Parks Canada Agency Drag Lake Dams Rehabilitation
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PARKS CANADA AGENCY DRAG LAKE DAMS REHABILITATION SPECIFICATIONS Rev. 2 - Issued for Tender June 17, 2016 Prepared by KGS Group TABLE OF CONTENTS Section Number Title 01 11 00 Summary of Work 01 14 00 Work Restrictions 01 22 01 Measurement and Payment 01 31 19 Project Meetings 01 33 00 Submittal Procedures 01 35 29 Health and Safety Requirements 01 35 43 Environmental Procedures 01 45 00 Quality Control 01 52 00 Construction Facilities 01 56 00 Temporary Barriers and Enclosures 01 71 00 Examination and Preparation 01 74 11 Cleaning 01 77 00 Closeout Procedures 01 78 00 Closeout Submittals 02 41 19 Selective Structure Demolition 03 10 00 Concrete Forming and Accessories 03 20 00 Concrete Reinforcing 03 30 00 Cast-in-Place Concrete 03 37 26 Underwater Placed Concrete 05 12 23 Structural Steel 05 51 29 Metal Stairs 31 11 00 Clearing and Grubbing 31 68 13 Post-Tensioned Anchor 35 20 21 Cofferdam and Dewatering 14-1538-002 Section 01 11 00 June 2016 SUMMARY OF WORK Drag Lake Dam Rehabilitation Page 1 Part 1 General 1.1 RELATED REQUIREMENTS .1 Section 01 14 00: Work Restriction .2 Section 01 33 00: Submittal Procedures .3 Section 01 35 43: Environmental Procedures .4 Section 01 45 00: Quality Control .5 Section 01 71 00: Examination and Preparation 1.2 DEFINITIONS .1 Departmental Representative: Parks Canada Agency (PCA) .2 Consultant: KGS Group .3 Contractor: General Contractor who assumes the role of Constructor 1.3 WORK COVERED BY CONTRACT DOCUMENTS .1 Work of this Contract comprises rehabilitation of Drag Lake North Dam and South Dam, located on the Drag River in the Burnt River watershed at the outlet of Outlet Bay (on Drag Lake), near Haliburton, Ontario. .2 The Construction Work includes but is not limited to the following: .1 Temporary Site Access; .1 Access to staging areas and structures .2 Design, construct, and maintain temporary staging areas; .3 Provide public/recreational traffic control/detours; .4 Provide drainage, sediment and erosion control, and other environmental protection as specified in the Basic Impact Assessment; .5 Obtaining regulatory permits and certificates of authorization and approvals; .6 Design, install, and maintain dewatering of work area, including supply of the dewatering system and cofferdam construction (applicable only if Contractor elects to construct cofferdam or other means in lieu of using barge); .7 Protection of existing adjacent structures/properties, services, and utilities; .8 Relocate or temporarily remove existing services and utilities as required; .9 Clearing and grubbing of localized tree and vegetation growth; .10 Installation of post-tensioned anchors, load cells, and cables; .11 Removal of sediment and debris from river bed upstream of sluiceways as required to facilitate concrete repairs and concrete sill beams installation; .12 Relocation of rocks from river bed as required to avoid interference with safety booms during low water level and to permit mobilization, operation, and demobilization of construction barge(s). Rocks to be moved to a similar water depth adjacent to the existing site; .13 Concrete rehabilitation includes: 14-1538-002 Section 01 11 00 June 2016 SUMMARY OF WORK Drag Lake Dam Rehabilitation Page 2 .1 Refacing of sluiceway structures; .2 Installation of concrete topping on deck; .3 Localized repairs and grout injection; .4 Replacement of existing steel gains; .5 Installation of jacking pins; .6 Installation of steel liner; .7 Underwater concrete repair; .8 Replacement of existing steel grating above intake (South Dam only); .9 New concrete block under penstock .10 Surface preparation and painting of existing stoplog rails .14 Installation of service gains on upstream face of piers; .15 Installation of new steel walkways and stairs with associated concrete foundations; .16 Replacement of guardrails; .17 Modification and extension of safety booms and installation of new in-water and on-shore anchors; .18 Installation of safety signage; .19 Supply and testing of five new winches complete with breaker, wire rope, hook and handle; .20 Fabrication and installation of winch support frames; .21 Removal and disposals as required to facilitate the works stated above; .22 Removal of temporary works; .23 Site reinstatement and restoration. 1.4 TIME OF COMPLETION .1 Commence work in accordance with notification of acceptance of offer and complete the work within the dates outlined in the contract. 1.5 CONTRACT METHOD .1 Construct Work under combined lump sum and unit price contract. 1.6 EXAMINATION OF SITE .1 Visit the site before submitting tender. Examine site, adjacent premises, means of access and egress. Investigate and be fully informed of the nature and extent of the work required, difficulties in performing the work, facilities available for delivery and placing of materials. .2 Be completely familiar with every detail and intent of these specifications and scope of work to be performed, environmental restrictions, and all regulatory requirements governing the Work. .3 The Contractor is advised that all elevations and dimensions shown on the plans are approximate only. The Contractor will be required to verify all existing dimensions and grades before preparing and submitting shop drawings and before planning and 14-1538-002 Section 01 11 00 June 2016 SUMMARY OF WORK Drag Lake Dam Rehabilitation Page 3 undertaking any construction work. The Contractor will immediately report all discrepancies, in writing, to the Departmental Representative. .4 Refer to Section 01 71 00 for additional requirements. 1.7 WORK BY OTHERS .1 The Contractor shall for the purpose of the Ontario Occupational Health and Safety Act and Regulations for Construction Projects, and for the duration of the Work of the Contract: .1 Assume the role of Constructor in accordance with the Authority Having Jurisdictions. 1.8 SCHEDULING .1 Within ten (10) days of award of the Contract, provide Departmental Representative with a copy of the construction schedule. .1 Progress schedule must include the quantity of work to be accomplished within each two (2) week timeframe. .2 Ensure that it is understood that award of Contract or time of beginning, rate of progress, Certificate of Substantial Performance and Certificate of Completion as defined times of completion are of essence of this contract. .3 Commencement of work will not be permitted until a detailed schedule, has been reviewed by Departmental Representative, and revised and resubmitted by the Contractor. .1 No progress payments will be made until the construction progress schedule is approved. .2 Submit together with the progress schedule a cost breakdown for each lump sum and unit price payment items. .4 The Contractor shall submit an updated progress schedule with all progress claims or upon requested, within ten (10) working days .5 Resubmit the schedule with all revisions made to show the progress of the work and to show any changes which are required to meet the approved completion required to meet the approved completion dates. .6 Do not make changes to the approved schedule, without Departmental Representative’s approval. .7 The requirements of Section 01 33 00 apply to the construction progress schedule. .8 Notify Departmental Representative at least forty-eight (48) hours prior to work being carried out during “off-hour” periods. .9 Provide a schedule for the submission of shop drawings, plans and procedures. .10 If progress of work should fall behind, take steps required to bring work back to schedule. Do not change schedule without Departmental Representative’s approval. .1 Weather related delays with their remedial measures will be discussed and negotiated. 14-1538-002 Section 01 11 00 June 2016 SUMMARY OF WORK Drag Lake Dam Rehabilitation Page 4 1.9 WORK SEQUENCE .1 Construct Work in stages to allow the Owner to operate one of the two dams for water diversion during construction. .2 Plan and schedule in-water work and any tree removal work as to not interfere with restricted time periods as outlined in Section 01 14 00. .3 If barge is used, plan and schedule works to avoid mobilizing barge during low water level period. Refer to Section 01 14 00 Work Restrictions. .4 Maintain fire access/control to work area and adjacent properties at all time. 1.10 CONTRACTOR USE OF PREMISES .1 Unrestricted use of site (North and South Dams) until Substantial Performance, subject to Parks Canada Agency (PCA) needs for gate and stoplog operations when necessary. .2 Limit use of staging areas as stated below: .1 Staging Area 1 is owned by the municipality, and is used by school bus to turn- around. It may be used for loading/unloading of construction materials only outside of school bus schedule. Parking, trailers, and storage of construction materials are not permitted in Staging Area 1. .2 Staging Area 2 is privately owned, it maybe used for construction trailers, loading/unloading of construction materials, parking, and storage of construction materials. .3 Staging Area 3 is privately owned. .1 Minimize the extent of tree removal as required for construction of walkway. .2 Obtain approval from Departmental Representative for the extent of tree removal, and the amount and type of construction materials or equipments to be stored on the island. .3 Contractor shall take necessary measures to minimize the impact on the environment of the island. .4 Allow public/recreational access at the public boat launch (Staging Area 4), obtain applicable permit from local authority and Departmental Representative to use Staging Area 4 for loading/unloading of construction equipments and materials. .3 Obtain and pay for use of additional storage or work areas needed for operations under this Contract, if applicable. 1.11 OWNER FURNISHED ITEMS .1 Owner Responsibilities: .1 Supply of the following items: .1 Stoplogs; .2 Safety booms; .3 Dam safety buoy (above in-water anchor of safety booms). .2 Delivery of owner furnished items to staging area.