Project 189 - Addendum - 2011-03-15 Sn
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ADDENDUM NO. I
Contract Documents and Construction Plans
REHABILITATION OF SIX SEWERS TRANSFERRED TO CMSD
CIP PROJECT NO 189
Today's Date: March 15,2011
Bid Opening Date: March 29 2011
This Addendum is hereby made a part of the contract documents and construction drawings. Receipt of the
Addendum shall be noted on the Bid Form. The following changes, additions, clarifications or modifications shall
be made to the contract documents and construction drawings,all other conditions remain the same.
Original Bid Item 9
602 Remove Existing 10-inch VCP sewer and Install New
9 LF 10-inch PVC SDR 26 Sewer Main Per Plans and Specifications. Work
under this item shall include, but is not limited to, temporary paving and
patching or trench plates, trench excavation, control of ground water and
surface water, hauling off existing trench material, bedding, backfill, and
compaction per City Standard 813, installation of pipe and fittings,
removal or protection of interfering portions of existing utilities or
improvements, temporary and permanent support of utilities, disposal of
excess excavation materials and all other work necessary to install the
sewer main complete in place.
Work under this item shall also include adequate sheeting, shoring and
bracing or equivalent methods for the protection of the life and limb,
which shall comply to applicable safety orders including, but not limited
to, planning, designing, engineering, furnishing, constructing, and
removing temporary sheeting, shoring and bracing, and any other work
necessary to conform to the requirements of any permits, OSHA and the
Construction Safety Orders of the State of California, pursuant to the$
provisions of Section 6707 of the California Labor Code. LF $_
Description of revisions to Bid Item 9
Contractor s bid price to cover either day work or night work,as will be decided by the City of Costa Mesa.
Description of Alternate Bid Item 9A
The City of Costa Mesa requires either crushed miscellaneous base (CMB) or crushed aggregate base(CAB) as the
trench backfill material (not the bedding material which is specified on the plans). For this project, the City will
allow native material with a sand equivalent of 30 (SE 30) or imported material with SE 30. Because the existing
soil has a large clay component rendering it unusable for the backfill, the District desires a bid price using imported
soil with SE 30.
CMSD189 Rehabilitation of six sewers transferred to CMSD 1 of 2
Bid Item 9A
Identical to Bid Item 9 except using imported dirt meeting SE 30, all inclusive, including sample testing or other
necessary services of a soils engineer.
602 L.F @ $ 'ft. =$ Total
Total Contract Price
Total contract price using Bid Item 9=$
Total contract price using Bid Item 9A=$
The District reserves the right to award the project based on either Bid Item 9 or Bid Item 9A to the lowest
responsive and responsible bidder.
If there are any questions,please call(949)631 1731 office or(7 14)293-2727 cell. Thank you.
COSTA MESA SANITARY DISTRICT
Robin B. Hamers, PE
District Engineer
CMSD189 Rehabilitation of six sewers transferred to CMSD 2 of 2