In conformance with § 37 of the General
City Law and Section 5 of an ordinance of the City adopted on August
9, 1926, establishing the City Planning Commission, the Commission may modify the regulations of Chapter
300, Zoning, in order to allow for original design in subdivision development, whether the same is of residential development or otherwise.
Pursuant to § 33 of the General City
Law, the Commission may require the setting aside of land for a park
or parks suitably located for playground or other recreation purposes,
or such requirement may be waived subject to appropriate conditions.
[Amended 9-8-1975]
Approval of the final plat of the subdivision may be withheld by the Planning Commission or, in the event that approval is or has been given, building permits for construction within the subdivision may be withheld, unless the subdivider shall file with the City a surety bond executed by a surety company authorized to do business in the state, conditioned to secure the construction of the improvements required in §
260-11 in a satisfactory manner and within a time period specified by the City Planning Commission. Such period is not to exceed two years from the date of issue of the first building permit. No such bond shall be accepted unless it is enforceable by or payable to the City in a sum at least equal to 1 1/2 times the cost of constructing the improvements as estimated by the Director of Public Works in a form approved by the Corporation Counsel. In lieu of a bond, a cash deposit may be made with the City. In case of forfeiture, the City may proceed with the improvements utilizing any moneys realized as a result of the forfeiture.
The following standards shall guide the Director
of Public Works and the Commission in their determinations, but strict
application thereof may be waived by the Commission for good reason
shown.
A. Street right-of-way and pavement widths shall be as
follows:
|
Type of Street
|
Right-of-Way Width
(feet)
|
Pavement Width
(feet)
|
---|
|
Arterial
|
80
|
48
|
|
Collector
|
60
|
32
|
|
Minor
|
50
|
24
|
|
Marginal access
|
40
|
20
|
B. The arrangement, extent, width and grade and location
shall conform to the proposed development plan and official map.
C. Blocks.
(1) Block lengths shall be not over 1,600 feet nor less
than 400 feet.
(2) Widths shall be not less than 240 feet.
(3) Intersections with arterials shall be at least 1,000
feet apart.
D. Streets in subdivisions shall provide for continuation
of existing streets or conform to plans for adjacent areas where topographic
or other conditions make continuance impracticable.
E. Dead-end streets shall be not longer than 800 feet.
Turnarounds must have an outside roadway diameter of 120 feet. Dead-end
streets shall be graded to run to an intersection, or a utility easement
shall be provided.
F. Streets shall not intersect at less than 75º.
This requirement may be waived if divisional islands are provided
for traffic safety. Property lines shall be rounded by a radius of
10 feet or greater when deemed necessary. Curb radii at intersections
shall be not less than 20 feet.
G. Easements on rear lot lines shall be 12 feet wide.
Provisions shall also be made for drainage easements.
H. Vertical curves shall be not less than 200 feet in
length. Other grades shall be not less than 1/2% and not over 10%,
as follows:
|
Type of Street
|
Grade
(percent)
|
---|
|
Arterials
|
4
|
|
Collectors
|
6
|
|
Minor
|
8
|
|
Marginal access
|
8
|
I. Design shall be in conformance with Chapter
300, Zoning.
J. Minor streets shall be laid out so that through traffic
is discouraged.
K. Where the subdivision abuts an arterial street, marginal
access streets may be required.
L. Where the subdivision contains railroad rights-of-way,
parallel streets on either side may be required.
M. Reserve strips shall be prohibited except where controlled
by the City.
N. Tangents of 100 feet shall be required between reverse
curves.
O. Street jogs with center-line offsets of less than
125 feet shall be avoided.
P. Half streets shall be prohibited with some exceptions.
Q. Land subject to flooding shall not be platted for
residence.
R. Each lot shall have access to an existing or proposed
public street.
S. Double frontage and reverse lots shall be avoided.
T. All street line intersections shall be accurately
monumented with one-and-one-fourth-inch by three-foot iron stakes
by a licensed land surveyor, and a map of the same shall be filed
with Department of Public Works within 90 days of final approval of
the subdivision map.