Clearing and grubbing shall conform to Form 814 and its successors.
Roadway excavation and formation of embankment shall conform
to Form 814 and its successors.
Trench excavation shall conform to Form 814 and its successors.
Preparation of subgrade shall conform to Form 814 and its successors.
No processed stone or bank-run gravel shall be placed on the prepared
subgrade until the First Selectman or his agent has approved the condition
of the subgrade.
Slopes shall conform to Form 814 and its successors. Earth slopes
shall be a minimum of 2:1 ratio and subject to inspection and approval
prior to placement of topsoil. Slopes shall be loamed to a minimum
depth of four inches, fertilized and seeded with a satisfactory grass
seed mixture and mulched.
For requirements regarding process stone/bank-run gravel, reference
the Town of Newtown Street Classification and Design Standards.
Gravel fill shall conform to Form 814 and its successors.
The wearing surface will be bituminous concrete pavement, constructed
in two courses to the thicknesses as indicated in the Town of Newtown
Street Classification and Design Standards. No surfacing shall be
installed until adequate compaction of the subbase and base course
has taken place. Where required by the Town Engineer, field density
tests of the subbase shall be performed at the subbase and shall be
performed at the owner's expense. These tests shall be done in
locations designated by the Town Engineer or First Selectman's
agent by a qualified testing laboratory or professional engineer.
The results of said tests shall indicate the percentage of maximum
dry density achieved and shall be based on modified Proctor density.
The first course of bituminous concrete pavement may not be placed
until approval has been received from the Town Engineer or First Selectman's
agent. In all cases, the first course of pavement shall weather at
least one full winter (November 1 through March 31) in place. The
final wearing surface shall be placed only at the discretion of the
Town Engineer or First Selectman's agent, only after all patches
and repairs have been made to the base course as directed. In no case
shall bituminous concrete be placed after November 1, unless specific
written approval has been granted by the Town Engineer or First Selectman's
agent.
A.
All drainage pipe shall be at least 15 inches in diameter, except
as noted below, and installed with a minimum cover of 30 inches. All
installation and construction shall be to the line and grade indicated
on the submitted drawings as required elsewhere herein, and in accord
with Form 814 and its successors.
B.
Class A concrete headwalls approved by Town Engineer shall be located
at culvert ends. The underdrain must be a minimum of six inches.
C.
Curb-type catch basins, various types of endwalls, CL-type catch
basins, manholes, wing-type endwalls and underdrains shall be constructed
according to the dimensions, methods and materials shown in detail
on Connecticut Department of Transportation Standard Sheets Numbers
228-A, 228-D, 228-C, 228-E, 223-A, 221-1, 221-F, 221-H, 217-B and
221-G. A copy of these Standard Sheets will be kept on file in the
Town Engineer's office and may be inspected during normal business
hours.
A.
Electric, telephone, and cable TV shall be placed between the edge
of pavement and the right-of-way line, placed in conduit with the
proper size being designated by each custodian of their service. The
location will be of mutual agreement between the assigned custodian
and the Town of Newtown, as the intent is not to interfere with future
drainage.
B.
Where sand backfill is required, it is necessary to tie into parallel
catch basins with perforated pipe and three-quarter-inch trap rock.
C.
Water.
(1)
Public or community water mains shall be laid in accordance with
specifications of the local water company, not conflicting herewith.
In no case shall any pavement of roadways be started until all water
mains and laterals are completed under affected portions of the roadway.
(2)
Hydrants shall be installed on all roadways where water is available
at such locations and in such number as the First Selectman directs.
The cost of provision and installation of hydrants shall be borne
by the owner.
D.
Sanitary sewers.
(1)
Materials. Gravity flow mains shall be constructed of PVC pipe per
specification ASTM D3032 or D3033, D3034, SDR35, ASTM F789 or equivalent
material as approved by the Town Engineer. Pressure mains shall be
constructed of mechanical joint cast pipe or equal material as approved
by the Town Engineer. Minimum pipe size shall be eight inches for
street sewers and six inches for laterals to buildings.
(2)
Location. Pipeline should lie at the center line of the road. Alternate
locations must have Town Engineer approval, prior to construction.
Depth of the pipe shall be below all other utilities, where possible.
Cover over the pipe will be a minimum of six feet.
(3)
Minimum grade. The pipe shall be laid at a grade which will ensure
self-cleaning. This grade shall be a minimum of 0.4%.
(4)
Manholes. Manholes shall be spaced at a distance no greater than
300 feet and at angle points, intersection and grade changes of pipe
or where pipe increases in size.
(5)
Drawings. In all cases proposed, sanitary sewer plans and profiles
shall be submitted to the Selectman or Commission on profile paper.
E.
Where utilities are installed, the owner shall bear the expense of
raising all manholes, valve boxes, etc., up to the final road grade.
These utility appurtenances shall be clearly visible and shall be
so set that a true line and grade is maintained.
F.
In all cases, the installation of all utilities within the right-of-way
shall be under the inspection of the First Selectman or his agent.
Water, electric and telephone lines shall be run to each and every
lot at the time of initial installation of the distribution main,
said service to extend to a minimum point 24 inches inside the lot
line, and shall be terminated with a valve and curb box; in the case
of water service, up to the finished grade of the lot.
G.
Before the construction of curbs is started, either all service lines
for underground utilities or conduits for underground utilities shall
have been installed to every lot in the proposed subdivision. The
intent of the above is to require that all underground construction
work under the area to be paved be finished prior to the first course
of paving.
Where bridges are to be built, they shall be designed satisfy
the requirements of H-20 wheel loading and the applicable section
of Form 814 and its successors. Drawings and design calculations shall
be submitted to the First Selectman and shall be certified by a professional
engineer, registered in the State of Connecticut.
Upon suspension or completion of any work under permit, the
owner shall remove from all public or private property all temporary
structures, tools and equipment, rubbish or waste materials resulting
from his operation. All ditches shall be filled and all sewers, drains,
catch basins, manholes cleaned and flushed. Streets, walks, curbs
and other structures shall be cleaned, repaired and the entire work
area left in a neat and clean condition.
A.
The owner/contractor shall establish and clearly mark, on site, the
center line of the proposed roadway. The stakes may be an offset from
the center line. The owner/contractor shall also indicate the location
of drainage easements in the same manner.
B.
Prior to subgrade inspection by the Town Engineer's office,
line and grade stakes shall be set not more than 50 feet apart, two
feet off the finished pavement (minimum). Stakes shall be set along
both edges of road by a licensed land surveyor. The stakes shall be
maintained until the street is accepted by the Town Engineer or the
First Selectman's agent.
C.
Two copies of all cut sheets shall be submitted to Town Engineer
or First Selectman's agent prior to the construction involved.
In case of conflict on any of the specifications contained herein,
the ruling of the First Selectman shall be deemed final.
When guide rails are required by the Town Engineer, they must
be in place before issuance of the first building permit for the lots
in an approved subdivision.
