[Adopted STM 9-29-1988 by Ord. No. 49]
No road or street may be constructed without first obtaining
a permit from the Board of Selectmen as provided hereinafter.
The provisions hereof are applicable to the construction of
streets in an approved subdivision. Nothing herein shall be construed
to prohibit the development of private roads or streets in a subdivision,
if approved by the Planning and Zoning Commission in accordance with
its then-applicable subdivision regulations,[1] which private roads or streets are intended to remain
private and not accepted town roads or streets.
A.
Maps showing rights-of-way for streets and highways and rights-of-way
and easements for drainage shall be prepared in accordance with the
standards for a subdivision map specified by the Board of Selectmen.
Construction plans for streets, drainage and other improvements shall
be prepared in accordance with the standards for construction plans
specified by the Board of Selectmen, as the same may from time to
time be amended.
B.
Plans of improvements and profile maps shall be prepared on the same
size sheets and of the same scale and quality as used for the rights-of-way
maps and shall bear the seal of a professional civil engineer licensed
to practice in the State of Connecticut.
Application for a road construction permit shall be made, in
writing, to the Board of Selectmen and shall include the following
documents:
A.
Two copies of the maps showing the street rights-of-way and drainage
easements and two copies of the construction plans for street, drainage
and other related improvements. Plans and maps submitted to the Planning
and Zoning Commission as part of a subdivision application may be
substituted for the purpose of this requirement. Plans so submitted
to the Selectmen shall conform to a scale of one inch equals 40 feet
in the plan, with one inch equals four feet in profile, and shall
contain the following information:
(1)
The proposed road layout, showing the location and width of travel
pads, drainage structures, existing watercourses and rights-of-way
for drainage.
(2)
A profile of existing elevations over center lines of proposed roads
and overlines parallel to said center lines and 26 feet distant therefrom
on each side of said center lines. The profile shall also show the
proposed center-line grade of the road, the size, elevations and grade
of proposed culverts, stormwater sewers, underdrain pipes, catch basins,
manholes and header walls.
(3)
Cross sections, showing existing and proposed grades, at fifty-foot
stations and at any intermediate stations necessary to properly represent
the earthwork volume, with a scale of one inch equals 10 feet both
horizontal and vertical.
[Amended STM 2-13-1992 by Ord. No. 59]
B.
A fee of $100.
C.
In the event that such proposed construction is within or relates
to an existing town street, evidence of workers' compensation and
contractors' liability insurance in amounts and with carriers acceptable
to the Board of Selectmen, with the town named as an insured.
A road construction permit shall be issued, in writing, by the
Board of Selectmen, subject to:
A.
The completion of plans for the construction of streets, drainage
and other necessary plans requested and approved by the Board of Selectmen
and which also may be required to be approved by the Planning Commission.
B.
Payment to the Town of Barkhamsted of an inspection fee equal to
not less than 1% nor more than 3% of the construction cost of streets,
drainage and other improvements, based on cost estimates approved
by the Board of Selectmen. The minimum inspection fee shall be $100,
and otherwise the percentage for computation of the fee shall be determined
by the Board of Selectmen, taking into account the complexity of the
project, the construction schedule and the estimated personnel requirements.
C.
The filing of a performance guaranty in the amount specified by the
Board of Selectmen and in a form approved by the Town Counsel.
The road construction permit shall be valid for a period of
time that the Board of Selectmen deems necessary for the completion
of construction. Permits may be extended for a period not to exceed
one year upon written approval of the Board of Selectmen. Upon the
expiration of the extended time period, the Board shall either require
reapplication for the uncompleted work or pay for the completion of
the work by calling the performance guaranty.
The applicant shall execute an agreement and file a performance
guaranty with the Board of Selectman, said guaranty to be in an amount
and with surety and conditions satisfactory to the Board, securing
to the Town of Barkhamsted the actual construction, installation and
completion of all improvements to the satisfaction of the Planning
and Zoning Commission and the Board of Selectmen, including, without
limitation, streets, drainage and the placing of monuments, within
a period not to exceed two years from the filing of the guaranty.
Said guaranty shall be in a form and amount and with a surety acceptable
to the Board, the Planning and Zoning Commission and the Town Counsel.
Upon the completion of any road or drainage improvements, the applicant shall file with the Board of Selectman construction plans showing the streets, drainage and other subdivision improvements as built and also showing the location of any water mains, underground electric and telephone utilities. In lieu of such submission, the applicant's engineer may update and certify the Mylar construction plans submitted under § 166-5A of this article and approved by the Board of Selectmen. Such filing shall also include a certification, signed and sealed by an engineer licensed to practice in the State of Connecticut, that such engineer has inspected all construction work and that all improvements have been completed in accordance with the plans and specifications approved by the Board.
Before the release of the performance guaranty provided for in § 166-9 of these regulations:
A.
The streets, street improvements and street drainage shall be inspected
and approved by the Board of Selectmen or its agent.
B.
As-built plans shall have been filed with the Board pursuant to § 166-10 and approved by said Board.
C.
The applicant shall execute an agreement and file a maintenance performance
guaranty for the maintenance of streets, drainage and other improvements.
Said guaranty shall be in a form and amount and with a surety acceptable
to the Planning and Zoning Commission, the Board of Selectmen and
the Town Counsel. In the case of improvements which are not to be
offered for acceptance by the town, the maintenance guaranty must
be in effect for a period of one year from the release of the performance
guaranty. In the case of improvements which are to be offered for
acceptance by the town, the maintenance guaranty shall be in effect
for a period of 15 months from the release of the performance guaranty
or until acceptance of the improvements by the town, whichever period
is lesser.
A.
One year after the release of the performance guaranty, a petition
may be made, in writing, to the Board of Selectmen for the acceptance
of a street by the Town Meeting. Such petition shall be signed by
the owner(s) of the street and shall include the following:
(1)
A copy of a map, to be filed in the Town Clerk's office, showing
all street and drainage rights-of-way.
(2)
A Mylar tracing showing as-built street, drainage and other improvements,
certified by a professional civil engineer.
(3)
A warranty deed and a certificate of title for the rights-of-way
of the street and drainage structures and of any easements in support
thereof. The deed and certificate of title shall include:
B.
Upon receipt of the required documents, the Board shall refer said documents to the Planning and Zoning Commission for its review under C.G.S. § 8-24, as amended. The board shall then place the petition for acceptance on the call of the next regular Town Meeting; provided, however, that all requirements of this article and, if applicable, Chapter 170, Subdivision Regulations, have been fulfilled.
[Amended STM 2-13-1992 by Ord. No. 59]
A.
The manufacturers' and contractors' liability insurance specified under § 166-6C shall include public liability and property damage coverage, including blasting and under-ground damage resulting from the use of mechanical equipment, on work covered by this document, in reasonable amounts as specified by the Board of Selectmen.
B.
Coverage with respect to all subcontractors doing any part of the
work covered by the permit shall be required.
C.
If the policy is changed or canceled during the policy period, the
policy shall provide that written notice will be given to the First
Selectman of the Town of Barkhamsted at least 15 days before the effective
date of such change or cancellation period.
D.
The Town of Barkhamsted shall be named as an additional insured.
E.
The Board of Selectmen may request additional coverage.
[Amended STM 10-26-2005; STM 3-7-2012]
The following standards apply to the construction of Town roads:
A.
General requirements for Town road design.
(1)
Standards. The Town road shall be constructed in conformance with
the requirements and standards of the Town of Barkhamsted and the
Connecticut Department of Transportation Form 816-2004, or latest
versions.
(2)
All Town roads shall be curbless except where any of the following
conditions occur:
(a)
The proposed Town road intersects an existing Town road. Proposed
curbs shall be extended a minimum of 200 linear feet from said intersection.
(Note: The Board of Selectmen or its agents shall review each site
individually to determine need and/or length of curbing.)
(b)
The proposed Town road grade is 6% or greater.
(c)
At an inland wetlands or watercourse crossing to prevent direct
sediment deposition and roadway runoff of de-icing chemicals.
(3)
Supervision and inspection. Construction shall be subject to the
approval of and shall be carried out under the supervision of the
First Selectman or his/her authorized agent(s). No pipe, catch basin,
manhole, or structure shall be backfilled until inspected and approved
by the First Selectman or his/her authorized agent(s). The First Selectman
or his/her authorized agent(s) shall have free access to the construction
work at all times and shall be authorized to take material samples,
cores and other tests as deemed necessary to determine compliance
with these regulations. The First Selectman or his/her authorized
agent(s) may require the applicant, at his own expense, to have such
tests made and certified by a professional engineer licensed to practice
in the State of Connecticut.
B.
Right-of-way. Town roads shall have a width of 50 feet for the right-of-way.
C.
Turnaround.
(1)
A turnaround with a diameter of 100 feet for the right-of-way shall
be provided at the closed end of all dead-end Town roads.
(2)
For Town roads constructed after November 1, 2005. A reserved area
for snow deposition of 40 feet wide, 20 feet deep, on the turnaround
must be designated on the road plan. The location must be approved
by the First Selectman and be free of driveways, landscaping, mailboxes,
utility poles, hydrants, and other obstructions. The reserved area
must pitch towards the Town road at 2% to 4%. If there is a fifty-foot
right-of-way for future development on the road plan, the snow deposition
should be located within such right-of-way.
D.
Width of travel way.
(1)
Town roads shall be designed with the following width of pavement:
(a)
Town roads: 24 feet of pavement with eight-foot shoulders for
curbless roads and 24 feet of pavement, measured between curbs, with
six-foot shoulders for curbed roads in both cut and fill areas, constructed
and centered between the limits of the fifty-foot right-of-way. (Note:
Road width shall be 24 feet if the proposed Town road is greater than
1,500 linear feet. Road width shall be 22 feet if the proposed Town
road length is 1,500 linear feet or less, and it is not feasible or
viable that the proposed Town road will be extended in the future.)
(b)
Turnarounds shall be a minimum of 90 feet in diameter.
(2)
A greater width and cross section of pavement may be required to
accommodate the amount and type of traffic, and turning movements
to be generated by the intended use of the lots. Alternative designs
for turnarounds (e.g., depressed vegetated island with drainage) compatible
with site conditions which will minimize environmental impact while
providing a functional and maintainable turnaround may be proposed,
subject to review and approval by the Board of Selectmen and the Planning
and Zoning Commission.
F.
Vertical curvature. Appropriate vertical curves for transition, including
superelevated curves meeting acceptable engineering standards, shall
be established on all Town roads and at Town road intersections to
ensure adequate sight distance in accordance with the classification
of the Town road. Except at intersections, vertical curves shall provide
a minimum sight distance of 200 feet along the edge of the pavement.
Where any Town road approaches an intersection at a grade of 4% or
more, a transition area having a maximum grade of 2% shall be provided
for a minimum of 50 feet measured from the right-of-way line of the
Town road intersection.
G.
Horizontal alignment.
(1)
Connecting curves between tangents shall be provided for all deflection
angles in excess of 5°. Suitable tangents shall be provided between
curves, and the minimum radius of curvature at the center line of
Town roads shall be as follows:
(2)
Tangents between curves shall not be less than 100 feet in length.
H.
Intersections.
(1)
New Town road intersections.
(a)
New Town road intersections shall be at least 200 feet from
any existing intersection or other proposed intersection or shall
be part of an existing or proposed intersection.
(b)
Minimum stopping sight distances shall be 200 feet in each direction
from the proposed intersection.
(c)
Minimum intersection sight distances shall be 350 feet and shall
be established by current accepted engineering standards. Greater
distances may be required by the Board of Selectmen.
(2)
Town roads shall intersect at ninety-degree angles where feasible.
Where unusual topographic conditions warrant, the Board of Selectmen
may, through written approval, allow modification to this standard.
(3)
Intersections of right-of-way lines shall be connected with a curve
having a radius of 35 feet. Edges of pavement at intersections shall
be connected with a radius of 25 feet.
I.
Cross sections. Local Town roads and collector Town roads shall be
designed with a cross section in accordance with the drawing entitled
"Curbless Roadway Cross Section, Town of Barkhamsted" and/or "Curbed
Roadway Cross Section, Town of Barkhamsted," which drawings are hereby
made a part of this ordinance.[1]
[1]
Editor's Note: Said drawings are included at the end of this
chapter.
[Amended STM 3-7-2012]
Town roads shall be constructed in accordance with the following
standards and procedures:
A.
The Town road shall be constructed in conformance with the requirements
and standards of the Town of Barkhamsted.
B.
Survey and field layout. Instrument surveys shall be made, maintained
and recorded as follows:
(1)
A center-line survey of the Town road shall run in the field and
suitable construction ties established to all control points. Stations
shall be established at all control points. Stations shall be established
at fifty-foot intervals and at all points of curvature and points
of tangency. The beginning of this line shall be designated as Station
0 + 00 and shall be the intersection point of the proposed center
line with the center line of the connecting Town road. Offset hubs
shall be provided as part of the center-line survey.
(2)
A construction stake shall be placed perpendicular to the tangent
or radial, in the case of curves, at each station on both sides of
the Town road and clear of all construction. The construction stake
shall be marked with the station, offset to center line and cut or
filled to provide the grade as measured from the top of the stake.
(3)
A stake sheet showing stations, profile grade, stake offsets and
grade cuts and grade fills shall be prepared and presented to the
Board of Selectmen before construction starts.
(4)
Permanent bench marks shall be established and recorded with the
Board of Selectmen throughout the length of the project at one-thousand-foot
intervals or as directed by the Board. The datum for bench marks shall
be Town, state or United States datum. An assumed datum may be used
only with permission, in writing, from the Board.
(5)
Grade stakes shall be protected and preserved until the Board of
Selectmen or its agent(s) approves the construction work.
C.
Clearing and grubbing. The entire area of the right-of-way required
to be graded in accordance with the standard cross section shall be
cleared of trees, stumps, brush, roots, large rocks, ledge and other
unsuitable materials, except that the trees suitable for Town road
trees shall be left standing as directed by the Board of Selectmen.
All felled trees, stumps, brush, and roots shall be removed from the
site.
D.
Preparation of subgrade. The subgrade shall be prepared as follows:
(1)
All trees and roots shall be stripped to below the base course of
the pavement and for the full width of the pavement. All soft spots,
peat, loam, organic material, spongy soil, boulders, ledge and other
unsuitable material conforming to State of Connecticut Department
of Transportation Standard Specifications for Roads, Bridges, and
Incidental Construction Form 816-2004, as amended, hereinafter referred
to as "Form 816-2004, Section M.02, as amended." Where ledge rock
is encountered, it shall be removed to a depth of 24 inches below
the subgrade and the area backfilled with gravel.
(2)
Embankments shall be constructed of suitable fill material deposited
in successive layers not exceeding 12 inches in depth after compaction.
Embankments to an elevation of three feet above the free water surface
at the time of filling shall be constructed of rock and/or free draining
material conforming to Form 816-2004, Section M.02.07, as amended.
No stone over five inches in its greatest dimension shall be placed
within 12 inches of the elevation of the subgrade.
(3)
The subgrade shall be shaped with road motor graders or alternate
as approved by the Town Engineer. Vibratory compactors shall be used
and compacted to 95% as per the Standard Proctor Test. The subgrade
shall be brought to surface uniform with and shall not vary more than
1/2 inch from the required cross section.
(4)
Where rock fill is used, fill shall be installed in lifts no greater
than three feet to the desired depth.
(5)
The Board of Selectmen may require the installation of underdrains
beneath the Town road pavement or in the right-of-way where necessary
to protect the stability of the pavement.
E.
Subbase course. The subbase course shall be constructed as follows:
F.
Base course. The base course shall be constructed as follows:
(1)
The road base shall consist of six inches minimum of approved processed
gravel or processed stone placed in one layer and compacted to 95%
as per the Standard Proctor Test.
(2)
The final surface shall not be more than 3/8 inch from the established
grade and standard cross section.
(3)
The base course shall not be constructed during freezing weather
or on a wet or frozen subbase.
G.
Surface course. On the prepared and approved base course, there shall
be constructed a two-course surface of bituminous concrete, a two-inch
Class 1 bituminous binder course and a 1.5 inch Class 2 bituminous
surface course. Construction methods and materials shall conform to
Form 816-2004, entire Section M.04 and Section 4.01 or as amended,
Bituminous Concrete. The surface course shall be installed when the
temperature is greater than 40° F. and rising, except that it
shall be installed only between April and October 1, unless written
permission is obtained from the Board of Selectmen and unless a period
of at least 60 days has elapsed with the drainage subgrade, subbase,
and base course in place where deemed necessary.
H.
Curbs. Where bituminous curbing is required on all roads unless otherwise
directed by the Selectmen, the paved portion of the road shall be
increased to 24 feet in width unless it is 1,500 linear feet or less
in which case it shall be increased to 26 feet in width in order to
receive the bituminous curbing. Curbs shall be "Connecticut Cape Cod"
type machined-formed, having a cross section approved by the Board
of Selectmen, a height of 4 5/8 inches and base width of 12 1/2
inches. The curb material method of construction shall conform to
Form 816-2004, Section M.04 and Section 8.15 or as amended. Where
driveways exist or are planned, depressed curbing must be installed.
The surface of the pavement where the curbing is to be contacted shall
be cleared of all loose and foreign material, shall be dry and shall
be coated with an R.C.-2 or other bitumen just before placing the
material. The material shall be properly compacted to the required
cross section by use of a suitable machine specifically designed for
the purpose. After completion of the curbing, traffic shall be kept
at a safe distance for a period of not less than 24 hours and until
the curbing has set sufficiently to prevent injury to the work. The
requirements of C.G.S § 7-118a shall be complied with wherever
applicable. See drawing entitled, "Curbed Roadway Cross Section, Town
of Barkhamsted," which drawing is hereby made a part of this ordinance.[1]
[1]
Editor's Note: Said drawing is included at the end of this chapter.
I.
Slopes: restoration and sight distance.
(1)
Curbless road slopes. All roads shall be graded to a total width
of 40 feet. Road cross slopes shall be minus 0.04 foot per linear
foot to form a crown; the eight-foot shoulder cross slope shall be
minus 0.08 foot per linear foot, allowing the shoulder to drain away
from the road to low impact development drainage best management practices
(BMPs). Road embankments are to be sloped in this manner: cut areas
not less than one on two (slope vertical or horizontal); fill areas
four feet or less in depth, one on four, and four feet or more in
depth, one on two.
(2)
Curbed Town road slopes. All roads shall be graded to a total width
of 36 feet. Town road cross slopes shall be minus 0.04 foot per foot
to form a crown; the six-foot shoulder cross slope shall be plus 0.08
foot per linear foot, allowing the shoulder to drain to the Town road.
Town road embankments are to be sloped in this manner: cut areas not
less than one on two (slope vertical on horizontal); fill areas four
feet or less in depth, one on four, and four feet or more in depth,
one on two.
(3)
Restoration. All earth slopes and areas of distributed soil shall
be loamed with six-inch minimum depth after compaction to prevent
settlement behind curbing, seeded and hay mulched. The areas to be
seeded shall be made viable and receptive. The entire seeded area
shall be given a complete cover of hay mulch. All areas and spots
that do not show prompt catch shall be reseeded at ten-day intervals
until growth of grass is established over the entire area.
(4)
The Board of Selectmen may require the removal or lowering of embankments
adjacent to Town road intersections in order to assure adequate sight
distance at the intersection. No cut or fill sections beyond the right-of-way
shall extend into property outside of subdivision or property not
owned by the applicant, unless appropriate slope rights are obtained
for the Town.
J.
Guiderails or single posts. Guiderails or single posts shall be installed
along all Town roads where there will be an embankment, which has
a depth of four feet or more occurring within 20 feet of the proposed
pavement. Posts shall conform to Form 816-2004, Section M.10, as amended,
and shall be installed in accordance with Form 816-2004, Section 9.01,
as amended, spaced 10 feet on center with a minimum tip diameter of
six inches and a minimum length of six feet six inches and a maximum
length of six feet eight inches.
K.
Site cleanup. All large rocks, boulders, felled trees, stumps, brush
or other debris shall be removed from the Town road right-of-way and
shall be deposited and properly disposed of under the supervision
of the Selectmen.
[Amended STM 2-13-1992 by Ord. No. 59; STM 3-7-2012]
Storm drainage for Town roads shall be planned and designed in accordance with the standards of Article VII of Chapter 170, the Town of Barkhamsted Subdivision Regulations, and the following specific standards and requirements:
A.
General. Sufficient pipe shall be installed to carry existing watercourses
in the Town road right-of-way and to drain both the proposed Town
road or Town roads and extensions thereof or other Town roads which,
based on topography, will be served by the same drainage system. For
curbed roads, no open ditches or channels shall be provided in the
Town road right-of-way unless sufficient additional right-of-way in
excess of the minimum standard width is provided so as to maintain
the standard cross section and proper provision is made for protective
guideposts or rails. Town road drainage systems shall take into account
the effects upon downstream systems, shall be coordinated with general
drainage requirements for the use and development of the abutting
land and shall provide for the following:
(1)
The use, protection and improvement, if needed, of the natural drainage
system.
(2)
The interception of channel drainage coming from any adjoining property
or Town road.
(3)
The protection of locations, both in use or proposed, necessary for
on-site sewage disposal and water supply facilities.
(4)
The prevention of flooding and soil erosion.
B.
Runoff calculations. (See Article VII of Chapter 170, Town of Barkhamsted, Subdivision Regulations.) The method of determining runoff shall be as specified in Article VII of Chapter 170, Town of Barkhamsted, Subdivision Regulations. The implementation of low-impact development techniques and best management practices (BMPs) shall be utilized where feasible and appropriate for the specific site conditions. The applicant's consultant shall provide the Commission with drainage computations to determine the adequacy of stormwater systems, including the spacing of catch basins and the need for double basins in roadway sags.
C.
The design of storm drainage best management practices (i.e., drainage
swales, infiltration swales, etc.) shall be designed as per the 2000
Connecticut Department of Transportation Drainage Manual and the 2004
Department of Environmental Protection Stormwater Quality Manual,
both as amended.
D.
Pipe design. The minimum size of stormwater pipe shall be 15 inches
in diameter. Coefficients used in the design for reinforced concrete
pipe (RCP) or alternate material shall be N = 0.015, smooth wall HDPE
N=0.012, and for asphalt-covered corrugated metal pipe, N = 0.021.
The minimum slope of pipes shall be 0.5%. Pipe size and slope shall
be such that the head on the invert shall be contained without damage
to any adjacent property. Pipe, except for underdrains, shall be laid
on straight alignments, both horizontally and vertically, with catch
basins or manholes spaced no more than 300 feet apart, providing access
at all deflection points or at the junction of two or more lines.
The open end cover over the top of the pipe shall be 24 inches. Culverts
under Town roads shall extend to the edge of the right-of-way.
E.
Discharge.
(1)
The discharge of all stormwater that has been collected or otherwise
artificially channeled shall be into suitable natural streams, wetlands
or into Town or state drainage systems with adequate capacity to carry
the discharge. Otherwise, there shall be no discharge onto or over
private property within or adjoining the Town road unless proper easements
and discharge rights have been secured by the applicant, such easements
and rights are transferable to the Town and there will be adequate
safeguards against soil erosion and flood danger.
(2)
Easements shall be at least 30 feet in width, offset no less than
10 feet and no more than 20 feet, respectively, from the storm drain
and extended to a suitable existing storm drain or an adequate natural
watercourse or wetland. Greater easement width may be required for
drainage swales or unusual site conditions. No stormwater shall be
diverted from one watershed to another. Discharge shall be made in
a manner that protects streams, ponds, and wetlands from pollution.
(3)
The 2000 Connecticut Department of Transportation Drainage Manual
and the 2004 Department of Environmental Protection Stormwater Quality
Manual, both as amended, shall be utilized within the storm drainage
design.
[Amended STM 3-7-2012]
Storm drainage shall be constructed in accordance with the following
standards:
A.
Pipe. All storm drainage pipes within paved road areas shall be Class
4 reinforced concrete pipe (RCP) or alternate material unit and shall
conform to the requirements of Form 816-2004, Section 6.51, as amended.
The minimum cover over all storm drainage within the paved road areas
shall be three feet. Where water is encountered in the pipe trenches
or where the Selectmen shall direct, underdrains shall be either slotted
RCP, or perforated PVC SDR35 pipe, or smooth wall HDPE and shall conform
to the requirements of Form 816-2004, Section 7.51, as amended. In
general, underdrain shall be installed on the uphill side of the road.
Reinforced concrete pipe (RCP), Class IV, shall normally be specified
for storm drainage systems, except when fill heights require Class
V.
B.
Methods. Storm drainage pipe shall be laid in accordance with Section
6.51.03 of the Connecticut Department of Transportation Form 816-2004.
(1)
Prior to laying pipe, the trench shall be excavated to the required
depth, the bottom of which shall be graded to afford a uniformly firm
bearing for the pipe throughout its length. Where rock is encountered,
it shall be excavated to not less than 12 inches below the bottom
of the trench, and this depth shall be refilled with crushed stone
and thoroughly tamped and shaped. Where the nature of the foundation
material is poor, it shall be removed and backfilled with gravel or
crushed stone approved by the Board of Selectmen or its agents.
(2)
All pipe shall be carefully laid, true to the lines and grades given,
hubs upgrade and with the ends fully entered into adjacent hubs.
(3)
Line and grade stakes shall be set by a Connecticut licensed land
surveyor or professional engineer and shall be maintained in good
order until the work has been inspected and approved by the Board
of Selectmen. A pipe laser level shall be required when laying pipe.
(4)
In sandy, silty, or other soil in which there is a danger of washing
or cave-ins, the joints of concrete pipe shall be thoroughly wetted
and caulked.
(5)
All metal pipes shall be carefully joined and firmly clamped together
by approved connecting bands, which shall be properly bolted in place
before any backfill is placed.
(6)
Backfill underdrain shall be three-eighths-inch or one-half-inch
broken stone (Form 816-2004, Section M.01.01, as amended) to proposed
grade. See cross section in accordance with the drawing entitled "Curbless
Roadway Cross Section, Town of Barkhamsted" and/or "Curbed Roadway
Cross Section, Town of Barkhamsted," which drawings are hereby made
a part of this ordinance.[1]
[1]
Editor's Note: Said drawings are included at the end of this
chapter.
(7)
Riprap conforming to the requirements of Form 816-2004, Sections
7.03 and M.12.02-03, as amended, shall be placed at inlets, outlets
and in channel beds at bends or curves as required to prevent scouring,
erosion and/or siltation of streams and culverts. Computations as
per the 2000 Connecticut Department of Transportation Drainage Manual
as amended shall be submitted for type and sizing of riprap outfalls.
(8)
The inlets and outlets of all exposed drainage culverts shall be
protected by concrete flared ends, concrete or mortared stone headwalls,
endwalls and where necessary, appurtenant wingwalls. All endwalls
shall conform to the requirements set forth in Form 816-2004, Section
5.06, as amended. (Note: The Board of Selectmen or its agent(s) may
require guiderails.)
(9)
Catch basins, manholes, drop inlets, endwalls and other related drainage
structures shall be constructed in accordance with Form 816-2004,
Section 5.07, as amended.
A.
Street signs. Street name signs shall be installed at all street
intersections in locations approved by the Board of Selectmen. Such
signs shall be of a design and material approved by the Board of Selectmen.
B.
Monuments and pins.
(1)
Monuments shall be provided on both street right-of-way lines at
the beginning and termination of each street and at each deflection
or tangent point in between. Monuments shall be made of prestressed
concrete or granite and shall be not less than five inches square
by 42 inches in length with a suitably marked top. Each monument shall
be set in place, after all street construction is complete, with the
marked point set on the point of reference and shall be installed
in a manner conforming to the standards of the Connecticut Association
of Land Surveyors.
(2)
In addition to required monuments, iron pins not less than 3/4 inch
in diameter and 36 inches in length consisting of a suitable rod or
pipe shall be placed at each point of intersection of a lot line and
the right-of-way line of a street and at all other lot corners and
shall be installed in a manner conforming to the standards of the
Connecticut Association of Land Surveyors. Monuments may be substituted
for iron pins. Pins, however, are not required at each change in direction
of an irregular lot line, such as along a stream or stone wall.
Electric and telephone lines and facilities in new streets shall
be installed underground unless the Commission has determined that
such underground installation is, in whole or in part, inappropriate
or infeasible. Where possible, such lines and facilities shall not
be located under the street pavement; however, any necessary crossing
under the pavement, if allowed, must be done before the formation
of the subgrade is completed. The lines and facilities shall be installed
after the street right-of-way has been graded but prior to installation
of the base course for the street pavement.
