All public and private streets shall be designed and constructed so as to meet the following criteria:
(a) Right-of-way and pavement widths shall be as shown in the following table. Pavement widths shall be measured face to face of curbs.
Street Type | Minimum Right-of-Way | Minimum Pavement Width |
Arterial | 100 feet | 52 feet |
Major Collector | 80 feet | 36 feet |
Minor Collector | 66 feet | 36 feet |
Industrial | 80 feet | 36 feet |
Local | 54 feet | 30 feet |
Cul-de-sac | 50 feet | 26 feet |
Turnarounds on cul-de-sacs shall have a minimum 100' diameter right-of-way. If the turnaround includes a center island, a minimum 26' wide pavement shall be provided around the island.
(b) The typical sections contained in the appendix of these Subdivision Regulations shall be utilized.
(c) Pavement shall meet or exceed the following criteria (all reference numbers refer to City of Columbus Construction and Material Specifications dated October 1, 2002).
MINIMUM PAVEMENT COMPOSITION
AGGREGATE Base | CONCRETE Base | ||||||
3042 | 301 | 402 | 404 | 3053 | 402 | 404 | |
Cul-de-sac or Local Street (3) | 6" | 3" | 1 ½" | 1 ½" | 7" | 1 ½" | 1 ½" |
Collector Street (10) | 6" | 6" | 1 ½" | 1 ½" | 9" | 1 ½" | 1 ½" |
Collector or Arterial Street (20) | 6" | 6" | 1 ½" | 1 ½" | 9" | 1 ½" | 1 ½" |
Arterial or Industrial Street (75) | 6" | 6" | 1 ½" | 1 ½" | 9" | 1 ½" | 1 ½" |
Pavement subgrade compaction shall be in accordance with City of Columbus Item 204.
A prime coat (Item 408) (0.35 gallon per square yard) will be required between the 304 and bituminous course.
A tack coat (Item 407) (0.10 gallon per square yard) will be required between the 305 and 402 course.
Note: The number in parenthesis is the design traffic number and is the maximum number of 18,000 lbs. equivalent loads per day. When it is possible that this will be exceeded, the developer's engineer shall check with the Village Engineer about changing the design.
Legend
301 = Bituminous Aggregate Base
304 = Aggregate Base
305 = Plain Portland Cement Concrete Pavement (5 Bag)
402 = Asphalt Concrete
404 = Asphalt Concrete
407 = Tack Coat (RC-70 or RS-I)
408 = Prime Coat (RC-30, MC-70, RT-2, RS-1, RS-2)
(d) Curb and gutter with underdrains shall be constructed in accordance with Village standards. Curb drops at driveways and wheelchair ramps shall be constructed by sawcutting existing curb and gutter at the time of the driveway and sidewalk construction. Removal and repouring of curb and gutter at driveways and wheelchair ramps will not be permitted. A curb taper of 10 feet shall be provided at the end of any proposed curb.
(e) Subbase shall be free of topsoil, vegetation, soft clay or other objectionable material for a minimum depth of 2 feet below finished subgrade. The subbase shall be rolled, shaped and compacted to a minimum depth of 1 foot below subgrade and to a minimum width of 18 inches beyond the back of curbs. Compaction shall be not less than 100 percent of maximum dry density.
(f) The minimum radius at intersections measured at the face of curb shall be 25 feet for cul-de-sacs and local streets. 35 feet for collector streets, and 50 feet for arterial intersections.
(g) Horizontal and vertical alignment shall meet the following minimum standards:
Arterial | Major Collector | Minor Collector | Cul-de-Sac or Local | |
Centerline Radius | 1,050' | 650' | 400' | 200' |
Minimum Gradient | 0.5% | 0.5% | 0.5% | 0.5% |
Maximum Gradient | 6% | 6% | 7% | 8% |
Minimum Street Intersection | 900 | 900 | 900 | 800 |
(h) Clear sight distance (length along each approach leg) shall meet the following minimum requirements:
Design Speed (mph) | Minimum Sight Distance (feet) |
20 | 120 |
30 | 200 |
40 | 300 |
50 | 450 |
60 | 650 |
(i) Intersection centerline offsets shall meet the following minimum requirements:
A. Local/local 150 feet
B. Local/collector 200 feet
C. Local/arterial 300 feet
D. Collector/collector 300 feet
E. Collector/arterial 1,320 feet
F. Cul-de-sac/cul-de-sac 150 feet
G. Cul-de-sac/local 150 feet
H. Cul-de-sac/collector 200 feet
I. Cul-de-sac/arterial Not permitted
(j) Vertical curves shall be provided at any change of vertical grade where the algebraic difference on grades is 1.0 percent (1.0%) or greater unless otherwise directed by the Village Engineer. Sight distance shall be measured as the line of sight from a height of 0.5 feet to 3.75 feet above the pavement.
The following table shall be used as a guide for minimum lengths of vertical curves.
Algebraic Difference in % Grade | Length of Vertical Curve |
1.0 - 2.0 | 50' |
2.0 - 4.0 | 100' |
4.0 - 4.5 | 150' |
4.5 - 5.0 | 200' |
5.0 - 6.0 | 250' |
6.0 - 7.0 | 300' |
(k) The maximum profile grade approach to intersections shall be three percent (3%).
(l) Sidewalks and/or bike paths shall be installed on both sides of all streets. Sidewalks shall be constructed of Portland cement concrete and shall be located with the outside edge 12 inches inside the right-of-way. Sidewalk shall be minimum width as indicated below. The minimum thickness of sidewalks shall be 4 inches. At driveways, and other points of vehicle crossing, the thickness shall be 6 inches. Sidewalks shall extend to the curbs at all intersections and shall include wheelchair ramps.
Type of Street | Sidewalk Width |
Cul-de-Sac | 4 feet |
Local | 4 feet |
Minor Collector | 4 feet |
Major Collector | 6 feet |
Arterial | 8 feet |
Bike paths shall be installed to provide connections to all parks, schools, adjacent neighborhoods, commercial areas, existing bike paths, etc., as approved by the Planning and Zoning Commission. All bike paths shall be at least ten feet in width and shall be constructed of either Portland concrete or asphalt. In addition, building lines for single-family residential lots fronting or backing into a bike path the setback shall be at least 35 feet from the bike path. When bike paths are required along a side property line of a single-family lot, the house shall not be constructed within ten feet of the bike path easement, or the bike path itself, if not contained within an easement.
(m) Driveway aprons 6-inches thick shall be provided from the sidewalk to the curb at all driveway locations in accordance with the Village standard drawing. The maximum grade on driveways shall not exceed fourteen percent (14%) from the back of the sidewalk to the garage.
(Ord. 06-08. Passed 2-25-08.)