Download original attachment
(PDF file)
This is an HTML version of an attachment to the Official Information request 'Central interceptor - non transparency'.









WSL: CENTRAL INTERCEPTOR MAIN WORKS PROGRAMME (for LGOIMA)
11 May 2019
Activity Name
2019
2020
2021
2022
2023
2024
2025
2026
F
A
J J A S
D J F A J J A S
D J F A J J A S N D J F A J J A S
D J F A J J A S N D J F A J J A S N D J F A J J A S
D J F A J J A S N D
WSL: CENTRAL INTERCEPTOR MAIN WORKS PROGRAMME (for LGOIMA)
MILESTONES
CONTRACT SIGNED
CONTRACT SIGNED
PROJECT COMMENCMENT DATE
PROJECT COMMENCMENT DATE
CI MAIN PHYSICAL WORKS START
CI MAIN PHYSICAL WORKS START
CONTRACTOR'S DESIGN COMPLETE
CONTRACTOR'S DESIGN COMPLETE
SECTION 1: MPS OPERATIONAL
SECTION 1: MPS OPERATIONAL
SECTION 2: SOUTHERN SYSTEM FULLY OPERATIONAL (LATE DATE)
SECTION 2: SOUTHERN SYSTEM FULLY OPERATIONAL (
PROJECT COMPLETION
PROJECT COMPLETION
NORTHERN SECTION OPERATIONAL
NORTHERN SECTION OPERATIONAL
PRE-CONSTRUCTION DOCUMENTATION
PRE-CONSTRUCTION DOCUMENTATION
PRE-CONSTRUCTION DOCUMENTATION
DESIGN
Shafts
SHAFT DESIGN
SHAFT DESIGN
Main Tunnels
MAIN TUNNEL DESIGN
MAIN TUNNEL DESIGN
Link Sewer Tunnel
LINK SEWER TUNNEL DESIGN
LINK SEWER TUNNEL DESIGN
ATF Building
AIR TREATMENT FACILITY BUILDING DESIGN
AIR TREATMENT FACILITY BUILDING DESIGN
PROCUREMENT
PROCUREMENT
PROCUREMENT
POST CONSTRUCTION DOCUMENTATION
POST CONSTRUCTION DOCUMENTATION
POST CONSTRUCTION DOCUMENTAT
MAIN TUNNEL & SHAFTS - SOUTHERN SECTION
Mangere Pumping Station Shaft
ESTABLISHMENT
ESTABLISHMENT
SHAFT EXCAVATION
SHAFT EXCAVATION
TUNNEL SHAFT JUNCTION WORKS
TUNNEL SHAFT JUNCTION WORKS
DISESTABLISHMENT
DISESTABLISHMENT
PS23 SHAFT
ESTABLISHMENT
ESTABLISHMENT
SHAFT EXCAVATION
SHAFT EXCAVATION
SHAFT LINING WORKS
SHAFT LINING WORKS
TUNNEL SHAFT JUNCTION WORKS
TUNNEL SHAFT JUNCTION WORKS
SURFACE WORKS
SURFACE WORKS
KEITH HAY SHAFT
ESTABLISHMENT
ESTABLISHMENT
SHAFT EXCAVATION
SHAFT EXCAVATION
SHAFT LINING WORKS
SHAFT LINING WORKS
TUNNEL SHAFT JUNCTION WORKS
TUNNEL SHAFT JUNCTION WORKS
DISESTABLISHMENT
DISESTABLISHMENT
MAY ROAD LS-C DROP SHAFT
ESTABLISHMENT
ESTABLISHMENT
Documentation
Procurement
Tunnelling Works
MSP Construction
Milestone
Page 1 of 5
* Baseline Programme yet to be finalised, some dates subject to change 
Design
Shaft Construction
Sewer Connections & Chambers
ATF Construction
WSL: CENTRAL INTERCEPTOR MAIN WORKS PROGRAMME (for LGOIMA)
11 May 2019
Activity Name
2019
2020
2021
2022
2023
2024
2025
2026
F
A
J J A S
D J F A J J A S
D J F A J J A S N D J F A J J A S
D J F A J J A S N D J F A J J A S N D J F A J J A S
D J F A J J A S N D
SHAFT EXCAVATION
SHAFT EXCAVATION
SHAFT LINING WORKS
SHAFT LINING WORKS
TUNNEL SHAFT JUNCTION WORKS
TUNNEL SHAFT JUNCTION WORKS
SURFACE WORKS
SURFACE WORKS
Main Sewer Tunnelling Works (South)
ASSEMBLE AND LAUNCH TBM
ASSEMBLE AND LAUNCH TBM
MANUFACTURE SEGMENTS (SOUTHERN TUNNEL SECTION) *
MANUFACTURE SEGMENTS (SOUTHERN TUNNEL SECTION) *
TUNNEL DRIVE SOUTH
TUNNEL DRIVE SOUTH
WELDING AND FINISHING WORKS
WELDING AND FINISHING WORKS
MAIN TUNNEL & SHAFTS - NORTHERN SECTION
May Rd Work Shaft
ESTABLISHMENT
ESTABLISHMENT
SHAFT EXCAVATION
SHAFT EXCAVATION
SHAFT LINING WORKS
SHAFT LINING WORKS
TUNNEL SHAFT JUNCTION WORKS
TUNNEL SHAFT JUNCTION WORKS
INSTALL TEMPORARY BULKHEAD
INSTALL TEMPORARY BULKHEAD
SURFACE WORKS
SURFACE WORKS
Walmsley Shaft
ESTABLISHMENT
ESTABLISHMENT
SHAFT EXCAVATION
SHAFT EXCAVATION
SHAFT LINING WORKS
SHAFT LINING WORKS
TUNNEL SHAFT JUNCTION WORKS
TUNNEL SHAFT JUNCTION WORKS
SURFACE WORKS
SURFACE WORKS
Haverstock Shaft
ESTABLISHMENT
ESTABLISHMENT
SHAFT EXCAVATION
SHAFT EXCAVATION
TUNNEL SHAFT JUNCTION WORKS
TUNNEL SHAFT JUNCTION WORKS
SHAFT LINING WORKS
SHAFT LINING WORKS
SURFACE WORKS
SURFACE WORKS
Lyon Shaft
ESTABLISHMENT
ESTABLISHMENT
SHAFT EXCAVATION
SHAFT EXCAVATION
SHAFT LINING WORKS
SHAFT LINING WORKS
TUNNEL SHAFT JUNCTION WORKS
TUNNEL SHAFT JUNCTION WORKS
SURFACE WORKS
SURFACE WORKS
DISESTABLISHMENT
DISESTABLISHMENT
Mt Albert Shaft
ESTABLISHMENT
ESTABLISHMENT
SHAFT EXCAVATION
SHAFT EXCAVATION
SHAFT LINING WORKS
SHAFT LINING WORKS
TUNNEL SHAFT JUNCTION WORKS
TUNNEL SHAFT JUNCTION WORKS
DISESTABLISHMENT
DISESTABLISHMENT
SURFACE WORKS
SURFACE WORKS
Western Springs Shaft
ESTABLISHMENT
ESTABLISHMENT
SHAFT EXCAVATION
SHAFT EXCAVATION
TUNNEL SHAFT JUNCTION WORKS
TUNNEL SHAFT JUNCTION WORKS
Documentation
Procurement
Tunnelling Works
MSP Construction
Milestone
Page 2 of 5
* Baseline Programme yet to be finalised, some dates subject to change 
Design
Shaft Construction
Sewer Connections & Chambers
ATF Construction
WSL: CENTRAL INTERCEPTOR MAIN WORKS PROGRAMME (for LGOIMA)
11 May 2019
Activity Name
2019
2020
2021
2022
2023
2024
2025
2026
F
A
J J A S
D J F A J J A S
D J F A J J A S N D J F A J J A S
D J F A J J A S N D J F A J J A S N D J F A J J A S
D J F A J J A S N D
SHAFT LINING WORKS
SHAFT LINING WORKS
SURFACE WORKS
SURFACE WORKS
Main Sewer Tunnelling Works (North)
TUNNEL DRIVE NORTH
TUNNEL DRIVE NORTH
WELDING AND FINISHING WORKS
WELDING AND FINISHING WORKS
LINK SEWER B & SHAFTS
Norgrove Shaft
ESTABLISHMENT
ESTABLISHMENT
SHAFT EXCAVATION
SHAFT EXCAVATION
SHAFT LINING WORKS
SHAFT LINING WORKS
TUNNEL SHAFT JUNCTION WORKS
TUNNEL SHAFT JUNCTION WORKS
SURFACE WORKS
SURFACE WORKS
DISESTABLISHMENT
DISESTABLISHMENT
Rawalpindi Shaft
ESTABLISHMENT
ESTABLISHMENT
SHAFT EXCAVATION
SHAFT EXCAVATION
TUNNEL SHAFT JUNCTION WORKS
TUNNEL SHAFT JUNCTION WORKS
SHAFT LINING WORKS
SHAFT LINING WORKS
SURFACE WORKS
SURFACE WORKS
Link Sewer B Tunnelling Works
LINK SEWER B: MT ALBERT TO NORGROVE Tunneling WORKS
LINK SEWER B: MT ALBERT TO NORGROVE Tunneling WORKS
LINK SEWER B: RAWALPINDI TO NORGROVE Tunneling WORKS
LINK SEWER B: RAWALPINDI TO NORGROVE Tunneling WORKS
Tunnel Adit Connection between Link Sewer B and the Main Tunnel at Mt Albert Shaft site
TUNNEL ADIT CONNECTION LINK SEWER B & MAIN TUNNEL
TUNNEL ADIT CONNECTION LINK SEWER B & MAIN TU
LINK SEWER C & SHAFTS
Haycock Shaft
ESTABLISHMENT
ESTABLISHMENT
SHAFT EXCAVATION
SHAFT EXCAVATION
TUNNEL SHAFT JUNCTION WORKS
TUNNEL SHAFT JUNCTION WORKS
SHAFT LINING WORKS
SHAFT LINING WORKS
SURFACE WORKS
SURFACE WORKS
Dundale Shaft
ESTABLISHMENT
ESTABLISHMENT
SHAFT EXCAVATION
SHAFT EXCAVATION
TUNNEL SHAFT JUNCTION WORKS
TUNNEL SHAFT JUNCTION WORKS
SHAFT LINING WORKS
SHAFT LINING WORKS
SURFACE WORKS
SURFACE WORKS
Whitney Shaft
ESTABLISHMENT
ESTABLISHMENT
SHAFT EXCAVATION
SHAFT EXCAVATION
TUNNEL SHAFT JUNCTION WORKS
TUNNEL SHAFT JUNCTION WORKS
SURFACE WORKS
SURFACE WORKS
Miranda Shaft
ESTABLISHMENT
ESTABLISHMENT
SHAFT EXCAVATION
SHAFT EXCAVATION
TUNNEL SHAFT JUNCTION WORKS
TUNNEL SHAFT JUNCTION WORKS
Documentation
Procurement
Tunnelling Works
MSP Construction
Milestone
Page 3 of 5
* Baseline Programme yet to be finalised, some dates subject to change 
Design
Shaft Construction
Sewer Connections & Chambers
ATF Construction
WSL: CENTRAL INTERCEPTOR MAIN WORKS PROGRAMME (for LGOIMA)
11 May 2019
Activity Name
2019
2020
2021
2022
2023
2024
2025
2026
F
A
J J A S
D J F A J J A S
D J F A J J A S N D J F A J J A S
D J F A J J A S N D J F A J J A S N D J F A J J A S
D J F A J J A S N D
SHAFT LINING WORKS
SHAFT LINING WORKS
SURFACE WORKS
SURFACE WORKS
DISESTABLISHMENT
DISESTABLISHMENT
PS25 Shaft
ESTABLISHMENT
ESTABLISHMENT
SHAFT EXCAVATION
SHAFT EXCAVATION
SHAFT LINING WORKS
SHAFT LINING WORKS
TUNNEL SHAFT JUNCTION WORKS
TUNNEL SHAFT JUNCTION WORKS
Link Sewer C Tunnelling Works
LINK SEWER C: MAY ROAD TO HAYCOCK
LINK SEWER C: MAY ROAD TO HAYCOCK
LINK SEWER C: DUNDALE TO HAYCOCK
LINK SEWER C: DUNDALE TO HAYCOCK
LINK SEWER C: DUNDALE TO WHITNEY ST
LINK SEWER C: DUNDALE TO WHITNEY ST
LINK SEWER C: MIRANDA ST TO WHITNEY ST
LINK SEWER C: MIRANDA ST TO WHITNEY ST
LINK SEWER C: MIRANDA ST TO PS25
LINK SEWER C: MIRANDA ST TO PS25
SEWER CONNECTIONS, CHAMBERS & SITEWORKS
Sewer Connections, Chambers & Siteworks - DSCIN002 (PS23)
PS23: SEWER CONNECTIONS, CHAMBERS & SITEWORKS
PS23: SEWER CONNECTIONS, CHAMBERS & SITEWORKS
Sewer Connections, Chambers & Siteworks - DSCIN003 (Keith Hay Park)
KEITH HAY PARK: SEWER CONNECTIONS, CHAMBERS & SITEWORKS
KEITH HAY PARK: SEWER CONNECTIONS, CHAMBERS & SITEWORKS
Sewer Connections, Chambers & Siteworks - DSCIN004 (May Rd)
MAY ROAD: SEWER CONNECTIONS, CHAMBERS & SITEWORKS
MAY ROAD: SEWER CONNECTIONS, CHA
Sewer Connections, Chambers & Siteworks - DSCIN005 (Walmsley Park)
WALMSLEY PARK: SEWER CONNECTIONS, CHAMBERS & SITEWORKS
WALMSLEY PARK: SEWER CONNECTIONS, C
Sewer Connections, Chambers & Siteworks - DSCIN006 (Haverstock)
HAVERSTOCK: SEWER CONNECTIONS, CHAMBERS & SITEWORKS
HAVERSTOCK: SEWER CONNECTIONS, CH
Sewer Connections, Chambers & Siteworks - DSCIN007 (Lyon)
LYON: SEWER CONNECTIONS, CHAMBERS & SITEWORKS
LYON: SEWER CONNECTIONS, CHAMBER
Sewer Connections, Chambers & Siteworks - DSCIN008 (Mt Albert)
MT ALBERT: SEWER CONNECTIONS, CHAMBERS & SITEWORKS
MT ALBERT: SEWER CONNECTIONS, CHA
Sewer Connections, Chambers & Siteworks - DSCIN009 (Western Springs)
WESTERN SPRINGS: SEWER CONNECTIONS, CHAMBERS & SITEWORKS
WESTERN SPRINGS: SEWER CONNECTI
Sewer Connections, Chambers & Siteworks - DSLSB001 (Norgrove)
NORGROVE: SEWER CONNECTIONS, CHAMBERS & SITEWORKS
NORGROVE: SEWER CONNECTIONS, CH
Sewer Connections, Chambers & Siteworks - DSLSB002 (Rawalpindi)
RAWALPINDI: SEWER CONNECTIONS, CHAMBERS & SITEWORKSs
RAWALPINDI: SEWER CONNECTIONS, C
Sewer Connections, Chambers & Siteworks - DSLSC001 (Haycock)
HAYCOCK: SEWER CONNECTIONS, CHAMBERS & SITEWORKS
HAYCOCK: SEWER CONNECTIONS, CHAMBERS & SITEWORKS
Sewer Connections, Chambers & Siteworks - DSLSC002 (Dundale)
DUNDALE: SEWER CONNECTIONS, CHAMBERS & SITEWORKS
DUNDALE: SEWER CONNECTIONS, CHAMBERS & SITEWORKS
Sewer Connections, Chambers & Siteworks - DSLSC003 (Whitney)
WHITNEY: SEWER CONNECTIONS, CHAMBERS & SITEWORKS
WHITNEY: SEWER CONNECTIONS, CHAMBERS & SITEWORKS
Sewer Connections, Chambers & Siteworks - DSLSC004 (Miranda)
MIRANDA: SEWER CONNECTIONS, CHAMBERS & SITEWORKS
MIRANDA: SEWER CONNECTIONS, CHAMBERS & SITEWORKS
Sewer Connections, Chambers & Siteworks - DSLSC005 (PS25)
PS25: SEWER CONNECTIONS, CHAMBERS & SITEWORKS
PS25: SEWER CONNECTIONS, CHAMBERS & SITEWORKS
MANGERE PUMPING STATION [excl. Shaft]
Documentation
Procurement
Tunnelling Works
MSP Construction
Milestone
Page 4 of 5
* Baseline Programme yet to be finalised, some dates subject to change 
Design
Shaft Construction
Sewer Connections & Chambers
ATF Construction
WSL: CENTRAL INTERCEPTOR MAIN WORKS PROGRAMME (for LGOIMA)
11 May 2019
Activity Name
2019
2020
2021
2022
2023
2024
2025
2026
F
A
J J A S
D J F A J J A S
D J F A J J A S N D J F A J J A S
D J F A J J A S N D J F A J J A S N D J F A J J A S
D J F A J J A S N D
Mangere Pumping Station - Civil Works
MPS INLET CHAMBER, WET WELL, DRY WELL
MPS INLET CHAMBER, WET WELL, DRY WELL
MPS SITEWORKS, SITE SERVICES AND ROADING
MPS SITEWORKS, SITE SERVICES AND ROADING
MPS RISING MAINS
MPS RISING MAINS
MPS BUILDING
MPS BUILDING
MPS CONFLUENCE CHAMBER
MPS CONFLUENCE CHAMBER
MPS EMERGENCY PRESSURE RELIEF
MPS EMERGENCY PRESSURE RELIEF
Mangere Pumping Station - Mechanical Works
MPS MECHANICAL WORKS *
MPS MECHANICAL WORKS *
AIR TREATMENT FACILITIES
Mangere Pump Station ATF
MPS: AIR TREATMENT FACILITY
MPS: AIR TREATMENT FACILITY
May Rd ATF
MAY ROAD: AIR TREATMENT FACILITY
MAY ROAD: AIR TREATMENT FACILITY
Documentation
Procurement
Tunnelling Works
MSP Construction
Milestone
Page 5 of 5
* Baseline Programme yet to be finalised, some dates subject to change 
Design
Shaft Construction
Sewer Connections & Chambers
ATF Construction

Document Outline