Hydrant Replacement Methods and Techniques

Size: px

Start display at page:

Download "Hydrant Replacement Methods and Techniques"

Phyllis McBride
5 years ago
Views:

1 Hydrant Replacement Methods and Techniques

2 Water Service Disruption Reports Are prioritized and submitted to the Clearances and Locations Work Group. City of Saskatoon - Water Service Disruption Report Memo # Location: WRR #: Call to Dispatch: Time Dispatched: Arrival Time: Completion Time: Crew Members: ; Date Initiated: ; Outage Notification Given: Yes; No; Type of Interruption Units Affected (Number without service) Water Main: Valve: ; Houses: ; Comments: Water Conn: Hydrant: ; Apartments: ; Comments: Curb Stop: ; (M/S ; P/S ; C/S ;) School: ; Comments: Curb Box: Raise ; Lower ; Business: ; Type: Primary Main: ; Private Leak: ; Other: Primary Valve: ; Frozen Conn: ; Valves out of Service V ALVES OPERATED Valve Off Crew On Crew Location of Valve GIS No. YY MMDD Time Initials YY MMDD Time Initials Hydrants out of Service Hydrant Off Crew On Crew Location of Hydrant GIS No. YY MMDD Time Initials YY MMDD Time Initials Connection drawings for: Excavation Obstructions: Additional Information Required: Tree: Comments: Correlation Required: Yes; No; Utility Pole: Comments: Slow Leak: Yes; No; Fence: Comments: Hydro Excavate: Yes; No; Vehicle: Comments: Washout Visible: Yes; No; Pavement: ; Concrete: ; Paving Stone: ; Blvd: : Broke into Sanitary Main: Yes; No; Other: Broke into Storm Main: Yes; No; Temporary Water Provisions: Traffic Controls: Water Trailer: (On Site); (Arranged For); Detour Required: Yes; No; Temporary Connection: (Installed); (Arranged For); Bus Route: Yes; No; From: ; To: ; Post for No Parking: Yes; No; Fill-up: (Time On); (Time Off); PROPERTY DAMAGE: Yes: ; No ; OTHER REMARKS / OBSERVATIONS:

3 Water Service Disruption Reports Section A of the Water Service Disruption Report. City of Saskatoon - Water Service Disruption Report Memo # Location: WRR #: Call to Dispatch: Time Dispatched: Arrival Time: Completion Time: Crew Members: ; Date Initiated: ; Outage Notification Given: Yes; No; Type of Interruption Units Affected (Number without service) Water Main: Valve: ; Houses: ; Comments: Water Conn: Hydrant: ; Apartments: ; Comments: Curb Stop: ; (M/S ; P/S ; C/S School: ; Comments: Curb Box: Raise ; Lower ; Business: ; Type: Primary Main: ; Private Leak: ; Other: Primary Valve: ; Frozen Conn: ; Valves out of Service VALVES OPERATED Valve Off Crew On Crew Location of Valve GIS No. YYMMDD Time Initials YYMMDD Time Initials

4 Water Service Disruption Reports Section B of the Water Service Disruption Report. Hydrants out of Service Hydrant Off Crew On Crew Location of Hydrant GIS No. YYMMDD Time Initials YYMMDD Time Initials Connection drawings for: Excavation Obstructions: Additional Information Required: Tree: Comments: Correlation Required: Yes; No; Utility Pole: Comments: Slow Leak: Yes; No; Fence: Comments: Hydro Excavate: Yes; No; Vehicle: Comments: Washout Visible: Yes; No; Pavement: ; Concrete: ; Paving Stone: ; Blvd: : Broke into Sanitary Main: Yes; No; Other: Broke into Storm Main: Yes; No; Temporary Water Provisions: Traffic Controls: Water Trailer: (On Site); (Arranged For); Detour Required: Yes; No; Temporary Connection: (Installed); (Arranged For); Bus Route: Yes; No; From: ; To: Post for No Parking: Yes; No; Fill-up: (Time On); (Time Off); PROPERTY DAMAGE: Yes: ; No ; OTHER REMARKS / OBSERVATIONS: TWE 03/0401

5 Clearances and Locations Work Group Provides: drawings, utility locations, location numbers and forms. Coordinates the removal of obstructions if required.

6 Daily Work Sheet The daily work sheet is created to provide other departments with the location of the Water & Sewer work being performed. DATE: Friday May 9-03 Water and Sewer Maintenance Section PIECOWYE:W&SMT1 STATUS LOCATION: REPAIR TYPE: PRIORITY JOB # Loc: ACTIVITY: GL SIGNING: GIS UTL>LOC: STAFFING: Current 1006 Tiffin Crescent Sanitary Connection MBL S/S LABOURERS - Parker/Klassen 2nd Massey Drive & Marr Avenue Water Main MP On Site BACKHOE OPERATOR - Dmytrowich Hold 175/303 Delaronde Road Repair C/B Lead MP On Site T/A OPERATORS - Pingue Hold Arnhem St. & McNaughton Avenue Hydrant (McAvity) MP On Site Hold Field House Water Connection MBL Crew :W&SMT2 STATUS LOCATION: REPAIR TYPE: PRIORITY JOB # Loc: ACTIVITY: GL SIGNING: GIS UTL>LOC: STAFFING: Hold Clarence Avenue - 8th St. - 9th ASt. Water Main MP S/S LABOURERS - Hold 15 Moxon Crescent Sanitary Connection MBL S/S BACKHOE OPERATOR - MBL BT/A OPERATORS - MBL MBL :W&SMT3 STATUS LOCATION: REPAIR TYPE: PRIORITY JOB # Loc: ACTIVITY: GL SIGNING: GIS UTL>LOC: STAFFING: Hold Dudley Street Cathodic Protection FMP N/A LABOURERS - MBL BACKHOE OPERATOR - MBL T/A OPERATORS - MBL Hold 8th Street Yard Cleanup Yard MBL N/A :W&SMT4 STATUS LOCATION: REPAIR TYPE: PRIORITY JOB # Loc: ACTIVITY: GL SIGNING: GIS UTL>LOC: STAFFING: MBL LABOURERS - Hold Isabella Street / Eastlake Avenue Repair C/B Lead MBL S/S BACKHOE OPERATOR - Hold Isabella Street / Eastlake Avenue Valve (WPL) MP S/S 1168 T/A OPERATORS - MBL MBL DAY OFF/EDO VACATION: SICK: OTHER: ADDITIONAL STAFFING: Ross, Young, Maskwa & Crews, Olchove, Hilton, Swidzinski Collins - Medical Loader - Landfill - Priority Legend (MP1) Maintenance Priority - (MBL) Maintenance Backlog - (MPS) Maintenance Program Support - (FMP) Funded Maintenance Program Pending Water & Sewer Work C STATUS LOCATION: REPAIR TYPE: PRIORITY JOB # Loc: ACTIVITY: GL SIGNING: GIS Hold Boychuck Dr. South of Taylor St. Storm MH F&C MBL Crew Hold Boychuck Dr. South of Taylor St. Storm MH F&C MBL Crew Hold 4200 Block Taylor Street Sanitary MH F&C MBL Crew 8575 Hold 412 Avenue C South Curb Stop (C&S) MP S/S Hold 213 Avenue I South Curb Stop (C&S) MP S/S Hold 4th Avenue & 23th Street San Bev Top MBL S/S 3813 Hold Ottawa Avenue / 20th Street San Bev Top FMP S/S 3231

7 Daily Work Sheet Section A Section A shows the tasks for each Supervisor IV. DATE: Friday May 9-03 Water and Sewer Maintenance Secti PIECOWYE:W&SMT1 STATUS LOCATION: REPAIR TYPE: PRIORITY JOB # Loc: ACTIVITY: GL Current 1006 Tiffin Crescent Sanitary Connection MBL nd Massey Drive & Marr Avenue Water Main MP Hold 175/303 Delaronde Road Repair C/B Lead MP Hold Arnhem St. & McNaughton Avenue Hydrant (McAvity) MP Hold Field House Water Connection MBL :W&SMT2 STATUS LOCATION: REPAIR TYPE: PRIORITY JOB # Loc: ACTIVITY: GL Hold Clarence Avenue - 8th St. - 9th St. Water Main MP Hold 15 Moxon Crescent Sanitary Connection MBL MBL MBL MBL :W&SMT3 STATUS LOCATION: REPAIR TYPE: PRIORITY JOB # Loc: ACTIVITY: GL Hold Dudley Street Cathodic Protection FMP MBL MBL MBL Hold 8th Street Yard Cleanup Yard MBL :W&SMT4 STATUS LOCATION: REPAIR TYPE: PRIORITY JOB # Loc: ACTIVITY: GL MBL Hold Isabella Street / Eastlake Avenue Repair C/B Lead MBL Hold Isabella Street / Eastlake Avenue Valve (WPL) MP MBL MBL DAY OFF/EDO VACATION: SICK: Ross, Young, Maskwa & Crews, Olchove, Hilton, Swidzinski Collins - Medical Priority Legend (MP1) Maintenance Priority - (MBL) Maintenance Backlog - (MPS) Maintenance Program Support - (FMP) F

8 Daily Work Sheet Section B Section B shows the rest of the row of tasks for each Supervisor IV. on SIGNING: GIS UTL>LOC: STAFFING: COMMENTS: S/S LABOURERS - Parker/Klassen On Site BACKHOE OPERATOR - Dmytrowich On Site T/A OPERATORS - Pingue Gravel required to complete On Site Crew SIGNING: GIS UTL>LOC: STAFFING: COMMENTS: S/S LABOURERS - No homes out! S/S BACKHOE OPERATOR - T/A OPERATORS - SIGNING: GIS UTL>LOC: STAFFING: COMMENTS: N/A LABOURERS - BACKHOE OPERATOR - T/A OPERATORS - N/A SIGNING: GIS UTL>LOC: STAFFING: COMMENTS: LABOURERS - S/S BACKHOE OPERATOR - S/S 1168 T/A OPERATORS - OTHER: ADDITIONAL STAFFING: COMMENTS: Loader - Landfill - Funded Maintenance Program

9 Daily Work Sheet Section C Section C shows work pending. Pending Water & Sewer Work STATUS LOCATION: REPAIR TYPE: PRIORITY JOB # Loc: ACTIVITY: GL SIGNING: GIS Hold Boychuck Dr. South of Taylor St. Storm MH F&C MBL Crew Hold Boychuck Dr. South of Taylor St. Storm MH F&C MBL Crew Hold 4200 Block Taylor Street Sanitary MH F&C MBL Crew 8575 Hold 412 Avenue C South Curb Stop (C&S) MP S/S Hold 213 Avenue I South Curb Stop (C&S) MP S/S Hold 4th Avenue & 23th Street San Bev Top MBL S/S 3813 Hold Ottawa Avenue / 20th Street San Bev Top FMP S/S 3231

10 Pick up Materials The Supervisor IV will pick up the required materials

11 Marking Utilities Representatives from utility companies can field locate their lines if required. APWA Colour Codes

12 Choosing Equipment Dimensions of the excavation will determine the type of shoring selected.

13 Trailer Placement Locate trailers clear of the excavation.

14 Emergency Water Supply Trailer Water trailers and temporary hook ups are options to consider when there is a water outage..

15 Cutting Asphalt or Concrete Cut the asphalt or concrete before excavating..

16 Recycling Asphalt or Concrete The asphalt or concrete can be recycled.

17 Excavation Excavate on the opposite side of the sewermain.

18 Hydrant Lead Valve In certain areas a hydrant lead valve must be installed. Hydrant Lead Valve Water Main

19 Spoil Pile The trench will be sorted into salvageable material and non-salvageable material.

20 Utility Depths Establish utility depths using the feeling rod.

21 Supported Utility Other Utilities must be supported Gas Line Gas Line Supported from Above

22 General Excavation Safety

23 Gas Line Safety In the event of a natural gas line hit the machine shall be immediately turned off

24 Power Line Safety Should a power line come to rest on the equipment, do not exit the equipment

25 Excavation Safety Don't get between the excavator bucket and the truck being loaded. Danger Zone

26 Trench Cave-in Protective structures must be used.

27 Preparing for Repair

28 Shoring on Trailer Inspect the shoring before use.

29 Unloading Shoring Hook up shoring lifting chains appropriately

30 Shoring Installation Use excavator/backhoe to install shoring.

31 Hydraulic Expansion of Shoring Expand shoring side panels to be tight against the excavation walls.

32 Tool Disinfection All tools must be disinfected prior to use on a water main.

33 Tool Disinfection Soak items with disinfectant solution (Min 5% Sodium Hypo-chlorite solution).

34 Enter Excavation Bottom Labourer may enter excavation.

35 Three Points of Contact Keep three point of contact with the ladder. Point of Contact Point of Contact Point of Contact

36 Submersible Pump Should an excess amount of water be observed in the trench, install a submersible pump.

37 Lead Replacement Extend lead replacement past the face of curb.

38 Secure Hydrant Existing hydrant secured.

39 Cut Pipe Cut pipe using the quickie saw.

40 Cutting A/C Pipe Tile cutters shall be used for A/C pipe. Keep pipe wet while cutting to minimize airborne particles.

41 Hydraulic Pipe Cutters Hydraulic cutters can be used on CI pipe.

42 Remove Hydrant Remove hydrant.

43 Expose Drain Pipe Expose drain pipe if applicable. Hydrant Drainage Pipe Water Main Sewer Main

44 Blocking off Drain Pipe Block off drain pipe. Cement Plug Expanding Sewer Drain Plug Water Main Sewer Main

45 Add Bedding Have Excavator/Backhoe add crushed rocks for bedding and drain pit.

46 Level Base Level base for new hydrant.

47 Level Concrete Block Place and level concrete block.

48 Measurement for Pipe Measurement from old pipe.

49 New Pipe Cut and file edge of new pipe.

50 Clean Pipe Clean remaining pipe to facilitate coupler.

51 Install Coupler Sliding coupler over one end of pipe.

52 Bolt Torque Pattern Bolt torque pattern.

53 Protecto Caps Maxi-fit couplers use Protecto caps.

54 Support Coupler Support coupler with treated blocks

55 Hydrant Installation

56 Check Hydrant Rubber Check the hydrant rubber. Hydrant Rubber

57 Grease with Lubricant Grease pipe and hydrant with lubricant.

58 Hydrant Lifting Apparatus Connect the new hydrant to the hydrant lifting apparatus.

59 Lower Hydrant Lowering hydrant.

60 Aligning Hydrant Aligning Hydrant with the new pipe.

61 Check Hydrant Check level and position

62 Hydrant Breakaway Flange Set the height of the hydrant breakaway flange.

63 Open Hydrant Open hydrant port & attach hose.

64 Connect Pipe and Hydrant Connecting pipe and hydrant.

65 Install Blocks Install treated wooded thrust block behind the hydrant.

66 Treated Wooden Blocks Prevent the hydrant from pushing back new pipe when under pressure. Treated Wooden Blocks Water Main

67 Attaching a Sacrificial Anode

68 Anodes The 36-lb. sacrificial anode must be installed on metallic pipe

69 Preparation for Anode Installation File pipe to bare metal at the point of anode wire attachment.

70 Cadweld Charge Prep Cadweld with charge.

71 Sleeve on Anode Wire Insert stripped anode wire into sleeve.

72 Attach Wire to Pipe Attach the anode s wire to pipe, with the Cadweld connector.

73 Lighting Cadweld Prepare to light Cadweld. A face shield and goggles must be worn when igniting the Cadweld.

74 Cadweld lit. Ignite Charge

75 Check Weld Check that weld is attached.

76 Protect Weld Protect the weld from corrosion.

77 Wet Anode Soak anodes with water before backfilling.

78 Post-Repair

79 Exit Excavation Remove all hand tools from excavation. Exit and remove ladder.

80 Throttle Valve Attach throttle valve and hose.

81 Throttle valve Disinfect throttle valve.

82 Open Hydrant Opening hydrant. Operating Nut

83 Hydrant Flushing Open valve and and hydrant.

84 Water Testing Test water for turbidity, chlorine and bacteria.

85 Close Hydrant Close the hydrant slowly.

86 Compression Hydrants Compression hydrants do not require excessive force to close.

87 Ensuring Hydrant Closure Ensure hydrant is closed.

88 If Hydrant will not Close If hydrant is not closing down properly, re-flush.

89 When Hydrant is Closed When the water flow has stopped. Operating Nut

90 Hydrant Barrel Check for proper drainage from the barrel.

91 Port Caps Replace the port cap. Port Caps

92 Closing Caps Once the hydrant has drained completely, tighten the port caps with a hydrant wrench.

93 Checking for Leaks Check repair for leaks.

94 Shoring Removal Excavator/Backhoe operator removes shoring from excavation, placing it on a trailer.

95 Backfilling

96 Add Crushed Rock Install crushed rock.

97 Excavation Backfilling Remove unsuitable material below pipe.

98 Hydrant alignment Check alignment.

99 Backfilling Use clean backfill material.

100 Non-shrink Backfill Non-shrink backfill shall be used where concrete or brick will be replaced.

101 Backfilling Other Utilities Ensure utilities are supported according to the specifications of the owner of the utility.

102 Acceptable Backfill Material Acceptable quality of backfill material

103 Methods of Compaction Mechanical Methods of compaction are required.

104 Hydraulic Tamper Hydraulic tamper [excavator attachment] cannot be used closer than 1m [3ft.] directly above pipe or service.

105 Walk behind vibratory compactor. Walk Behind Tamper

106 Handheld Plate Tamper Backfill is 150mm [6inch.] lifts.

107 Vibratory Roller Vibratory roller is best suitable for larger excavations and should be used in 150mm [6 inch.] lifts.

108 Bucket Tamping Bucket tamping should be avoided.

109 Finished Backfill Leave adequate room for asphalt or concrete as per the Roadway Section s instruction.

110 Road Signs Remove unnecessary road signs.

111 Site Restoration Others will perform the site restoration.

112 Are there any Questions?

Water Connection Repair Method and Techniques

Water Connection Repair Method and Techniques LINE LOCATES APWA Colour Codes Representatives from utility companies can field locate their lines if required. Excavation Ensure excavation is on the opposite