To receive future notification of specification revisions, provide your address to Bruce Peters at:

Transcription

1 PUBLIC WORKS DEPARTMENT SERVICE DES TRAVAUX PUBLICS Engineering Division Division de l ingénierie To all Standard Construction Specification Holders: March 10, 2003 Specification book holders are responsible for ensuring that their specification books are kept up to date. The City of Winnipeg will no longer be printing new or revised specifications for general distribution to specification holders. Future notification of new or revised specifications will be provided by . To receive future notification of specification revisions, provide your address to Bruce Peters at: BPeters@winnipeg.ca All current specifications and revisions are on the City of Winnipeg Web Site at: Accompanying this letter is an information sheet summarizing the revisions. Concerns regarding Division 2 General Requirements should be directed to: Terry Whiteside at: TWhiteside@winnipeg.ca or phone Concerns regarding Division 4 Surface Works should be directed to: Darwin Kupskay at: DKupskay@winnipeg.ca or phone: DK/gf Darwin Kupskay, P. Eng. Research and Standards Engineer Pacific Avenue 1155, avenue Pacific, bureau 106 Winnipeg Manitoba R3E 3P1 Fax/télec. (204)

2 2 March 10, 2003 REVISION INFORMATION FOR STANDARD CONSTRUCTION SPECIFICATIONS This document is to provide information relating to: 1. Summary of Specification Revisions 2. Review of Division 2 - General Requirements 3. Review of Page and Old Format Specification Revisions 4. Review of New Four Section Specifications 5. Review of revised and new Standard Details 1. Summary of Specification Revisions The Surface Works Specification Revisions have been changed by Committee. This Committee was made up of representatives of the users that consisted of the following: City of Winnipeg Consultants Contractors Fred Corey Scott Payne Boris Gavrailoff Ken Turko Vic Neufeld Barry Brown Ken Boyd Dave Krahn Gary Kohut Rob Zanewich Leonard Wiens Terry Whiteside A list of all comments and concerns were developed and the list was prioritized. A decision was made by the committee to only deal with the highest priority issues, which have resulted in the 2003 revisions.

3 3 Division 4 - The Surface Works specifications summary Page Revisions: CW 3120 Installation of Subdrains CW 3130 Supply and Installation of Geotextile Fabrics CW 3410 Asphaltic Concrete Pavement Works CW 3510 Sodding Old Format: CW Portland Cement Concrete Pavement Works New Four-Section Format: CW Sub-grade, Sub-base and Base Course Construction CW 3150 Gravel Surfacing CW 3235 Renewal of Existing Miscellaneous Concrete Slabs CW 3240 Renewal of Existing Curbs CW 3250 Joint and Crack Maintenance CW 3450 Planing of Pavement

4 4 2. Review of Division 2 - General Requirements Standard Provisions have been deleted and are replaced by General Requirements. General Requirements have been written in the new specification format and separated into 3 specifications as follows: CW 1110 General Instructions CW 1120 Existing Services, Utilities, and Structures CW 1130 Site Requirements Relocation of and revisions to the clauses contained in CW 1100 R4 Standard Provisions are as follows: Clause 1.1 Variations of Working Days Included with Supplemental Conditions where applicable. Clause 1.2 Record of Working Days - Included with Supplemental Conditions where applicable. Clause 1.3 Restoration of Boulevard or Grassed Areas Included in CW 1130-R1. Revised 20 working days to time indicated in specifications. Added that Contract Administrator may direct restoration work be completed before starting work in subsequent areas if restoration is falling behind. Clause 2. Existing Services, Utilities and Trees Existing services and utilities included in CW 1120-R1. Existing trees included in Supplemental Conditions. Clause 3. Shop Drawings and Samples Included in CW 1110-R1 Revised to Shop Drawings and Submittals. Added submission procedure. Revised sheet size to be appropriate for item or information being depicted. Revised 1 transparency and 4 copies to 5 copies. Clause 4. Protection of Survey Bars Included in CW 1130-R1. Revised clauses to current requirements of Geomatics Branch. Clause 5. Stakes and Marks Included in CW 1130-R1. Clause 6. Contractor to Notify Utilities and Other Authorities Included in CW 1120-R1. Clause 6.1 Temporary Markers for Underground Utilities Included with CW 1120-R1. Added Tree Planting Spots with color green. Clause 7. Deviations Occasioned by Other Structures Included with CW 1120-R1. Deleted this clause and replaced with Conflict With Existing Services, Utilities and Structures. Clause 8. Gas Mains, Underground Street Lighting Cables and Underground Traffic Signal Cables - Included with CW 1120-R1. Clause 9. Inspections of Existing Catch Basins - Included with CW 1120-R1. Added inspection of manholes.

5 5 Revised to indicate the City and Contractor will share costs to clean catch basins and manholes as determined by Contract Administrator after construction is complete. Clause 10. Operating Valves on Watermains and Feedermains - Included with CW 1120-R1. Revised to indicate notification for valve operation is to be made at least the day before being required. Clause 11. Shutdown of Existing Watermains - Included with CW 1120-R1. Revised notification to premises of a planned watermain shutdown into a table format. Added notification to premises of an unplanned watermain shutdown. Added planned watermain shutdown to a school to be done outside of normal operating hours. Added planned watermain shutdown to a business or institution that depends on water supply for their operation is to be scheduled to suit the business or institution. Clause 12. Water Used by Contractor - Included with CW 1120-R1. Clause 13. Surface Restoration - Included with CW 1130-R1. Clause 14. Construction Traffic - Included with CW 1130-R1. Clause 15. Traffic Control and Maintenance of Access - Included with CW 1130-R1. Clause 16. Dust Nuisance - Included with CW 1130-R1. Clause 17. Project Information Signs - Included with CW 1130-R1. Clause 18. Construction Safety in and Around Landfills - Included with CW 1130-R1. 3. Review of Page and Old Format Specification Revisions Revisions in the following specifications have been highlighted in yellow. CW 3120 Installation of Subdrains - Section Page 3, Revised material properties CW 3130 Supply and Installation of Geotextile Fabrics - Section.4 Page 2, Revised material properties

6 6 CW 3410 Asphaltic Concrete Pavement Works CW 3510 Sodding - Section 7 - Page 8, Revised Table CW 3410-R5.1 Aggregate Gradation Limits for Type III (Base Course). - Section Pages 11 & 12, Revised Placing widths of the Asphaltic Concrete Paving Mixture - Section Page 12, Revised to cover Main Line Paving, Tie-ins and Approaches - Section Page 12, Revised to cover Asphalt Patches - Section Page 15, Revised Requirements after Final Rolling - Sections 12.4 and Page 18, Added measurement and payment clauses for Asphalt Patches - Sections 13.1 and Page 18, Revised payment clauses to include Main Line paving, Tie-ins and Approaches - Section Page 7, Revised Basis of Payment CW Portland Cement Concrete Pavement Works - Section Clarified Coarseness Factor - Section Added table of aggregate tests - Section Revised Aggregate Gradation Limits Type 1 (all except sidewalks) - Section Added Aggregate Gradation Limits Type 2 (sidewalks) - Section Revised Air-Entraining Admixture and Chemical Admixtures - Section General Revisions - Section Revised Hot Poured Sealer - Section Revised Mix Design Statement A Mix Design Statement annually for each type of concrete for all concrete works must be submitted to the Research and Standards Engineer - Section Revised Allowable Deviation from the Job Mix Formula - Section Revised Concrete Strength and Workability - Section Revised Restrictions on the Use of Fly Ash in Concrete - Section Revised Early Opening of Pavements - Section Added Plant Quality Control with submissions to the Research and Standards Engineer weekly - Section 7 - Added to Supply of Materials; approved concrete suppliers - Section Revised compressive strength clause - Section 13.1,13.2 & Revised and Added to payment clauses

7 7 4. Review of New Four Section Specifications Summary of New Four Section Format: 1. Description 2. Materials 3. Construction Methods 4. Measurement and Payment a) The specifications have been written in a plain English, streamlined format and unnecessary wording has been eliminated where possible. b) Clauses begin with an active command where possible and are written to the Contractor unless specifically stated otherwise. c) The phrases the Contractor shall and shall be are not used but are understood to be included in the instructions contained in the specifications. d) The phrase at own expense is understood to mean the Contractor s expense. e) Capitalized words and terms contained in the Standard Construction Specifications are those terms included in clause GC:1 Definitions of the General Conditions for Construction Contracts with the City of Winnipeg. f) Changes to the previous thirteen-part format: Part 1 General Conditions: Deleted Part 2 Definitions: Now included in Section 1. Description Part 3 Description: Now Section 1. Description. Part 4 Contract Drawings: Deleted Part 5 Materials: Now Section 3. Materials Section 5.1 Supply, Handling and Storage of Materials Moved to CW General Instructions. Specific requirements if applicable will appear in Section 2. Materials, in the new format. Section 5.2 Testing and Approval Moved to CW General Instructions Part 6 Design Requirements: Now included in Section 2. Materials Part 7 Delivery of Pipe: Deleted Part 8 Equipment: Moved to CW 1110 General Instructions Specific Equipment requirements if applicable will appear in Section 3. Construction Methods, in the new format Part 9 Construction Methods: Now Section 3. Construction Methods Part 10 - Quality Control: Now included with Section 2. Materials or Section 3. Construction Methods Clause 10.2 Inspection: Moved to CW 1110 General Instructions Part 11 - Deleted Part 12 Method of Measurement: Now included in Section 4. Measurement and Payment Part 13 Basis of Payment: Now included in Section 4. Measurement and Payment

8 8 CW Sub-grade, Sub-base and Base Course Construction CW 3150 Gravel Surfacing - Section Removal of Granular as Sub-base Material, - Section Revised LA Abrasion limits and testing standard - Section Removed Asphalt Cuttings as Sub-base material, - Section Added Imported Fill Material - Section Revised Pavement Removal - Section Revised Preparation of Sub-grade and Placement of Sub-base Material - Section Revised Placement of Base Course Material - Section Added Placement of Imported Fill - Section Revised Grading of Boulevards - Section Added Grading of Ditches - Section Added Concrete Bases - Section Revised Pavement Removal - Section Revised Crushed Sub-base material - Section Added Ditch Grading - Section Added Ditch Excavation - Section Added Removal of Concrete Bases - Section Revised Surfacing Material grading requirements - Section 3 - Revised Construction Methods to cover granular surfacing of shoulders - Section Revised payment clause for Surfacing Material CW 3235 Renewal of Existing Miscellaneous Concrete Slabs - Removed Bonding Agent and Miscellaneous Materials - Section Added Reinforcing Steel - Section Revised Construction Methods - Section Added separate payment clause for Removal of Miscellaneous Concrete Slabs - Section Added separate payment clause for Installation of Miscellaneous Concrete Slabs - Section Revised payment clause for Renewal of Miscellaneous Concrete Slabs CW 3240 Renewal of Existing Curbs - Removed Miscellaneous Materials - Section Added Reinforcing Steel - Section Revised Construction Methods - Section Added separate payment clause Concrete Curb Removal - Section Added separate payment clause Concrete Curb Installation - Section Revised payment clause Concrete Curb Renewal CW 3250 Joint and Crack Maintenance - Section Revised material property requirements for Joint Sealant - Removed Miscellaneous Materials - Section Revised Joint Cleaning - Section Revised Crack Cleaning

9 9 CW 3450 Planing of Pavement - Section Revised Joint and Crack Sealing - Section Revised Longitudinal Joint and Crack Filling (greater than 25mm in width); - Section Revised Reflective Crack Maintenance - Section 4 - Removed Joint Cleaning and Crack Cleaning - Section Revised Joint Sealing - Section Revised Crack Sealing - Section Revised Longitudinal Joint and Crack Filling (greater than 25mm width) - Section Revised Reflective Crack Maintenance During the Warranty Period - Section 3 Revised Construction Methods - Section 4 - Revised Measurement and Payment 5. Review of Revised and New Standard Details Revised Standard Details: SD-200 Curb and Gutter SD-201 Mountable Curb SD-205 Barrier Curb (Dowelled) SD-207 Concrete Pavement Widening SD-208 Pavement Widening (Concrete Pavement c/w Asphalt Overlay) SD-210A Longitudinal Joint for Concrete Pavement SD-210B Tie Bar Installation for Lane-at-a-Time Paving Where Bending of Tie Bars is Required SD-211A Construction Joint and Contraction Joint for Reinforced Concrete Pavement SD-211B Construction Joint and Contraction Joint for Plain Concrete and Plain-Dowelled Pavements SD-213B Full-Depth Patches Details of Moving and Tied Joints SD-214A Longitudinal Joint Repair Details Full-Width Patch SD-214B Longitudinal Joint Repair Details Lane-at-a-Time Patch SD-214C Longitudinal Joint Patch Details One Side Only SD-215 Placement of Steel in Plain Dowelled Concrete Pavement SD-216 Placement of Steel Reinforcement in Reinforced Concrete Pavement; 5000mm Joint Spacing SD-217 Layout for Type A and B Bar Mat Reinforcement; 5000 Joint Spacing SD-220A Catchbasin and Manhole Isolation Detail (New Pavements) SD-226A Monolithic Concrete Median Slab SD-226B Safety Median SD-229A Ramp Curb Layout Intersections SD-229B Ramp Curb Layout Medians and Approaches SD-229C Ramp Curb for Concrete Pavement SD-229D Ramp Curb for Asphalt Overlay SD-229E Ramp Curb Construction Detail SD-232 Private Approach on Regional Streets (With Barrier Curb) SD-234 Private Approach on Regional Streets (With Ditch Drainage) SD-235 Residential Approach Concrete (With Existing Barrier Curb) SD-236 Residential Approach Concrete (With Existing Lip Curb) SD-239 Residential Approach Gravel, Concrete or Asphalt

10 10 New Standard Details: SD-202A 75mm Lip Curb SD-202B 40mm Lip Curb SD-202C Modified Lip Curb SD-203A Barrier Curb (Separate) SD-203B Modified Barrier Curb SD-206A Barrier Curb Replacement SD-206B Safety Curb SD-227A Concrete Median Slab SD-227B Concrete Splash Strip SD-228A Concrete Sidewalk SD-228B Monolithic Curb and Sidewalk SD-228C Miscellaneous Isolations SD-237A Residential Approach-Paving Stone (With Existing Barrier Curb) SD-237B Residential Approach-Asphalt (With Existing Barrier Curb) SD-238A Residential Approach-Paving Stone (With Existing Lip Curb) SD-238B Residential Approach-Asphalt (With Existing Lip Curb) Deleted Standard Details: SD-203 SD-206 SD-227 SD-233 SD-237 SD-238 Barrier Curb Separate Barrier Curb Replacement 100mm Concrete Median Slab Private Approach on Regional Streets with Lip Curb Residential Approach Asphalt or Paving Stone / to be used on streets that have existing barrier curb type pavements Residential Approach Asphalt or Paving Stone / To be used on streets that have existing lip curb or rolled curb type pavements