C405 Paving & Concrete Curb Policies-C406DA
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1)General
A)The work subject to the requirements of this policy shall include the
production, hauling/delivery, excavation for, placing, installation, jointing,
curing, finishing, and other work necessary to prepare foundations and soil
subgrades, install aggregate bases and install concrete curbing within property
within the corporate limits of the City of Carmel and existing or proposed
right-of-way.
B)This policy shall be the basis for acceptance of the work by the City. Failure to
adhere to the requirements of this policy may result in non-acceptance of the
work or other remedies outlined in this policy.
C)Workmanship, materials and quality of the work completed shall conform to the
2006 Standard Specifications of the Indiana Department of Transportation
(hereinafter referred to as Standard Specifications), except where deviations are
allowed or specified herein, or variances are granted.
D)Where the minimum standards of any other governmental agency having
concurrent jurisdiction exceed these standards, the higher standards shall apply.
E)If any plan or other note or specification on the approved construction
documents exceeds the minimum standards of this policy, the higher standards
shall apply.
F)Nothing contained herein shall be construed as prohibiting the design and
construction of improvements meeting higher standards, nor as discouraging
petitions to appropriate governing bodies for variances for alternatives which
can be supported by advances in technology and are approved by other agencies
with concurrent jurisdiction.
G)All work shall comply with the requirements of Section 105.03 of the
Standard Specifications.
H)For the proposes of this policy, where the term Engineer is used in this
policy and the Standard Specifications, it shall mean:
i) The Carmel City Engineer, staff of the Department of Engineering, other
personnel employed by the City of Carmel, or authorized agent(s) that may
be retained to represent the City of Carmel.
ii) The Hamilton County Highway Engineer, staff of the Hamilton County
Highway Department, other personnel employed by Hamilton County, or
authorized agent(s) that may be retained to represent Hamilton County
Highway, depending on the location of the work.
I)Authority of the Engineer over the work shall be per Section 105.01 of the
Standard Specifications.
J)Prior to commencing the work, the Contractor performing the work shall contact
the Engineer to schedule a pre-construction meeting to review the Engineer's
construction requirements, staff notification requirements, required inspections
for certain stages of the work and to review the authority of the Engineer as it
relates to the work.
K)Under no circumstances shall work subject to the standards established by
this policy commence without obtaining approved construction drawings by the
City of Carmel Department of Engineering.
L)At the sole discretion of the Engineer, the portions of this policy related to
inspections and testing of work subject to the requirements of this policy outside
of the right-of-way shall be determined at the pre-construction meeting.
M)Dimensional and other standards for concrete curb shall be in accordance
with the City of Carmel Standard Details.
N)Under no circumstances shall material other than Portland Cement meeting
the standards established by this policy be utilized to construct concrete curbs
within the corporate limits of the City of Carmel.
O)Under no circumstances shall extrude type curb be installed with the
corporate limits of the City of Carmel.
2)Foundation
A)General
i) This work shall consist of the construction/preparation of the
foundation in accordance with Section 105.03 of the Standard
Specificaitons.
ii) The foundation shall be prepared in accordance with Section 605.03(a) of
the Standard Specifications and the requirements of this policy.
B)Excavation and Embankment
i) Prior to beginning excavation and embankment operations, all
necessary clearing, grubbing, scalping and topsoil stripping and
subsequent backfilling for removed items within the slope stake limits
shall be performed in accordance with Section 201.03 and 201.04 of the
Standard Specifications. All topsoil, vegetation, roots, stumps, friable
and deleterious material shall be completely removed within the limits
of the slope stakes.
ii) Excavations
(1) After excavation operations, all spongy and yielding material that
does not readily compact shall be removed from within the slope stake limits and
the resulting void shall be refilled with suitable material and compacted in
accordance with Section 203 of the Standard Specifications.
(2) Any pronounced depressions within the slope stake limits resulting after
excavation operations shall be refilled with suitable material and compacted in
accordance with Section 203 of the Standard Specifications.
iii) Embankments
(1)Embankments shall be constructed in accordance with Section 203 of the
Standard Specifications.
(2) All spongy and yielding material that does not readily compact shall be
removed from within the slope stake limits prior to embankment
operations.
(3) Any pronounced depressions within the slope Stake limits resulting after
clearing, grubbing, scalping and topsoil removal shall be refilled with
suitable material and compacted in accordance with Section 203 of the
Standard Specifications prior to embankment operations.
(4) Prior to the construction of any embankment, the original ground surface
within the limits of the slope stakes shall be leveled and the upper 6-inches
shall be compacted in accordance with Section 203 of the Standard
Specifications.
(5) Embankments shall be shaped to be well drained and shall be protected to
prevent erosion.
(6) Loose depth of each embankment lift, final compacted depth, compaction
method and compaction requirements shall be in accordance with Section
203 of the Standard Specifications.
C)Soil Subgrades
i) Subgrades shall be installed on foundations constructed in accordance with
Section 2(A) and Section 2(B) of this policy and only after the installation
of all utilities and subsurface drains indicated on the approved construction
documents to be located under the pavement are completed. Trench
backfilling work of these installations shall be in accordance with the City
of Carmel Trench Backfilling specifications.
ii) The subgrade shall be shaped to the required grade and sections, free
from all ruts, corrugations, or other irregularities.
iii) The subgrade shall be uniformly prepared, compacted and approved in
accordance with Sections 207.02, 207.03 and 207.04 of the Standard
specifications.
iv) Subgrades shall be inspected and approved by the Engineer before any
aggregate base or concrete curbs are constructed. A proof roll shall be
conducted in accordance with Section 203.26 of the Standard
Specifications. Unacceptable areas shall be corrected to the satisfaction of
the Engineer before the placement of any Aggregate Base or concrete
curbing.
v) At the discretion of the Engineer, Subgrade that has satisfactorily passed
a proof roll, but remains uncovered for a period of 14 calendar days prior to
placing Aggregate Base or concrete curbing or is subject to a measurable
rain event prior to placing Aggregate Base or concrete curbing, shall be
subject to additional proof rolls prior to placement of the Aggregate Base
or concrete curbing.
3)Aggregate Bases
A) General
i) This work shall consist of placing a compacted Aggregate Base on a
prepared soil subgrade in accordance with Section 105.03 of the Standard
Specifications.
ii) Aggregate Base materials shall be in accordance with Section 301.02 of the
Standards Specifications.
iii) The Aggregate Base material shall be obtained from a Certified Aggregate
Producer in accordance with Section 917 of the Standard Specifications.
iv) The Aggregate Base material shall be handled and transported to, and
on, the work site in a manner that minimizes segregation and moisture loss.
v) Aggregate Bases shall be constructed on approved soil subgrades and to
thicknesses equal or greater than those indicated on the approved
construction documents.
B) Temperature and Seasonal Limitations
i) The Aggregate Base shall be placed in accordance with the temperature
limitations of Section 301.04 of the Standard Specifications.
ii) Frozen material shall not be placed.
iii) Aggregate Bases must be placed and pass proof roll prior to November 30
in order to allow paving in accordance with Section 4C(iv) of this policy.
C)Preparation
i) The prepared soil subgrade shall be free from objectionable or foreign
materials at the time of placement.
ii) The subgrade shall be subject to additional proof rolls in accordance with
Section 203.26 of the Standard Specifications just prior to placing the
Aggregate Base on the subgrade in accordance with Section 2C(v) of this
policy. Unacceptable areas shall be corrected to the satisfaction of the
Engineer before any Aggregate Base is placed.
D) Spreading and Finishing
i) The Aggregate Base shall be spread in accordance with Section 301.05 of
the Standard Specifications.
ii) The Aggregate Base shall be compacted in accordance with Section
301.06 of the Standard Specifications.
iii) Concrete curb shall be placed over the Aggregate Base within 14 calendar
days. Aggregate Bases that lay exposed for a period of time greater than 14
calendar days or experience a measurable rain event prior to the placement
of concrete curb shall be subject to inspection and acceptance by the
Engineer. At the discretion of the Engineer, additional proof rolls may be
required.
4) Concrete Curb
A)General
i) This work shall consist of placing concrete curbing on prepared soil
subgrades or Aggregate Bases in accordance with Section 105.03 of the
Standard Specifications.
ii) Concrete curb shall be constructed on prepared soil subgrades of
Aggregate Bases to the dimensional standards of the applicable City of
Carmel Standard Details or in accordance with the curbing details of the
approved construction documents.
iii) Materials used in the production of the concrete for the curbing shall be in
accordance with Section 605.02 of the Standard Specifications. High early
strength admixtures may be utilized but shall not be considered in waiving
any requirements of this policy.
iv) Equipment utilized for concrete curbing installation work, including but
not limited to production, hauling/delivery, placing, installation, jointing,
curing, finishing and miscellaneous/ancillary activity shall be in accordance
with Section 508 of the Standard Specifications.
v) Concrete production, mixing and hauling/delivery shall be in accordance
with Section 502.10 of the Standard Specifications.
vi) Installation of the concrete curbing indicated on the approved construction
documents shall be completed in the same paving season.
B)Preparation
i) The soil subgrade or Aggregate Base shall be subject to additional proof
rolls in accordance with Section 203.26 of the Standard Specifications just
prior to placing the HMA courses in accordance with Section 2C(v) and
3D(iii) of this policy. Unacceptable areas shall be corrected to the
satisfaction of the Engineer before placement of any concrete curbing.
ii) All displacement or rutting of the soil subgrade or Aggregate Base shall be
repaired prior to placing concrete curbing.
C)Weather and Seasonal Limitations
i) Concrete curbing shall only be placed in accordance with Section 502.11
of the Standard Specifications. There shall be no provision for installation
below the temperatures specified.
ii) No mixture shall be placed on a frozen subgrade or Aggregate Base.
iii) Under no circumstances shall concrete curb be placed between December
15 and March 30.
iv) If a soil subgrade or Aggregate Base over which concrete curb is to place,
is placed and approved by the City prior to November 30, placement of the
concrete curb will be allowed up to December 15, provided that the
ambient and soil subgrade or Aggregate Base surface temperature complies
with the requirements of Section 4C(i) of this policy and the paving
contractor pay for the services of a full time construction inspector and who
shall act as an authorized agent of the Engineer. The Engineer shall select
the construction inspector.
v) If the ambient and soil subgrade or Aggregate Base surface temperature
complies with the requirements of Section 4C(i) of this policy between
April 1 and April 15, concrete curb shall be allowed to be placed on an
approved soil subgrade or Aggregate Base provided that the paving
contractor pay for the services of a full time construction inspector and who
shall act as an authorized agent of the Engineer. The Engineer shall select
the construction inspector.
vi) The Engineer reserves the right to suspend all concrete curb placement
operations if, in the opinion of the Engineer, that prevailing weather
conditions and/or the condition of the Subgrade and/or the Aggregate Base
may result in substandard concrete curb placement, curing and finishing.
D)Placement
i) Concrete curb shall be placed in accordance with Section 502.09, 502.12
and 605.04(c) and 605.04(d) of the Standard Specifications.
ii) Curb machines may be utilized in accordance with Section 605.04(h) of the
Standard Specifications provided that the equipment conforms to the
requirements of Section 508 of the Standard Specifications.
iii) Formwork shall comply with the requirements of Section 605.04(b) of the
Standard Specifications.
iv) Forms shall be removed in accordance with Section 502.16 and
605.04(b) of the Standard Specifications.
E)Joints
i) Joints shall conform to the requirements of Section 503 and 605.04(e) of
the Standard Specifications.
ii) Joints shall be installed at intervals of 10-feet or less; 5-foot or less along
radii. Joints in integral curb and sidewalks shall be located at the same
location as the joints in the adjoining sidewalk. Joints may be sawed or
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iii) Preformed expansion joints shall be placed at intervals of 50-feet or less,
at all castings, the beginning and end of all curb returns, the end of each
days work and where abutting existing construction. In addition to these
requirements, expansion joints in integral curb and sidewalks shall be
located at the same location as the expansion joints in the adjoining
sidewalk.
A)Finishing and Curing
i) The concrete curb shall be finished and cured in accordance with Section
502.14, 502.15, 504 and 605.04(f) of the Standard Specifications.
ii) Curing compound shall be applied to all exposed surfaces on slip-formed
concrete curb. For formed concrete curb, curing compound shall be
applied to all exposed surfaces including sides after any forms are removed.
iii) The concrete curb shall be allowed to cure for a minimum of 5-days prior
to commencing backfilling operations adjacent to the concrete curbing.
B)Backfilling
i) The spaces adjacent to the concrete curb shall be backfilled in accordance
with Section 605.04(g) of the Standard Specifications onlyt he concrete
curbing is inspected and accepted by the Engineer in accordance with
Section 5 of this policy.
ii) Backfilling operations shall be completed prior to opening the area to
regular construction traffic.
5) Inspections
A)All materials furnished and each part or detail of the work will be subject to
inspection per Section 105.10 of the Standard Specifications for the purpose of
ascertaining that the work is in substantial conformance with this policy and the
approved construction documents.
B)The Contractor shall notify the Engineer a minimum of 48-hours in advance of
commencing any work subject to the standards established by this policy.
C)The Contractor shall schedule proof rolls with the Engineer a minimum of
48-hours in advance of such proof rolls.
D)The Contractor and Engineer will conduct an inspection of the new concrete
curbing for any damage, including freezing or random cracks. The inspection
and all necessary repairs shall be completed prior to backfilling operations.
E)Sampling and testing of materials, equipment or construction work may be
required at the expense of the Contractor at the discretion of the Engineer for the
purpose of ascertaining that the work is in substantial conformance with this
policy and the approved construction documents. Sampling and testing shall
conform to the requirements of the sections of the Standard Specifications
applicable to the portion of the work suspected to be non-compliant or as
directed by the Engineer.
F)Where the Engineer determines that is necessary to confirm compliance with
standards of quality or thickness, concrete curb shall be cored and tested at the
expense of the Contractor. The average thicknesses of the curb must equal or
exceed the minimum prescribed by the approved construction documents.
G)Such inspections shall not be construed to relieve the developers' engineers
or contractors in any way from their obligations and responsibilities under their
contracts. Specifically, inspection by the Engineer, or by retained engineers or
testing agencies, shall not require them to assume responsibilities for the
approved construction documents, for any misinterpretation of the approved
construction documents by the contractors during construction, or for the means
and methods of construction, nor for safety on the job site.
H)Work identified to not meet the requirements of this policy or the approved
construction documents, unacceptable work, whether the result of poor
workmanship, use of defective materials, damage through carelessness, or any
other cause found to exist prior to the final acceptance of the work, shall be
removed immediately and replaced in an acceptable manner at the Contractor's
expense.
I)If the Contractor fails to comply forthwith with any order made under the
provisions of this subsection, the Engineer will have authority to cause
unacceptable work to be remedied or removed and replaced; to cause
unauthorized work to be removed; and to deduct the costs from any monies due
or to become due.
J)Work done contrary to instructions provided by the Engineer shall be considered
unacceptable and subject to immediate removal and replacement in accordance
with the instructions provided by the Engineer.
6)Acceptance
A)Before acceptance of the concrete curb, the Engineer shall determine if the
improvements are in substantial compliance with this policy (except for any
variances granted) and the approved construction documents.
B)The Engineer may, at his sole discretion, accept work that is not in conformance
with this policy provided that the work is bonded for a period greater than three
years. The Engineer shall establish the extended bonding requirement.
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