§ 475-19. Street design.

A. 

Widths of rights-of-way pavements. Streets shall have the following widths: (When not indicated on the Master Plan or Official Map, the classification of streets shall be determined by the Planning Board.)

	Arterial	Collectors and Minor Streets	Outside Radius of Cul-de-Sac	Marginal Access
Minimum right-of-way (feet)	As determined by state or county road authorities	50	75	40
Minimum pavement (feet)	As determined by state or county road authorities	20	56	20

B. 

Improvements. Streets shall be graded and improved with pavements, sidewalks, storm drainage facilities, water mains, sewers, signs, streetlighting, street trees, and fire hydrants, except that the Planning Board may waive, subject to appropriate conditions, such improvements as it considers may be omitted without jeopardy to the public health, safety and general welfare. Pedestrian easements shall be improved as required by the Municipal Engineer. Such grading and improvements shall be approved, as to the design and specifications, by the Municipal Engineer.

(1) 

Fire hydrants. Installation of fire hydrants shall be in conformity with all municipal requirements and standard thread and nut dimensions as specified by the New York Fire Insurance Rating Organization and the Division of Fire Safety of the State of New York.

(2) 

Streetlighting facilities. Lighting facilities shall be in conformance with the lighting system of the municipality. Such lighting standards and fixtures shall be installed after approval by the appropriate energy company and authorized municipal inspector.

C. 

Utilities in streets. The Planning Board shall, wherever possible, require that underground utilities be placed in the street right-of-way between the paved roadway and street line to simplify location and repair of lines when they require attention. The subdivider shall install underground service connections to the property line of each lot within the subdivision for such required utilities before the street is paved.

D. 

Utility easements. Where topography is such as to make impractical the inclusion of utilities within the street rights-of-way, perpetual unobstructed easements at least 20 feet in width shall be otherwise provided with satisfactory access to the street. Wherever possible, easements shall be continuous from block to block and shall present as few irregularities as possible. Such easements shall be cleared and graded where required.

E. 

Grades. Grades of all streets shall conform in general to the terrain and shall not be less than 1/2% nor more than 6% for major or collector streets or 10% for minor streets in residential zones, but in no case more than 3% within 50 feet of any intersection.

F. 

Changes in grade. All changes in grade shall be connected by vertical curves of such length and radius as meet with the approval of the Municipal Engineer so that clear visibility shall be provided for a safe distance.

G. 

Curve radii at street intersections. All street right-of-way lines at intersections shall be rounded by curves of at least twenty-foot radius and curbs (if required) shall be adjusted accordingly.

H. 

Steep grades and curves; visibility of intersections. A combination of steep grades and curves shall be avoided. In order to provide visibility for traffic safety, that portion of any corner lot (whether at an intersection entirely within the subdivision or of a new street with an existing street) which is shown shaded on Sketch A shall be cleared of all growth (except isolated trees) and obstructions above the level three feet higher than the center line of the street. If directed, ground shall be excavated to achieve visibility.

I. 

Dead-end streets (culs-de-sac). Where dead-end streets are designed to be so permanently, they should, in general, not exceed 500 feet in length and shall terminate in a circular turnaround having a minimum outside right-of-way radius of 75 feet and pavement radius of 56 feet. At the end of temporary dead-end streets, a temporary turnaround shall be provided in accordance with municipal standard specifications.

J. 

Watercourses.

(1) 

Where a watercourse separates a proposed street from abutting property, provision shall be made for access to all lots by means of culverts or other structures of design approved by the Municipal Engineer.

(2) 

Where a subdivision is traversed by a watercourse, drainageway, channel or stream, there shall be provided a stormwater easement or drainage right-of-way as required by the Municipal Engineer, and in no case less than 20 feet in width.

K. 

Curve radii. In general, street lines within a block, deflecting from each other at any one point by more than 10°, shall be connected with a curve, the radius of which for the center line of the street shall not be less than 400 feet on major streets, 200 feet on collector streets and 100 feet on minor streets.

L. 

Service streets or loading space in commercial development. Paved rear service streets of not less than 20 feet in width or, in lieu thereof, adequate off-street loading space, suitably surfaced, shall be provided in connection with lots designed for commercial use.

M. 

Free flow of vehicular traffic abutting commercial developments. In front of areas zoned and designed for commercial use, or where a change of zoning to a zone which permits commercial use is contemplated, the street width shall be increased by such amount on each side as may be deemed necessary by the Planning Board to assure the free flow of through traffic without interference by parked or parking vehicles and to provide adequate and safe parking space for such commercial or business district.