Contract Design, Estimating and Documentation (CDED) Manual REVISION PACKAGE #204

Transcription

1 Contract Design, Estimating and Documentation (CDED) Manual REVISION PACKAGE #204 d: January 28, 2016 Portable Document Format (PDF) copies of this revision package as well as the individual documents and the complete manual, can be accessed and printed free of charge from the Technical Publications website at Attached are copies of the CDED documents issued in digital format under this revision. Please update your manual as per the instructions detailed below. Chapter B - Detail Estimating Reference Code B1 B305 Existing Version October 2015 April 1999 New Version January 2016 January 2016 B342 N/A January 2016 B351 May 2001 B351-2 April 2014 January 2016 N/A Implementation In CPS Remarks New (New), Revised (Rev), Cancelled (Can), Reissued (Rei) January 28, 2016 Rev: Chapter B - Detail Estimating - Table of Contents is revised. January 28, 2016 Rev: Detail Estimating chapter for Granular Sealing is revised with changes throughout including the addition of information for sealant types. January 28, 2016 New: Detail estimating chapter for Centreline and Shoulder Rumble Strips in Asphalt is implemented. Replaces B January 28, 2016 Rev: Detail estimating chapter for Concrete Sidewalk is revised. Updated to reflect changes to OPSS 351 and addition of applicable content from B January 28, 2016 Can: Detail Estimating chapter for Tactile Walking Surface Indicators for Concrete Sidewalk Ramps is cancelled. Applicable content incorporated into B351. January 28, 2015 Page 1 of 4 CDED Revision #204

2 Reference Code Existing Version B399-1 April 2014 B723 B803 B805 April 2015 September 2014 September 2011 New Version NA January 2016 November 2015 January 2016 Implementation In CPS Remarks New (New), Revised (Rev), Cancelled (Can), Reissued (Rei) January 28, 2016 Can: Detail estimating chapter for Rumble Strips in Asphalt is cancelled. Applicable content incorporated into B342. January 28, 2016 Rev: Detail estimating chapter for Energy Attenuators is revised. Quadguard Super wide tender items have been added. January 28, 2016 Rev: Detail Estimating chapter for Sodding is reaffirmed. No changes to technical content. January 28, 2016 Rev: Detail Estimating chapter for Temporary Erosion and Sediment Control Measures is revised with changes throughout. Chapter E - Standard Special Provisions (SSPs) Reference Code Existing Version E3-1 December S07 305F01 June 2015 December 2006 New Version January 2016 Implementation In CPS Remarks New (New), Revised (Rev), Cancelled (Can), Reissued (Rei) January 28, 2016 Rev: List of Active SSPs is revised. N/A January 28, 2016 Can: SP Amendment to OPSS Markings - NSF Certification Logo is cancelled. Applicable content incorporated into updated OPSS. N/A 305S02 N/A January S02 351S04 July 2007 April 2014 January 2016 N/A January 28, 2016 Can: SP for Lot Definition, Operational Constraints, Sampling, Measurement for Payment and Basis of Payment, Including Price Adjustment for Granular Sealing is cancelled. January 28, 2016 New: SP Amendment to OPSS 305 Construction Specification for Granular Sealing is implemented. January 28, 2016 Rev: SP Amendment to OPSS 351 is revised. Applicable content incorporated into updated OPSS and content added for requirements for granular material placed below sidewalk. January 28, 2016 Can: SSP Amendment to OPSS 351 is cancelled. Applicable content incorporated into updated OPSS. January 28, 2015 Page 2 of 4 CDED Revision #204

3 Reference Code Existing Version New Version Implementation In CPS Remarks New (New), Revised (Rev), Cancelled (Can), Reissued (Rei) 399S41 April 2014 N/A January 28, 2016 Can: Construction Specification for Installation of Centreline and Shoulder Rumble Strips is cancelled. Applicable content incorporated into OPSS S01 April 2015 January 2016 January 28, 2016 Rev: SP Amendment OPSS 723 is revised. Quadquard Super Wide System added to Table S05 September 2011 January 2016 January 28, 2016 Rev: SP for Certification of Safety Items is revised with the addition of Super Wide Energy Attenuator items. 805F01 September 2011 December 2015 January 28, 2016 Rev: SP Amendment to OPSS 805 for Requirements for Construction and Removal of Measures is revised with changes to the associated tender items. Chapter G - Ministry of Transportation Ontario (MTODs) Reference Code Existing Version G2-0 December March 2015 (Rev 1) March 2015 (Rev 1) March 2014 (Rev n/a) May 2015 (Rev 1) Oct 2015 (Rev 0) New Version January 2016 N/A N/A N/A N/A January 2016 (Rev 1) Implementation In CPS Remarks New (New), Revised (Rev), Cancelled (Can), Reissued (Rei) January 28, 2016 Rev: List of Active MTODs is revised. January 28, 2016 Can: Concrete Sidewalk Ramps at Signalized Intersections drawing is cancelled. Replaced by OPSD January 28, 2016 Can: Concrete Sidewalk Ramps at Signalized Intersections With Intersecting Crosswalks drawing is cancelled. Replaced by OPSD January 28, 2016 Can: Concrete Sidewalk Ramps at Unsignalized Intersections drawing is cancelled. Replaced by OPSD January 28, 2016 Can: Concrete Sidewalk Ramps Tactile Walking Surface Indicators Component drawing is cancelled. Replaced by OPSD January 28, 2016 Rev: Guide Rail System, Steel Beam Type M20 Steel Post with Offset Block Component drawing is revised with changes to title and labels. January 28, 2015 Page 3 of 4 CDED Revision #204

4 Chapter H - OPSSs and OPSDs Reference Code Existing Version H2-1 December 2015 H2-2 August 2015 H3-22 December 2014 H3-23 May 2014 H3-26 July 2014 H3-29 October 2015 New Version January 2016 January 2016 January 2016 January 2016 January 2016 January 2016 Implementation In CPS Remarks New (New), Revised (Rev), Cancelled (Can), Reissued (Rei) January 28, 2016 Rev: List of Active OPSSs - General and Construction Specifications is revised. January 28, 2016 Rev: List of Active OPSSs - Material Specifications is revised. January 28, 2016 Rev: List of Active OPSDs - Division Grading is revised. January 28, 2016 Rev: List of Active OPSDs - Division Entrances is revised. January 28, 2016 Rev: List of Active OPSDs - Division Curbs and Gutters is revised. January 28, 2016 Rev: List of Active OPSDs - Division Fencing and Guide Rails is revised. January 28, 2015 Page 4 of 4 CDED Revision #204

5 CHAPTER B - DETAIL ESTIMATING TABLE OF CONTENTS CHAPTER B - TABLE OF CONTENTS SECTION TITLE B1 Chapter B - Table of Contents B001 Writer s Guide for CDED Manual Chapter B - Detail Estimating B201-1 Clearing B201-3 Grubbing B201-4 Removal of Boulders B201-6 Mechanical Stump Cutting B202 Rock Removal by Manual Scaling, Machine Scaling, Trim Blasting, or Controlled Blasting B203 Rock Stabilization B206-1 Earth Grading B206-2 Rock Grading B206-3 Excavation for Pavement Widening B209 Embankments Over Swamps and Compressible Soils B212 Earth Borrow B299-1 Rental of Equipment B299-2 Ditch Cleanout B301 Restoring Unpaved Roadway Surfaces B304 Surface Treatments B305 Granular Sealing B307 Stockpiling of Patching Materials and Patching of Asphalt Pavement B308 Tack Coat B311 Asphalt Sidewalk B312-1 Asphalt Curb and Gutter Systems B312-2 Asphalt Surfacing of Gutter B313-1 Hot Mix Asphalt B Hot Mix Asphalt Miscellaneous B314 Granulars B316 Extruded Expanded Polystyrene Treatment B320 Open Graded Drainage Layer B330 In-Place Full Depth Reclamation of Bituminous Pavement and Underlying Granular B331 Full-Depth Reclamation With Expanded Asphalt Stabilization B332 Hot In-Place Recycling B333 Cold In-Place Recycling B335 Cold In-Place Recycling With Expanded Asphalt B336 Micro-Surfacing B337 Slurry Seal January 2016 Page 1 of 3 B1

6 CHAPTER B - DETAIL ESTIMATING TABLE OF CONTENTS SECTION TITLE B341 Routing and Sealing and/or Sealing Cracks in Asphalt Pavement B342 Centreline and Shoulder Rumble Strips B350 Concrete Base and Concrete Pavement B351 Concrete Sidewalks B352 Concrete Steps B353 Concrete Curb and Gutter Systems B355 Interlocking Concrete Pavers B360 Full Depth Repair of Concrete Pavement or Concrete Base B362 Fast Track Full Depth Repairs to Concrete Pavement B363 Repairing Rigid Pavement with Precast Concrete Slabs B364 Partial Depth Repairs in Concrete Pavement B365 Cross-Stitching Longitudinal Cracks in Concrete Pavement and Concrete Base B369 Sealing or Resealing of Joints and Cracks in Concrete Pavement and Concrete Base B399-2 Reclaim Asphalt Pavement B405 Pipe Subdrains B407-1 Maintenance Holes, Catch Basins and Ditch Inlets B407-2 Rock Excavation for Sewers, Maintenance Holes, Catch Basins and Ditch Inlets B410 Pipe Sewers B415 Tunnelling B416 Jacking and Boring B421-2 Pipe Culverts B422 Precast Reinforced Concrete Box Culverts and Box Sewers B441 Watermains B501 Compacting B510-0 Removal B510-1 Removal Bridge Work B510-2 Removal Drainage Work B510-3 Removal Fence and Noise Barrier Work B510-4 Removal Delineators, Traffic Barriers and Energy Attenuator Work B510-5 Removal Pavement Work B510-6 Removal Concrete Work B510-7 Removal Right of Way Work B510-8 Removal Miscellaneous Work B511 Rip Rap, Rock Protection, Granular Sheeting B512 Gabions B517 Dewatering of Pipeline, Utility and Associated Structure Excavation B703 Permanent Small Signs and Supports B704 Post Mounted Delineators January 2016 Page 2 of 3 B1

7 CHAPTER B - DETAIL ESTIMATING TABLE OF CONTENTS SECTION TITLE B705 Flexible Delineator Posts B710 Pavement Marking B721-1 Cable Guide Rail B721-2 Steel Beam Guide Rail B723 Energy Attenuators B730 Guide Rail End Treatment - Eccentric Loader Terminal System B731 Crash-Cushion Attenuating Terminal System (CAT) B732 Steel Beam Energy Attenuating Terminal (SBEAT) B740 Concrete Barrier B741 Temporary Concrete Barriers B753 Connecticut Impact Attenuation System (CIAS) B760 Noise Barrier Systems B771 Standard Highway Fence B772 Chain-Link Fence B799-2 REACT 350 B799-6 Ramp Closure Gates B802 Topsoil B803 Sodding B804 Seed and Cover B805 Temporary Erosion and Sediment Control Measures B810 Rootwad Structures B811 Large Woody Debris B812 LUNKERS B902 Excavation and Backfill for Structures B904 Concrete in Culverts B905 Reinforcing Steel, Coated Reinforcing Steel B907 Structural Wood Systems B908 Metal Traffic Barriers and Metal Railings for Structures B914 Waterproofing Bridge Deck B918 Modular Bridge Structures for Temporary Installations B932 Crack Repair - Concrete B942 Prestressed Soil and Rock Anchors B999-A Appendix A - Contingencies and Allowances B999-B Appendix B - Checking of Quantities January 2016 Page 3 of 3 B1

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9 DETAIL ESTIMATING GRANULAR SEALING B305 - GRANULAR SEALING - OPSS GENERAL Granular sealing is a method to control surface erosion of granular shoulders and roundings. The granular sealing is applied: - On granular shoulder, 100 mm inside the edge of pavement to the outside edge of rounding, or as specified. - On paved shoulders with guide rail, 100 mm inside the edge of the narrowed paved shoulder to the outside edge of rounding, or as specified. - On paved shoulders without guide rail, 100 mm inside the edge of paved shoulder to the outside edge of rounding, or as specified REFERENCES - N/A TENDER ITEMS Granular Sealing SPECIFICATIONS The requirements for granular sealing are contained in OPSS SPECIAL PROVISIONS The designer should refer to Chapter "E" of this manual to review the applicable Special Provisions STANDARD DRAWINGS Treatment of granular sealing for erosion control is shown on the Ontario Provincial Standard Drawings in the 200 series. January 2016 Page 1 of 4 B305

10 DETAIL ESTIMATING GRANULAR SEALING DESIGN There are four sealant types: Type I-a RC-30 and MTO primer according to OPSS 1102 Type I-b Emulsified asphalt primer according to OPSS 1103 Type II Solvent-free emulsified asphalt according to OPSS 1103 Type III Tall oil pitch (TOP) emulsion according to OPSS 2510 The type of sealant (Type I, Type II, or Type III) to be used at each location is specified. When Type I is specified, the contractor chooses Type I-a or Type I-b. Type III should only be applied to aggregates meeting the requirements of Granular A, S, or M. Due to environmental concerns, Type I or Type II granular sealing must not be applied in locations within 30 m of waterbodies or marshes. Type III granular sealing may be used at such locations. The designer should determine the locations where a particular sealer type (i.e. I-a, I-b, II, or III) should be specified, and for locations where a particular sealer type is not required, specify all the sealer type options available to the Contractor. The designer may choose the appropriate sealer on the basis of the guidelines in this document and the expected number of years before the shoulder would need to be re-sealed, as follows: Sealer Type Expected # of Years Before Re-Sealing I-a, I-b 4 II 3 III 2 Notes: 1. The expected # of years, with the exception of Type III, is based on only occasional vehicle trafficking. 2. Type III should only be specified at locations with minimal risk of vehicle trafficking. 3. All sealers should perform behind guiderail for at least 3 years when applied according to the manufacturer s requirements. Hand-spraying is required around guide rails, road markers, utility boxes, within 30 m of waterbodies or marshes, and any tight areas where spray from a machine s nozzle bar could be blocked and where the application rate is likely to be inadequate. Machine-spraying may be used in all other areas. January 2016 Page 2 of 4 B305

11 DETAIL ESTIMATING GRANULAR SEALING The use of and type of granular sealing to be used may be recommended in the Pavement Design Report, or may be determined in consultation with geotechnical and environmental project staff COMPUTATION This tender item can be either: - a Plan Quantity Payment (PQP) item with a unit of measure by the square metre; - an actual measured item with a unit of measure by the kilogram. When the unit of measure is by the square metre, the area to be treated is calculated by multiplying the length times the width as per applicable standards or typical sections measured horizontally. The width used in the calculation shall be kept constant if possible and, shall reflect the requirement that sealer applied beside an existing roadway wearing surface be overlapped 100 mm onto the wearing surface. When the unit of measure is by the kilogram then areas for machine spraying or hand spraying shall be determined as specified above. These areas will be multiplied by the specified application rates per square metre DOCUMENTATION Contract Drawings At locations where the standard drawings for granular sealing are not adequate, drawing details may be used to show the requirements Quantity Sheets When the unit of measure for this item is by the square metre, then the individual quantity entries are shown in square metres on the "Quantities - Miscellaneous" sheet. When the unit of measure for this item is by the kilogram, then the individual quantity entries are shown in kilograms on the "Quantities - Miscellaneous" sheet. Locations are documented by station to station limits and offset left or right of the roadway centreline. January 2016 Page 3 of 4 B305

12 DETAIL ESTIMATING GRANULAR SEALING Granular sealing is a variation item. Quantities are documented in separate columns for each type of sealant and method of application. By item variation, the sealer type or sealer type options (Type I, Type II, Type III, Type I or Type II, Type II or Type III, or Type I, II or III and method of spray (machine or hand) is specified in the column heading. The individual column entries are totaled into the tender total which is transferred to the Form of Tender Documentation Accuracy Quantities and Stations on the Quantity Sheet are recorded to the nearest whole number. January 2016 Page 4 of 4 B305

13 DETAIL ESTIMATING CENTRELINE AND SHOULDER RUMBLE STRIPS IN ASPHALT B342 - CENTRELINE AND SHOULDER RUMBLE STRIPS IN ASPHALT - OPSS.PROV GENERAL A rumble strip is a grooved formation that is installed into the asphalt paved surface. The intent of shoulder rumble strips (SRS) and centreline rumble strips (CRS) is to provide an audible and tactile warning to drivers that they are departing from the roadway. This audible and tactile warning is generated by the vehicle tires passing over the rumble strips REFERENCES Ministry Directive, PLNG-B-004, Highway Shoulder Rumble Strip Application and Installation Policy MTO Memorandum, Highway Design Bulletin , Centreline Rumble Strip Application and Installation Policy MTO Bikeway Design Manual (2014) TENDER ITEMS Centreline Rumble Strips - Asphalt Shoulder Rumble Strips - Asphalt Shoulder Rumble Strips for Bicycle Buffer Zones - Asphalt SPECIFICATIONS The requirements for SRS and CRS are contained in OPSS.PROV SPECIAL PROVISIONS Refer to Chapter E of this manual to review the applicable standard special provisions STANDARD DRAWINGS Applicable standard drawings are contained in the 500 series of the Ministry of Transportation of Ontario Drawings (MTOD). January 2016 Page 1 of 3 B342

14 DETAIL ESTIMATING CENTRELINE AND SHOULDER RUMBLE STRIPS IN ASPHALT DESIGN Design considerations for SRS are found in Ministry Directive, PLNG-B-004, Highway Shoulder Rumble Strip Application and Installation Policy. Design considerations for CRS are found in MTO Memorandum, Highway Design Bulletin , Centreline Rumble Strip Application and Installation Policy Design considerations for SRS in bicycle buffer zones are found in the MTO Bikeway Design Manual (2014) COMPUTATION These are Plan Quantity Payment items. Quantities are computed in metres, and measured horizontally from end to end along the centreline of the installation. Gaps in the rumble strip installation are not included in the measured length. Gaps include, but are not limited to: entrance and intersection locations; entrance and exit terminal locations; and right turn lane and taper locations. The standard gaps (i.e. 3.6 m) provided in SRS installations within bicycle buffer zones are included in the measured length. Example: SRS are installed on both sides of a 2 km section of a two-lane undivided highway. There are four entrances and one side street on the left side of the highway while there are three entrances and one side street on the right side of the highway. SRS (left) = 2000 (4x60 + 4x30 + 1x60 + 1x30) = 1550 m SRS (right) = 2000 (3x60 + 3x30 + 1x60 + 1x30) = 1640 m SRS (total) = 1550 m m = 3190 m Sources of Information Locations for rumble strip installation are determined in accordance with the directives, policies, and guidelines listed in Section January 2016 Page 2 of 3 B342

15 DETAIL ESTIMATING CENTRELINE AND SHOULDER RUMBLE STRIPS IN ASPHALT DOCUMENTATION SRS quantities and locations are indicated on the Quantities-Miscellaneous" sheets under the appropriate column heading, showing station to station limits and location, left or right of centreline. Include the applicable MTOD number in the column heading. CRS quantities and locations are indicated on the Quantities-Miscellaneous" sheets under the appropriate column heading, showing station to station and location along centreline. Include the applicable MTOD number in the column heading. For SRS in bicycle buffer zones, additional quantities for the outer pavement marking edge line beyond the SRS will need to be calculated and included under the appropriate pavement marking item Documentation Accuracy Station and quantity entries are recorded to the nearest whole metre. January 2016 Page 3 of 3 B342

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17 DETAIL ESTIMATING CONCRETE SIDEWALK B351 - CONCRETE SIDEWALK - OPSS GENERAL The design and construction of concrete sidewalks, when justified and approved in accordance with Provincial Engineering Memorandum, Director s Office # (February 2011), Revision June 2015, should be in accordance with Section D.8.4 of the Geometric Design Standards for Ontario Highways. The design and construction of sidewalk ramps should be in accordance with Provincial Engineering Memorandum, Design & Contract Standards Office # , May 15, The Ministry may pay 100% of the cost of a new sidewalk across a King's Highway, Freeway or Expressway at an interchange, intersection or flyover, provided the following conditions are met: (a) Sidewalk must be requested by the Municipality. (b) Sidewalk must be recommended by the Regional Planning and Design Section as being required from a delineation and/or pedestrian safety point of view. (c) Municipality must give a commitment to construct a municipal sidewalk to join at each end of that sidewalk to be constructed by the Ministry. (d) Sidewalk must be located within the right-of-way and cross the Provincial Highway at an interchange or intersection. (e) The Municipality must undertake to maintain and accept liability for any sidewalk constructed under the above conditions. The Ministry will pay 100% of the cost of replacing an existing sidewalk that will be damaged or destroyed by the work Concrete Sidewalk The following work is associated with the construction of concrete sidewalk, but is not included in the Concrete Sidewalk tender item. a) Excavation required to construct the sidewalk and granular foundation. The excavation required above the bottom of sidewalk grade is to be included in the tender item "Earth Excavation (Grading)" and/or "Rock Excavation (Grading)". January 2016 Page 1 of 5 B351

18 DETAIL ESTIMATING CONCRETE SIDEWALK b) Granular quantities required for foundation work are to be included in the appropriate granular item. Normally, Granular A is used for foundation material. Normal sidewalk width is 1.5 metres which is also the minimum width requirements in accordance with Ontario Regulation 413/12. Wider sidewalk widths should be considered in areas of high pedestrian traffic in accordance with guidance in the Geometric Design Standards for Ontario Highways Tactile Walking Surface Indicators for Concrete Sidewalk Ramps Construction of new or replacement sidewalks and/or curbs adjacent to controlled pedestrian crossings where the concrete is placed adjacent to the pedestrian crossing require sidewalk ramps and Tactile Walking Surface Indicator Plates to be in compliance with Ontario Regulation 413/ REFERENCES Provincial Engineering Memorandum, Director s Office # (February 2011), Revision June 2015 Provincial Engineering Memorandum, Design & Contract Standards Office # , May 15, 2014 Geometric Design Standards for Ontario Highways Ontario Regulation 413/ TENDER ITEMS Concrete Sidewalk (variation item) Tactile Walking Surface Indicators for Concrete Sidewalk Ramps SPECIFICATIONS The requirements for the above tender items are contained in OPSS SPECIAL PROVISIONS The designer should refer to Chapter 'E' of this manual to review the applicable special provisions. January 2016 Page 2 of 5 B351

19 DETAIL ESTIMATING CONCRETE SIDEWALK STANDARD DRAWINGS Applicable standard drawings for concrete sidewalks are contained in the Ontario Provincial Standards Drawings Manual in the 300 Series DESIGN Tactile Walking Surface Indicators for Concrete Sidewalk Ramps shall only be included adjacent to controlled pedestrian crossings when: - new sidewalk and/or curb is required at a new intersection, - an existing intersection is being reconstructed or widened which impacts the existing curb ramps, - the existing sidewalk and/or curb requires replacement due to condition, or - the existing sidewalk and/or curb must be removed and replaced due to new traffic signal installation or other work. In all other cases, existing sidewalk ramps in accordance with OPSD (October 1, 1993) in each quadrant of an intersection may remain in place and should not be retrofitted with tactile walking surface indicator plates COMPUTATION This is Plan Quantity Payment item Source of Information The main sources of information for Concrete Sidewalk are the B-Plans, Crosssections, the local Municipality and the Regional Geotechnical Section Method of Calculation The unit of measurement for Concrete Sidewalk is the square metre and is calculated using the horizontal design dimensions. The typical depth of concrete for sidewalks is 125 mm, increased to 150 mm across residential driveways, and 200 mm across commercial and industrial driveways. The depth may be increased at the request of the Municipality providing the Municipality agrees to absorb the additional costs. January 2016 Page 3 of 5 B351

20 DETAIL ESTIMATING CONCRETE SIDEWALK Grading required for sidewalks is calculated in cubic metres. The depth of excavation is to include the concrete thickness. The grading quantity is to be added to the tender item Earth Excavation (Grading). The granular foundation depth is normally 100 mm for concrete sidewalk. The granular quantity in tonnes is added to the appropriate granular tender item. Unsuitable soils below the granular foundation are typically sub-excavated and replaced with suitable earth or select subgrade material Tactile Walking Surface Indicators for Concrete Sidewalk Ramps Quantities are computed for each set of Tactile Walking Surface Indicator Plates installed at each sidewalk ramp. A set of two Tactile Walking Surface Indicators for Concrete Sidewalk Ramps at each ramp location is counted as a quantity of DOCUMENTATION The location for placing sidewalks is to be indicated on the construction plans of the contract drawings. Concrete sidewalks and sidewalk ramps require the indication of the appropriate standard drawing number on the plans. The width of sidewalk is indicated on the plans. Quantities for earth excavation, granular and concrete sidewalk constructed at the expense of a Municipality are to be clearly defined by Station to Station on the appropriate Quantity Sheet. The granular foundation quantity is added to the roadway granular item and identified as a separate entry on the quantity sheet showing the depth of granular on the same line. The grading quantities for concrete sidewalk are added to the tender item Earth Excavation (Grading) and shown as a separate entry on the Quantities - Grading sheet. Concrete Sidewalk is a variation item. The variation is the sidewalk depth, with typical values of 125 mm, 150 mm, and 200 mm. Each variation requires a separate column on the Quantities Miscellaneous sheet. Sidewalk locations are documented by station to station limits and offsets right or left of the roadway centreline on the Quantities - Miscellaneous sheet. The individual column entries are totalled into the tender total which is transferred to the Form of Tender. Tactile Walking Surface Indicators for Concrete Sidewalk Ramps locations are depicted on the contract drawings with the appropriate OPSD number shown. The applicable Standard Drawings shall be included in the contract. January 2016 Page 4 of 5 B351

21 DETAIL ESTIMATING CONCRETE SIDEWALK Tactile Walking Surface Indicators for Concrete Sidewalk Ramps quantities are computed and entered on the Quantities-Miscellaneous sheet under the appropriate column heading, showing station and location, left or right of centreline. The column entries are totalled and transferred to the Form of Tender Documentation Accuracy Stations are recorded in whole numbers. Quantity entries for Concrete Sidewalk are recorded in whole number square metres. Quantity entries for Tactile Walking Surface Indicators for Concrete Sidewalk Ramps are recorded in whole numbers. January 2016 Page 5 of 5 B351

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23 DETAIL ESTIMATING ENERGY ATTENUATORS B723 - ENERGY ATTENUATORS - OPSS.PROV GENERAL Various proprietary permanent and temporary energy attenuators are used to reduce the hazard associated with the ends of permanent and temporary concrete barriers. Tables 1 and 2 in OPSS.PROV 723 list the names of systems acceptable for the items Energy Attenuator - Permanent, and Energy Attenuator - Temporary for several applications. The Contractor is given the option of supplying and installing any of the listed systems specified in the contract documents for the appropriate tender item. The energy attenuators all meet the crash test acceptance requirements of NCHRP Report 350. Additional background information is in Highway Design Bulletin REFERENCES CDED B Earth Excavation Grading Roadside Safety Manual Highway Design Bulletin TENDER ITEMS Energy Attenuator Permanent, Narrow (Variation) Energy Attenuator Permanent, Wide (Variation) Energy Attenuator Permanent, Extra Wide (Variation) Energy Attenuator Permanent, Super Wide (Variation) Energy Attenuator Permanent, High Exposure (Variation) Energy Attenuator Permanent, Single Sided Energy Attenuator Temporary, Narrow (Variation) Energy Attenuator Temporary, Wide (Variation) Energy Attenuator Temporary, Extra Wide (Variation) Energy Attenuator Temporary, Super Wide (Variation) Energy Attenuator Temporary, Reduced Exposure (Variation) Energy Attenuator Temporary, Dual Duty (Variation) Energy Attenuator Relocation, Narrow (Variation) Energy Attenuator Relocation, Wide (Variation) Energy Attenuator Relocation, Extra Wide (Variation) Energy Attenuator Relocation, Super Wide (Variation) Energy Attenuator Relocation, Reduced Exposure (Variation) Energy Attenuator Relocation, Dual Duty (Variation) January 2016 Page 1 of 6 B723

24 DETAIL ESTIMATING ENERGY ATTENUATORS SPECIFICATIONS The requirements for the Energy Attenuators are contained in OPSS.PROV SPECIAL PROVISIONS Refer to Chapter E of this Manual to review the applicable standard special provisions STANDARD DRAWINGS Applicable Standard Drawings are contained in the 900 series of the Ontario Provincial Standard Drawings (OPSD) DESIGN Foundations: A permanent energy attenuator installation includes a new concrete pad. If an existing concrete surface or pad can be used to support the system, it should be specified in the Contract Documents. Temporary energy attenuators are typically installed on an existing surface. The designer should confirm that one of the following foundation options is available for each temporary energy attenuator installation: a) Existing concrete surface: - min. 200 mm deep, 28 MPa min. compressive strength b) Asphalt over compacted granular: - min. 150 mm asphalt over 150 mm min. compacted granular - the asphalt must extend a minimum of 500 mm beyond the anchor bolts c) Asphalt over concrete: - min. 75 mm asphalt over 75 mm min. concrete, 28 MPa min. compressive strength If the existing surface is not suitable for the temporary installation, a concrete pad should be specified in the Contract Documents. The designer should confirm that any existing concrete surface or pad is in good condition and will provide a smooth operating surface for the system. January 2016 Page 2 of 6 B723

25 DETAIL ESTIMATING ENERGY ATTENUATORS Unidirectional vs. Bidirectional Installations: The term unidirectional describes an installation configuration where traffic flow passes the energy attenuator system on one or both sides in the same direction from the upstream direction of travel (i.e. approaching the impact head of the energy attenuator). For unidirectional installations, there is no requirement for a transition panel to connect the energy attenuator to the concrete barrier because reverse direction impacts are not expected. Examples of unidirectional installations include, but are not limited to roadside shoulder installations on divided highways and oneway ramps as well as gore areas at freeway exit ramps or core-collector transfers. The term bidirectional describes an installation configuration where traffic flow passes the energy attenuator in the reverse / opposing direction of travel (i.e. approaching the leaving end / corner of the energy attenuator immediately adjacent to the concrete barrier). For bidirectional installations, there is a requirement for the contractor to install a transition panel to connect the energy attenuator to the concrete barrier in order to minimize the risk of a reverse direction impact snagging upon the rearmost fender panel of the energy attenuator. Examples of bidirectional installations include, but are not limited to undivided highways and narrow medians where reverse direction impacts are possible. The unidirectional / bidirectional designation is not required when specifying the single-sided tender items since the QuadTrend and BB-BEAT Systems are always physically connected to the concrete barrier. Single-Sided Installations: For single-sided installations, the granular base and earth or rock slopes for the roadway should be widened in accordance with the minimum dimensions detailed in the appropriate OPSD. Where the roadway is being widened for installation of the terminal, ensure that drainage requirements are properly addressed. Single-sided systems should not be installed in a location where there is a high probability of hits on the back side of the system such as in gore areas or on left shoulders adjacent to narrow medians. The area behind and beyond the system should be traversable and free of fixed objects. The minimum recommended traversable area should be 6 m wide, measured behind and perpendicular to the back of the rail, by 22 m long, measured from the front face of the system and parallel to the system. Reduced Exposure Systems: The reduced exposure tender item provides the Contractor with the option of supplying water filled energy attenuator system as an alternative to the conventional narrow energy attenuator systems. When a reduced exposure tender item is selected, January 2016 Page 3 of 6 B723

26 DETAIL ESTIMATING ENERGY ATTENUATORS the designer should confirm that the following requirements for water filled energy attenuator systems are satisfied: a) Water filled energy attenuator systems should be installed at an offset of not less than 2.0 m from the edge of the travelled way. b) When installed adjacent to an existing guide rail system, the clearance shall be less than or equal to 0.3 m or greater than or equal to 3.0 m. Otherwise, the area behind and beyond the water filled energy attenuator system shall be traversable and free of fixed objects. The minimum recommended traversable area should be 6 m wide, measured behind and perpendicular to the back of the system, by 22 m long, measured from the front face of the system and parallel to the system. c) At a minimum, the first 16 m of temporary concrete barrier should be placed tangential to the water filled energy attenuator system. Curb and Gutter: Wherever practical, the designer should eliminate the use of curb with gutter in advance of and along the length of energy attenuators. See the Roadside Safety Manual for additional information COMPUTATION These are Plan Quantity Payment items. The quantity is based on each installation. The unit of measurement for Energy Attenuators is each DOCUMENTATION The tender items are variation items (with the exception of single sided energy attenuators). Provide two columns on the quantity sheet to indicate whether each attenuator installation is a TL-2 or TL-3 configuration: TL-3 configurations are required for high-speed installations with posted speeds of 70 km/h and greater. TL-2 configurations may be used for low-speed installations with posted speeds of less than 70 km/h. January 2016 Page 4 of 6 B723

27 DETAIL ESTIMATING ENERGY ATTENUATORS Enter each installation in the Quantities Miscellaneous sheets as a separate line entry under the appropriate column heading. Enter the station at the back end of the system (at the interface between the energy attenuator and the concrete barrier or object) and indicate location, left, right, or median. Total each column and sum the TL-2 and TL-3 installations. For each permanent energy attenuator installation where there is a suitable existing concrete surface or pad, note in the location and position column of the Q-sheet: Install on Existing Concrete Surface or Pad, as applicable. Temporary energy attenuators are typically installed on an existing surface. For those locations where the existing surface is not suitable, a standard concrete pad should be provided. For those locations, note in the location and position column of the Q-sheet: Install on Concrete Pad. For all permanent installations, use the Energy Attenuator Permanent standard item for the appropriate application (i.e. Wide, Extra Wide, etc.). For all temporary installations, use the Energy Attenuator Temporary and Energy Attenuator Relocation standard items for the appropriate application (i.e. Wide, Extra Wide, etc.). The Energy Attenuator Temporary standard items pay for the supply, installation, and removal of the units. The total cannot exceed the largest number of units in place at any one time during the contract. The Energy Attenuator Relocation items are comprised of all relocations during the contract. Show the location of each Energy Attenuator, Permanent and/or Temporary, and each Energy Attenuator Relocation on the contract drawings with the appropriate notation (from Table 3 in OPSS.PROV 723) shown adjacent to the symbol. Single-Sided Installations: For single-sided installations, show the location of the roadway widening on the contract drawings (see section B206-1, "Earth Excavation (Grading)" for more information) with the appropriate OPSD number shown adjacent to the system. Also, show roadway widening on the cross sections. Payment for all grading shall be made under appropriate grading items. When a single-sided system is connected to existing concrete barrier, the designer should include payment in the Contract Documents for the removal of the 4.0 m section of existing concrete barrier and placement of a new 4.0 m section adjacent to each system. January 2016 Page 5 of 6 B723

28 DETAIL ESTIMATING ENERGY ATTENUATORS Documentation Accuracy Record stations to the nearest whole metre and indicate median, left, or right side of road. The quantity is the number of units required. January 2016 Page 6 of 6 B723

29 DETAIL ESTIMATING SODDING B803 SODDING OPSS GENERAL Sod The establishment of a permanent vegetative cover on roadsides is an integral part of road construction. Establishing permanent vegetative cover is accomplished by either seeding or sodding perennial seed mixes. Sodding uses perennial turfgrass mixes, pre-grown and rooted to specific size and density. Sodding is an erosion control measure for both the short term (construction) and the long term (maintenance). It has the advantage of instant ground cover and a clean, finished, aesthetically-pleasing appearance. Sod is applied to bare earth areas on the right-of-way. The application of topsoil (reference B802, Topsoil) prior to sodding is recommended. Sodding, is a more expensive alternative to seeding and shall be considered in the following situations; on existing sodded or lawn areas where construction activities will necessitate removal of the existing lawn, on channelized islands over 7.5 m in width from face to face of curb and gutter, on ditch bottoms having a 0 to 3% gradient, where there is concern for the susceptibility of the soil to erosion, on the slopes of ditches having a 3 to 5% gradient, on medians and boulevards in areas of high pedestrian traffic or on roads with an urban cross-section design, on earth slopes 2:1 and steeper where a clean, finished appearance is a consideration. However, there are other considerations to make when revegetating an earth slope. Design decisions shall be made based on discussions with environmental planners, geotechnical specialists and landscape architects. Placement of sod on slopes may require staking to hold the sod securely to the slope until the roots penetrate to provide stability. The decision to stake the sod is made by the Contractor placing the sod Maintenance There is a requirement for a 30 consecutive calendar day maintenance period to commence following completion of the sod placement. The maintenance will include any required watering and is bid as part of the Sod tender item. November 2015 Page 1 of 3 B803

30 DETAIL ESTIMATING SODDING REFERENCES CDED Section B802, Topsoil Specifications, Classifications and Use of Turfgrass Sod for Ontario TENDER ITEMS Sod (variation item) SPECIFICATIONS The requirements for Sod are contained in OPSS SPECIAL PROVISIONS Refer to Chapter 'E' of this Manual to review the applicable standard special provisions STANDARD DRAWINGS none DESIGN Refer to B802, Topsoil to establish and document topsoil requirements related to placement of sod. Specify Kentucky Bluegrass sod for areas that are sunny to slightly shady. Specify Kentucky Bluegrass / Fine Fescue sod for shadier areas. For further information, see the reference document: Specifications, Classifications and Use of Turfgrass Sod for Ontario COMPUTATION This is a Plan Quantity Payment item. The Sod item is measured in square metres from the design cross sections or scaled from the contract drawings for each location. On sloped earth areas, contour November 2015 Page 2 of 3 B803

31 DETAIL ESTIMATING SODDING measuring applies. For ditch slopes, the width of sodding required up both sides of the ditch will be taken as 1.0 m on either side from the bottom of each ditch slope Sources of Information The main sources of information are cross sections, field investigations, Property Agreements, the Regional Environmental Unit, and the Design Standards Section of the Design and Contract Standards Office DOCUMENTATION Sod is a variation item. The type of sod, Kentucky Bluegrass or Kentucky Bluegrass/Fine Fescue is specified. Each type of sod application shall be detailed in separate columns of the Quantities Miscellaneous sheet. Application areas are specified by station to station locations and offset position. For each area, enter the quantity in m² in a separate row. Show the sod locations on the contract drawings by symbol and legend. Standard symbols and legends shall be used. In some cases, the areas to be sodded may be too small or complicated to delineate, in which case the Quantity Sheet documentation will suffice Documentation Accuracy Station and quantity entries are recorded to the nearest whole metre. Offsets when required are recorded to 0.1 of a metre. Quantity entries are recorded to the nearest whole number. Spot checking required. November 2015 Page 3 of 3 B803

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33 DETAIL ESTIMATING TEMPORARY EROSION AND SEDIMENT CONTROL B805 TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES - OPSS GENERAL Construction activities frequently remove protective cover and expose soil to accelerated rates of erosion. Sediments generated thereby can be conveyed via runoff and channelized flow to impact sensitive receiving waters or other environmentally sensitive areas. Temporary erosion and sediment control measures are warranted on contracts which call for grading, drainage and other work that will disturb the earth surface. Measures shall be employed to minimize erosion and to remove sediments from water flowing from the construction site in order to meet environmental legislative requirements. OPSS 805 does not identify all available erosion and sediment control measures which the designer may consider, however, it does address most of the temporary measures commonly used during construction. The specification provides a large number of options for specifying either generic or specific items. When generic items are specified, the specification is designed so that the contractor is given the option of choosing from amongst a variety of items. This permits the cost-effective selection of end result performance items. In addition, OPSS 805 addresses the management of erosion and sediment control items which includes the requirements for maintaining erosion and sediment control measures and the removal of accumulated sediments from behind such measures. Design guidance provided in this section is not intended to supercede detail design of temporary erosion and sediment controls. Information within this section is intended to assist in the design and estimating required for the preparation of the contract package. The following constraints should be observed when considering the use of tender items found within OPSS 805: For control of erosion on bare earth surfaces other than temporary control in areas of channelized flow, reference should be made to OPSS 804 Construction Specification for Seed and Cover. All temporary measures identified in OPSS 805 are intended for removal at the completion of the contract or when permanent erosion and sediment control measures are in place and functioning. Permanent erosion and sediment control measures are not covered by OPSS 805. The measures identified in OPSS 805 are intended for use only during normal spring, summer, and fall construction. Special measures not addressed by OPSS 805 may be required when permanent cover will not be established prior to winter shut down. January 2016 Page 1 of 10 B805

34 DETAIL ESTIMATING TEMPORARY EROSION AND SEDIMENT CONTROL Winter construction may require special measures not addressed in OPSS 805. When identifying the location of rock flow check dams, the designer should consider their location and potential for an errant vehicle following the ditch line to impact rock flow check dams. A rock flow check dam presents a potential snagging point for an errant vehicle. Designers should try to locate rock flow check dams in roadside ditches as far from the traveled portion of the roadway as practical or where they will be located behind existing roadside barriers. Shielding of rock flow check dams should be considered as a last resort when the rock flow check dams need to be located where there is a high potential for impact Maintenance All temporary measures identified in OPSS 805 require inspection, maintenance and sediment removal to ensure that they function as intended. In selecting any temporary measures, consideration should be given to the length of time such measures shall be in place, the effectiveness of related erosion control measures such as seeding and cover specifications, resulting frequency of sediment removal and the removal of the measures at the end of the contract. The designer should consider the following factors when selecting temporary erosion and sediment control measures: Straw bales are intended for use over short periods of time to ensure protection during establishment of vegetative cover, and in conjunction with an operational constraint for a time limit (e.g. 45 days) for the placement of specified, permanent cover after the completion of grading. Placement of erosion and sediment control measures should always take into account the access needs for maintenance and final removal REFERENCES MTO Environmental Guide for Erosion and Sediment Control during Construction of Highway Projects HSB Provincial Engineering Memorandum , New Erosion and Sedimentation Control Program Design Policy TENDER ITEMS Unit of Measure - By Metre Light-Duty Sediment Barriers Light-Duty Straw Bale Barriers Light-Duty Silt Fence Barriers Light-Duty Fibre Roll Barriers January 2016 Page 2 of 10 B805

35 DETAIL ESTIMATING TEMPORARY EROSION AND SEDIMENT CONTROL Heavy-Duty Sediment Barriers Heavy-Duty Silt Fence Barriers Heavy-Duty Wire-Backed Silt Fence Barriers Berm Barriers Sandbag Barriers Fibre Roll Grade Breaks Turbidity Curtains Unit of Measure - By Each Flow Check Dams Straw Bale Flow Check Dams Fibre Roll Flow Check Dams Sandbag Flow Check Dams Rock Flow Check Dams Sediment Traps Slope Drains Diversion Ditches Sediment Traps for Dewatering Filter Bags Cofferdams SPECIFICATIONS Details of the work are contained in OPSS SPECIAL PROVISIONS Refer to Chapter E of this Manual to review the applicable special provisions. The timing for installation and removal of measures is specified in SSP 805F STANDARD DRAWINGS Applicable Standard Drawings are contained in the 219 series of the Ontario Provincial Standards Drawings (OPSD) and Ministry of Transportation of Ontario Drawings (MTOD) DESIGN Three approaches to temporary erosion and sediment control are addressed by OPSS 805 including: January 2016 Page 3 of 10 B805

36 DETAIL ESTIMATING TEMPORARY EROSION AND SEDIMENT CONTROL 1) the use of mitigation measures that control erosion by slowing the velocity of water in channelized flow; 2) the use of mitigation measures that control sedimentation by ponding water from overland flow and allowing sediment to settle out; and 3) the use of mitigation measures that minimize damage from sediment release by isolating environmentally sensitive areas and work areas. Under each approach a number of items are available for selection by the designer through OPSS 805. Table 1 provides design criteria and limits of use for temporary erosion and sediment control measures addressed in OPSS 805. The MTO Environmental Guide for Erosion and Sediment Control during Construction of Highway Projects shall be consulted for more detailed guidance on selection and design of temporary erosion and sediment controls including development of Erosion and Sediment Control Plans when required Slowing Water to Control Erosion in Channelized Flow The following tender items are available in OPSS 805 to minimize and control erosion of bare earth surfaces in channels, ditches and swales until such time as the specified permanent protection is provided: Flow Check Dams Straw Bale Flow Check Dams Fibre Roll Flow Check Dams Sandbag Flow Check Dams Rock Flow Check Dams Ponding Water to Control Sediment OPSS 805 addresses two kinds of temporary sediment control measures to pond water: sediment barriers; and sediment traps. The following sediment barrier tender items are available in OPSS 805 to prevent sediment from entering concentrated flows found in swales, ditches, and watercourses, or from reaching other sensitive locations including private property: Light-Duty Sediment Barriers Light-Duty Straw Bale Barriers Light-Duty Silt Fence Barriers January 2016 Page 4 of 10 B805