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Sarina Range reconstruction project

Overview:

The Sarina Range is located on Marlborough-Sarina Road approximately 13-16km south-west of Sarina.

Marlborough-Sarina Road has relatively low traffic counts, however a large number of rural properties and local communities are located in the area. 

The high intensity rainfall from Severe Tropical Cyclone Debbie caused a number of landslips and large cracks along the range crossing.  

The 2 major slips were approximately 300m in length and had significant areas of geotechnical failure. One of the major slips included complete loss of the road and supporting embankment.

These slips caused the range to be completely closed to traffic long term, however one lane was reopened under traffic control and restrictions on 8 October 2018.

Location:

The key project reconstruction sites are located on Marlborough–Sarina Road along the Sarina Range.

Completion:

December 2018, weather permitting.

Benefits:

This NDRRA project is focused on rebuilding Marlborough–Sarina Road across the Sarina Range, reconnecting communities and restoring safe and efficient travel routes for all motorists.

Funding:

Eligible reconstruction works are jointly funded by the Commonwealth and Queensland Government under the Natural Disaster Relief and Recovery Arrangements (NDRRA).

Regions:
Central Region - Mackay Whitsunday District

Project info

The Sarina Range area of Marlborough-Sarina Road sustained significant damage as a result of Severe Tropical Cyclone Debbie in March 2017. This damage included 30 areas requiring repair over 26 sites, and included 2 major land slips.

Multiple activities are concurrently underway on the reconstruction project. The site map shows the locations of each area along the Sarina Range impacted by Severe Tropical Cyclone Debbie. The coloured dots represent completed works (green) and works currently in progress (orange).

Currently, reconstruction on 27 of the 30 areas requiring repair over 26 sites, are complete. 

Marlborough–Sarina Road along the Sarina Range re-opened to traffic, on 8 October 2018 under single lane traffic control.

The road will remain a construction site until the anticipated project completion date in December 2018 (weather permitting).

Restrictions will apply while the road operates under traffic control and delays of up to 15 minutes will be experienced. 

Traffic control information is as follows:

  • The road is open under one directional reversible flow.  This means that only one lane is operational at a time.
  • The road is accessible and monitored 24 hours per day, 7 days per week with in place traffic control, speed restrictions and an escort vehicle leading traffic queues up and down the Sarina Range crossing. 
  • Restrictions apply to heavy vehicles. Vehicles with a width greater than 2.5 metres are not permitted to access the range. Exemptions apply to construction traffic. This condition will be monitored continually during the restoration project.
  • Excess dimension permits are not able to be granted for the duration of the traffic control period along Marlborough-Sarina Road due to space constraints at the site. Please check the National Heavy Vehicle Regulator website for more information about heavy vehicle routes.
  • For up to date information on road closures and conditions visit www.QLDTraffic.qld.gov.au.

Project map

This map shows the location and status of each activity.


View fullscreen in Google maps.   

Please note: A single point has been chosen to represent each project on this map—this may not correspond with where works are currently taking place. Visit QLDTraffic for up-to-date traffic, road closures and conditions that may affect your journey.

The following sites are included as part of the project.

Site Description Status
1 Unstable batter/embankment, missing material Completed works
2 Unstable batter/embankment, missing material Completed works
3 Unstable batter/embankment, missing material Completed works
4 Culvert, pipe, pit and floodway defects Completed works
5 Unstable batter/embankment, missing material Completed works
6 Unstable batter/embankment, missing material Current works
7 Unstable batter/embankment, missing material Completed works
8 Major slip - instability affected the cut slope and a very large landslide within the fill embankment Current works
9A Unstable batter/embankment, missing material Completed works
9B Instability on the cut slope Completed works
10 Unstable batter/embankment, missing material Completed works
11 Unstable batter/embankment, missing material Completed works
12 Unstable batter/embankment, missing material Current works
13 Shallow rotational slides, debris in drains and on carriageway Completed works
13DS Unstable batter/embankment (down slope), missing material Completed works
14 Unstable batter/embankment, missing material Completed works
15A Unstable batter/embankment, missing material Completed works
15B Unstable batter/embankment, missing material Completed works
16 Unstable batter/embankment, missing material Completed works
17 Unstable batter/embankment, missing material Completed works
18 Culvert, pipe, pit and floodway defects Completed works
19 Guardrail, fencing and concrete barrier structural defects (minor works) Completed works
20 Unstable batter/embankment, missing material Completed works
21 Unstable batter/embankment, missing material Completed works
22 Unstable batter/embankment, missing material Completed works
23 Culvert inlet repair Completed works
23DS Culvert outlet repair (down slope) Completed works
24 Unstable batter/embankment, missing material Completed works
25 Unstable batter/embankment, missing material Completed works
26 Unstable batter/embankment, missing material Completed works

Contact details

Email: mackay.office@tmr.qld.gov.au
Phone: 07 4951 8555
Post: Sarina Range Reconstruction Project 
Department of Transport and Main Roads
PO Box 62 
Mackay Qld 4740

Media gallery

Before works

Damage sustained to Marlborough-Sarina Road along the Sarina Range as a result of Severe Tropical Cyclone Debbie in 2017.

Damage sustained to Marlborough-Sarina Road along the Sarina Range as a result of STC Debbie in 2017.

Damage sustained to Marlborough-Sarina Road along the Sarina Range as a result of STC Debbie in 2017.

Damage sustained to Marlborough-Sarina Road along the Sarina Range as a result of STC Debbie in 2017.

Damage sustained to Marlborough-Sarina Road along the Sarina Range as a result of STC Debbie in 2017.

Damage sustained to Marlborough-Sarina Road along the Sarina Range as a result of STC Debbie in 2017.

Damage sustained to Marlborough-Sarina Road along the Sarina Range as a result of STC Debbie in 2017.

Current works

Clearing works and establishment of a machinery track under the major landslip on the Sarina Range.
Clearing works and establishment of a machinery track under the major landslip on the Sarina Range.

Soil nailing is now complete on the upslope.
Site 8: soil nailing is now complete on the upslope.

Preparing to lay mesh on the upslope.
Site 8: preparing to lay mesh on the upslope.

Mesh installation is now complete on the upslope.
Site 8: mesh installation is now complete on the upslope.

Excavation and soil nailing continues on the main slip site.
Site 8: excavation and soil nailing is now complete on the main slip site.

Preparing to add new material to stabilise the embankment.
Site 21 and 22: preparing to add new material to stabilise the embankment.

Material was added to stabilise the embankment – Site 21 and 22 are now complete.
Site 21 and 22: material was added to stabilise the embankment – Site 21 and 22 are now complete.

Site 8 down slope-works on the key trench and preparation for the block retaining wall continue
Site 8: works on the key trench and preparation for the block retaining wall continue. 

Aerial imagery of the reconstruction sites taken in May 2018
Sites 8, 9 and 10: Aerial imagery of the reconstruction sites taken in May 2018.

Sites 8, 9 and 10 taken September 2018
Site 8, 9 and 10: Aerial imagery of the reconstruction sites taken in September 2018.

Construction of block retaining wall site
Site 8: Construction of the block retaining wall at the main slip site (Site 8).

Site 8: The block retaining wall at the main slip site is now complete.
Site 8: The block retaining wall at the main slip site is now complete.

Marlborough-Sarina Road was successfully reopened under traffic control on 8 October 2018
Marlborough-Sarina Road was successfully reopened under traffic control on 8 October 2018

Koumala-Bolingbroke Road upgrade project

New seal and guard rail
New seal and guard rail placement along the Koumala Range – September 2018.

New seal and old road
New seal is laid in sections along the Koumala Range – August 2018.

Videos of reconstruction work

 

Video showing before and current imagery of the Marlborough-Sarina Road (Sarina Range) restoration project (created March 2018).

 

Video of time-lapse footage showing construction of the key trench construction at site 8 (main slip down slope).

 

Video of time-lapse footage showing excavation of the roadway at site 8 (main slip).

 

Video of drone footage showing progress (captured March 2018).

Last updated
29 November 2018