Proposed Sanitary Sewer No. 2595
NORTH COLLEGE
HILL SEWER REPLACEMENT, CONTRACT 2D & 3
Test
borings that were drilled for this project have been indicated on the
plans. Prospective Bidders are hereby
notified that a copy of the test borings are available at the Plans Sales Desk,
Room 100, Department of Sewers, Division of Wastewater Engineering, 1600 Gest
Street, Cincinnati, Ohio 45204, upon execution of a "Test Boring
Information Waiver of Liability".
The
geotechnical report was not prepared for purposes of bid development and the
accuracy of the report is limited. The Contractor should confer with a
geotechnical engineer and/or conduct additional study, in the area, to obtain
specific type of geotechnical information required for construction and for
preparation of bids. The Contractor should not over rely on the construction
recommendations included in the report.
These recommendations in the report are not final and are developed
principally from the judgment and opinion of the geotechnical engineer who
prepared the report.
Rock cores are available for viewing upon request in Room 101, Department of Sewers, Division of Wastewater Engineering, 1600 Gest Street.
Before construction is
started, the Contractor shall submit a construction schedule to the
Engineer. This schedule shall outline
the sequence in which the Contractor proposes to conduct operations and shall
be approved by the Engineer before work is started.
It shall be the
responsibility of the Contractor to uncover the existing conduit as the first
order of work to determine the elevation and alignment of the existing conduit.
A test hole shall be taken at the crossing of the 8’x 6’ culvert located on sheet 5/22 of contract 3 to confirm clearance. The
Engineer shall determine if adjustments are required.
Live connections to the
proposed sewer can only be made after construction of manhole #40, located on
Foxwood Drive as shown on sheet 2 of the North College Hill Contract 2D
contract plan, and acceptance by MSD of the downstream sewer system (North
College Hill Contract 2C) currently under construction. Manhole number 40 and the downstream sewer
system is currently scheduled to be complete on December 12, 2002. This date shall be considered tentative with
completion before or after December 12, 2002.
MSD shall determine when manhole #40 is sufficiently complete and when
the downstream sewer has been accepted, to make live connections.
LIQUIDATED DAMAGES
Per
the requirements of Section III
F, “Binding Effect”, of the “Interim Partial Consent Decree for Sanitary
Sewer Overflows”, the Metropolitan Sewer District of Greater Cincinnati (MSD)
hereby notifies the Contractor of the following:
On February 15,
2002, the United States EPA, United Department of Justice, and the State of
Ohio lodged with the United States District Court for the Southern District of
Ohio Western Division, an “Interim Partial Consent Decree for Sanitary Sewer
Overflows”. Copies of the Consent
Decree are available from the Metropolitan Sewer District of Greater
Cincinnati, Regulatory Response Unit, 1600 Gest Street, Cincinnati, OH
45204.
Liquidated
damages per 108.07 of the City of Cincinnati Supplement shall be assessed to the
Contractor for failure to complete construction by the December 31, 2004.
Beginning January 1, 2005 the assessments will be applied, as follows,
until construction is complete:
1
- 30 calendar days $1,500/calendar
day
31 - 60 calendar days $3,000/calendar day
Over 60 calendar days $5,000/calendar day
Following award of the Contract and before starting any work, the Contractor, the Contractor’s Superintendent, and Foreman shall meet with the Engineer, the Field Engineer and the Inspector in the office of the Engineer for a preconstruction meeting. The Contractor will be notified of the date and the time of the meeting. The Contractor shall bring their Workmen's Compensation Certificate and Proof of Liability Insurance to the preconstruction meeting.
A field office shall be provided as described below. The cost of the field office shall be included in the various contract items.
The field office shall be in accordance with Item 619 of the State of Ohio (ODOT) Construction and Material Specifications. A Type “A” field office shall be required. In addition to the standard equipment for a Type “A” field office, the field office shall include a fax machine connected to an independent telephone line, one four drawer legal size file cabinet, and one storage locker with lock suitable for surveying equipment.
The Contractor shall be
responsible for maintaining “local” traffic at all times and for notifying the
proper authorities regarding the closing of roads.
It is the intention to
perform the required work with the least inconvenience to, and maximum safety
of the Contractor and the traveling public.
Any variances from these Maintenance of Traffic notes must be approved in
advance, in writing, by the Engineer.
The Contractor shall not
begin work until standard barricades and warning signs are in acceptable
position and the markers and signs conform to the "Ohio Manual of Uniform
Traffic Control Devices for Streets and Highways". The cost of all traffic
control devices shall be included in the various contract items.
The Contractor shall
maintain local traffic at all times during construction of this project in a
manner causing the least amount of inconvenience to the abutting property
owners. Temporary Driveways, Temporary
Roadways, or Turn-Arounds as may be necessary to provide vehicular access to
and from the abutting properties shall be constructed, maintained and
subsequently removed by the Contractor, as directed by the Engineer.
MSD will obtain, process and
pay for all required street opening permits.
Any cost for inspection and testing required by jurisdictional agencies,
in addition to that supplied as part of the street opening permit, will be
billed to and paid by MSD, excluding penalty charges for delays due to the
Contractor's operations.
When excavating in pavement,
the portion of the pavement not in the sewer main construction shall be kept
clear of all excavated material. Only a
portion of the trench shall be excavated at a time and closed again with
granular material, or controlled density backfill, before the pavement over the
balance is removed, as directed by the Engineer.
All pavement and/or right‑of‑way openings within the public right‑of‑way must conform to the current edition of the State of Ohio, Department of Transportation, Construction and Material Specifications, with supplements or changes thereto. Also, the Contractor assumes all responsibilities and liabilities regarding strict adherence to applicable sections for the Maintenance of Traffic and Public Safety as set forth in the "Ohio Manual of Uniform Traffic Control Devices for Streets and Highways". All traffic control devices must be in place prior to starting construction.
The Contractor shall save
harmless the City of Cincinnati and the Board of County Commissioners of
Hamilton County and all its representation from all suits, actions, or claims
of any character brought on account of any injuries or damages sustained by any
person, or persons, or property in consequence of this construction project due
to construction operations.
Police and Fire access shall
be maintained at all times. If at any
time traffic has to be blocked, the Contractor shall notify the local Police
District and Fire Division.
On North Bend Road at
Witherby Avenue between the hours of 7-9 a.m. and 4-6 p.m. (Monday through
Friday), and during all non-working hours, the entire roadway shall be open and
available for the movement of traffic.
During all working hours two-way traffic shall be maintained. Flagging procedures may be necessary and are
to be provided by the contractor.
The cost of the maintenance
of traffic shall be included in the various contract items.
The Contract Drawings show
all underground utilities, water, gas, and sewer lines known to exist. However,
this does not guarantee that all existing lines and appurtenances have been
shown on the Contract Drawings, and the City assumes no responsibility for the
accuracy thereof and does not free the Contractor from necessary precautions
for the protection of any utility encountered on the project or the restoration
of any utility damaged during the work.
The Contractor shall notify,
at least 48 hours before breaking ground,
all public and/or private service corporations having wire, poles, pipes,
conduit, manholes or other structures that may be affected by this operation,
including all structures which are affected and not shown on the Contract
Drawings. Owners of underground utilities,
which are members of the Ohio Utilities Protection Service, can be notified by
calling 800‑362‑2764 (toll
free). Non‑member underground
utility owners must be called directly.
Supporting and/or protecting existing water lines, gas mains, telephone conduit, guy lines, electric/telephone poles, storm sewers, etc., shall be included in payment for the various contract items of work.
All work required for the
maintenance of service of existing utilities shall be done by, and at the
expense of the Contractor.
All maintenance, repair
and/or replacement of existing utilities shall be in accordance with the Rules
and Regulations of the various utility companies having jurisdiction.
All existing storm sewers,
driveway drains, and other surface drain pipes, whether shown on the Contract
Drawings or not, which are removed or damaged during construction shall be
repaired and reconnected by the Contractor, as directed by the Engineer, at no
cost to the City. All utilities other
than water and sewer lines are to be relocated, as directed by the Engineer, at
no cost to the City.
It is assumed that there are water and gas branch lines, etc., serving each residence. The Contractor shall repair or replace these utilities, if damaged, at no cost to the City.
It shall be the Contractor's
responsibility during the construction of this project to work equipment around
poles, trees, or other obstructions which permit the passage of the bucket and
boom but prevent passage of other portions of the equipment and, if necessary,
to excavate from both sides of the poles, trees, or other obstruction, and to
remove materials by hand labor, tunneling, or by other means, all at the
Contractor’s own expense.
It is the intent of these Detailed Provisions to provide a procedure for keeping the restoration of seed and sod areas and driveways current with the installation of the sewer pipe. This will be considered a part of the sewer installation and failure to keep restoration of these items completed reasonably close to the installation of the sewer pipe shall be cause to delay payment for sewer pipe installed until such restoration is completed to the satisfaction of the Engineer.
It shall be the
responsibility of the Contractor to make timely requests of the City for any
additional information not already in the Contractor’s possession and which
should be furnished by the City under the terms of this Contract, and which
will be required in the planning and execution of the work. Such requests may be submitted from time to
time as the need approaches, but each shall be filed in ample time to permit
appropriate action to be taken by all parties involved so as to avoid delay.
Each request shall be in
writing, and list the various items and the latest day by which each will be
required by the Contractor. The first
list shall be submitted within two (2) weeks after contract award and shall be
as complete as possible at that time.
The Contractor shall, if required, furnish promptly any assistance and
information the Engineer may require in responding to these requests of the
Contractor. The Contractor shall be
fully responsible for any delay in work, or to the work of others, arising from
failure to comply with the provisions of this section.
The Contractor shall not
trespass upon or in any way disturb property outside the street right‑of‑way,
or outside the limits of construction, without first obtaining written
permission from the owner to do so. A
copy of such written permission shall be furnished to the Engineer.
If the Contractor finds it
necessary to obtain additional working area, it shall be the Contractor’s
responsibility for its acquisition. All
requirements listed under the "Use of Premises" shall apply if
additional area is obtained.
The Contractor shall, at the
Contractor’s expense, restore such property to the full satisfaction of the
owner, and shall obtain from the owner a written release stating that
restoration has been satisfactorily made.
A copy of the written release shall be furnished to the Engineer.
The Contractor shall not
waste any excess earth, stone, or other excavated material on any property
without first obtaining written permission from the owner of the property and
securing the approval of the Engineer.
One copy of the owner's written permission, and one copy of a written
release from the owner stating that the work has been completed satisfactorily,
shall be furnished to the Engineer.
All items within the construction
limits and the street right‑of‑way shall be removed, or removed and
replaced, or restored as required by the Contract Drawings and Specifications,
as directed by the Engineer.
PROTECTION OF TREES
The Contractor shall take precautions to avoid any unnecessary damage to trees. Branches which overhang the construction limits and which interfere with the operation of equipment shall be tied back to avoid damage, if possible. Where injury to branches is unavoidable, the branches shall be sawed off neatly at the trunk or main branch and the cut area shall be painted with an approved tree paint immediately. Any trees damaged beyond saving shall be removed by the Contractor at the Contractor’s expense, and in the case of trees located on private property, the Contractor shall make restitution to the owner.
It will be the
responsibility of the Contractor, throughout the tenure of this contract, to
provide and maintain sufficient flow at all times to pass any flash or storm
flow of drainage ditches, creeks, streams and rivers, and to prevent any
backwater flooding due to obstruction caused by construction equipment and/or
materials.
The Contractor shall
maintain sewage flow of the sewer main at all times during construction of the
proposed conduit by by-pass pumping or diverting sewage flow into temporarily
installed conduit. The pumps or conduit
used to maintain flow must be of adequate size to prevent surcharging of the
existing sewer. This cost shall be
included with the various 603 items.
The Contractor shall be
responsible for prohibiting storm or subsurface water from entering the
sanitary sewer during construction as may be caused by flash floods, heavy
rains, etc.
The cost of this work shall
be included in the unit price bid for the various contract items.
Any fences, signs, mailboxes, and guardrails that need to be removed to facilitate sewer construction operations shall be replaced, in kind or with repairs satisfactory to the owner, at the Contractor's expense. Replacement of fences, signs, mailboxes and guardrails shall be considered a part of the sewer installation and shall be done immediately after the installation and backfilling of the sewer. The costs for the removal and replacement shall be included in the price bid for the various contract items.
All restoration shall be
completed in strict accordance with the appropriate items of the
Specifications, as directed by the Engineer.
The cost of all restoration
of streets, drives, walks, sod, etc., shall be included in the various items of
the Contract.
All drainage ditches
disturbed by the Contractor’s work shall be restored, reshaped and graded to
drain properly.
All disturbed areas shall be
restored as nearly as practical to the condition they were prior to
construction.
Pavement restoration shall
be in accordance with the “Typical Restoration Section” and the provisions of
the Governing Agency responsible for the particular road, as directed by the
Engineer.
The restoration of sunken
trenches shall be the Contractor's responsibility. Sunken areas shall be backfilled and compacted to meet adjoining
grades and the surface area reseeded, or resurfaced with asphalt or concrete
matching the existing surfacing. The
Contractor's responsibility for this item shall be under the terms of, and for
the duration of, the guarantee defined in 109.11 of the City Supplement.
The Contractor shall restore
unpaved areas by seeding and mulching (Item 659) unless otherwise noted
herein. Commercial fertilizer shall be
used and shall have a chemical analysis of 12‑12‑12. The fertilizer shall be delivered to the
project site in manufacturer's containers, unopened. The container, or an attached tag, shall have printed upon it the
manufacturer's name and the chemical analysis of the contents.
Driveways shall be restored in kind or with two (2) inches of Asphalt Surface Course (Item 404) on a six (6) inch Aggregate Base (Item 304) or with seven (7) inch thick Plain Portland Cement Concrete Pavement (Item 452). Concrete walks shall be restored with a five (5) inch thick Plain Portland Cement Concrete Walk (Item 608).
All permanent and temporary Right-of-Way has been acquired for this project. Copies of the signed easement drawings and agreements are on file at the Department or Sewers, 1600 Gest Street, Cincinnati, Ohio.
The Contractor shall comply with all special agreements negotiated by the City and shall include the cost of the necessary materials, labor, and equipment in the price bid for the various contract items.
Phase 2D:
Parcel 595-2-374 (Henninger) Right-of-Way Acc.
No. 55398, Contract Sheet 2/9
1. Storage of materials and equipment on said property shall be limited to 30 days subject to extension in the event of adverse weather conditions, labor strikes or unexpected geological conditions.
Parcel 595-2-134 (Fiedeldey) Right-of-Way Acc.
No. 55401, Contract Sheet 3/9
1. Contractor shall install and maintain temporary construction fencing for the protection of the owners pet during construction on said property.
2. Owners swimming pool shall not be disturbed. Should said pool be damaged as a direct result of construction, it shall be repaired at the Contractors expense.
3. Should Contractor damage any existing fences,
Contractor shall repair or replace at the Contractors expense.
Parcels 595-4-28,29,30 (Village of NCH
Condominiums) Right-of-Way Acc. No. 55405, Contract Sheet 6/9
1. Contractor shall abandon the existing holding tank on said property.
2. Contractor shall be responsible for restoration of the existing walk and planting in the area of construction.
3. It will be the Condo Associations responsibility to do the final restoration of the parking area.
Phase 3:
Parcels 246-1-1,6,7 (Savanah Gardens)
Right-of-Way Acc. No. 56411, Contract Sheet 10/22
1. Contractor shall crack the foundation of the swimming pool and fill and cover with soil from the sewer project.
2. The playground area is to be temporarily relocated as shown on sheet 10/22 Contract 3, construction drawing (Acc. No. 55871) during construction, if needed by the Contractor.
Parcel 595-4-27 (North Creek Apartments)
Right-of-Way Acc. No. 56406, Contract Sheet 2/22
1. Contractor shall maintain the existing signage in a location agreeable to the property owner during construction
All Parcels
1. Upon completion of the construction work, Contractor shall restore the property as nearly as practicable to the condition it was prior to construction.
2. All other physical features such as fencing and pavement shall be replaced by the Contractor in kind equal to or better than existing.
3. Contractor shall remove all project debris from the property at no cost to the property owner.
The Contractor will be responsible for providing
the necessary material and labor to follow all mitigative measures indicated on
the plans throughout the entire project.
The mitigative measures stated on the plans are guidelines to be followed
during the construction; alternatives to these measures should be submitted to
the City for approval two (2) weeks prior to the construction in the area
affected by the change.
Work
adjacent to and within the stream will be strictly observed by the Engineer to
assure compliance with the Contract Documents. Refer to creek crossing
restoration on plan sheet 8 of contract 2D if stream or embankment areas are
impacted. Costs for stream bank restoration shall be included in 603 items.
The
Metropolitan Sewer District will provide a qualified environmental inspector to
oversee construction operations for this project. The role of the environmental
inspector will be to assure that the Contractor is aware of the sensitive areas
within the project and of the steps necessary to complete the project with a
minimum of environmental impacts. The environmental inspector will also inspect
the project to assure that the mitigative measures and these Detailed
Provisions are adhered to by the Contractor during the construction of the
project and during site restoration activities.
Soil erosion and sedimentation controls shall be
installed and maintained over the duration of the project as needed. These
controls shall be located within or along the edge of construction between the
proposed sewer line and the stream.
Temporary
and permanent seeding shall be completed in stages to assure the restoration of
the area disturbed during construction.
The
Contractor shall give special attention to proper sewer construction, protection
of the stream and riparian areas and the following mitigative measures, as well
as those shown on the drawings. These
measures are being taken so that the stream can be restored to "before
construction" conditions.
a. The
Contractor shall maintain all haul roads throughout the construction to prevent
unnecessary construction traffic from using the creek in areas not disturbed by
actual sewer construction.
b. The Contractor shall maintain existing stream
cover by not removing or disturbing trees along the stream bank and other
miscellaneous in-stream shading items.
While working along the stream, use the area on the opposite side of the
sewer from the stream for material storage and stock piling of excavated trench
material.
c. Construction within the creek area shall be
initiated and completed during normal to low periods of flow.
d. During high creek flow periods, construction
work in the creek is prohibited; construction of sewer segments in areas away
from the creek will be permitted.
e. At creek crossings, do not disturb the
vegetation within the construction easement, except for the area required for
excavation and equipment passage. This
creek crossing shall include the creek and the creek banks.
f. When necessary, the creek flow can be
temporarily diverted around the construction area, provided the method to be
used receives prior approval by MSD and any disturbance to the stream is
minimized. Disturbed areas shall be
immediately restored, using the proper mitigative measures.
g. No solid or liquid wastes, including construction materials, shall be dumped or discharged into waterways or left where they may be washed away with stormwater runoff.
h. Where the trench crosses a stream with a
solid or layered rock bottom, the Contractor shall sawcut the trench edges to a
minimum depth of four inches (4").
The trench shall be backfilled with Class “C” concrete as indicated in
the creek crossing detail shown on the construction drawings. The Contractor also shall provide necessary
means to prevent fracturing of the bedrock due to equipment crossings.
i. All excess spoil material shall be removed
from the stream corridor area promptly and disposed of in an environmentally
sound manner. If wasted on site, it
must be placed outside the riparian area and seeded immediately.
j. Stream bank restoration or rock channel
protection shall be used, as directed by the Engineer when the excavation of
the sewer disturbs the stream bank. The
protection shall be a minimum of two feet (2') thick from stream's edge to a
minimum of two feet (2') above normal flow elevation, unless otherwise shown on
the plans. Above this rock channel
protection, a three-foot (3') wide strip parallel to the stream shall be
planted with willow sprigs and the remaining slope seeded with a mixture of
fescue and clover. If this slope is
greater than 3:1, including small drainage swales, the Contractor shall use
erosion control devices to prevent erosion, as per ODOT specification Item No.
670 and ODOT Standard Drawing DM-4.2M, Jute and Excelsior Matting.
k. Dewatering flows are to be settled or
filtered before discharge to stabilized sites, such as streams or storm sewers,
not onto exposed soils, streambanks, or any other sites where the flows could
cause erosion.
The cost for this work shall be included in the
price bid for the applicable Environmental Compliance bid item.
The
Contractor will be responsible for submitting an Erosion Control Plan prior to
the initiation of any construction work.
The plan shall be submitted within two (2) weeks following the Notice of
Award of the Contract. Once approved,
the plan shall be used by the Contractor throughout the project. Deviations from the approved plan will need
to be submitted to MSD three (3) weeks prior to the change for MSD's
consideration.
The
plan shall be used to address the environmental concerns shown on the Contract
Drawings and the Mitigative Measures of these Detailed Provisions. The Erosion Control Plan shall include sound
creek crossing techniques, location of access/haul roads, location of staging
and stock pile sites, as well as type and location of erosion control
devices. The plan shall specify a
person responsible for overseeing the implementation of the items listed in the
Plan.
The
following shall be used as a guide to develop the Erosion Control Plan:
a.
Stream Crossing Work--detail method of
construction and stream flow diversion (i.e., coffer dams, by-pass pumping,
etc.); specify stream bank and vegetation protection; excavated material and
bedding material stockpile location.
b. Access/Haul Roads--identify ingress and
egress points along sewer alignment; location of haul roads within construction
easement along riparian areas; method of haul road creek crossing (culvert,
temporary bridge, etc.); proposed access points on private property.
c. Staging/Stockpile
Sites--identify location of potential site.
d. Erosion
Control Devices--identify type of erosion control device (silt fence, stream
bates, rock check dams, etc.); show location of devices (stream crossings,
sloping areas, etc.); timing and method of permanent stabilization and
re-vegetation.
The
cost for this work shall be included in the price bid for the applicable
Environmental Compliance bid items.
Clearing and grubbing shall
be performed in accordance with ODOT Item 201 and the City of Cincinnati
Supplement to the State of Ohio (ODOT) Construction and Material
Specifications, Item 201, except as otherwise noted herein.
Payment for all work, labor,
materials and equipment necessary to complete the work shall be at the lump sum
price for Item No. 201.
This item shall be constructed as shown on the plans and as directed by the Engineer. Fill, seal and abandon existing sewers 12” and larger in accordance with the method described in section 202.021 of the Cincinnati Supplement to the State of Ohio, Department of Transportation, Construction and Material Specification, except as stated. All fill material for sewers, located within the improved right-of-way, shall be with Controlled Density Backfill.
This item will be used in other areas only when directed
by the Engineer. Payment will be based
on the unit price bid per cubic yard.
Sewers that are to be abandoned shall be plugged or sealed where they join manholes, catch basins, or inlets. All existing sewers encountered in construction operations that are inactive, or are to be abandoned as determined by the Engineer, shall be plugged or sealed at both ends where broken into, before proceeding with backfilling.
Where
plugging or sealing is required, pipe 12-inches or less in diameter shall be
sealed by the installation of a suitable precast concrete or vitrified clay
stopper, properly cemented into place. Pipe or masonry sewers larger than
12-inches in diameter shall be sealed at the required locations by the
construction of a masonry bulkhead of brick, stone, or concrete having a
thickness of one-half of the sewer diameter, except that the minimum thickness
shall be 12-inches and the maximum thickness shall be 24-inches.
Manholes shall be abandoned in accordance with Item 202.09 of the State of Ohio (ODOT) Construction and Material Specifications, except as stated. All castings shall be disposed of at the Contractor’s expense. This item shall include all sanitary manholes to be abandoned as shown on the plans or as directed by the Engineer. All fill material for manholes, located within the improved right-of-way, shall be with Controlled Density Backfill.
Manholes
shall be removed in accordance with Item 202.08 of the State of Ohio,
Department of Transportation, Construction and Material Specifications. All castings shall be disposed of at the
contractor’s expense. This item shall include all sanitary manholes to be
removed as shown on the plans or as directed by the Engineer.
This
is a contingency item.
This
item will be used only when directed by the Engineer.
This
is a contingency item.
Only
special fill material not included in other pay items shall be measured for
payment.
This
is a contingency item.
No.
3 Gravel Bedding meeting the requirements of Item 703 of the State of Ohio
(ODOT) Construction and Material Specifications shall be furnished by the
Contractor, only as directed by the Engineer, when this particular type of
material is required in the work.