Bids Are Invited For Asphalt Overlay & Sidewalk Replacement 2023

Asphalt Overlay & Sidewalk Replacement 2023 . Asphalt Overlay & Sidewalk Replacement Program 2023 5.21 Scope Of Work The Scope Of Work For This Project Shall Include But Is Not Limited To The Following: Subgrade Excavation Asphalt And Concrete Removals Cold Milling Granular Base Course Asphalt Concrete Pavement Concrete Works Unless Otherwise Specified, The Contractor Shall Supply All Materials Necessary To Complete The Work. A Complete Job Is Called For. Therefore, Any Labour, Material, Equipment, Tools Or Incidental Item Not Specifically Mentioned, But Necessary For Completeness Will Be Considered Incidental To The Work And No Separate Or Additional Payment Will Be Made. 5.22 Catch Basin Repair The Contractor Will Be Responsible For Cleaning Out All Catch Basins 48 Hours Prior To Beginning Of Construction. A Notification Shall Be Sent To The Engineer Upon Completion Of The Cleaning. All Manholes Shall Be Inspected Prior To And After Paving. The Contractor Shall Give 24 Hours’ Notice To The Engineer Prior To Paving For Scheduling The Inspection. The Contractor Is Responsible For All Catch Basin And Manhole Repairs, Including Supply Of Grade Rings. Catch Basin And Manhole Repair Types Are As Follows: Type 1 - Remove Existing Frame And Cover And Grade Rings. Adjust Rim To Proposed Grade With New Grade Rings And Install New Or Existing Frame And Cover As Directed By The Engineer. Type 1B - Remove Existing Slab Top Frame And Cover And Grade Rings To Fix Infiltration Between Slab Top And Barrel Sections. Re-Install Existing Slab Top And Existing Frame And Cover As Directed By The Engineer. Type 2 - Remove Existing Frame And Cover, Grade Rings And Slab Top (Cb) Or Conical Top (Mh). Install New Slab Top Or Conical Top, Adjust Rim To Proposed Grade With New Grade Rings, And Install New Or Existing Frame And Cover As Directed By The Engineer. Type 3 - Remove Existing Frame And Cover, Grade Rings, Slab Top (Cb) Or Conical Top (Mh), And Barrel Sections. Install New Barrel Sections, Slab Top Or Conical Top, Adjust Rim To Proposed Grade With New Grade Rings And Install New Or Existing Frame And Cover As Directed By The Engineer. Type 4 - Remove Frame And Cover, Grade Rings, Slab Top (Cb) Or Conical Top (Mh), And Entire Barrel Sections And Base. Install New Barrel Sections And Base, Slab Top Or Conical Top, Adjust Rim To Proposed Grade With New Grade Rings, And Install New Or Existing Frame And Cover As Directed By The Engineer. Repairs Are To Consist Of The Following, Where Necessary (May Not Include All):  Removal Of Adjacent Concrete Curb, Curb/Gutter, Curb/Gutter/Sidewalk To Match Existing Elevations.  Replacement Of Rubber Neck Sealant.  New Catch Basin Installations Will Require An Inside Barrel Diameter Of 900 Mm.  When Replacing Complete Barrel, Also Replace 2.0M Of Lead Line At The Same Inside Diameter, If Needed Use Furnco Fitting Or Equivalent.  Replacement Of Catch Basin Or Manhole Frame And Cover.  Re-Grout The Existing Outlet Pipe.  The Town May, At Its Discretion, Request A Sliding Top Sleeve Be Installed Prior To Placement Of The Catch Basin Frame And Cover. The Sleeve Would Be Installed Inside The Existing Barrel And Formed Into The Curb And Gutter Concrete. 5.22.1 Measurement And Payment Payment Shall Be Full Compensation Based On The Unit Prices Provided In The Unit Price Schedule. Tying Into The System Shall Represent Either Cutting Into An Existing Manhole Or Connecting To An Existing Storm Pipe. The Unit Price Shall Include Supply And Installation Of All Materials Necessary To Complete The Work Including Benching, Furnco Fittings (Or Equivalent), Concrete And/Or Grout, But Not Limited To The Aforementioned Items. The Unit Price Shall Also Include The Proper Disposal Of All Materials And Not To Be Reused In The Installations. The Supply And Use Of All Labour, Equipment, Materials, And Tools Shall Be Considered Incidental To The Work And No Separate Payment Shall Be Made. Payment For Storm Catch Basin And Manhole Repairs Will Be Per Unit And Shall Be Considered Full Compensation For The Procurement Of All Permits And Processes, The Supply And The Installation Of All Materials, The Supply And Use Of All Equipment, The Supply And Use Of All Labour And Supervision, And Coordination With Utility Companies, All Being Necessary To Complete The Work To Specification At The Construction Site. 5.23 Full Depth Repair Full Depth Repair Work Shall Include But Not Be Limited To:  Waste Excavation  Biaxial Geogrid – Supply And Install  Non-Woven Geotextile (Type B) – Supply And Install  Granular Base Course  Asphalt Concrete Pavement The Contractor Shall Complete The Full Depth Repair Work As Shown On The Drawings Or As Directed By The Consultant. Each Portion Of Work Shall Be Completed In Accordance With The Standards And Specifications Detailed Within This Tender. 5.23.1 Waste Excavation Materials To Be Removed For Waste Excavation Shall Be Neatly Saw Cut, Excavated And Removed As Shown On The Drawings Or As Directed By The Consultant. The Contractor Shall Assume Ownership Of Any Excavated Subgrade, Granular Or Asphalt Material And Shall Remove It From The Roadway To His Own Storage Or Disposal Site Or Otherwise Dispose Of The Material To The Satisfaction Of The Consultant. Saw Cutting And Disposal Of Said Material Will Be Considered Incidental To The Work And No Separate Or Additional Payment Will Be Made. Any Additional Materials That May Be Necessarily Removed In Order To Achieve The Required Subgrade Depth Will Be Considered Incidental To The Work Included In Waste Excavation. Written Approval From The Owner Of The Disposal Site, Including Proof Of The Disposal Site Cleanup, Shall Be Submitted To The Consultant Before Full Payment For This Work Will Be Made. 5.23.2 Biaxial Geogrid – Supply And Install The Contractor Shall Supply And Install Biaxial Geogrid Approved By The Consultant And Meet The Following Material Specifications: Aperture Dimensions2 (Mm (In)) 25 (1.0) 33 (1.3) Minimum Rib Thickness2 (Mm (In)) 0.76 (0.03) 0.76 (0.03) Tensile Strength @ 2% Strain3 (Kn/M (Lb/Ft)) 4.1 (280) 6.6 (450) Tensile Strength @ 5% Strain3 (Kn/M (Lb/Ft)) 8.5 (580) 13.4 (920) Ultimate Tensile Strength3 (Kn/M (Lb/Ft)) 12.4 (850) 19.0 (1,300) 1. Unless Indicated Otherwise, Values Shown Are Minimum Average Roll Values Determined In Accordance With Astm D4759-02. Brief Descriptions Of Test Procedures Are Given In The Following Notes. 2. Nominal Dimensions. 3. True Resistance To Elongation When Initially Subjected To A Load Determined In Accordance With Astm D6637-01 Without Deforming Test Materials Under Load Before Measuring Such Resistance Or Employing “Secant” Or “Offset” Tangent Methods Of Measurement So As To Overstate Tensile Properties. Material Installation And Fill Placement The Beginning Of A Biaxial Geogrid Installation Shall Be Anchored In Place With Washers & Pins Or Heavy Gauge Staples. The Biaxial Geogrid Shall Be Installed With A Minimum Overlap Of 0.3 M At Any Seam. The Overlap Shall Be Maintained By Anchoring The Mat To The Subgrade Or Using Connection Ties Between Mats. The Overlap Shall Be Shingled To Reduce The Possibility Of Separation With Fill Placement. Fill Shall Be Placed On The Biaxial Geogrid In A Manner That Minimizes The Formation Of A Wave In The Sheets Of Geogrid In Front Of The Advancing Fill. Wave Formation In The Geogrid Mat May Require The Contractor To Use Alternate Fill Placement Or Anchoring/Connection Methods. Tracked Equipment Shall Not Travel Directly On The Geogrid. At The Contractor’S Risk, Rubber-Tired Equipment May Be Allowed To Travel Directly On The Geogrid At Very Low Speeds. Any Damaged Geogrid Shall Be Removed Or Repaired To The Satisfaction Of The Consultant. Biaxial Geogrid Shall Be Placed In Conjunction With Woven Geotextile After Excavation Of Deleterious Materials From The Roadway. Supply And Installation Of Biaxial Geogrid, Lapping Of The Geogrid, Stapling Or Pinning, Connection Ties Will Be Considered Incidental To The Work. The Estimated Quantities Provided For Biaxial Geogrid Does Not Include Adjustment For Overlapping Material And No Additional Payment Will Be Made. 5.23.3 Granular Base Course The Contractor Shall Supply And Place Granular Base Course As Shown On The Drawings Or As Directed By The Consultant. Placement: The Granular Base Course Material Shall Not Be Placed Until The Underlying Subgrade Or Granular Subbase Course Has Been Inspected And Approved By The Consultant. The Subgrade Or Subbase Shall Be Shaped To Cross-Section Shown On The Drawings, Or As Directed By The Consultant, And Shall Be Maintained Free Of Ruts, Waves, And Undulations By Whatever Means Are Necessary. Compaction: The Material Shall Be Compacted By Rolling With A Pneumatic Tired Or Vibrating Roller Of A Type Approved By The Engineer. The Material Shall Be Compacted At The Optimum Moisture Content To Ninety-Eight Percent (98%) Standard Proctor Density. Shaping And Finishing: A Motor Grader Shall Be Used In Conjunction With Compaction Equipment To Keep The Finished Surface Of Each Layer Even And Uniform. The Finished Surface Of The Granular Base Course Shall Conform To The Required Cross Section And Grade As Shown On The Drawings, Or As Directed By The Consultant, Within A Tolerance Of Plus Or Minus 10 Mm. The Granular Base Course Shall Be Uniform And Show No Signs Of Segregation Of The Material Placed. Testing: Field Density, Moisture Content And Sieve Analysis Tests Will Be Carried Out By A Third-Party Engineer To Ensure That The Material Is Satisfactory. Testing Will Be Paid For Under The Cash Allowance Based On Invoices Submitted To The Town. The Frequency Of Field Density And Moisture Content Tests Shall Be Approximately 1 Test Per 100 Linear Metres Of Constructed Roadway, And At Various Locations Offset Left And Right Of Center Line, Or As Directed By The Consultant. The Contractor Will, As The Consultant Requires, Provide A Loaded Gravel Truck With Operator For Visual Proof Rolling Of Soft Spots. The Granular Surface Course Shall Show No Visible Subsidence Of Deflection Under The Wheels Of The Truck. 5.23.4 Measurement And Payment Full Depth Repairs Shall Be Measured In Square Metres For The Thickness Of Repair Specified. Quantities Will Be Calculated From Dimensions Shown On The Design Drawings Or From In-Place Field Measurements For The Work To Be Done. Payment Will Be Made At The Unit Price Bid For “Full Depth Repair” And Shall Include All Work Specified In The Drawings And Specifications. This Payment Will Be Full Compensation For All Necessary Saw-Cuts, Removal And Disposal Of All Waste Material, Including Granular And Asphalt Material, Processing, Hauling And Placing The Material On The Roadway, Supplying Water And Adjusting The Moisture Content, Preparing The Surface The Supply And Application Of Asphalt Material For Prime Coat, Maintaining The Treated Surface, Quality Control, And All Labour, Equipment, Tools And Incidentals Necessary To Complete The Work To The Satisfaction Of The Consultant. No Payment Will Be Made For Work Outside The Project Limits Without Prior Written Approval. Separate Payment Will Not Be Made For Any Material Required To Repair Failures Or Rejected Areas Which Occur In The Granular Base Course. All Costs Associated With The Repair Of Failed Or Rejected Areas Will Be The Responsibility Of The Contractor. 5.24 Asphalt Concrete Pavement The Contractor Shall Submit An Asphalt Mix Design (Mix Type M1, Pg 52-34) To The Consultant For Approval Prior To Construction. The Work Shall Be Performed In Accordance With Section 3.50, Asphalt Concrete Pavement (Eps), Of The “Standard Specifications For Highway Construction”, With The Exception Of The Following Sections: 5.24.1 Joints The Mixture Shall Be Laid So That All Longitudinal Joints Are Made While The First Mat Of The Two Being Laid Is Still Hot. A Narrow Strip Along The Edge Of A Mat That Is Joined With Another Asphalt Mat Shall Be Left Without Rolling Until The Adjoining Mat Has Been Placed Against It. The Joint That Is Formed Shall Be Rolled Immediately After The Adjacent Mat Has Been Placed, To Ensure A Bonding Of The Material While The Asphalt Is Still Hot. Transverse Joints Shall Be Carefully Constructed And Thoroughly Compacted To Provide A Smooth Riding Surface. Joints Shall Be Straight Edged To Assure Smoothness And True Alignment And Shall Be Offset At Least One Metre (1 M) From Joints Of Adjacent Mats. All Concrete Or Metal Structures, Such As Gutters, Manholes, Water Valves Etc., Shall Be Painted With An Approved Bituminous Material Prior To Placing The Asphalt. 5.24.2 Tolerances The Finished Pavement Shall Have The Thickness Specified On The Drawings. Areas Suspected To Be Deficient Shall Be Cored, As Directed By The Consultant, On The Basis Of One (1) Core For Every One Thousand Square Meters (1,000 M²) Of Pavement. At Least One (1) Core Shall Be Taken At The Designated Marshall Location. Should The Asphalt Be Found To Be Deficient In Thickness, The Contractor Will Be Permitted To Take Two (2) Additional Cores In An Effort To Isolate And Confirm The Deficient Areas. The Location Of The Two (2) Additional Cores Shall Be Located No Further Than Halfway Between The Deficient Core And The Next Adjacent Core Or Contract Boundary. The Exact Location Of The Core Locations Are To Be Determined By The Contractor And Approved By The Consultant. The Contractor Shall Be Responsible For All Costs Associated With The Re-Coring Of The Asphalt. Areas Found To Be Twenty Percent (20%) Less Than The Design Thickness Shall Be Repaired At The Contractor’S Expense. No Additional Payment Will Be Made To The Contractor For Greater Thicknesses. The Asphalt Concrete Pavement Shall Be Placed As To Be 10Mm Higher Than The Lip Of Gutter. The Contractor Shall Fill All Core Holes Within A Maximum Period Of 24 Hours. 5.24.3 Densities Densities Shall Be Based On Core Samples, Each Of Which Shall Represent Approximately One Thousand Square Metres (1,000 M²) Per Constructed Lift. Asphalt Densities Are Specified As Ninety Seven Percent (97%) Of The Standard Laboratory Marshall. A Minimum Of One (1) Marshall Per Day Shall Be Performed, With One (1) Core Sample Taken At A Designated Marshall Location. If Any Core Fails To Meet The Density Specified, No More Than Two (2) Additional Cores May Be Taken By The Contractor Within One (1) Metre Of The First Core Sample, And The Average Density Of The Three (3) Cores Shall Represent The Area. No Additional Rolling To Achieve A More Favorable Density Shall Be Allowed Without Authorization Of The Consultant. The Contractor Shall Be Responsible For All Costs Associated With The Re-Coring Of The Asphalt. If The Densities Are Less Than Specified, A Deficiency Penalty Shall Be Assessed In Accordance With The Following: ≥ 97.0 - Payment Reduction Factor: 0% 96.0 To 96.9 - Payment Reduction Factor: 3% 96.0 To 96.9 - Payment Reduction Factor: 12% 95.0 To 95.9 - Payment Reduction Factor: 25% Less Than 95.0 - *Remove And Replace *Note: For Densities Results Less Than Ninety Five Percent (95%), The Owner Will Determine Whether Removal And Replacement Is Necessary. For Material That Is Allowed To Remain In Place, Payment Will Be At Fifty Percent (50%) Of The Unit Price Bid. Asphalt Areas Below Ninety Five Percent (95%) Standard Marshall Density And Identified For Removal, Shall Be Removed And Replaced At The Contractor’S Expense. No Adjustment To The Unit Price Is To Be Made For Areas With A Density Higher Than That Specified. 5.24.4 Testing All Testing Required By The Specifications Will Be Carried Out By A Third-Party Engineer To Ensure That The Material Is Satisfactory. Testing Will Be Paid For Under The Cash Allowance Based On Invoices Submitted To The Town. 5.24.5 Smoothness The Surface Of The Compacted Pavement Shall Be True To The Required Grade And Cross Section With A Smooth Riding Quality Acceptable To The Consultant. In Addition To The Above, When Checked With A Three Metre (3M) Straight Edge Held In Successive Positions Parallel Or Perpendicular To The Center Line And In Contact With The Surface, The Pavement Surface Shall Not Deviate From The Straight Edge By More Than Three Millimeters (3Mm). If, In The Opinion Of The Consultant, An Objectionable Riding Surface Exists Or A Depression Or A Bump, The Contractor Shall Either Grind And Resurface With An Asphalt Overlay Or Remove And Replace The Asphalt Surface. 5.24.6 Texture The Completed Pavement Shall Have A Tightly Knit Texture And Shall Be Free From Segregation And Surface Cracking. Mixes That Are Excessively Tender, Or Difficult To Roll, Shall Be Redesigned By The Contractor’S Engineer To Remedy The Situation. The New Design Shall Meet All The Requirements Of This Section And Shall Be Submitted To The Consultant For Approval At Least Three (3) Working Days Prior To Its Use. 5.24.7 Traffic No Traffic Shall Be Allowed On The Finished Surface Until It Has Cooled To Atmospheric Temperature. 5.24.8 Segregation Contrary To Specification 3.50.7.2.2, Bonus Adjustments For Segregation Will Not Apply. 5.24.9 Measurement And Payment Asphalt Will Be Paid At The Unit Price Bid Per Square Metre For “Asphalt Concrete Pavement – Eps Mix Type M1 (Pg 52-34)” For The Thickness Specified In The Contract Drawings. The Price Bid Shall Be Full Compensation For The Furnishing, Mixing, Transportation, Gutter And Appurtenance Tacking, Placing, Rolling, Compacting And All Other Labour And Materials Required To Complete The Work In Accordance With These Specifications. 5.25 Asphalt Concrete Pavement (Preliminary Leveling) 5.25.1 Preliminary Leveling Areas That Require Preliminary Leveling Will Be As Shown In The Drawings And/Or As Identified In The Field By The Consultants. The Leveling Process Includes Removing Any Irregularities And Roughness, Filling Low Spots, And Compacting The Surface To Create A Uniform Profile. A Minimum Of One Pneumatic Tired Roller Shall Be Used For Compaction, And A Minimum Density Of 91% Of The Marshall Density, As Determined By The Consultant Is Required. The Material Type For Preliminary Leveling Shall Be The Same Designation And Class As Per Specified For The Subsequent Lift Of Asphalt Concrete Pavement. The Preliminary Leveling Is Intended To Be A Separate Operation And Shall Not Be Done As Part Of The Construction Of The Subsequent Lift Of Asphalt Concrete Pavement. According To Unit Price Adjustments Listed In Table 3.50 A And Lump Sum Sublot Assessments Listed In Table 3.50 C1, Highway Construction Standards, Preliminary Leveling Will Not Considered To Be A Lift. 5.25.2 Measurement And Payments Accepted Asphalt Concrete Pavement For Levelling Course Will Be Measured In Tonnes And Paid For At The Unit Price Bid For “Asphalt Concrete Pavement (Preliminary Levelling)”. Unit Price Adjustments Will Not Apply To Material Used For Levelling. No Payments Will Be Made For Unacceptable Materials. 5.26 Driveway / Lane Restoration Exact Limits Of All Driveway And Lane Restoration Will Be Determined And Marked By The Engineer In The Field Prior To Construction. 5.26.1 Concrete And Exposed Aggregate Driveways (Residential) Concrete Driveways Shall Be Sawcut Parallel To The Road. The Existing Concrete Shall Be Removed, And The Base Excavated To A Total Depth Of 300Mm From Finished Concrete Grade. The Base Shall Consist Of 150Mm Of 20Mm Gbc Material Compacted To 100% Of The Standard Proctor Density. A 150Mm Thick Concrete Slab Will Complete The Driveway. This Slab Cannot Be Connected To The Sidewalk And Must Be Poured Separately. A Fiber Board Or Alternative Will Be Placed Between The Curb And Driveway To Provide An Isolation Joint. The Slab Shall Be Dowelled To The Existing Driveway With 10M Bars And Reinforced With 152Mmx152mm Nv22.6/Nv22.6 Wire Mesh Or 10M Rebar At 400Mm O/C Installed 50Mm Above The Bottom Of The Slab. Exposed Aggregate Driveways Shall Be Completed As Close As Possible To The Existing Driveway. 5.26.2 Asphalt Concrete Pavement Driveways Acp Driveways Shall Be Saw-Cut Parallel To The Road. The Existing Acp Shall Be Removed, And The Base Excavated To A Total Depth Of 375Mm From Finished Acp Grade. The Base Shall Consist Of 300Mm Of 20Mm Gbc Material Compacted To 100% Of The Standard Proctor Density. A 75Mm Thick Lift Of Acp Will Complete The Driveway. The Mix Type Of The Acp For Driveways Shall Be The Same As The Overlay On The Road To The Property Fronts. 5.26.3 Gravel Driveways The Existing Gravel Shall Be Excavated To A Total Depth Of 300Mm From Finished Gbc Grade. The Driveway Shall Consist Of 300Mm Of 20Mm Gbc Material Compacted To 100% Of The Standard Proctor Density. 5.26.4 Brick Driveways Brick Pavers Shall Be Removed And Salvaged For Re-Use. The Base Shall Be Excavated To A Total Depth Of 200Mm From The Bottom Of The Adjacent Bricks. The Base Shall Consist Of 150Mm Of 20Mm Gbc Material Compacted To 100% Of The Standard Proctor Density With A 50Mm Lift Of Levelling Sand. The Salvaged Brick Pavers Shall Then Be Installed To The Satisfaction Of The Engineer. Any Damage To Existing Pavers Shall Be The Responsibility Of The Contractor, And No Separate Payment For Replacement Will Be Considered. 5.26.5 Decorative Rock Gardens All Materials For A Decorative Rock Garden Within The Working Limits Shall Be Removed And Salvaged For Re-Use. The Disturbed Areas Shall Be Backfilled To The Satisfactions Engineer, Supply And Placement Of Mulch, And The Salvaged Materials Replaced. This Restoration Shall Be Considered Incidental To The Work, And No Separate Payment Will Be Made. 5.26.6 Concrete Curbs Driveway Concrete Curbs Shall Be Saw-Cut Parallel To The Road. The Existing Concrete Shall Be Removed, And The Base Excavated To A Total Depth Of 300Mm From Finished Driveway Grade. The Base Shall Consist Of 150Mm Of 20Mm Gbc Material Compacted To 100% Of The Standard Proctor Density. The Concrete Curb Shall Be Reinstalled To Match The Existing Profile. 5.27 Concrete Installation The Contractor Shall Supply And Install All Concrete Work As Shown In The Drawings And/Or As Directed By The Consultant. Unless Otherwise Stated, Concrete Shall Be Type S2 And Supplied In Accordance With Csa A23.1 Standard Specifications. The Contractor Will Be Required To Submit A Concrete Mix Design To The Consultant For Approval Prior To Construction. Quantities May Vary At The Time Of Construction. The Exact Locations For Installation Of Concrete Structures Will Be Determined On Site By The Consultant At The Time Of Construction. The Contractor Shall Have No Claim Against The Town Or The Consultant For Changes To The Estimated Quantities Provided In The Unit Price Schedule. 5.27.1 General Concrete Installation In Addition To The Specification Requirements, The Contractor Is To Ensure New Curb And Gutter Will Have Adequate Drainage. The Contractor Is To Check All Grades And Ensure Correct Drainage Will Be Provided Prior To Pouring Concrete. This Is Considered Incidental To Curb Installations And No Separate Payment Will Be Made. Any Base Material That Is Not Suitable Shall Be Removed And Disposed Of As Directed By The Consultant And Replaced With Approved Material. The Contractor Will Use Lean Concrete Mix Of Strength 0.7 Mpa - 1.5 Mpa (Or As Outlined In The Csa Standards) In Areas Around Catch Basins, Adjacent To Curb And Gutter, Swales, In Areas Within The Roadway Less Than 0.3 M In Width Or Where Compaction May Be Unachievable. This Lean Concrete Mix Can Be Used Within A Maximum Of 0.06 Meters Below Acp Surface. All Backfill Material Placed Along The Front Edge Of The Curbs And Sidewalk Including Granular Base Course And Lean Mix Will Be Considered Incidental To The Work And Shall Not Be Paid For Separately. 5.27.2 Compaction In Addition To The Specification Requirements, All Gbc (Des. 2 Class 20) Installed Under The Concrete Curbs And Sidewalks Shall Have A Minimum Of Ninety Eight Percent (98%) Of Standard Proctor Density; At Optimum Moisture Content. If The Embankment Fails To Pass The Density Test, It Shall Be Re-Compacted At Adjusted Moisture Content So That It Will Pass The Density Test. The Gbc Should Extend A Minimum Of 200 Mm Beyond The Edge Of The Concrete. 5.27.3 Concrete Testing Quality Control Testing Will Be The Responsibility Of The Contractor As Per Specification 5.5.4 Of The Standard Specifications. Results Of All Quality Assurance Testing Shall Be Submitted To The Consultant As They Become Available. 5.27.4 Backfilling For Curb And Gutters, Sidewalks And Monolithic Curb, Gutter And Sidewalks, The Contractor Shall Backfill As Soon As Possible After The Removal Of Forms. The Backfill Shall Be Mechanically Tamped And Trimmed. Organic Soils Shall Not Be Permitted For Backfilling, Except Where Topsoil Is Specified For The Top 100 Mm Of Fill. For Curb And Gutter The Contractor Shall Backfill Behind The Curb With Suitable Material After The Seven (7) Day Curing And Protection Period Has Elapsed. The Backfill Shall Extend To At Least 600 Mm Behind The Curb And Shall Be Compacted In Two Lifts. Backfill Material Shall Be Compacted To Ninety-Five Percent (95%) S.P.D. Which Shall Be Obtained By Means Of A Hand Operated Mechanical Tamper Or Other Equipment As Approved By The Consultant. Backfill Conditions Must Match Or Exceed Preconstruction Conditions Unless Otherwise Directed By The Consultant. 5.27.5 Sidewalk (Pin-On) In Addition To The Specification Requirements, Pin-On Sidewalks Shall Be Constructed As Per The “Standard Details” As Identified On The Design Drawings. The Work Shall Consist Of Saw Cutting Concrete, Removal And Disposal Of The Existing Subgrade To The Limits Identified By The Consultant, Subgrade Preparation, Supply, Placement And Compaction Of 150 Mm Of Granular Base Course And The Supply And Placement Of Concrete (125 Mm Depth). Reinforcing Steel Bars \Will Be Required At Driveway Locations, Utility Repair Locations And Commercial Crossings As Per The Drawings, Specifications And As Directed By The Consultant. The Sidewalk Is To Be Constructed With The Same Concrete Mix As Is Used For The Concrete Curb And Gutter Installation. 5.27.6 Monolithic Sidewalk, Curb And Gutter The Work Shall Consist Of Saw-Cutting Concrete, Removal And Disposal Of The Existing Subgrade To The Limits Identified By The Consultant, Subgrade Preparation, Supply, Placement And Compaction Of 150 Mm Of Granular Base Course And The Supply And Placement Of Reinforced Concrete (125 Mm Depth). Reinforcing Steel Bars Will Be Required At Driveway Locations, Utility Repair Locations And Commercial Crossings As Per The Drawings, Specifications And As Directed By The Consultant. The Sidewalk Is To Be Constructed With The Same Concrete Mix Design As Is Used For The Concrete Curb And Gutter Installation. 5.27.7 Para-Ramps All Para-Ramps Shall Be Constructed As Per The “Standard Details” As Identified On The Design Drawings Or To The Satisfaction Of The Consultant. 5.27.8 Concrete Swale In Addition To The Specification Requirements, All Concrete Swale Work Is To Be Constructed As Per The “Standard Details” As Identified On The Design Drawings. Saw-Cuts For The Swale Installation Shall Be A Minimum Of 1.00 M From Each Proposed Edge Of The Swale As Laid Out By The Construction Survey. Saw-Cuts Are Incidental To The Price Of The Concrete Swale. The Concrete Swale Is To Be Constructed With The Same Concrete Mix Design As Is Used For The Concrete Curb And Gutter Installation. 5.27.9 Measurement And Payment Measurement Will Be Made In Linear Metres To The Nearest 0.1 Metre And Payment Will Be Made At The Applicable Unit Price Bid For: (I) Standard Curb And Gutter, Measured Along The Length Of Lip Of Gutter. (Ii) Concrete Swale Measured Along The Length Of The Flow Line In Accordance With The Widthspecified In The Bid Item. (Iii) Monolithic Sidewalk, Curb And Gutter Measured From Lip Of Gutter To Back Of Walk Andpaid By The Square Metre. (Iv) Concrete Sidewalks Measured Per Square Metre (Length And Width). (V) Concrete Sidewalks (Pin-On) Measured By The Meter Along The Back Of Curb In Accordance With The Width Specified In The Bid Item. Excavation, Base Preparation And Bedding Will Not Be Measured And Paid For Separately But Will Be Included In The Contract Unit Price For The Concrete Structure. Dowels Bars Will Be Considered Incidental To The Work And No Separate Or Additional Payment Will Be Made. Steel Reinforcing Bars Will Be Paid For Under Bid Item 1.11 – Steel Reinforcement – Supply And Install And Will Be Measured By The Lineal Meter Of Curb. The Payment For The Various Types Of Concrete Specified Will Be Full Compensation For Excavation, Backfilling, Base Preparation, Bedding, Granular Material, Lean Mix, Supply And Application Of Curing Compound And Surface Sealing, And All Labour, Materials, Equipment, Tools And Incidentals Necessary To Complete The Work To The Satisfaction Of The Consultant. 5.29 Site Restoration: All Sites Must Be Restored To The Same Condition Or Better Than Prior To Construction Commencing. This Work Shall Include But Not Be Limited To: Topsoil – Supply And Place Broadcast Seeding Seed Mix Fertilizer