CITY OF POWELL RIVER Addendum No. One
Date: Contractor: Contract Title: Contract No: DELETE Sections 4-10 REPLACE WITH 4.0
24 January 2011 All Tenderers South Harbour Float Assembly 2320-20-1992
LIST OF CONTRACT DRAWINGS Rev. Title Drawing No. Date Rev. No.
9 Heavy Float Assembly Drawing 12 Heavy Float Assembly Drawing 9 Heavy Ends Assembly Drawing 12 Heavy Ends Assembly Drawing Custom 9 Heavy Float End Assembly Drawing Custom 12 Heavy Float End Assembly Drawing Custom 12 Heavy Float End Assembly Drawing Custom 12 Heavy Float End Assembly Drawing Custom 12 Heavy Float End Assembly Drawing General Layout
FM9-HV-000 FM12-HV-000 FM9-HV-END-200 FM12-HV-END-000 FM9-HV-END-202 FM12-HV-END-202 FM12-HV-END-204 FM12-HV-END-206 FM12-HV-END-208 POWELL-001
07/10 07/10 07/10 07/10 10/10 10/10 10/10 10/10 10/10 01/11
Rev A Rev A Rev A Rev B Rev B Rev B Rev B Rev B Rev B Rev B

5.0 5.1

PRODUCTION General
The Contractor is responsible for the assembly and installation of timber modules. All timber shall be accounted for by the Contractor as received at the Assembly Yard (Barge Loading Facility: 4315 Marine Avenue, Powell River) from the Cutting, Drilling and Treating supplier. Any missing or unaccounted materials shall be reported immediately to the Engineer. Any material missing or damaged while the contractor is working will be replaced at the expense of the Contractor (including theft or vandalism; see Part 6.2 for safe storage of timber and materials). Work shall not commence until directed by the Engineer. Once the Engineer directs work to commence, the Contractor shall start assembly within five (5) working days. Work shall be conducted seven (7) days a week. The Contractor shall provide working crew capable of assembling a minimum of four (4) modules per day. Assembly of modules will be continuous throughout the project. As soon as enough modules are assembled to complete a float (refer to Table 2 in Part 5.3), the Contractor will provide a separate work crew to join the modules together on the ocean and will complete the assembly within three (3) working days per float. Therefore, assembling modules and connecting together as floats (on the ocean) shall be conducted simultaneously. Completed floats will be temporarily moored within the harbour to existing steel piles with Owner supplied materials, as directed by the Engineer and at the Contractors expense. The Engineer may inspect materials and products at his discretion at all stages of their manufacture, and transportation to the site. Satisfactory inspection at any stage does not preclude future rejection if the materials or products are subsequently found to lack uniformity or fail to conform to the requirements specified. Acceptance will not be made until all floats have been assembled and are satisfactorily delivered and moored at the project site. Any rejected materials shall be replaced at the expense of the Contractor. 5.2 a. Assembly Timber modules shall be assembled using Owner supplied materials and hardware specified in Part 10.0 and Section 05050 Metal Fastening. Decking shall be placed heart side down and shall be spaced with a gap of 3/8 between deck planks. Decking shall be nailed two per cross member. For example, a typical deck board on the 9 wide module will have two nails side-by-side in each stringer and two nails side-byside in each joist, for a total of 8 nails (two crossing stingers and two crossing joists). Repair of cuts, abrasions and holes in material treated with water-borne preservatives shall conform to CAN/CSA - 080.
5.3 Modules and Floats Below, are tables summarizing the number modules and floats for which timber shall be assembled as part of this Contract. The timber sizes and hardware are provided in the Contract Drawings and are summarized in Part 10.0 of this Section. The Custom Front End Modules are designed to attach floats on an angle. Extra timber, hardware and materials capable of assembling one 9 wide float module and two 12 wide float modules are provided and shall remain separate unless required and approved by the Engineer. TABLE 1 Quantity of Modules QTY OF HEAVY MODULES MODULE TYPE 9' WIDE Standard Modules Back End Modules Custom Front End Modules 3 12' WIDE 4
TABLE 2 Quantity of Floats QUANTITY OF HEAVY MODULES FLOAT TYPE QTY OF FLOATS 9 WIDE STANDARD WIDE BACK END WIDE CUSTOM FRONT END WIDE STANDARD 12 WIDE BACK END 12 WIDE CUSTOM FRONT END 1 1
9 Wide 12 Wide 12 Wide 12 Wide 12 Wide

6.0 6.1

QUALITY ASSURANCE Inspection
Inspection methods used by the Owner before, during and after treatment shall conform to CAN/CSA - 080.

6.2 a.

Handling, Storage and Care of Wood The Contractor shall provide temporary fencing around any Owner supplied materials (including timber, billets and hardware). The Contractor is responsible for replacing any timber or materials missing or damaged due to theft or vandalism. Handling and storage of wood shall conform to CAN/CSA - 080. Wood shall be kept free of dirt and shall be stored in a location which will not create an excessive increase in temperature (green house effect) resulting in rapid drying of the material. Wood shall be stored in a manner which will prevent ponding or trapping of excess moisture between surfaces where it cannot dry readily. Improper storage of timber resulting in warped or twisted timber may be rejected by the engineer and replaced at the expense of the Contractor. The Contractor shall be capable of storing timber and materials for at least 2 months. EXECUTION Handling of Materials

d. 7.0 7.1

Timber and other Owner supplied materials damaged in any manner in handling during Assembly will not be accepted and shall be replaced at the expense of the Contractor. This includes damage from equipment, strapping and slings. 7.2 Shipping and Packaging
The Contractor is responsible for delivering assembled floats to the project site location, at the expense of the Contractor. 8.0 a. PERFORMANCE PROTECTION & INSURANCE The Contractor shall provide a Holdback of ten percent (10%) of the contract value upon Substantial Performance of the Work (see definition on page 10, in the CCDC 4) for a period of forty-five (45) days. Any deficiencies in this contract work found during assembly will be paid for from the 10% holdback. If no deficiencies are found, the full 10% Holdback will be returned to the Contractor at the end of the 45 day period. The Contractor shall provide insurance to cover any loss of timber. The Contractor shall identify the City of Powell River as a named insured for a minimum of $110,000. The bidders shall provide a bid bond of 10% of the tendered price of labour and materials. The bidders shall provide a Performance Bond, in the form of an Irrevocable Letter of Credit, for 50% of the contract value. WASTE MANAGEMENT AND DISPOSAL Do not dispose of preservative treated wood through incineration.

9.0 a.

Do not dispose of preservative treated wood with other materials destined for recycling or reuse. Dispose of treated wood, end pieces, wood scraps and sawdust at sanitary landfill selected by the Contractor and approved by the Consultant and/or Owner. Dispose of unused wood preservative material at official hazardous material collections site selected by the Contractor and approved by the Consultant and/or Owner. Do not dispose of unused preservative material into sewer system, into streams, lakes, onto ground or in other location where they will pose health or environmental hazard. OWNER SUPPLIED MATERIALS Timber

10.0 10.1

The following tables show the timber sizes that shall be received by the Contractor. Table 3 shows timber for all standard modules. Tables show timber for all custom ends, referenced to the Contract Drawings. The Contractor shall use these tables as reference for tracking and accounting timber supplied by the Owner. TABLE 3 TIMBER SIZES FOR STANDARD MODULES: FM9-HV-000, FM9-HV-END-200, FM12-HV-000, FM12-HV-END-000
TIMBER MEMBERS Flange 1 Flange End 1 Crosstie 1 Crosstie 2 End Crosstie 1 End Crosstie 2 Standard Crosstie 1 Standard Crosstie 2 Stringer 1 Stringer 2 Stringer End 1 Joist 1 QTY SIZE (IN) LG (FT) 22.00 4.50 9.00 12.00 9.00 12.00 9.00 12.00 22.00 8.00 4.50 14.00 LG (MM) 1372 4267

QTY 1 3

TABLE 8 TIMBER SIZES FOR CUSTOM END MODULE: FM12-HV-END-208
LG (FT) ITEM NO. short side 14.28 12.00 4.48 1.24 1.89 1.24 7.47 12.89 10.90 13.04 11.75 22.00 10.59 11.00 long side 14.28 12.00 4.80 1.56 2.21 1.56 7.79 13.21 11.22 13.37 12.29 22.54 10.91 11.00 LG (mm) short side long side 3327 3354

QTY 1 8

TIMBER MEMBERS Modified End Crosstie Standard Crosstie Modified Flange End Modified Spacer End Modified Spacer End B Modified Rail End B Modified Flange Modified Joist A Modified Joist B Modified Joist C Modified Stringer Modified Standard Stringer Modified Rail End Deck Plates

SIZE (IN) 6 12

Billets and Strapping
The billets and strapping supplied by the Owner are provided in Table 9, below. This includes extra billets for one extra 9 wide module and two extra 12 wide modules. For more details, refer to Section 02480 Buoyancy Billets.
TABLE 9 Billets and Strapping MATERIAL 9 Wide Billets (610 x 940 x 2418mm) 12 Wide Billets (610 x 940 x 3332mm) Filler Billets (610 x 940 x 1220mm) Strapping Galv. Nails (76mm LG.) UNIT each each each ft each QTY 5000

Module Hardware

The hardware supplied by the Owner is provided in Table 10, below. Refer to the Contract Drawings for a further breakdown of hardware. This includes extra hardware for one extra 9 wide module and two extra 12 wide modules. For more details, refer to Section 05050 Metal Fastening. TABLE 10 Module Hardware HARDWARE Galv. Hex Bolt (25 x 1118mm) Galv. Hex Bolt (25 x 1016mm) Galv. Hex Bolt (25 x 965mm) Galv. Hex Bolt (25 x 914mm) Galv. Hex Bolt (25 x 812mm) Galv. Hex Bolt (25 x 762mm) Galv. Hex Bolt (25 x 711mm) Galv. Hex Bolt (25 x 610mm) Galv. Hex Bolt (25 x 457mm) Galv. Hex Bolt (25 x 406mm) Galv. Hex Nuts (25mm) UNIT each each each each each each each each each each each QTY 3468
Galv. Washers (25mm) Galv. Spiral Nails (100mm LG.)

each each

6936 10944
Float Connection Hardware
The float connection hardware supplied by the Owner is provided in Table 11, below. This includes extra quantities. For more details, refer to Section 05050 Metal Fastening. TABLE 11 Float Connection Hardware MATERIAL Galv. Brackets (see Figure 1) Galv. Hex Bolt (19 x 305mm) Galv. Hex Nuts (19mm) Galv. Washers (19mm) TABLE 11 CONTINUED MATERIAL Galv. Chain (19mm) Galv. Shackles (32mm) UNIT ft each QTY UNIT each each each each QTY 104 104
FIGURE 1 Float Connection Bracket
DELETE Section Section 02480 BUOYANCY BILLETS REPLACE Section 02480 BUOYANCY BILLETS 1 1.1.1 General GENERAL Vendor is to supply coated buoyancy billets of expanded polystyrene bead or foam for float modules, including strapping and nails (see summary Table 1). RELATED WORK Section 0856 Product GENERAL.1 The dimensions of the finished coated billets will be as diagrammed. It is the contractor's responsibility to ensure that the finished billets will fit into the frame of the float without damage. The buoyancy billets shall be secured to the float frame members with nylon banding or plastic strapping. The billets of the floats will be coated with polyurea as specified in this section. Buoyancy billets will not be accepted if damaged in any manner in handling. Field repair of polyurea coating may be acceptable, subject to written approval by the Engineer.

1.2.2.1

SUMMARY OF MATERIALS AND QUANTITIES The table below shows the dimensions and quantity of billets, as well as strapping and nails. This includes extra billets for one extra 9 wide module and two extra 12 wide modules.
TABLE 1 Billets and Strapping MATERIAL 9 Wide Billets (610 x 940 x 2418mm) 12 Wide Billets (610 x 940 x 3332mm) Filler Billets (610 x 940 x 1220mm) Strapping Galv. Nails (76mm LG.) UNIT each each each ft each QTY 5000
PHYSICAL PROPERTIES.1 The materials will meet or exceed the following standards: POLYSTYRENE 76kPa POLYUREA N/A
PROPERTY Compressive Strength at l0"% deformation (minimum): Tear Strength: (minimum) Flexural Strength (minimum): Water Absorption By volume (maximum): Density (minimum): 2.3 POLYSTYRENE.1

30KN/m

124 kPa

16 kg/m3

1100kg/m3
The expanded polystyrene will be a uniform cellular structure free of voids resulting from unexpanded components or any other causes. If a beaded product is to be used, the beads will he fused so that when the product is broken by hand pressure, there is an excess of broken or sheared beads.
The billets he built-up to correct vertical depth using thinner layers, providing the bonding method is approved by the Engineer. No vertical joints will be permitted within the billet. Before coating the polystyrene billets will be cured to minimize moisture content. Polystyrene will contain 100% virgin bead (no reground material is permitted).
POLYUREA COATING.1 The polystyrethane foam will be sprayed to provide a minimum 2mm polyurea coating thoroughly bonded to the polystyrene billets and applied under dry conditions to ensure even application and bonding. Any break or separation in the coating will be cause for rejection. The coating will be uniform with an even surface, self-extinguishing, and impervious to gasoline and oil.
TESTING.1 Upon notification of acceptance of tender, the Contractor will submit to the Engineer a 100 x 150-x 600 mm sample of his method of bonding the materials.
HANDLING OF MATERIALS.1 Buoyancy billets will not be accepted if damaged in any manner in handling. This includes damage from strapping and slings. Field repair of urethane coating may be acceptable, subject to written approval by the Engineer.
DELETE Drawing POWELL-001

REPLACE WITH

DELETE Invitation to Tender Section 0856-003 phrase: Only those Contractors who obtain documents will be considered registered plan holders and thus eligible to submit a tender. REPLACE WITH All Contractors who obtain documents has a responsibility to register with the City in order to be eligible to submit a tender. ***END OF ADDENDUM NO. 1***