ft.
	Collector	Six-Lanes, Divided	200 ft.
		Four-Lanes, Divided	150 ft.
		Two-Lanes	95 ft.
Urban and Suburban	Commercial Service Street		60 ft.
	Local Street		50 ft.
	Local Street, Cul-de-sac		50 ft.
NOTES:
1. Urban facilities are located south of Gandy Boulevard. Suburban facilities include Gandy Boulevard and roads further north;
2. TWLT lane is a two-way left-turn lane;
3. FDOT's "District 1 ETDM Quick Start Handbook, Appendix A, Typical Roadway Sections" was the primary source for right-of-way widths;
4. Travel lanes on all major roads are required to be 12 feet wide;
5. Additional right-of-way width for parking, right turn lanes and dual or triple left turn lanes may be required;
6. The functional classification and future lane arrangement of the major streets shown on this table are required by the Future Major Streets Map (Map 20) and Future Land Arrangement Map (Map 21) of the Comprehensive Plan.

 

F.

Street pavement grade. Longitudinal pavement grades on all streets and roads shall be approved by the engineering director and shall not exceed six percent, nor be less than 0.2 percent when concrete curb and gutter are constructed, or less than 0.24 percent when concrete curb and gutter are not constructed. Cross slope, or crown, of streets shall be approved by the engineering director and shall not exceed one-half inch per foot nor be less than one-quarter inch per foot. All streets shall be graded in a manner and to a width deemed necessary by the engineering director. Finished grades, cross section and profile shall comply with City standards.

G.

Horizontal curves. Where a centerline deflection angle of more than ten degrees in the alignment of a street occurs, a curve of reasonably long radius shall be introduced. Local residential streets having a right angle change in alignment shall provide a minimum centerline right-of-way turning radius of 75 feet, unless a greater radius is deemed necessary.

H.

Vertical curves. If the engineering director determines the algebraic difference in gradient is a magnitude that would warrant the introduction of a vertical curve, the engineering director shall require that the vertical curve be introduced and shown in profile on the paving and drainage plan.

I.

Reverse curves. A centerline tangent length of at least 100 feet shall be provided between reverse curves on major streets.

J.

Intersections. Street intersections shall be designed and constructed as follows:

1.

Angle of intersections. Street intersections shall be as nearly as possible at right angles and no angle of intersection between streets or a street and an alley shall exceed 30 degrees from a right angle.

2.

Offsets at intersections. Street jogs with centerline offsets of less than 125 feet shall be prohibited. Major and collector street centerline offsets shall be prohibited.

3.

Visibility at intersections. That portion of property at street and alley intersections shall comply with the visibility at intersection requirements of this chapter.

4.

Limited access streets. Intersections with major streets shall be held to a minimum. All intersections with major streets shall be subject to approval by the POD, or Development Review Commission, or City Council.

5.

Corner radii. A minimum radius or diagonal cutoff of 25 feet shall be provided at the property lines of all intersections, unless such radii would be inconsistent with the existing platted pattern of the area and the additional area is not required for necessary street or intersection improvements. A greater radius or diagonal cutoff may be required at the intersection of any street with a major street. This radius may be provided by the dedication as a portion of the right-of-way.

6.

Major intersection right-of-way requirements. On any major street, within 150 feet of its intersection with another major street, the right-of-way and paving width shall be increased by ten feet on each side to permit proper intersection design. This additional right-of-way may be dedicated or deeded.

7.

Local street right-of-way requirements at intersections with major streets. Local streets shall be a minimum right-of-way width of 60 feet within 100 feet of the intersection with a major street. The additional right-of-way may be dedicated or deeded.

K.

Dead end streets and culs-de-sac. Dead-end streets other than cul-de-sac streets shall be prohibited, except where appropriate to permit future extension into adjoining unsubdivided tracts or lands that are anticipated for future redevelopment. When such streets are over 200 feet in length and immediate development of the adjacent property is not planned, a temporary turnaround shall be provided. When a street is designed as a cul-de-sac, having one end permanently closed, it shall terminate in a circular area of public right-of-way having a minimum property line radius of 40 feet with a minimum outside curb radius of 30 feet. A cul-de-sac street shall not exceed 500 feet in length except for finger island projections.

L.

Local street layout. Local streets shall be so arranged that high speed traffic shall be discouraged and the monotony of streets of undue length shall be eliminated. Energy conservation may also be considered in the review of the street layout and design.

M.

Residential development on major streets. Where a residential subdivision borders on or contains a major street, a marginal access street shall be required in order to limit access to the major street and provide safe access to the adjacent properties. Lots may be permitted to front directly on a major street only if an alley is provided to the rear of such lots and vehicular access to the front is prohibited, or lots are of sufficient width to permit an on-site vehicular turnaround area, in which case the requirements for an off-street vehicular turnaround shall be set forth by plat language on the final plat.

(Code 1992, § 16.40.140.4.1; Ord. No. 985-G, § 63, 7-15-2010; Ord. No. 1029-G, § 38, 9-8-2011; Ord. No. 81-H, § 7, 9-19-2013)