No road, drainage structure, bridge, sidewalk or appurtenance to any the foregoing items shall be constructed by any person other than the Town of Newtown except in accordance with the terms of this chapter and after obtaining the permit required by §
185-41.
Roads shall have a minimum grade of 1% with a maximum grade
of 10%. Upon the written recommendation of the Engineer, when special
circumstances require, the Board of Selectmen may modify the maximum
grade in order to better conform with existing natural ground slopes.
Roads shall have a cross slope of 3/8 inch per foot each side
of the center line, except on curves where the design bank shall be
as suggested by the Town Engineer or First Selectman's agent.
Where appropriate to the description of materials, methods of
construction or design, the State of Connecticut, Department of Transportation,
Standard Specifications for Roads, Bridges and Incidental Construction
Form 814, 1989, hereinafter referred to as "Form 814," are hereby
incorporated by reference, except where inconsistent with the terms
of this chapter, and its successor, in which event this chapter shall
govern. A copy of Form 814 and its successor shall be available for
inspection in the office of the First Selectman during business hours.
All thicknesses required by this chapter are compacted thicknesses.
Curbs shall be installed on both sides of the road on the first
course of pavement prior to placing the second course of pavement.
The final curb height shall be six inches.
All proposed streets shall be designated as major collector,
minor collector or local residential by the Commission, upon recommendation
of the Town Engineer, prior to granting of the road permit and, where
applicable, approving the final subdivision plan. Standards are set
forth herein for all such streets.
A. Major collector street.
(1) The proposed street is a direct and logical continuation of the state
and local arterial highway system that carries or can be expected
to carry a heavy volume of traffic.
(2) The proposed street may also provide a shorter or more convenient
through route, so that it can be reasonably expected to collect traffic
from other streets.
(3) The proposed street is the particular collector of vehicles from
150 or more potential or existing homes in the area.
(4) The proposed street could logically be expected to become a major
street because of proposed development or other foreseeable circumstances.
B. Minor collector streets.
(1) The proposed street is in an area zoned for business or industry
or is near the dividing line between a residential and business industrial
area so that it may reasonably be expected to carry a substantial
volume of commercial or industrial traffic.
(2) The proposed street is the particular collector of vehicles from
75 to 150 potential or existing homes in the area.
(3) The proposed street creates a shorter or more-convenient route between
a commercial or industrial area or the area containing 75 or more
homes and a major traffic artery.
(4) The proposed street for any other reason may reasonably be expected
to carry a substantial volume of traffic.
C. Local residential streets. The proposed street will serve only the
residential subdivision in which it is laid out and is not reasonably
expected to become a major or minor collector street.
D. After classification by the Commission, each street shall have the
design and shall be built to the specifications set forth in the Table
of Street Classification and Design Standards found herein and made
a part hereof. Said standards are on file in the Town offices.
Sidewalks shall be constructed on both sides or either side
of all streets where specified by the Board of Selectmen and/or the
Commission as needed for the public health and safety.
All streets shall be developed to their full width in accordance
with the set of plans designated "Typical Street Cross Sections, Town
of Newtown." Copies of said plans are on file in the office of the
Town Engineer and may be obtained during normal business hours.
The following reference manuals shall govern as the Town's
specifications where this regulation is silent:
A. State of Connecticut Department of Transportation Standard Specifications
for Roads, Bridges and Incidental Construction - Form 814, 1989 (as
amended).
B. State of Connecticut Guidelines for Soil Erosion and Sediment Control
(1985, as amended).
C. Connecticut Department of Transportation Drainage Manual (1973, as
amended).
D. A Policy on Geometric Design of Rural Highways, AASHO (1965, as amended).