invitation to tender “itt” no. ps20200041 contractor … · 150mm x 150mm post growing medium...

FINANCE, RISK AND SUPPLY CHAIN MANAGEMENT

Supply Chain Management

City of Vancouver, Finance, Risk and Supply Chain Management 453 West 12th Avenue Vancouver, British Columbia V5Y 1V4 Canada tel: 604.873.7263 fax: 604.873.7057 website: vancouver.ca

INVITATION TO TENDER “ITT” NO. PS20200041 CONTRACTOR FOR CHARLESON PARK RENEWAL

INFORMATION MEETING – 10:00 am, February 11, 2020

QUESTIONS AND ANSWERS NO. 2

ISSUED ON: February 19, 2020

Q1 Is there a soils report?

A1 We are not aware of any soil report for this site.

Q2 Can the Japanese beetle soil be reused and buried on sight? Or can you quantify how much soil will need to be trucked to the Landfill?

A2 Yes, the soil can be reused on site. If removed, only the top 30 cm of soil needs to be deep buried. Woodchips and sand can be disposed of normally. Soil that is under hardscapes such as sidewalks can also be disposed of normally.

Q3 Is the land native foreshore or has it been built up?

A3 It is safe to assume that the park was located within the former shoreline of False Creek and was likely filled in with fill of unknown origin, with quality much like the rest of False Creek.

Q4 Are there noise restrictions? What are the allowed hours of operation?

A4 As per the City of Vancouver noise control bylaw, construction must be carried out between 7:30am to 8:00pm on any weekday that is not a holiday, and between 10:00am to 8:00pm on any Saturday that is not a holiday. Construction is not permitted on Sundays.

Q5 Does the site need to be secured with fencing?

A5 Yes, please have site secured with construction fencing.

Q6 Upon visiting the site, the boulder/timber retaining of the large tree on hill top may pose structural safety concerns per the design of the timber decking. We ask that the City revisit this design as there may be an unforeseen expense to works surrounds this item once the contractor begins investigating this scope.

A6 Please see attached revised drawing LSK 02 and answers A9 and A10. (Drawing “L5.04” has been revised as “LSK 02”)

INVITATION TO TENDER “ITT” PS20200041 CONTRACTOR FOR CHARLESON PARK RENEWAL

QUESTIONS AND ANSWERS #2

INFORMATION MEETING – 10:00 am, February 11, 2020

of 2

Q7 The drainage plans L2.01/L2.02 show solid pvc pipe under the playground, is this supposed to depict perforated drain line?

A7 Yes, perforated PVC.

Q8 Can the referenced Geotechnical Report please be provided?

A8 Please see attached Technical Memorandum.

Q9 How is the deck plan to be addressed, if/when the deck screws strike the buried boulders?

A9 ALLOWABLE JOIST SPAN / BEAM SPACING: Max. 3.37m. (Drawing shows 1.5m at the most, which means the deck could be extended to the east, or to the west, by spacing the beams further apart.) Allowable cantilever is 400mm.

ALLOWABLE BEAM SPAN / POST SPACING: The ground screws are considered to be the posts. The maximum distance between posts should be 1.8m apart. Drawing has been revised to show 5 additional ground screws

Total ground screws:

13 KSF U 66 x 865-91 3 KSF F 76 x 1600-R

Q10 Cross Section 3/L5.04 shows the lower deck screws projecting significantly into new topsoil, we feel that this will prove to lack structural strength to support the deck structure. Please advise.

A10 Where the grade drops on the west side of the deck, the ground screws have been changed to longer “F” type ground screws with an accessory and short post:

KSF F 76 x 1600-R

Please see attached revised drawing LSK 02.

Q11 What is the expected delivery and install date of the ship play structure & swing?

A11 Expected delivery is late April/Early May but can be adjusted. Please provide an estimated installation date so delivery can be coordinated accordingly.

PLEASE FIND BELOW, THE ATTENDANCE LIST FROM THIS INFORMATION MEETING:

1. Canadian Landscape and Civil Services 2. Cedar Crest Lands (BC) Ltd. 3. Landesign 4. Luxton Construction Inc. 5. New City Contracting Ltd. 6. Shangri-La Landscaping 7. TGK Irrigation Ltd. 8. Wilco Civil Inc. 9. Habitat Systems 10. Kelowna Safety Surfacing 11. Marathon Surfaces Inc.

TIMBER DECK - KEY PLANScale: 1:200

2

1

LINE OF EXISTING TIMBER WALL - TO REMAIN BENEATH PROPOSED DECK WHERE REMOVAL WOULD IMPACT EXISTING TREE ROOTS.

EXISTING TREE

PROPOSED TIMBER DECK

2x 38x184 TIMBER RIM JOIST (2x8)

38x184 TIMBER JOIST (2x8)

STAINLESS STEEL JOIST HANGER

OPENING FOR TREE TRUNK. ADJUST TO SUIT FRAMING AND DECKING LAYOUT AS REQUIRED.

38x184 TIMBER BLOCKING (2x8)

NOTES:

1. TOP DECK BOARDS AND FINISHING TIMBER TO BE SMOOTH YELLOW CEDAR.2. ALL UNDER STRUCTURE TO BE ACQ-TREATED SMOOTH INCISED END-SIZED NOMINAL TIMBERS.3. ALL FASTENERS ON ACQ-TREATED TIMBER TO BE STAINLESS STEEL.4. FASTENERS ON EXPOSED TIMBER TO BE COUNTER-SUNK.TIMBER DECK - PLAN

Scale: 1:204

1257

340

MA

X. 6

00

2837

2X 38x235 TIMBER BEAM (2x10)

19x235 FASCIA BOARD ALL EDGES TO GRADEBLOCK ACCESS TO VOID BENEATH DECK (1x10)

1580 1562

38x140 TIMBER DECKING (2x6)

38x140 DECK EDGE (2x6)

19x140 FASCIA BOARD EDGE BETWEEN DECK LEVELS (1x6)

1162

1257

1562

KRINNER GROUND SCREWKSF U 66x865-91 OR APPROVED EQUAL (REFER TO GEOTECHNICAL REPORT FOR ASSUMED SOIL TYPE)ATTACHED TO BEAMSPROVIDED BY GRIFF BUILDING SUPPLYINSTALLED BY LICENSED INSTALLER

TIMBER DECK - SECTIONScale: 1:20

3

16762x 38x184 TIMBER RIM JOIST (2x8)

38x184 TIMBER JOIST (2x8)

STAINLESS STEEL JOIST HANGER

EXISTING TREE

38x184 TIMBER BLOCKING (2x8)

2X 38x235 TIMBER BEAM (2x10)

19x235 FASCIA BOARD ALL EDGES TO GRADEBLOCK ACCESS TO VOID BENEATH DECK (1x10)

38x140 TIMBER DECKING (2x6)

38x140 DECK EDGE (2x6)

19x140 FASCIA BOARD EDGE BETWEEN DECK LEVELS (1x6)


EXISTING GRADE

PROPOSED GRADE - NOTE THAT GROWING MEDIUM IS TO BE ADDED AS PER ARBORIST SUGGESTION, RESULTING IN RAISED GRADES WITHIN A TREE PROTECTION ZONE.

225°225°

225°

225°

225° 225°

225°

225°

FOR 3 GROUND SCREWS ON WEST SIDE WHERE GRADE DROPS:KRINNER GROUND SCREWKSF F 76x1600-R OR APPROVED EQUAL.ALSO PROVIDE POST BEARER ACCESSORY, TYPE PLANE-R OR APPROVED EQUAL. PROVIDE WOOD POST, AND HARDWARE FOR ATTACHING POST TO BEAM.

FOR 3 GROUND SCREWS ON WEST SIDE WHERE GRADE DROPS:KRINNER GROUND SCREWKSF F 76x1600-R OR APPROVED EQUAL.ALSO PROVIDE POST BEARER ACCESSORY, TYPE PLANE-R OR APPROVED EQUAL. PROVIDE WOOD POST, AND HARDWARE FOR ATTACHING POST TO BEAM.

TIMBER WALLScale: 1:101

MA

X. 6

00

ENGINEERED WOOD FIBRE, TYP.

EXISTING SUBGRADE OR FILL

50mm x 150mm HORIZONTAL TIMBERS

DEADMAN AT 1800mm O.C.

380

50

TIMBER PLUG

6mm REBAR STAKE TO SECURE TIMBERS TOGETHER

TIMBER TIE BACK BEHIND at 180mm O.C

FILTER FABRIC

PORT HOLES AT1800mm O.C.

DEADMAN AT 1800mm O.C.

TIMBER TIE BACK BEHIND at 180mm O.C

DRAIN ROCK

150

NOTES:

1. TIMBER TO BE ACQ-TREATED SMOOTH INCISED END-SIZED NOMINAL TIMBERS.

2. ALL FASTENERS ON ACQ-TREATED TIMBER TO BE STAINLESS STEEL.

3. FASTENERS ON EXPOSED TIMBER TO BE COUNTER-SUNK.

TIMBER DECK - CONNECTION TO GRADEScale: 1:5

5

150mm x 150mm POST

GROWING MEDIUM TO TOP-UP ROOTS BELOW DECK

EXISTING TIMBER WALL

EXISTING SUBGRADE

EXISTING TREE ROOTS TO BE AVOIDED


NOTE:ADJUST FINAL PLACEMENT TO AVOID TREE ROOTS.

DETAILS

18

067

DET

AIL

S.vw

x

AS SHOWN

Scale in Meters

NORTH ARROW

CHARLESON PARK PLAYGROUND UPGRADE

COPYRIGHT OF THIS DRAWING IS OWNED BY THE CITY OF VANCOUVER BOARD OF PARKS AND RECREATION ("PARK BOARD"). THIS DRAWING MAY NOT BE PRODUCED IN WHOLE OR IN PART WITHOUT THE PRIOR WRITTEN CONSENT OF THE PARK BOARD PLANNING DEPARTMENT ("STAFF"). THIS DRAWING MUST NOT BE SCALED. THE CONTRACTOR/CONSULTANT ("CONTRACTOR") RETAINED BY THE PARK BOARD TO CONDUCT THE WORK DEPICTED IN THIS DRAWING SHALL VERIFY ALL DIMENSIONS, DATUMS AND LEVELS PRIOR TO COMMENCEMENT OF WORK. THE CONTRACTOR SHALL REQUEST CLARIFICATION OF ANY ERRORS OR DISCREPANCIES AND SHALL NOTIFY STAFF OF ANY ERRORS OR OMISSIONS IN THIS DRAWING. FAILURE TO OBTAIN CLARIFICATION OR TO NOTIFY STAFF OF ERRORS OR OMISSIONS WILL RENDER THE CONTRACTOR RESPONSIBLE FOR ANY RESULTING IMPROPER WORK AND FOR THE COST OF ANY RECTIFICATION DUE TO SUCH IMPROPER WORK. VARIATIONS AND MODIFICATIONS TO THIS DRAWING AND/OR TO THE WORK SHOWN ON THIS DRAWING SHALL NOT BE CARRIED OUT WITHOUT THE PRIOR WRITTEN PERMISSION OF STAFF.

SEAL OR STAMP

CONSULTANT OF RECORD (NO LOGO)

PROJECT

ISSUED FOR REV DATE %

50% Tender 15/02/19

DRAWN BY CHECKED BYKYJS/TA

DRAWING

SHEET

L5.04

PWL PARTNERSHIP LANDSCAPE ARCHITECTS INC

ISSUED FOR REV DATE %

50% Tender 15/02/19

75% Tender 03/04/19

95% Tender 16/05/19

100% Tender Review 09/08/19

Issued for Tender 09/01/20

ITT PS20200041

jsept

Text Box

LSK 02

ITT PS20200041

invitation to tender “itt” no. ps20200041 contractor … · 150mm x 150mm post growing medium...

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