Redoubt Road – Mill Road corridor project
Project overview• Covers the 8.9km section of the Redoubt
Road-Mill Road corridor
• Starting at the State Highway One (SH1) on and off ramps on Redoubt Road running east then south along Redoubt Road to the Redoubt Road-Mill Road intersection
• The corridor continues south along Mill Road, concluding south of Alfriston Road near the intersection of Mill Road and Popes Road
• It also includes a short section along Hollyford Drive to the north of Redoubt Road and a portion of Murphys Road from a new intersection on Redoubt Road to Flat Bush School Road.
Why is the project required?• Changing land use, population growth
and planned housing developments will increase pressure on local infrastructure in south Auckland
• Significant crash hotspots along the route make it necessary to improve the road’s safety
Improvements to the Mill Road corridor between Manukau, Papakura and Drury are identified as a priority in the Auckland Long Term Plan (LTP).
Mill Road approaching new proposed Redoubt / Murphys Road intersection.
Manukau Harbour
Pararekau Island
Wao
kauri Creek
Pukaki Creek
Drury
Cre
ek
Pahurehure Inlet
20A
20A
20
20
20 1
1
1
1
Puhinui
Takanini
Middlemore
Homai
Papatoetoe
Manurewa
Te Mahia
Papakura
Otara
Flat Bush
Manukau Heights
Takanini
Manurewa East
Randwick Park
Manurewa
Goodwood Heights
Totara Heights
Wattle Downs
MangereAscot Industrial
Mangere East
Puhinui
Wiri
Hill Park
Clover Park
Chapel Downs
Weymouth
Clendon
Conifer Grove
Papakura
Opaheke
Red HillPahurehure
The Gardens
Donegal Park
Papatoetoe
Kingseat
Waiau Pa
eagroveKaraka
Hingaia
Runciman
Ramarama
Drury
Homai
Te Hihi
Wesley
Ardmore
10,000 new houses in special housing areas
6000 jobs in new industrial areas
Redoubt Road-Mill Road corridor route
Future urban zone
Special housing area
New industrial areas
Special Housing Areas announced for the area provide for 10,000 new homes – placing pressure on the current transport network
• An estimated 10,000 new houses will be fast tracked in special housing areas under the Housing Accord in southern parts of Auckland, this includes 4470 houses in Flat Bush, and 1770 houses in Takanini
• A further 12,000 – 14,000 houses are anticipated to be constructed in the Takanini, Opaheke, Drury and Karaka future urban zone as indicated in the Proposed Auckland Unitary Plan
• New industrial areas in Takanini and Drury south will create 6,000 new jobs
• Traffic volumes will increase to a level more than the current Redoubt and Mill Roads can cope with
• Congestion is already affecting parts of Redoubt Road and Mill Road and traffic will almost double in 10 to 15 years.
Growth map for the Mill Road – Redoubt Road area
South Auckland is growing
Features and benefits• A safer and more efficient route that can support future growth in the area
• More reliable journeys by providing a four lane road with more capacity and upgraded intersections
• Improved public transport infrastructure and services
• More reliable bus journey times, the ability to move more people and remove constraints on the public transport network by creating bus priority lanes through Hollyford Drive and Redoubt Road intersections
• Improved travel time and safety for drivers, pedestrians and cyclists
• New footpaths on both sides of Redoubt and Murphys Road improving pedestrian connectivity
• Safe pedestrian crossing opportunities at all traffic signals
• An alternative north-south corridor in case of major disruption or emergencies on the other southern arterial routes
Safety• Improves safety and provides for increases in traffic that
will come with significantly more people living in the area and using this route
• Significant crash hot spots at a number of dangerous junctions and curves along the route make it necessary to improve the road alignment
• 283 vehicle crashes and four fatalities (2009-2013)
• Without the upgrades there are expected to be further safety issues and more traffic than the existing road can cope with by 2026.
Safety
Accident hotspots along the Redoubt Road – Mill Road Corridor.
Key project featuresFeatures and benefits• Redoubt Road widened to four lanes (two in
each direction) between SH1 and Murphys Road
• Westbound bus lane along Hollyford Drive and Redoubt Road towards Manukau
• Replacement of the existing Mill Road with a new four lane arterial (two in each direction) between Murphys Road and Popes Road
• New roundabouts at Ranfurly Road and Alfriston Road with pedestrian facilities including safe crossing facilities in the medians
• New and improved signalised intersections at Diorella Drive, Hollyford Drive, Santa Monica Place and Murphys Road. These intersections will have pedestrian crossings and stop boxes for cyclists
• Widening of Murphys Road to four lanes (two in each direction) between Flat Bush School Road and Redoubt Road
• Murphys Road-Redoubt Road intersection realigned and traffic lights added to improve safety
• On road cycle lanes on both sides for the length of the upgrade
• Off-road cycle and foot paths (shared path) for the length of the upgrade
Proposed Viaduct over Puhinui Creek.
• Widened footpaths on both sides of Redoubt Road, Mill Road and Murphys Road with pedestrian crossings at key intersections
• Improved access to local community services and facilities such as Totara Park and Murphys Bush
• Replacement planting and stream restoration
• Improved stormwater facilities for the entire corridor which includes wetlands areas for stormwater treatment and retention
• Landscaping of the new road corridor
Towards Flat Bush / Manukau
Proposed Mill Road
Towards Papakura
Existin
g M
ill Ro
ad
Santa
Monica Pl
Hollyford Dr
Dio
r ella Dr
Redoubt Road
Mill RdProposed Route - 4 Lanes
Murphys RdProposed Route - 4 Lanes
AlfristonSchool
Ranf
urly
Rd
Alfrist
on R
d
Hill Rd
Popes Rd
Sout
h M
ill R
d
Gul
ly V
iadu
ct
Puhi
nui C
reek
Gul
ly V
iadu
ct
Hilltop Rd
Redoubt Rd
Flat Bush School Rd
Thomas Rd
EquestrianCentre
Murphys Bush - scenic reserve
Auckland Regional Botanical Gardens
Watercare Reservoir
Mur
phys
Rd
Phillip RdStratford Rd
St Johns Redoubt
Everglade Dr
Te Ir
irang
i Dr
Mill Rd
Key
Bus lane
On Road Cycle Lane
Off Road Shared Path
New roundabout
New signalised intersection
Existing signal remains*
Existing signal-
ised intersection
remains
Redoubt Rd Proposed route -4 lanes + bus lane
TotaraPark
State Highway 1
Goodwood Dr*
Mill Road corridor map
Background and milestones
2009
Consultation on the Northern section began in 2009 with Manukau City Council asking the public for feedback on options for sections of the corridor.
2015 / 2016
Southern section: Progress work to identify a route alignment.
2012
Auckland Transport consulted with directly affected landowners and the wider community in October and November 2012 with six information days. Responses from the public were evaluated and incorporated in planning the project.
2015 / 2016
Northern section: Notice of requirement decision to confirm designation.
October 2014
Northern section: Route identified and Notices of Requirement lodged.
2020+
Northern section: Phased construction along Redoubt Road, Mill Road and Murphys Road driven by growth.
2015
Northern section: Public submissions and hearing on Notices of Requirement.
2025+
Southern section: Finalisation of route and construction dependent on growth.
Road runoff Filterstrip
Swales (vegetation)
Riparian buffer (vegetation)
Wetlands
Environmental considerations and ecology
• Implementing a noise and vibration management plan
• Managing any soil contamination, stormwater runoff and dust
• Replacement planting and stream restoration
• Creating new wetland areas and habitats for local birdlife
• A pest eradication programme
• Monitoring environmental issues during construction
• On-going environmental monitoring after works are completed
• The route was selected at Puhinui Creek to avoid mature forest
• It crosses two areas of native forest via 17m and 23m high viaducts. These will be built at Puhinui Creek gully and South Mill Road gully
• At least 22,000 sq. m of native planting
• Environmental monitoring during and after construction
• Mitigating effects by planting native trees adjoining to existing bush areas
• Monitoring mature trees for bat habitation before felling
• Minimise road lighting and where lights are necessary use downward facing low pressure sodium lamps
• Rescue and relocate native geckos and skinks
• Provide fish passage and appropriate stream restoration where culverts are built
• Retain a habit linkage beneath the Puhinui Creek Gully viaduct during construction of piers which will remain after completion
A large number of routes were investigated and potential effects assessed before the final route was selected. A number of conditions are proposed to reduce or mitigate any long-term impacts:
Secondary and tertiary treatmenteg: raingardens, wetlands and riparian buffers
Primary treatmenteg: filterstrips and swales
Stormwater treatment removes contaminants through an evironmentally friendly staged design.
Noise and vibrationConstruction noise and vibration• Noise and vibration will be produced from construction activities, laydown
areas and worksites.
What will be done about it?• The team will comply with procedures set out in the New Zealand standards
6803:1999, Acoustics – Construction Noise
• This standard sets out limits and provides methods of predicting and managing noise
• Before commencing any work, Auckland Transport will prepare a detailed plan to show how the project will comply with the standards
Operational noise and vibration• Once operational, the project will comply with procedures set out in the
New Zealand standards 6806:2010, Acoustics – Road Traffic Noise – New and Altered Roads
• This is the accepted method in New Zealand to address road-traffic noise
• It provides performance targets and requires assessment of a number of different options for noise mitigation
Mitigation options include
• Acoustic barriers
• Landscaping
• Use of low noise road surfaces (for example open graded porous asphalt)
• Dwelling modifications including double glazing and insulation
• The mitigation processes will change as the design progresses and decisions are made on detailed design
Cycling and walking improvements• On road cycle lanes for the length of the upgrade, varying between
1.5 and 2 metres wide
• Off road shared use paths for less confident cyclists and pedestrians on one side of the length of the upgrade
• Advanced stop boxes for cyclists at intersections with traffic lights.
• Two metre wide footpath on both sides of Redoubt Road between SH1 and Hollyford Drive intersections
• A mix of footpaths and the shared use path will be provided for the rest of Redoubt Road, Mill Road and Murphys Road
• Pedestrian crossings on all legs of intersections with traffic lights (Hollyford/Redoubt, Diorella/Redoubt, Murphys/Redoubt)
• Safe crossing refuges in medians at Ranfurly Road and Alfriston Road roundabouts
FootpathBerm Berm Cyclepath
2m 1m 1.6m
Lane Lane
7m2.7m
Berm
1.7mMed
ian
Lane Lane
7m
BermCyclepath
1m1.6m
Shared path
3mSep
arat
ion
med
ian
Sep
arat
ion
med
ian
Redoubt Road typical cross section
Footpath Berm Cyclepath
2.2m 1.2m 1.8m
Lane Lane
6.4 Med
ian
Lane Lane
6.4m
BermCyclepath
1.2m1.8m
Shared path
3mSep
arat
ion
med
ian
Sep
arat
ion
med
ian
Murphy’s Road typical cross section
CyclepathBerm
2m
Lane Lane
7m5.2m
Berm
1.mMed
ian
Lane Lane
7m
BermCyclepath
1m2m
Shared path
3m5.2m Sep
arat
ion
med
ian
Sep
arat
ion
med
ian
Mill Road typical cross section
Public transport improvements• Public transport improvements to the Mill Road Corridor will provide more
frequent and more reliable public transport services
• Bus priority facilities will be provided at the Hollyford Drive/Redoubt Road intersection, including a dedicated right turn lane for buses turning out of Hollyford Drive into Redoubt Road
• A new westbound bus lane is proposed between Hollyford Drive and SH1 intersection
• The proposed bus lane will allow buses to travel unimpeded between Hollyford Drive and Diorella Drive, and between Diorella Drive and the motorway
• The frequency of bus services will increase which will provide a better level of service for public transport users
• Improvements to bus priority facilities and frequency will enable a strong integration with connector routes and local services
• Bus priority facilities will be provided at the Hollyford Drive/Redoubt Road intersection, including a dedicated right turn lane for buses turning out of Hollyford Drive into Redoubt Road
Redoubt Road bus lane cross section
FootpathBerm Berm Cyclepath
2m 1.5m1.5m
Berm
1.5m
Lane Lane
6.6m1m
Berm
0.9mMed
ian
Lane Lane Bus lane
6.6m
Cyclepath
1.6m
Footpath
2m3.4mSep
arat
ion
med
ian
Planning process and how to get involved
• Auckland Transport has lodged three separate Notices of Requirement (NoR) with Auckland Council
• The intention is for Auckland Council to publicly notify the NoRs in April 2015
• The NoR process provides an opportunity for you to provide comment (make a submission)
• If you wish to make a submission on these documents and be involved in the process you will be able to find the notified documents and submission instructions at the following Auckland Council website location: tinyurl.com/o65z5yr
Lodged late 2014Resource Consent applications and alteration for designation
January 2014Council asks for further information
April – MayPublic notification – 17 April 2015 Submisssions close – 19 May 2015
May – JuneSubmissions received and reviewed
JuneCouncil will ask for further information (if required)
June – JulyResolving of pre-hearing issues
August (to be confirmed)Council hearing
width of road minimised
opportunity to reinforce bush edge
Murphys Road widening, adjacent to Murphys Bush.
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