× Search
  1. Home
  2. General
  3. Infrastructure Development Processes
  4. Quality Assurance Information Requirements
    1. QA-1 Resource Consent Application Requirements
    2. QA-2 Works Undertaken By or For a Council
    3. QA-3 Development Works Approval
    4. QA-4 Survey Plan (s223) Approval
    5. QA-5 Final Sign Off (s224c) Application Requirements
    6. QA-6 As-Built Information
    7. QA-7 Bonds and Maintenance Fee
    8. QA-8 Building Consent Considerations
  5. Design Standards
    1. DS-1 General Provisions
    2. DS-2 Streetscape
    3. DS-3 Reserves
    4. DS-4 Transportation Network
    5. DS-5 Stormwater
    6. DS-6 Wastewater
    7. DS-7 Water Supply
    8. DS-8 Public Lighting
    9. DS-9 Network Utilities
    10. DS-10 Natural Hazards & Earthworks
    11. DS-11 Road Zone/Road Reserve Occupancy
    12. DS-12 Building Consent Considerations
  6. Standard Drawings
    1. SD-1 General Provisions
    2. Street design diagrams
    3. T100 Perspective Drawings
    4. T200 Streetscape
    5. T300 Reserves
    6. T400 Transport Network
    7. T500 Stormwater
    8. T600 Wastewater
    9. T700 Water Supply
    10. T800 Public Lighting
    11. AB As-Built Drawings
  7. Approved Materials
  8. Construction Standards
    1. CS-1 General
    2. CS-2 Site Clearance
    3. CS-3 Earthworks
    4. CS-4 Excavation
    5. CS-5 Excavation in Trench
    6. CS-6 Fill
    7. CS-7 Bedding & Backfill
    8. CS-8 Subsoil Drainage for Earthworks & Roads
    9. CS-9 Pipework
    10. CS-10 Pipe Fittings
    11. CS-11 Manholes & Rodding Eyes
    12. CS-12 Sumps
    13. CS-13 Trenchless Technology
    14. CS-14 Road Ripping
    15. CS-15 Road Pavement Layers
    16. CS-16 Kerb & Channel
    17. CS-17 Concrete Work
    18. CS-18 Carriageway Surfacing
    19. CS-19 Roadmarking
    20. CS-20 Berm Features
    21. CS-21 Street Structures
    22. CS-22 Road Maintenance
    23. CS-23 Grassing & Turfing
    24. CS-24 Vegetation Planting & Gardens
    25. CS-25 Reinstatement
  9. Inspection & Testing Requirements
    1. IT-1 General Provision
    2. IT-2 Streetscape
    3. IT-3 Reserves
    4. IT-4 Transportation Network
    5. IT-5 Stormwater
    6. IT-6 Wastewater
    7. IT-7 Water Supply
    8. IT-8 Public Lighting
    9. IT-9 Network Utilities
Infrastructure Development Code

DS-6.12 Rising Mains


Drawing Ref: T670

The following shall apply:

  1. Only PE80 or PE100 pipes conforming to AS/NZS 4130 shall be used for rising mains. The required minimum pressure rating for a rising main shall be PN 10.  Higher rated pipes may be necessary. Other materials may be considered by Council.
  2. Pipe selection shall take into account a 100 year service life and include derating due to operating temperature and derating due to 107 cycles of cyclic water hammer load causing pressure swings from 1.5P to 0.5P.
  3. A safety factor of not less than 1.25 shall also be included to determine the pipe pressure class.
  4. PE fittings fabricated from pipes shall be derated due to stress concentrations in the fabricated fittings. Manufacturer's recommendations shall be strictly followed with regard to the extent of derating required for each type of fabricated fitting.
  5. Wherever possible, the rising main shall be designed on a positive gradient avoiding high and low points, therefore minimising the need for air release and scour valves.
  6. PE pipes shall not be used for pipe bridges or within tunnels that are not backfilled unless the pipe is adequately anchored against flotation and thermal movement.
  7. To accommodate all out of balance forces on the main its installation and design shall be similar to that of a water main incorporating suitable anchorage at all changes of direction.
  8. Rising mains shall be installed with "sewer" marker tape laid continuously 200mm above the rising main. The tape shall include a metallic wire that can be detected from the surface.
  9. Where any section of a rising main is installed by trenchless technology, tracer wire shall be strapped to the pipe and fixed thereto by using a minimum of 2 complete wraps of 50mm wide heavy duty adhesive tape at a maximum of 3.0m intervals. Wire traces shall be continuous to allow an electrical current. Rising mains shall discharge into a receiving manhole in accordance with the detail on the Standard Drawings.
  10. Rising mains shall be a minimum of 76mm ID.

Definitions in this section



Tauranga City Council, Private Bag 12022, Tauranga, 3143, New Zealand  |  Terms of use

Back To Top