January 27, ADD: the same NAME OF VENDORR SIGNATORY DATE. V5Y 1V4 Canada. Vancouver, Page 1 of 1 City of Vancouver Chain Management

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1 FINANCE RISK AND BUSINESS PLANNING Supply Chain Management INVITATION TO TENDER ITT PS CONSTRUCTION SERVICES FOR NEW FIELD HOUSE AT OAK MEADOWS PARK ADDENDUM NO. 1 January 27, RE: Consultant ss Addendum to the Specifications ADD: Addendum No. 1 from Bruce Carscadden Architect Inc.. dated January 25, 2016 attached hereto, to the Specifications. This addendum must be completed, and attached to the Form of Tender. If the Tenderer has already submitted its Tender, this addendum shall be submitted to the Supply Chain Management Office, City of Vancouver, 453 West 12 th Avenue, Vancouver, British Columbia, Canada, V5Y 1V4, (Courier Delivery and Drop off is at thee Informationn Desk, Main Floor Rotunda of the same address), prior to the Closing Time: 3:00 pm Vancouver Time, Thursday, February 11, 2016 in an envelope clearly marked Addendum No. 1 to Invitationn to Tender No. PS : Construction Services for New Field House at Oak Meadows Park. NAME OF VENDORR SIGNATURE OF AUTHORIZED SIGNATORY DATE Page 1 of 1 City of Vancouver Finance, Risk and Business Planning - Supply Chain Management 453 West 12th Avenue Vancouver, British Columbia V5Y 1V4 Canada tel: fax: website: vancouver.ca

2 F I E L D H O U S E A T A D D E N D U M N O. 1 O A K M E A D O W S P A R K 2 5 J a n u a r y CITY OF VANCOUVER P a g e 1 ADDENDUM NO. 1 This addendum is issued prior to closing bids to provide revisions, clarifications, and additions to the work. TABLE OF CONTENTS 1. TABLE OF CONTENTS REVISIONS 2. ARBORIST REPORT 1. TABLE OF CONTENTS REVISIONS 1.1 REVISE table of contents per the enclosed. END OF ADDENDUM NO JANUARY 2016 bruce carscadden ARCHITECT inc.

3 F I E L D H O U S E A T TABLE OF CONTENTS O A K M E A D O W S P A R K CITY OF VANCOUVER Page 1 Division Division Instruction to Bidders Refer to City of Vancouver (CoV) Invitation to Tender (ITT) General Requirements PAGES General Instructions Summary of Work Construction Progress Documentation Submittal Procedures Quality Requirements Temporary Facilities and Controls Product Requirements Execution and Closeout Requirements Cleaning and Waste Management Project Record Documents Site Preparation and Grading (from City of Vancouver) 1 7 Division Existing Conditions Selective Site Demolition (City of Vancouver) 1 5 Division Concrete Concrete Finishes 1 4 Division Masonry Unit Masonry refer to Structural Drawings 1 9 Division Metals Metal Fabrications 1 4 Division Wood, Plastics and Composites Rough Carpentry Glue-Laminated Construction refer to structural drawings Finish Carpentry Architectural Woodwork 1-5 Division Thermal and Moisture Protection Bituminous Dampproofing Thermal Insulation Air/Vapour Barriers Membrane Roofing Flashing & Sheet Metal Sheet Metal Roofing Joint Sealants 1 3 bruce carscadden ARCHITECT inc.

4 F I E L D H O U S E A T TABLE OF CONTENTS O A K M E A D O W S P A R K CITY OF VANCOUVER Page 2 Division Openings Hollow Metal Doors and Frames Aluminum Entrances and Storefront Finish Hardware Glass Glazing 1 6 Division Finishes Gypsum Board Systems Painting Finishes List 1 2 Division Specialties Miscellaneous Specialties 1 4 Division Earthwork Excavation and Backfill (City of Vancouver) 1 7 Division Exterior Improvements Tree Protection (City of Vancouver) Growing Medium (City of Vancouver) 1 13 Appendix A Appendix B Geotechnical Assessment Oak Meadows Park Amenities Improvement by Stantec Consulting Ltd., 24 July Arborist Report Oak Meadows Park Sports Field Amenity Improvements by, 15 September END OF TABLE OF CONTENTS January 2016 bruce carscadden ARCHITECT inc.

5 September 15 th, 2015 Project: Site Location: Oak Meadows Park Sports Field Amenity Improvements 899 West 37 th Avenue Oak Street), Vancouver, B.C. Thank you, for choosing van der Zalm and associates inc. to provide your professional Project Arborist services for this project. A site review and evaluation of the tree(s) identified on the tree survey provided by the project owner or consultant at the above location has been completed. The site review included identifying and detailing tree type, existing tree condition. The purpose of the report is to assess and report on the tree(s) located at 899 West 37 th Avenue, Vancouver, B.C. in accordance with the City of Vancouver Trees Bylaw If you have any further questions or concerns regarding this report please contact the under signed at: Yours truly, Kelly Koome, Project Arborist ISA Certified Arborist PN 5962A ISA Tree Risk Assessment Qualified

6 ARBORIST REPORT Date: September 15, 2015 Project: Project No.: Client: Site Address: Oak Meadows Park Sports Field Amenity Improvements PR City of Vancouver 899 West 37 th Avenue Oak Street), Vancouver, B.C. Prepared By: Suite 1, Avenue Langley, B.C. Phone: Project Arborist: Kelly Koome ISA Certified Arborist PN 5962A ISA Tree Risk Assessment Qualified Scope of Work van der zalm and associates have been retained by the client to prepare a report to assess the tree(s) located at 899 West 37 th Avenue, Vancouver, BC. The Project Arborist performs a site review entailing identification and visual assessment of the tree(s) on site based on the tree survey provided by the client or representative(s). Provide recommendations for the retention or removal of tree(s) on this site based on the existing site conditions and the proposed use of the site. Mitigation of development impact on the tree(s) has been considered as part of the tree assessment process. Proposed Site Development Construction of Amenity Building - southeast corner of Eric Hamber Sports Field Site Review The Project Arborist conducted a site review and evaluation of the tree(s) located at the above referenced property September 10 th & 14 th. The site review entailed identification and visual assessment of the tree(s) on site based on the tree survey provided by the project owner or representative(s).

7 Environmental Description Image 1 - Google Map image of property surveyed The area surveyed slopes downhill towards the existing parking lot. The trees are a mix of deciduous and coniferous including, Norway Maple, Apple trees and. Many of the trees canopies overhang the existing parking lot. There is no evidence of raptors nests, osprey nests or heron colonies on the site. Image 2 Looking northwest towards parking lot

8 Image 3 Looking west towards Oak Street Image 4 with trunk decay

9 Limitations This report is valid for the day the trees were reviewed. This report is not to be re-printed, copied, published or distributed with out prior approval by van der Zalm + associates. Sketches, diagrams and photographs contained in this report being intended as visual aids, should not be construed as engineering reports or legal surveys. Only the subject tree(s) was inspected and no others. This report does not imply or in any other way infer that other trees on this site or near this site are sound and healthy. The tendency of trees or parts of trees to fall due to environmental conditions and internal problems are unpredictable. Defects are often hidden within the tree or underground. The project arborist has endeavored to use his skill, education and judgment to assess the potential for failure, with reasonable methods and detail. It is the owner s responsibility to maintain the trees and inspect the trees to reasonable standards and to carry out recommendations for mitigation suggested in this report.

10 Table 1 Tree Assessment Data (Yellow flagging tape in field & numbering system based upon Survey Drawing, Sept 5, 2014) Tree # 8A 8B SPECIES Alnus rubra 9 Malus (spp.) Fruiting Apple 10A 10B 10C 11A 11B Alnus rubra Thuja plicata Western Red Cedar Acer platanoides Norway Maple DBH (m) 0.16 / 0.18 / 0.19 Condition Description Location Retain / Remove Removal Reason/ Recommendation Good Co-dominant within stand ROOTS Grafted roots TRUNK (3) Stems joined at base DRIP LINE = 3.50 meters 0.18 Fair Co-dominant within stand CANOPY Broken leader DRIP LINE = 3.50 meters LIVE CROWN RATIO = 60 70% 0.30 Fair Himalayan Blackberry around base TRUNK Multi-stemmed DRIP LINE = 3.00 meters 0.19 / 0.24 / 0.27 Good Co-dominant within stand TRUNK Co-dominant trunks at base. DRIP LINE = 6.00 meters 0.23 Poor Standing Dead Tree Park Remove Remove 0.06 Good Young tree in good condition 0.29 Good Co-dominant within stand DRIP LINE = 4.50 meters LIVE CROWN RATIO =70 80% 0.06 Fair Suppressed within stand DRIP LINE = 3.00 meters LIVE CROWN RATIO = 20 30% Construction Mitigation

11 Tree # 11C 12A 12B SPECIES Acer platanoides Norway Maple Alnus rubra 13 Alnus rubra 14 Alnus rubra 15 Alnus rubra 16 Alnus rubra 17 Alnus rubra DBH (m) Condition Description Location Retain / Remove 0.07 Fair Suppressed within stand DRIP LINE = 2.00 meters 0.12 / 0.15 / / 0.04 Good Fair Co-dominant within stand TRUNK Co-dominant stems at base DRIP LINE = 5.00 meters Suppressed within stand TRUNK Co-dominant near base DRIP LINE = 2.00 meters LIVE CROWN RATIO = 30 40% 0.55 Good Co-dominant within stand TRUNK Multi-stemmed DRIP LINE = 6.00 meters 0.16 / 0.18 Good Co-dominant within stand TRUNK Multi-stemmed DRIP LINE = 6.00 meters 0.17 Good Co-dominant within stand ROOTS Grafted to Tree #16 TRUNK J bend at base DRIP LINE = 5.00 meters 0.49 Good Co-dominant within stand ROOTS Grafted to Tree #15 TRUNK Multi-stemmed DRIP LINE = 5.00 meters 0.43 Good Co-dominant within stand TRUNK Multi-stemmed Removal Reason/ Recommendation

12 Tree # SPECIES 18 Alnus rubra 19 Alnus rubra 20 21A 21B Alnus rubra Alnus rubra 41 Alnus rubra 42 Robinia pseudoacacia Black Locust 63A DBH (m) Condition Description Location Retain / Remove Removal Reason/ Recommendation DRIP LINE = 5.00 meters 0.23 Good Co-dominant within stand DRIP LINE = 5.00 meters 0.29 Good Co-dominant within stand DRIP LINE = 5.20 meters 0.25 Fair Co-dominant within stand TRUNK Resin flow for (3) meters vertically from base. DRIP LINE = 3.30 meters LIVE CROWN RATIO = 70 80% 0.11 / 0.12 / 0.18 / 0.19 Fair Co-dominant within stand TRUNK Multi-stemmed CANOPY Drought stressed DRIP LINE = 7.00 meters 0.20 Good CANOPY Overhangs gravel pedestrian pathway and vehicle fire lane DRIP LINE = 5.50 meters 0.18 Good CANOPY Overhangs gravel pedestrian pathway DRIP LINE = 6.00 meters 0.11 / 0.21 / 0.24 Fair CANOPY - Overhangs gravel pedestrian pathway TRUNK Injury with decay near base DRIP LINE = 4.50 meter 0.21 Fair Co-dominant within stand TRUNK Resin flow on lower bole DRIP LINE = 2.50 meters LIVE CROWN RATIO = 80 90% Park Retain If trunk or upper limbs fail, target is Pedestrian Pathway. Recommend further testing to determine extent of decay in trunk.

13 Tree # 63B 63C 63D 63E 63F 64A 64B 64C SPECIES Malus (spp.) Fruiting Apple Malus (spp.) Fruiting Apple Acer platanoides Norway Maple Malus (spp.) Fruiting Apple Malus (spp.) Fruiting Apple DBH (m) Condition Description Location Retain / Remove 0.08 Fair Suppressed by adjacent TRUNK Mechanical caused injury on north side of trunk facing parking area. DRIP = 2.50 meters 0.06 Fair TRUNK A few injuries on lower bole DRIP = 2.00 meters 0.09 Fair TRUNK Co-dominant near base CANOPY - Overhangs Parking Lot DRIP = 2.50 meters 0.03 Fair TRUNK Leaning predominantly north CANOPY - Overhangs Parking Lot DRIP = 2.00 meters 0.06 / 0.07 Fair TRUNK Co-dominant stems near base CANOPY - Overhangs Parking Lot DRIP = 2.00 meters 0.29 Good Co-dominant within stand DRIP LINE = 4.00 meters LIVE CROWN RATIO = 60 70% 0.13 Fair Co-dominant within stand DRIP LINE = 2.50 meters LIVE CROWN RATIO = 80 90% 0.15 Fair Co-dominant within stand TRUNK Resin flow on lower bole DRIP LINE = 3.00 meters LIVE CROWN RATIO = 60 70% Removal Reason/ Recommendation

14 Tree # 64D 65A 65B SPECIES Alnus rubra Alnus rubra 66 67A 67B 68A 68B DBH (m) Condition Description Location Retain / Remove 0.14 Fair Co-dominant within stand TRUNK Resin flow on lower bole DRIP LINE = 3.00 meters LIVE CROWN RATIO = 60 70% 0.22 Good Co-dominant within stand CANOPY - Overhangs Parking Lot DRIP = 6.00 meters 0.23 / 0.22 / 0.25 / 0.13 / 0.22 Good Co-dominant within stand TRUNK Multi-stemmed DRIP LINE = 5.00 meters 0.29 Good Co-dominant within stand TRUNK Resin flow on lower bole from previous cuts DRIP LINE = 3.00 meters LIVE CROWN RATIO = 80 90% 0.29 Good Co-dominant within stand TRUNK Resin flow on lower bole CANOPY Birds nest at (4) meters DRIP LINE = 3.00 meters LIVE CROWN RATIO = % 0.18 Fair Co-dominant within stand DRIP LINE = 2.50 meters LIVE CROWN RATIO = 60 70% 0.22 Good Co-dominant within stand TRUNK Resin flow on lower bole from previous pruning cuts DRIP LINE = 4.00 meters LIVE CROWN RATIO = 70 80% 0.11 Fair Suppressed within stand DRIP LINE = 2.50 meters LIVE CROWN RATIO = 50 60% Removal Reason/ Recommendation

15 Tree # SPECIES 69 Alnus rubra 70 Alnus rubra 83 Alnus rubra 84 85A 85B 86 87A Alnus rubra DBH (m) 0.08 / 0.13 / 0.16 Condition Description Location Retain / Remove Good Co-dominant within stand DRIP LINE = 4.00 meters 0.42 Good Co-dominant within stand TRUNK Multi-stemmed DRIP LINE = 5.00 meters 0.15 / 0.16 / 0.17 Fair SEE IMAGE 4 TRUNK Co-dominant stems with smallest trunk in POOR condition. Extensive decay DRIP LINE = 5.00 meters 0.28 Good Co-dominant within stand DRIP LINE = 5.00 meters LIVE CROWN RATIO = 70 80% 0.22 Fair Co-dominant within stand DRIP LINE = 3.00 meters LIVE CROWN RATIO = 30 40% 0.16 Fair Co-dominant within stand TRUNK Resin flow from pruning cuts on lower bole DRIP LINE = 4.00 meters LIVE CROWN RATIO = 30 40% 0.23 Fair Co-dominant within stand TRUNK Resin flow from pruning cuts on lower bole DRIP LINE = 5.00 meters LIVE CROWN RATIO = 60 70% 0.23 / 0.25 / 0.25 Good Co-dominant within stand TRUNK Co-dominant at base DRIP LINE = 7.00 meters Removal Reason/ Recommendation Park Retain Remove smallest stem (red flagging tape around trunk)

16 Tree # 87B SPECIES Acer platanoides Norway Maple DBH (m) Condition Description Location Retain / Remove Removal Reason/ Recommendation 0.09 Good Suppressed within stand DRIP LINE = 5.00 meters

17 Tree Preservation and Replacement Per Section 6.3 of City of Vancouver Trees Bylaw For each tree a person removes from a site, the owner of the site must plant: a) one replacement tree described in Part 1 of Schedule D; b) two replacement trees described in Part 2 of Schedule D; or c) a tree or trees acceptable to the Director of Planning; except in the case of a sloping site, the owner may plant one replacement tree set out in either Part 1 or Part 3 of Schedule D. Table 2: Species Summary of Surveyed Area Tree Species Retain Remove Deciduous Trees 19 Norway Maple 4 Black Locust 1 Apple Tree 5 Coniferous Trees 19 Western Red Cedar 0 1 Total 48 1 As noted in Table 1 and Image 3, there are a number of trees whose canopy overhangs the existing parking lot by (5) to (6) meters. Trucks and cars currently park below this canopy without causing any damage to the canopy or adjacent trees. During Construction, the area is off-limits to larger trucks whose height may damage the adjacent canopy. Please see the Tree Protection Drawing for the location of Tree Protection Fencing and follow the guidelines as outlined in Appendix A and the Tree Protection Diagram.

18 Appendix A: Construction Activity Around Tree Protection Zone City of Vancouver Protection of Trees By-law Section Submission of survey Protection of Trees During Construction With an application for issuance of a development permit or building permit, the owner or the applicant on behalf of the owner, must submit a survey, certified correct by a BC land surveyor who is a member of the Association of British Columbia Land Surveyors that shows: (a) each tree located on the site, on adjacent property within two metres of any boundary of the site, and on any street adjacent to the site; (b) the tree grade or tree elevation for each tree referred to in subsection (a); (c) the drip line for each such tree; and (d) the location, height, and diameter of each stump on the site. 7.2 Submission of arborist s report With an application for issuance of a development permit or building permit, the owner or the applicant on behalf of the owner, must also submit a report, certified correct by an arborist, that sets out: (a) the condition, size, and species of trees on the site; (b) the impact of the proposed development on the health of trees on the site, and potential hazards to them during or after construction; (c) development limitations; (d) recommended construction practices to protect trees during and after construction; and (e) an undertaking from the arborist and the owner to the city that the arborist will perform or supervise performance of: (i) pre-construction treatment of trees including root and branch pruning, (ii) regular on-site inspections during construction, and will report any offence against this By-law on the site to the Director of Planning or on a street adjacent to the site to the City Engineer, (iii) restorative landscape treatment including soil renovation, (iv) selection and planting of any replacement trees required under this By-law, and (v) a post construction inspection of the site, and will prepare a report, certified correct by the arborist, for submission, in a timely manner, to the Director of Planning. 7.3 Exception for interior alterations If a development permit or building permit is for alterations only to the interior of a building, and, in the opinion of the Director of Planning, none of the work, or storage, transport, or removal of materials, will affect any tree located on the site, sections 7.1 and 7.2 do not apply. 7.4 Demolition, excavation, or construction A person must not commence or carry on demolition, excavation, or construction on a site, except in accordance with the requirements of this By-law, and any applicable tree permit. 7.5 The owner shall: a) install a protection barrier for each retention tree located on the site, on adjacent property within two metres of any boundary of the site and on any street adjacent to the site, before demolition, excavation or construction begins on a site; b) ensure that the protection barrier meets the requirements for a protection barrier in this By-law, throughout the course of demolition, excavation and construction on the site; and c) maintain the protection barrier in good repair continuously throughout the course of demolition, excavation and construction on the site.

19 7.6 No construction without protection barrier No person shall carry out demolition, excavation or construction on a site unless there are protection barriers in place as required by this By-law. 7.7 Location of protection barrier Each protection barrier referred to in section 7.5 must, if the tree is on adjacent property within two metres of any boundary of the site, extend into the site from the nearest boundary of the adjacent site by the greater of two metres or such other distance determined by an arborist or the Director of Planning to be necessary to protect the tree and the adjacent property. 7.8 Requirements for trees on boulevards In addition to the requirements of sections 7.5 and 7.6, before and during demolition, excavation, or construction on a site, the owner of the site must: (a) comply with the requirements of the City Engineer with respect to any tree on a boulevard in a street adjacent to the site; (b) not prune, move, or otherwise disturb such tree unless the Park Board has given its prior written permission; (c) ensure that each protection barrier: (i) allows for free and clear passage of pedestrians on the surrounding portion of the boulevard and on the sidewalk adjacent to the boulevard, (ii) allows for clear visibility of fire hydrants, driveway accesses, and crosswalks, (iii) is 0.6 m or more from the curb to allow for the opening of car doors, and (iv) is 0.3 m or more from the edge of any sidewalk located within a grass boulevard. 7.9 Issuance of building permit Despite the Zoning and Development By-law and Building By-law, a person is not entitled to a permit for demolition, excavation, or construction on a site, except if: (a) the Chief Building Official has inspected and approved each protection barrier on the site or on adjacent property; and (b) the City Engineer has inspected and approved each protection barrier on a street Condition of protection barriers and retention trees A person who installs a protection barrier under this Section 7 must: (a) care for the retention tree within the tree protection area, during the construction process, including sufficient watering, particularly if excavation has disturbed the tree root system; (b) attend to proper root pruning and care for the remaining root system; (c) to minimize root damage, soil erosion and tree disturbance, wrap a temporary root curtain around the root zone to retain and protect the exposed area, which root curtain is to consist of heavy wire mesh or similar material lined with burlap and supported by posts; (d) use backfill to ensure that none of the roots remain exposed; (e) if required by the Director of Planning, tunnel rather than trench when installing underground utilities and drainage lines, which technique includes boring a hole under or through the root system with minimum disturbance, and carry out any excavation within the tree protection area to accommodate underground installations, including services and footings, by hand; and (f) maintain such protection barrier, repair any damage to it, and not alter or remove it until construction is complete No encroachment A person must not encroach into a tree protection area, with or without vehicles, and must not store anything in such area until construction is complete.

20 Tree Protection Diagram

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