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HomeMy WebLinkAboutAddendum No.1 - SRP PH 2
Public Works Department
Addendum No.1 - SRP PH 2\
Sanitary Sewer Replacement Project Phase 2
CAG-25-090
ADDENDUM No. 1
Date of Addendum Issue: April 30, 2025
Due Date for Bids: 2:00 pm on May 08, 2025
Date of Bid Opening: 3:00 pm on May 08, 2025
To: ALL PLAN HOLDERS AND/OR PROSPECTIVE BIDDERS
The following changes, additions, and/or deletions are hereby made a part of the project
bid documents for the Sanitary Sewer Replacement Project Phase 2 and shall have the
same effect as if set forth therein. Bidders shall acknowledge receipt and acceptance of
this Addendum No. 1 by signing the addendum and submitting with the bid. Failure to
acknowledge receipt of this addendum may result in your bid proposal being
disqualified.
Special Provisions
DELETE the following bullet from section 1-09.14(2), Bid Items C9, C10, and C11:
• Performing backfill compaction tests and furnishing test reports to the Engineer.
This addendum consists one page, plus attachments.
Attachments:
• Specification Section 1-09.14(2), Bid Items C9, C10, and C11
ALL OTHER REQUIREMENTS OF THE CONTRACT DOCUMENTS REMAIN IN
EFFECT
Sincerely,
Jesse Newman, PE
Civil Engineer II (Project Manager)
City of Renton
All Bidders must sign this Addendum No. 1 in the space provided below and
attach the signed Addendum No. 1 to the Formal Bid Proposal
Signature: __________________________________ Title:_______________________
Company: __________________________________ Date:_______________________
Renton Sewer Replacement Project Phase 2
Special Provisions - 84 WWP-27-4273 April 2025
a. All labor, materials and equipment to following the contractor submitted Pipe Support plan,
see section 1-07.17, and see example Pipe Support Plan in Appendix.
b. Furnishing foundation and bedding materials for SPUs Trench Zone Bedding per SPU detail
350, placing and compacting foundation and bedding,
c. Furnishing foundation and bedding materials for the 8-inch sewer beneath SPU pipeline,
placing and compacting foundation and bedding,
d. Excavation, removal, haul, and disposal of waste materials including but not limited to
pavement, curbs, gutters, sidewalks, surplus and unsuitable excavated material, and
existing pipes,
e. Placing and compacting backfill,
f. Replacing, protecting and/or maintaining existing utilities, including support of SPU’s
Pipeline,
g. Trench dewatering and sedimentation tank mobilization, assembly, maintenance, relocation,
and removal,
h. Bypass sewer pumping (if needed),
Bid Item B24 and C8 – Minor Changes – Allowance
For the purpose of providing a common proposal for all bidders, the Contracting Agency has entered
an amount for Minor Change in the Proposal to become a part of the total bid by the Contractor. At
the discretion of the Contracting Agency, all or part of t his estimated amount may be used in lieu of
the more formal procedure as outlined in Section 1-04.4 of the Standard Specifications. The unit
contract price for Minor Changes is given in the Schedule of Prices and shall not be changed by the
bidder.
All work and payment under this item will be authorized in writing by the Engineer. Payment will be
determined in accordance with Section 1-09.4 of the Standard Specifications.
Payment for this item will be only for the changes and amounts approved by the City. If no changes
are authorized under this bid item final payment for this item will be $0 (zero).
Bid Item C9 – Furnish and Install Ductile Iron Class 52 8 -Inch Diameter Restrained-Joint
Water Pipe and Restrained-Joint Fittings with Polywrap – Linear Feet
Measurement for Restrained-Joint Ductile Iron Water Pipes and Restrained-Joint Fittings with
Polywrap of the size, type and class specified will be based on the actual lineal footage measured
horizontally over the centerline of the installed pipe and fitti ngs.
Payment for 6-inch ductile iron pipe for hydrant laterals up to 20 feet in length is included in the bid
item for fire hydrant assembly.
Payment for Restrained-Joint Ductile Iron Water Pipes and Restrained-Joint Fittings with Polywrap of
the size, type, and class specified shall cover the complete cost of providing all labor, materials,
tools, equipment required to complete the work specified in the contract documents and plans, and
shall include but not be limited to the following:
• Locating all existing utilities, water main and services and potholing in advance to determine
their horizontal and vertical locations
Renton Sewer Replacement Project Phase 2
Special Provisions - 85 WWP-27-4273 April 2025
• Saw cutting existing asphalt and concrete pavement up to 12” in depth, sidewalk, curb, and
gutter
• Trench dewatering (if needed), including but not limited to sump pumps and hoses and
sedimentation tank mobilization, assembly, maintenance, relocation, and removal
• Excavation, removal, hauling, and disposal of pavement, curbs, gutters, sidewalks, and
unsuitable excavated material including existing pipes and structures in the excavation and
the like
• Structure Excavation Class B
• Stockpiling suitable excavated material for use as pipe bedding and trench backfill as
directed by the Engineer
• Hand digging as required to complete construction and protect existing improvements,
including rockeries, signs, mailboxes, decking, etc., and utilities
• Furnishing, installing, laying, and jointing restrained -joint water pipes and restrained-joint
fittings of the size, type, and class shown on the plans and as specified in Section 9 -30.2(6)
of the contract special provisions, polyethylene encasement, special fittings including wedge
type restrained-joint follower glands at all fittings with mechanical-joint ends, tees, crosses,
reducers, spools, couplings, sleeves, horizontal and vertical bends, and all incidentals
• Deflecting the pipes and/or installing vertical bends with concrete blocking as required to
cross over or under buried utilities based on results of potholing and as directed by the
Engineer
• Furnishing and installing polyethylene foam pad (Dow Plastics Ethafoam 200 or approved
alternate) where necessary at utility crossings
• Furnishing, placing, and compacting crushed surfacing base course for pipe bedding
materials and for pipe zone backfill materials for ductile iron pipes and fittings. Recycled
material and recycled concrete aggregate as defined by WSDOT Section 9-03.21 shall not be
allowed as bedding or pipe zone materials.
• Placing and compacting trench backfill. Recycled material and recycled concrete aggregate
as defined by WSDOT Section 9-03.21 shall not be allowed as trench backfill.
• Performing backfill compaction tests and furnishing test reports to the Engineer
• Furnishing and installing all poly-pigging station materials, temporary blow-off assemblies,
and temporary thrust blocking for testing
• Poly-pigging, pressure-testing, disinfecting and flushing of new piping, purity testing in
accordance with contract specifications
• Replacing, protecting, restoring, and/or maintaining existing utilities
• Protecting existing survey monument cases
• Furnishing and placing temporary hot mix asphalt patching. Temporary hot mix asphalt
includes all hot mix asphalt and/or temporary asphalt that is not part of the final trench patch
and overlay
• Furnishing and placing concrete for vertical and horizontal blocks, dead -man anchor blocks,
reinforcing steel, shackle rods, clamp assembly, anchor bolts, turnbuckles, concrete form
work
Renton Sewer Replacement Project Phase 2
Special Provisions - 86 WWP-27-4273 April 2025
• Removal, hauling, and disposal of pavement, curbs, gutters, sidewalks, surplus and
unsuitable excavated material, blow-off assemblies, excluding any asbestos cement pipe or
fittings
• Plugging and capping water lines and fire hydrant runs, removal of valves, valve boxes, tees,
services, and appurtenances as shown on the Plans or as required to complete the Work
• Furnishing all required pipes, fittings, ductile iron end caps, plugs, blind flanges, adapters,
couplings, and incidentals as required for City’s water department’s personnel to perform
each cut and cap of existing water mains during the final connections of the new mains to the
existing water mains
• Backfilling voids left by removed items with suitable native material or gravel borrow as
approved by the Engineer
Bid Item C10 – Furnish and Install 12-Inch x 8-inch Tapping Tee and Valve Assembly –
Each
Measurement for Tapping Tee and Valve Assembly of the size specified will be per each for each type
of tapping tee with tapping gate valve assembly installed in conformance with the Contract
Documents.
Payment for Tapping Tee and Valve Assembly of the size specified shall cover the complete cost of
providing all labor, materials, tools, and equipment required to complete the work specified in the
contract documents and plans, and shall include but not be limited to the following:
• Locating all existing utilities, water main and services and potholing in advance to determine
their horizontal and vertical location and alignment
• Saw cutting existing asphalt and concrete pavement up to 12” in depth, sidewalk, curb, and
gutter
• Trench dewatering (if needed), including but not limited to sump pumps and hoses and
sedimentation tank mobilization, assembly, maintenance, relocation, and removal
• Excavation, removal, hauling and disposal of pavement, curbs, gutters, sidewalks, and
unsuitable excavated material including existing pipes and structures in the excavation, and
the like
• Stockpiling suitable excavated material for use as pipe bedding and trench backfill as
directed by the Engineer
• Hand digging as required to complete construction and protect existing improvements
• Wet tapping the existing water main by a city approved wet-tap contractor (Speer Taps, Inc.
or Legacy Tapping, Inc.)
• Furnishing and installing a stainless steel or epoxy-coated steel tapping tee with full circle
seal, tapping gate valve assembly, valve box and cover to grade, stem extension, valve marker
post, polyethylene encasement, concrete support blocks, and all incidentals
• Furnishing, placing, and compacting crushed surfacing base course for pipe bedding
materials and for pipe zone backfill materials for ductile iron pipes and fittings
• Placing and compacting trench backfill
• Performing backfill compaction tests and furnishing test reports to the Engineer
Renton Sewer Replacement Project Phase 2
Special Provisions - 87 WWP-27-4273 April 2025
• Replacing, protecting, restoring, and/or maintaining existing utilities
• Protecting existing survey monument cases
• Furnishing and placing temporary hot mix asphalt patching. Temporary hot mix asphalt
includes all hot mix asphalt and/or temporary asphalt that is not part of the final trench patch
and overlay
• Furnishing all required pipes, fittings, adapters, couplings and incidentals as required for
City's water department's personnel to perform the final connection of the new water line to
the new tapping valve installed by wet tap on the existing water system. 8-inch ductile iron
sleeves and spools shall be considered as incidentals to this bid item and no further
compensation shall be made
Bid Item C11 – 1-Inch Water Service Connection – Each
Measurement for “1-Inch Water Service Connection” will be per each for each 1-Inch water
connection installed in conformance with the Contract Documents.
Payment for “1-Inch Water Service Connection” shall cover the complete cost of providing all labor,
materials, tools, and equipment required to complete the work specified in the contract documents
and plans, and shall include but not be limited to the following:
• Locating all existing utilities, water main and services and potholing in advance to determine
their horizontal and vertical location
• Saw cutting existing asphalt and concrete pavement up to 12” in depth, sidewalk, curb, and
gutter
• Excavation, removal, hauling, and disposal of pavement, curbs, gutters, sidewalks, surplus
and unsuitable excavated material including existing pipes and structures in the excavation
and the like
• Stockpiling suitable excavated material for use as pipe bedding and trench backfill as
directed by the Engineer
• Trench dewatering (if needed), including but not limited to sump pumps and hoses and
sedimentation tank mobilization, assembly, maintenance, relocation, and removal
• Hole-hogging, boring, tunneling, mechanical, or hand trenching to install new water service
lines
• Furnishing and installing new ball valve corporation stop, tapping the main, laying and
jointing the new copper water service line and fittings of the appropriate size and matching
Detail 320.1 on Drawing C029 as specified in the Construction Plans
• Furnishing and installing new meter setter and re-installing the existing water meter, new
copper water service line and fittings, washed gravel, adapters to accommodate 5/8”x3/4”
as needed, and new meter box and lid of the appropriate size and matching Detail 320.1 on
Drawing C029 as specified in the Construction Plans
• Furnishing and installing new copper water service line and fittings, new brass nipples, new
shutoff valve, washed gravel, and new meter box and lid of the appropriate size and matching
Detail 320.1 on Drawing C029 as specified in the Construction Plans
Renton Sewer Replacement Project Phase 2
Special Provisions - 88 WWP-27-4273 April 2025
• Testing, disinfecting, and flushing the new service lines in conjunction with the new water
mains
• Coordinating with property owner and working within private property
• Performing pre- and post-pressure tests of water service pressure at house external hose bib
or as directed by the Engineer and reporting the pre- and post-pressure results to the Engineer
• Connecting the customer-side private service line to the new copper tailpiece behind the
new water meter and property lines, installing the required fittings and materials
• Abandoning existing water service lines from the existing main by cutting and crimping or
capping
• Remove and wastehaul existing water meter box and setter
• Placing and compacting CSTC for trench backfill. Furnishing CSTC for water service line
trench backfill will be included in the measurement for Crushed Surfacing Top Course
• Performing backfill compaction tests and furnishing test reports to the Engineer
• Replacing, protecting, and/or maintaining existing utilities
• Protecting existing survey monument cases
• Restoration of public and private properties
• Furnishing and placing temporary hot mix asphalt patching. Temporary hot mix asphalt
includes all hot mix asphalt and/or temporary asphalt that is not part of the final trench patch
and overlay.