HomeMy WebLinkAboutBID - 9960 Precast Manholes & InletsBID 9960 PRECAST MANHOLES & INLETS Page 1 of 17
INVITATION TO BID
9960 PRECAST MANHOLES & INLETS
BID OPENING: 3:00 PM MT (our clock), March 18, 2024
The City of Fort Collins is requesting bids from qualified Vendors for precast concrete manholes & inlets.
As part of the City’s commitment to Sustainable Purchasing, electronic bid submission is
preferred. Bids shall be submitted online through the Rocky Mountain E-Purchasing System
(RMEPS) at http://www.bidnetdirect.com/colorado/city-of-fort-collins. Please note: submitting bids
through RMEPS may need additional time for completion. Bids not submitted by the designated Opening
Date and Time will not be accepted by the system.
Questions should be submitted in writing via email, to Pat Johnson, CPPB, Senior Buyer at
pjohnson@fcgov.com, no later than 3:00 PM MT (our clock) on March 11, 2024. Please format your
e-mail to include: Bid 9960 Precast Manholes & Inlets in the subject line. Questions received after this
deadline may not be answered. Responses to all questions submitted before the deadline will be
addressed in an addendum and posted on the Rocky Mountain E-Purchasing System webpage.
Rocky Mountain E-Purchasing System hosted by BidNet
A copy of the Bid may be obtained at http://www.bidnetdirect.com/colorado/city-of-fort-collins.
Prohibition of Unlawful Discrimination: The City of Fort Collins, in accordance with the provisions of
Title VI of the Civil Rights Act of 1964 (78 Stat. 252, 42 US.C. §§ 2000d to 2000d-4) and the Regulations,
hereby notifies all bidders that it will affirmatively ensure that any contract entered into pursuant to this
advertisement, disadvantaged business enterprises will be afforded full and fair opportunity to submit
bids in response to this invitation and will not be discriminated against on the grounds of race, color, or
national origin in consideration for an award.
The City strictly prohibits unlawful discrimination based on an individual’s gender (regardless of gender
identity or gender expression), race, color, religion, creed, national origin, ancestry, age 40 years or older,
marital status, disability, sexual orientation, genetic information, or other characteristics protected by law.
For the purpose of this policy “sexual orientation” means a person’s actual or perceived orientation toward
heterosexuality, homosexuality, and bisexuality. The City also strictly prohibits unlawful harassment in
the workplace, including sexual harassment. Further, the City strictly prohibits unlawful retaliation against
a person who engages in protected activity. Protected activity includes an employee complaining that
he or she has been discriminated against in violation of the above policy or participating in an employment
discrimination proceeding.
The City requires its Vendor to comply with the City’s policy for equal employment opportunity and to
prohibit unlawful discrimination, harassment and retaliation. This requirement applies to all third-party
Vendor and their subcontractors/subconsultants at every tier.
Colorado Open Records Act: The City is a governmental entity subject to the Colorado Open Records
Act, C.R.S. §§ 24-72-200.1 et seq. (“CORA”). Any bid submitted hereunder is subject to public disclosure
by the City pursuant to CORA and City ordinances. All submitted bids, Bid Forms, and the awarded
contract will be considered public records subject to disclosure under CORA. By responding to
Financial Services
Purchasing Division
215 N. Mason St. 2nd Floor
PO Box 580
Fort Collins, CO 80522
970.221.6775
fcgov.com/purchasing
BID 9960 PRECAST MANHOLES & INLETS Page 2 of 17
this Bid, Contractor hereby waives any and all claims for damages against the City for the City’s good
faith compliance with CORA.
Special Instructions
All bids must be properly signed by an authorized representative of the company with the legal capacity
to bind the company to the agreement. Bids may be withdrawn up to the date and hour set for closing.
Once bids have been accepted by the City and closing has occurred, failure to enter into contract or
honor the purchase order will be cause for removal of supplier's name from the City of Fort Collins' bidders
list for a period of twelve months from the date of the opening. The City may also pursue any remedies
available at law or in equity. Bid prices must be held firm for a period of ninety (90) days after bid
openings.
Submission of a bid is deemed as acceptance of all terms, conditions and specifications contained in the
City's specifications initially provided to the Vendor. Any proposed modification must be accepted in
writing by the City prior to award of the bid.
Only bids properly received by the Purchasing Office will be accepted. All bids should be clearly
identified by the bid number and bid name contained in the bid proposal.
No bid will be accepted from, or any purchase order awarded, to any person, firm or corporation in default
on any obligation to the City.
Bids must be furnished exclusive of any federal excise tax, wherever applicable.
Vendors must be properly licensed and secure necessary permits wherever applicable.
The City may elect where applicable to award bids on an individual item/group basis or on a total bid
basis, whichever is most beneficial to the City. The City of Fort Collins reserves the right to split the Bid
award to multiple vendors as deemed by the City to be most advantageous. The City reserves the righ t
to accept or reject any and all bids, and to waive any irregularities or informalities.
Sales prohibited/conflict of interest: no officer, employee, or member of City Council, shall have a
financial interest in the sale to the City of any real or personal property, equipment, material, supplies or
services where such officer or employee exercises directly or indirectly any decision-making authority
concerning such sale or any supervisory authority over the services to be rendered. This rule also applies
to subcontracts with the City. Soliciting or accepting any gift, gratuity, favor, entert ainment, kickback or
any items of monetary value from any person who has or is seeking to do business with the City of Fort
Collins is prohibited.
Freight terms: unless otherwise noted, all freight is F.O.B. Destination, Freight Prepaid. All freight
charges must be included in the unit prices submitted.
Collusive or sham bids: any bid deemed to be collusive or a sham bid will be rejected and reported to
authorities as such. Your authorized signature of this bid assures that such bid is genuine and is not a
collusive or sham bid.
Utilization of Award by Other Agencies: The City of Fort Collins reserves the right to allow other state
and local governmental agencies, political subdivisions, and/or school districts to utilize the resulting
award under all terms and conditions specified and upon agreement by all parties. Usage by any other
entity shall not have a negative impact on the City of Fort Collins in the current term or in any future terms.
BID 9960 PRECAST MANHOLES & INLETS Page 3 of 17
Vendor Registration: The City requires a new Vendor receiving awards from the City to submit IRS
form W-9 and requires all Vendors to accept Direct Deposit (Electronic) payment. If needed, the W-9
form and the Vendor Direct Deposit Authorization Form can be found on the City’s Purchasing website
at www.fcgov.com/purchasing under Vendor Reference Documents. Please do not submit these
documents with your proposal, however, if you take exception to participating in Direct Deposit
(Electronic) payments please clearly note such in your proposal as an exception. The City may waive
the requirement to participate in Direct Deposit (Electronic) payments at its sole discretion.
Bid results are posted online at http://www.bidnetdirect.com/colorado/city-of-fort-collins.
Gerry Paul
Purchasing Director
BID 9960 PRECAST MANHOLES & INLETS Page 4 of 17
CITY OF FORT COLLINS
GENERAL INFORMATION
The City of Fort Collins is requesting bids for precast manholes & inlets. The Specification 02605
Manholes, Inlets and Vaults is also included.
Schedule
The following represents the City’s target schedule for the bid. The City reserves the right to amend the
target schedule at any time.
• Bid issuance: March 5, 2024
• Question deadline: 3:00 PM MT on March 11, 2024
• Final Addendum issued: March 12, 2024
• Bid Opening Date: 3:00 MT (our clock) on March 18, 2024
Method of Award
The City reserves the right to split the bid award in whatever percentages are most advantageous to the
City. Award may be by line item, group of items or all items.
Awards from this bid will be based on lowest bid price. Delivery lead times and exceptions taken will also
be considered.
Agreement
The awarded Vendor will receive a Purchase Order from the City authorizing orders. Vendor should not
begin any Work prior to receipt of the Purchase Order.
Invoices & Payments
Invoices for services should be emailed to invoices@fcgov.com. A separate copy shall be sent to the
Project Manager.
Fees, Licenses, Permits
The successful Vendor shall be responsible for obtaining any necessary licenses, fees or permits without
additional expense to the City. All equipment shall be properly licensed and insured, carry the appropriate
permits and be placarded as required by law.
Laws and Regulations
All work and/or materials must meet current standards in force by recognized technical and
professional societies, trade and materials supply associations, institutes and organizations, bureaus
and testing laboratories.
The Contractor agrees to comply fully with all applicable local, State of Colorado and Federal laws and
regulations and municipal ordinances to include American Disabilities Act (ADA). The Contractor further
agrees to comply fully with the Occupational Safety and Health Act, all regulations issued there under,
and all state laws and regulations enacted and adopted pursuant thereto.
Warranty
Vendor warrants all equipment, materials, labor and other work, provided under this Agreement, except
City-furnished materials, equipment and labor, against defects and nonconformances in design, materials
and workmanship for a period beginning with delivery and ending twelve (12) months from and after final
acceptance under the Agreement, regardless whether the same were furnished or performed by Vendor
or by any of its subcontractors of any tier. Upon receipt of written notice from City of any such defect or
nonconformances, the affected item or part thereof shall be redesigned, repaired or replaced by Vendor
in a manner and at a time acceptable to City.
BID 9960 PRECAST MANHOLES & INLETS Page 5 of 17
Delivery
Delivery of all items shall be to the jobsites, all located within city limits of Fort Collins. The awarded
Contractor will work with the City Project Manager to determine where and when to deliver.
Freight terms: F.O.B. destination freight prepaid. All freight charges must be included in pricing submitted
on the Bid Schedule, and not entered as separate pricing. Any surcharges or additional costs shall be
noted & included in proposed pricing.
BID 9960 PRECAST MANHOLES & INLETS Page 6 of 17
CITY OF FORT COLLINS
BID SUBMITTAL INSTRUCTIONS
The following items must be provided in the bid submittal package:
• Bid Spreadsheet (This Excel spreadsheet is separate in BidNet and MUST be returned in
Excel format.)
• Acknowledgement. (This form is separate in BidNet and must be filled out completely.)
• Other documents may be submitted in Word or PDF format.
Failure to submit any of the above may result in your bid being considered non-responsive.
BID 9960 PRECAST MANHOLES & INLETS Page 7 of 17
9960 PRECAST MANHOLES & INLETS
BID SUBMITTAL
Surcharges, additional costs and shipping shall be noted & included in each line item price.
ITEM # QTY DESCRIPTION UNIT PRICE DELIVERY
LEAD TIME
Precast Concrete
Inlets:
1 20 Single Combination Inlet
2 1 5-foot Type R Inlet
3 1 10-foot Type R Inlet
4 1 Double Area Inlet
Precast Concrete
Manholes:
1 1 4-foot diameter manhole
2 7 5-foot diameter manhole
3 4 6-foot diameter manhole
*Each manhole was selected based on the assumption of a 10-foot manhole.
BID 9960 PRECAST MANHOLES & INLETS Page 8 of 17
ACKNOWLEDGEMENT
Vendor hereby acknowledges receipt of the City of Fort Collins Invitation to Bid and acknowledges
that it has read and agrees to be fully bound by all the terms, conditions and other provisions set
forth in 9960 Precast Manholes & Inlets except as otherwise noted. Additionally, Vendor hereby
makes the following representations to City:
a. All of the statements and representations made in this proposal are true to the best
of the Service Provider/Professional’s knowledge and belief.
b. The undersigned is authorized to do business in the State of Colorado and hereby
proposes to furnish and/or perform the services set forth in the Scope of Work and
Specifications, including all items listed on the Bid Schedule.
c. Vendor commits that it is able to meet the terms set forth in the Invitation to Bid, and
further acknowledges familiarity with all aspects of the project affecting the cost of the
work to be performed.
d. The undersigned does hereby declare and stipulate that this bid proposal is made in
good faith, without collusion or connection with any other person or persons bidding for
the same Work.
e. This bid proposal is a firm and binding offer, for a period of 90 days from the date hereof.
f. Vendor further agrees that the method of award is acceptable.
g. Vendor acknowledge receipt of addenda.
h. Vendor acknowledges no conflict of interest.
i. Failure to provide a public viewing copy will be considered a waiver of any claim of
confidentiality under Colorado Open Records Act (CORA). Vendor hereby waives any
and all claims for damages against the City for the City’s good faith compliance with
CORA.
Legal Firm Name:
Physical Address:
Remit to Address:
Phone:
Name of Authorized Agent of Firm:
Signature of Authorized Agent:
Primary Contact for Project:
Title: Email Address:
Phone: Cell Phone:
NOTE: ALL BID SUBMITTAL FORM PAGES MUST BE COMPLETED, SIGNED WHERE
REQUIRED & RETURNED WITH YOUR BID PROPOSAL PACKAGE.
BID 9960 PRECAST MANHOLES & INLETS Page 9 of 17
SECTION 02605
MANHOLES, VAULTS AND INLETS
PART 1 GENERAL
1.01 DESCRIPTION
A. This section covers the furnishing and placement of all manholes, vaults and inlets
and related materials and other appurtenances for water, sanitary, and stormwater
systems as detailed in the Construction Drawings.
B. Manholes shall be built according to the details shown on the Construction
Drawings. Where invert elevations prohibit the use of a standard manhole, a
shallow manhole with a flat top shall be used.
1.02 QUALITY ASSURANCE
A. Lay pipe and set manhole inverts true to line and grade shown on Construction
Drawings. Under no circumstances shall pipe be laid which results in a level invert,
reverse sloping invert, or a grade flatter than shown on the Construction Drawings.
1.03 JOB CONDITIONS
A. Use effective measures to prevent foreign material from entering the pipes into
manholes, vaults, or inlets.
B. Use effective measures to prevent the uplift or floating of manholes, vaults or inlets
prior to completion of the backfilling operation.
PART 2 PRODUCTS
2.01 CAST-IN-PLACE STRUCTURES
A. Manholes, Vaults, and Inlets
1. Concrete shall meet the requirements of Division 3.
2. Pipe penetration gaskets.
a. Reference Section 01000 – Approved Product Listing
b. Or An Approved Equal.
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3. Reference Construction Drawings for type of base required.
2.02 PRECAST STRUCTURES
A. Manholes, Vaults, and Inlets
1. Precast base and first barrel section monolithic, conformance ASTM C478,
Type II cement and shall be marked by the manufacturer.
2. Shall meet HS 25 traffic loading specifications and 300 PSF surcharge
load.
3. Pipe penetration gaskets.
a. Reference Section 01000 – Approved Product Listing
b. Or An Approved Equal.
4. Invert
a. Material: reference Division
b. Compressive Strength: 4000 psi at 28 days.
c. Invert shall be poured in conformance with Section 02605.3.02.B of
these Standards.
5. Reference Construction Drawings for type of base required.
B. Precast concrete sections shall be produced using Type II cement and fabricated
in accordance with ASTM C-478.
2.03 Barrels, Cones, and Grade Rings
A. Material: Precast Concrete, ASTM C478.
B. Cement: Type II.
C. Manhole joints shall be made using male and female ends so that when
assembled they make a continuous, uniform, and watertight manhole.
2.04 MANHOLE FRAMES AND COVERS
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A. Manhole frames and covers shall be minimum 400 lb. cast iron, 24-inch I.D. (clear
opening).,
B. The cover shall fit the ring in accordance with the manufacturer's dimensions.
Manhole covers for water, sanitary sewer, or storm sewer structures shall have a
concealed pick hole.
C. Covers with more than one lifting hole will not be accepted.
D. Bearing Surfaces: Machined, required for pavement and pedestrian locations,
knobby (type K) pattern.
E. Castings shall be free from holidays.
F. Aluminum covers are required on all meter vaults placed within non-traffic areas
and shall be locking type.
G. Manufacturers
1. Reference Section 01000 – Approved Product Listing
2. Or An Approved Equal.
H. Frost proof covers for water system appurtenances, if required, shall be grey iron
conforming to ASTM A48-83 Class 35B, and shall have a minimum clear opening
of 22”.
2.05 MANHOLE STEPS
A. Manhole steps shall be polypropylene, and shall be either cast into the manhole
wall or drilled into the manhole wall at the same time the manhole section is
installed. The manhole steps shall be approximately 9 inches wide by 13 inches
long, shall weigh approximately 2 pounds and shall be no more than 28 inches
from the top of the manhole nor more than 18 inches from the floor of the manhole,
vault, or inlet and shall be spaced no more than 12 inches apart.
B. Manufacturers
1. Reference Section 01000 – Approved Product Listing
2. Or An Approved Equal.
BID 9960 PRECAST MANHOLES & INLETS Page 12 of 17
2.06 JOINTS
A. Mortar
1. Mortar used in jointing precast adjustment rings and pointing the inside of
all joints between barrels shall be composed of one part Portland cement
and not more than three nor less than two parts of fine aggregate. Portland
cement shall meet the requirements of ASTM C150, Type II. Hydrated lime
or masonry cement shall not be used. Fine aggregate shall consist of well
graded natural sand having clean, hard, durable, uncoated grains, free
from organic matter, soft or flaky fragments or other deleterious
substances. The fine aggregate shall be thoroughly washed and shall be
uniformly graded form coarse to fine with a minimum of 95% passing a #4
sieve and a maximum of 7% passing a #100 sieve. All mortar shall be fresh
for the work at hand. Mortar that has begun to set shall not be used.
B. Sealants
1. The Contractor shall use preformed rope type plastic gaskets between
precast sections.
2. Acceptable Manufacturers.
a. Reference Section 01000 – Approved Product Listing
b. Or An Approved Equal.
c. "Ram-Nek" is not acceptable.
3. Two gaskets are required per joint.
4. Manufacturers approved primer required on both surfaces of joints.
5. Diameter:
a. 1-1/2 inch for up to five (5) inch wall thicknesses.
b. 2 inch for six (6) inch and greater wall thicknesses.
6. Gasket shall meet the requirements of ASTM C 443 or AASHTO M 198.
2.07 INSULATION
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A. Insulation shall be installed on all air relief vaults.
B. Ridged board insulation shall be minimum 1” thick closed-cell insulation board
suitable for use in contact with soil or water.
C. Sprayed foam insulation shall be minimum 1” thick closed-cell insulation suitable
for use in contact with soil or water.
2.08 GROUT
A. Reference Section 01000 – Approved Product Listing
B. Or An Approved Equal.
PART 3 EXECUTION
3.01 PREPARATION
A. Perform excavation in accordance with Section 02225, Trenching, Bedding And
Backfill.
3.02 CONSTRUCTION
A. Construct structures at locations and elevations indicated on the Construction
Drawings or otherwise designated by Engineer/Utility to accommodate field
conditions. Size is indicated on the Construction Drawings.
B. Invert channels shall be smooth and conform to the details shown on the
Construction Drawings. Changes in direction of flow shall be made with a smooth
curve having as large a radius as the manhole will permit (See City Standard
Detail).
Terminate pipe flush with interior wall and construct transitions smooth and of
proper radius for uninterrupted flow. In no case shall the invert flow section through
the structure be greater than that of the outgoing pipe. Finish invert prior to adding
any riser sections. Construct top of bench in manholes to match highest pipe
crown or as shown on the Construction Drawings.
C. Set each section plumb. Use sections of various heights to bring ring and cover
or top of vault or inlet to grade shown on the Construction Drawings. Where
standard manholes are used, the internal diameter of manhole barrels shall be
maintained to a distance of not more than 4 feet below finished grade. From that
point the manhole barrel shall be tapered to a 24 inch internal diameter. The
manhole barrels shall be tight at all joints. All manholes shall be watertight.
BID 9960 PRECAST MANHOLES & INLETS Page 14 of 17
D. Cones shall not be less than 8 inches nor more than 16 inches from the top of the
manhole ring. Precast adjustment rings shall be used on top of the cone to support
and adjust the manhole frame to the required final grade. The outside of the adjust
rings shall be covered by mortar, 5/8 inch thick and troweled smooth.
E. Join sections using preformed flexible plastic gaskets on both interior and exterior
shiplaps unless otherwise noted on Construction Drawings. All joint surfaces shall
be clean, dry, and warm during installation.
F. Fill all lifting holes and other imperfections with grout.
G. Neatly mortar the inside and outside of all horizontal joints. The mortar shall not
be less than 5/8 inch thick over the joint, and shall extend at least 4 inches either
side of the joint.
H. The joint between a cast-in-place base and the lowest precast section shall be
grouted, inside and outside.
I. Install rings and covers above cone of the manhole. Set ring in a full bed of mortar,
and encase in mortar around the entire perimeter, except in pavement areas.
Mortar shall be fresh for the work at hand. Mortar that has begun to set shall not
be used.
J. Do not preheat pre-formed plastic gasket material with a direct flame. Preheat the
material by other means until it is pliable.
K. Where shown on the Construction Drawings a piece of pipe of the proper size shall
be built into the manhole where future laterals may be connected. This pipe shall
be sealed with a plug at its outer end and an invert shall be built into each manhole
for such lateral connections.
L. The physical connection to the existing sewer system shall be plugged until the
sewer has been completed to the satisfaction of the Engineer/Utility.
M. Sanitary sewer services shall not be connected to manholes. All services shall be
tapped into the sewer main.
N. The minimum thickness of a cast-in-place base shall not be less than 8 inches
under the invert of the manhole channel.
O. The storm sewer may be laid continuously through manhole locations wherever
grade and alignment permit, and the manhole built later. In such cases, the base
shall be laid and carried up approximately 2 inches above the top of the pipe. After
manholes are built, the upper half of the pipe shall be cut out and the bottom
finished.
BID 9960 PRECAST MANHOLES & INLETS Page 15 of 17
P. Any curb opening greater than six (6) inches in height must have a metal bar
welded horizontally across the inlet for public safety purposes such that no
opening height is greater than 6 inches.
Q. All inlet covers must be stenciled or stamped with the following designation: NO
DUMPING - DRAINS TO RIVER
3.03 CONNECTION TO EXISTING MANHOLES
A. Storm sewer connections to existing manholes, where there is no existing pipe
stubbed out shall conform as nearly as possible to the essential requirements
specified for new manholes. The Contractor shall break out as small an opening
in the existing manhole as necessary to insert the new pipe. The existing concrete
foundation bench shall be reshaped in order to form a smooth, rounded base
similar to what should be formed in a new concrete base. Cement grout shall be
used as necessary to smoothly finish the new base and to seal the new line so the
junction is water-tight. New deflectors shall be installed to create a manhole
consistent with the Construction Drawings.
B. Sanitary sewer connections to existing manholes, where there is no existing pipe
stubbed out shall conform as nearly as possible to the essential requirements
specified for new manholes. The Contractor shall core drill as small an opening in
the existing manhole as necessary to insert the new pipe. The existing concrete
foundation bench shall be reshaped in order to form a smooth, rounded base
similar to what should be formed in a new concrete base. Cement grout shall be
used as necessary to smoothly finish the new base. A penetration gasket shall be
used to seal the new line so the manhole for a water-tight connection. Sanitary
sewer services shall not be connected to manholes. All services shall be tapped
into the sewer main.
3.04 MARKING COMPLETED MANHOLES IN NEW DEVELOPMENTS
A. Upon completion of backfill around manhole, a 4” x 4” timber shall be placed next
to each manhole, the exposed portion of which shall be no less than 4 feet above
the finished elevation of the subgrade.
3.05 FIELD QUALITY CONTROL
A. Sewer shall meet the requirements of the following tests. Furnish all equipment,
labor and incidentals necessary and conduct tests in the presence of Engineer.
1. Vacuum tests and leakage tests shall be used to test the sanitary sewer
manholes.
B. Vacuum Testing of Sanitary Sewer Manholes
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1. Manholes shall be vacuum tested after assembly and prior to backfilling.
a. Care shall be taken to affect a seal between the vacuum base and
the manhole rim. Pipe plugs shall be secured to prevent movement
while the vacuum is drawn.
b. A vacuum of 10 inches of mercury shall be drawn. The time for the
vacuum to drop to 9 inches of mercury shall be recorded.
c. Acceptance shall be defined as when the time to drop to 9 inches
meets or exceeds the following:
Diameter Time to Drop 1" Hg
4 ft. 60 seconds
5 ft. 75 seconds
6 ft. 90 seconds
8 ft. 120 seconds
d. If the manhole fails the test, make necessary repairs. Repairs and
repair procedures must be acceptable to Engineer.
e. If preformed plastic gaskets are pulled out during the vacuum test,
the manhole shall be disassembled and the gaskets shall be
replaced.
C. Each manhole shall be watertight and shall not have any visible leaks or damp
spots.
D. Repair and retest manholes that fail tests until satisfactory results are obtained.
3.06 CLEANING
A. Prior to completion of the Work, remove all accumulated construction debris, rocks,
gravel, sand, silt and other foreign material from the manhole.
B. Upon final inspection if any foreign matter is present in the system, re-clean the
manhole as required.
Install ring and covers on one or a maximum of two precast adjusting rings of
varying heights, not to exceed 4 inches in height each. The total allowable height
of adjusting rings and the ring and cover shall be as shown on the Construction
Drawings. Set rings in a full bed of mortar and encase in mortar around the entire
perimeter. Unless otherwise indicated, set the top of the rings such that no part of
the ring or cover will project above a point 1/4 inch below the finish surface of
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pavement in paved areas subject to cleaning by snowplows.
At air valve and access manhole locations the concrete manhole barrel sections
and flat lid shall be insulated with rigid insulation on the exterior or sprayed foam
insulation on the interior, to a minimum depth of 4 feet below ground level.
Fill all lifting holes and other imperfections with mortar. Neatly point inside of joints
no matter what joint material is used.
END OF SECTION