VOLUME #1 Special Provisions and Affected Vol. 2 Specifications - PowerPoint PPT Presentation

Standards Engineer’s First Roller VOLUME #1 Special Provisions and Affected Vol. 2 Specifications 2014 1

Incorporation of Accessibility Design Standards into Volume 1 2

F-3512 TACTILE WALKING SURFACE INDICATORS ( TWSI’S ) New SP outlining the installation requirements for TWSI’s . TWSI’s shall one of the approved cast-in-place, cast or ductile iron  products described in MS-13.1 and listed in MS-22.15. Multiple plates shall be bolted together with Stainless Steel bolts and nuts.  3

F-3512 TACTILE WALKING SURFACE INDICATORS ( TWSI’S ) From the Accessibility Standard (Part of detail drawing SC7 shown) TWSI’s shall be set back 150 to 200mm  from the back of curb. TWSI’s shall be 610 to 650 in depth and  a minimum width of 1500mm. For curb ramps and single transition  areas, TWSI’s shall extend the full width of the curb ramp/area. All TWSI’s shall have 6mm wide x 6mm  deep drain grooves at corners between the TWSI and the curb. Panel joints may be adapted for use if touching. 4

F-3512 TACTILE WALKING SURFACE INDICATORS ( TWSI’S ) Unless indicated otherwise on the contract drawings for blended transition areas  (dropped corners?) serving two crossing directions provide .3m gap between the TWSI sets. Plates shall be parallel with the curb radius (i.e. not necessarily perpendicular to the  direction of pedestrian travel). This will require the use of radius TWSI plates in some instances. Radius TWSI’s are available in various radii. Careful consideration of radius design  is required as the TWSI radius shall follow as close as possible the back of curb radius. Note Natural uncoated finish for concrete 5

F-3512 TACTILE WALKING SURFACE INDICATORS ( TWSI’S ) Tops of TWSI’s shall be aligned and level with the adjacent  concrete surface and installation in wet concrete shall be effective in permanently securing the TWSI in place once dry. Measurement will be the area of TWSI’s in m².  F-3510 and F-3511 (Sidewalk Construction Specs) also updated to  include TWSI’s . 4 Approved suppliers on approved list. MS-22.15 shown below.  6

F- 4070 MH’s, CB’s Ditch Inlets and Chambers Self-level Catch Basin frames now approved but limited to one  supplier at the moment. Requirements are described in MS-13.1 and the approved  supplier is listed in MS-22.15. Conditions of the approval have since been satisfied. Adapter plate required for square CB’s. 7

F-4080 Adjusting or Rebuilding MH’s CB’s …..  Same as F-4070, self level surface inlet Catch Basin Frames and Covers now approved.  From Page 5: 8

F-4080 Adjusting or Rebuilding MH’s CB’s …..  Lip of concrete that was previously allowed, to be prevented to reduce chances of being lifted by frost heave. (Page 6) Before Now 9

F-4081 Self Level Maintenance Hole Frame and Cover Installation on Existing/Retrofit structures  Structure to be minimum 250mm below surface depending on manufacturer. 150 to 230mm typical. East Jordan 250mm high so more room needed.  Section 7 modified to stress the importance of putting generous quantities of asphalt under the raised lip so it sits about 25 to 38mm higher than the surrounding asphalt before rolling. Also using better pushing tools than the sharp end of a shovel is suggested. 10

F-4081 Self Level Maintenance Hole Frame and Cover 11

F-4081 Self Level Maintenance Hole Frame and Cover  Section 8 now requires compacting to start from the outside and work towards the centre to ensure compaction of the material under the lip. 12

F-4081 Self Level Maintenance Hole Frame and Cover • New section 9 to stress that the upper frame is not to rest on the guide frame otherwise will loosen and rock causing noise complaints, possible damage to the frames and possible ejection of the cover, possibly leading to an accident. • Picture - 311 forces replaced original SL F&C with regular F&C after a noise complaint. • Changed back to SL before completion. 13

F-4100 PIPE SEWERS  Page 4 – Cored Tees approved for years but not mentioned in F-4100 and now they are. 14

F-4100 PIPE SEWERS  Gap at top of PVC sewer pipes when using Kor- n-seal connectors has been resulting in cracks/breakage during cleaning operations.  Obvert to be cut back 50mm to reduce stress on obvert when using Kor-n-seal. See page 5. 15

F-4451 WATERMAIN CLEANING AND STRUCTURAL LINING  Many clarifications made to ensure that the end result will be a structural lining with a sleeve/jacket not just a spray coating. Old spec was inconsistent. 16

F-4491 COMMISSIONING OF WATERMAINS  Page 3 Nozzles are no longer to be installed on hydrant laterals.  Nozzle removed from hydrant lateral on associated drawing W46. 17

F-4493 TRACING WIRE FOR WATERMAINS ….. From page 2 of 4493.  W36 revised to show  extension of wire for PEX. OK to use the same wire  as specified tracing wire is superior to wire specified in OBC and OK’d by John Buck. 18

VOLUME #2: Failed 1963 pilot using snow as a road surface Material Specifications, and Affected Detail Drawings 19

MATERIAL SPECIFICATIONS  The primary purpose of the material specifications is to outline the technical requirements for products prior to approval.  After approval, products are listed in the appropriate list of approved products.Water MW-19.15; Sewer ( TWSI’s ) MS-22.15. SALESMEN’S JUMP FOR JOY 20

SEWER MATERIAL Approved PVC sewer pipes at SPECIFICATIONS Lansdowne VOLUME 2 Cont’d 21

MS-13.1 MAINTENANCE HOLES CB’S, ICD’S AND TWSI’S  Double OPSD 705.020 Alternate “B” CB’s added. 22

MS-13.1 MAINTENANCE HOLES CB’S, ICD’S AND TWSI’S  Inspection Staff voiced concerns with removing covers using lift pockets.  Requested return of larger sniffer holes. 23

MS-13.1 MAINTENANCE HOLES CB’S, ICD’S AND TWSI’S For Storm and Sanitary  covers (S24, S24.1) sniffer hole to be increased to 25mm and to come with approved removable plug. Suppliers have 1 year to  clear old stock. 24

MS-13.1 MAINTENANCE HOLES CB’S, ICD’S AND TWSI’S  Insertion type plugs now for replacement only. Slider type now standard.  New types suitable for retrofitting CB’s with no sump (no room below outlet) added in categories 8, 9, 10 and 11. 25

MS-13.1 MAINTENANCE HOLES CB’S, ICD’S AND TWSI’S  Approved list showing changes in red 26

MS-13.1 MAINTENANCE HOLES CB’S, ICD’S AND TWSI’S  New categories 8 to 11 typically used for retrofit purposes only 27

MS-22.15 APPROVED SEWER PRODUCTS LISTING 28

MS-22.15 APPROVED SEWER PRODUCTS LISTING Cont’d Press-Seal RFS Nitrile added for Maintenance Holes. 29

MS-22.15 APPROVED SEWER PRODUCTS LISTING Cont’d  Star and PCHG now approved for Sanitary and Storm covers. 30

MS-22.15 APPROVED SEWER PRODUCTS LISTING Cont’d  East Jordan, Star and PCHG were all added for Self Level Frames.  Also approved for Valve Chambers. 31

MS-22.15 APPROVED SEWER PRODUCTS LISTING Cont’d  Internal Drop Tees added to the list. IPEX product  approved.  Associated drawing S12 updated to show correct flap configuration. 32

MS-22.15 APPROVED SEWER PRODUCTS LISTING Cont’d  Name changed for Rehau to Next Polymer – Supplier of PSM PVC Sewer and C900 and C905 Watermain pipe.  From MW-19.15 33

MS-22.15 APPROVED SEWER PRODUCTS LISTING Cont’d  For retrofit applications connecting sewer services in contaminated soils nitrile versions of Mission and Fernco found only an e-mail away in the UK . 34

WATER Lead Water Pipes in Bath England MATERIAL SPECIFICATIONS Volume 2 Cont’d 35

MW-18.1 WATERMAIN PIPE SECTION ADDED FOR PAVEMENT INSULATION FOR WATERMAINS AND SEWERS Insulation for use in roads over pipe trenches shall: be type Extruded Polystyrene Foam Insulation Boards  (XPS) in 600 x 2400 x 50mm size; meet the requirements of OPSS 1605;  Grade A (275 kPa compressive strength shall meet ASTM  C578 Type VI; Grade B (400 kPa compressive strength shall meet ASTM  C578 Type VII. 36

MW-19.15 APPROVED WATER DISTRIBUTION PRODUCTS LISTING 37

MW-19.15 APPROVED WATER DISTRIBUTION PRODUCTS LISTING  PCHG and Star now approved for supply of valve chamber covers. 38

http://www. l http://www. 53632 SEWER DETAIL DRAWINGS VOLUME 2 Cont’d 39

SEWER DETAIL DRAWINGS Drawing S11  Note 6 revised to acknowledge the accepted use of “Cored T’s”. 40

Half Way Point Straddling the border between Kentucky and Virginia 41

WATER DETAIL DRAWINGS VOLUME 2 Cont’d 42

WATER DETAIL DRAWINGS Drawing W10, W12, W13 Gate valve over access opening to be covered with a blind flange to keep out dirt . 43

WATER DETAIL DRAWINGS Drawing W31.1  Stand pipe moved away from valve box to prevent interference when using Key operator.  Water hammer arrester moved.  Sediment drain valves added. 44

WATER DETAIL DRAWINGS Drawing W31.2  Sediment drain valve added.  Single backwater preventer changed to dual type. 45