Any person, firm or corporation desiring to
lay out and construct any proposed new street, highway or public way
in the Town of Ridgefield shall first submit a plan for the proposed
facility to the Planning and Zoning Commission for approval as prescribed
in C.G.S. § 8-24. This plan shall conform to the standards
set forth in the subdivision regulations of the Town of Ridgefield.
[Amended 3-10-1993]
Before any work is commenced on a proposed roadway, including clearing of the site, the owner shall apply for and have issued a roadway construction permit from the Director of Public Services. Said permit shall not be issued unless the applicant has complied with the bond and surety requirements of §
310-55 of this article. In addition, the Director may revoke any such permit subsequent to issuance in the event said applicant should at any point cease to be in compliance with said section, whether noncompliance is occasioned by acts or omissions of the applicant or otherwise. The Director will supply an application form which must be completed and returned to the Director together with one set of roadway construction plans and the required fee (as the same may be from time to time established by the Director of Public Services) prior to the issuance of the permit and start of construction.
All proposed Town roads shall be designated
into one of the following classifications by the Planning and Zoning
Commission prior to final approval:
A. Arterials (major): generally carry traffic between
communities or major activity centers.
B. Collectors: provide intracommunity traffic service
and neighborhood access to arterials.
C. Local streets: link individual properties with collectors
and arterials and include the following:
(1) Local street: a through road linking properties with
collectors and arterial roads and serving an unlimited number of residential
and nonresidential properties.
(2) Tertiary road: a permanent dead-end road (cul-de-sac)
serving not more than seven interior residential lots.
Storm drainage shall be provided and designed
in accordance with the following standards:
A. Pipe. Sufficient pipe shall be installed within the
subdivision to carry existing watercourses and to drain the proposed
roads and/or easements which may reasonably be expected to be constructed
at some future date on adjoining property which normally drains across
the area of the proposed subdivision or which, in the opinion of the
Town Engineer, would be the most practical course for such drainage.
If in his judgment there will be no substantial danger from soil erosion
or danger to the public health and safety, the Town Engineer may permit
the discharge of rivers and large streams in their natural courses
and may permit the discharge of stormwater and established watercourses
in open ditches across proposed lots of one acre or larger. All pipe
shall be of such diameter (not less than 15 inches) as will, in the
judgment of the Town Engineer, be sufficient to properly carry stormwater
expected to enter the pipe from the proposed subdivision and from
other properties when developed which normally drain across the area
of the proposed subdivision. The minimum slope for the fifteen-inch
pipe shall be 0.75%. The intent of this subsection is that pipes shall
be installed the full length in all proposed roads to permit the connection
of house storm drains and cellar drains where required by ground conditions.
B. Manholes. Manholes shall be provided at each change
in direction or grade of the pipe and shall not be spaced more than
400 feet apart. Manholes shall be constructed as shown on the standard
detail. Only precast concrete units or solid concrete blocks shall
be used.
C. Catch basins.
(1) Catch basins shall be provided in order that surface
water will not travel without interception more than as shown in the
following schedule of grades and distances:
|
0.50% to 1%
|
250 feet
|
|
1% to 2%
|
300 feet
|
|
2% to 5%
|
350 feet
|
|
5% to 8%
|
300 feet
|
|
8% to 10%
|
250 feet
|
(2) Each catch basin shall be connected to a manhole or
adjacent catch basin where no manhole exists. Construction shall conform
to the standard detail. Only precast concrete units or solid concrete
blocks shall be used.
D. Underdrains. In all roadway areas where a high water
table is found to exist, either before commencing or during actual
construction of the roadways, the developer shall be required to install
underdrains as directed by the Town Engineer or his duly authorized
agent to protect the stability of the roadway.
(1) If required, perforated concrete or metal pipe shall
be used, backfilled with washed gravel or crushed rock of 1/2 inch
nominal size to a depth of at least 12 inches over the top of the
pipe. The remainder of the trench shall be backfilled with bank-run
gravel as approved by the Engineer.
(2) Sufficient pitch shall be provided to allow this underground
water to run freely to a point of discharge. The size and type of
conduit shall be as directed by the Engineer.
E. Discharge. This discharge of all stormwater shall
be into suitable drainage structures of watercourses. Where the discharge
shall be onto private property within or adjoining the proposed subdivision,
proper easements and discharge rights for the Town shall be secured
by the applicant before approval of the final map and acceptance of
the drainage plan by the Planning and Zoning Commission.
The storm drainage system shall be constructed
in accordance with the following standards and procedures:
A. Pipe. All pipe used shall be of reinforced concrete
meeting State Highway Department specifications. In some instances,
the Town Engineer may recommend use of corrugated metal pipe where
in his judgment such pipe will provide a more satisfactory drainage
system.
B. Joints. The joints of all pipes shall be shoved tight.
Pipe laid in sandy, silty, or other soil where, in the judgment of
the Town Engineer, there is the possibility of silting shall have
joints thoroughly sealed with a 1:3 Portland cement mortar or other
approved method.
C. Catch basins and manholes. Catch basins and manholes
shall be constructed in accordance with the approved plans. Manholes
shall be constructed of solid concrete radial manhole blocks eight
inches thick, and catch basins shall be constructed of eight-inch
solid concrete blocks. Precast concrete units are acceptable.
D. Headwalls, culverts and bridges. Headwalls, culverts
and bridges shall be constructed where required, in accordance with
good engineering practice and as specified by the Town Engineer.
E. Cement block construction will not be permitted.
F. Open ditches. Open ditches may be permitted at the
discretion of the Town Engineer. The size of the waterway shall be
of sufficient size to convey all water expected to be discharged and
shall be suitably stabilized against erosion. The side banks shall
be moderately sloped, not less than three horizontal to one vertical,
and then seeded or otherwise stabilized. Paved bottom sections and
rip-rap slopes shall be provided when directed by the Town Engineer
to prevent scour and erosion.
Where driveways have been constructed prior
to the petition for acceptance, said driveways shall be constructed
in accordance with the Ridgefield Driveway Ordinance.
Street signs shall be required at all intersections.
To ensure uniformity, the developer shall pay to the municipality
a fee as may be required by the Director of Public Services for each
required sign, and his responsibility under this provision shall end
upon payment of this sum to the Board of Selectmen.
When homes within a subdivision are occupied
prior to acceptance of the street, it shall be the responsibility
of the developer to erect mailboxes where said street intersects the
nearest public highway. The mailboxes shall be erected as directed
by the postmaster and they shall be maintained in good order until
the street is accepted as a public highway. The developer shall remove
the same when postal service is supplied to the individual home. On
a cul-de-sac, all mailboxes shall be placed in a cluster, the location
of which shall be determined by the Director of Public Services.
When in the opinion of the Town Engineer guardrailing
is necessary to protect the traveling public, the subdivider shall
install the same as directed. The guardrailing shall consist of the
two-cable variety, or approved equal, and shall conform to the applicable
State Highway Department specification.
[Amended 3-28-1990; 9-26-1990; 6-26-2002]
A. Bond or other security required. Prior to the start
of any work activity, a performance bond, passbook, acceptable surety,
irrevocable letter of credit, certificate of deposit or cash shall
be deposited with the Director of Public Services to guarantee the
satisfactory performance of the work as shown in the plans, as modified
in the field by the Town Engineer.
(1) The size of the bond or other security shall be determined
by the Town Engineer and shall represent his estimate of the cost
of the proposed improvements.
(2) Twenty percent of the total security pledged must be in cash, which cash portion shall be the final 20% to be released as later set forth in Subsection
B. The Director of Public Services reserves the final right to determine the adequacy of the form of bond or security, and the criteria for adequacy shall include, but not necessarily be limited to, the duration of the security and the Town's ability to draw on the security without third party consent. The Director of Public Services will also be bound by any reasonable rules and regulations promulgated by the Board of Selectmen as a result of changes and modifications to accepted banking and surety practices.
B. Release of bond or other security. When the drainage
and asphalt binder have been completed and so certified by the Town
Engineer, and the fire suppression cistern tank and hydrant system
is in place and in working order and has been tested and certified
by the Fire Chief, the bond or other security will be reduced by 50%.
(1) When the final wearing surface has been installed
(including curbs) and when the shoulders have been properly graded
and stabilized, there will be an additional thirty-percent reduction
in the bond or other security.
(2) The remaining 20% of the original bond or other security
(the mandated cash portion thereof) shall be released when the road
has been accepted as a public highway and when all required instruments
of conveyance have been properly executed and placed on the land records.
(3) All persons requesting release of bond or other security
shall do so by written request to the Director of Public Services.
C. Waiver. In the event of an unanticipated, accidental
failure of a bank or other security, due to no intentional fault of
the developer, the Board of Selectmen may authorize work or completion
of the improvements in question upon terms and conditions it deems
in the best interest of the municipality.