Agenda of Infrastructure Advisory Committee Meeting

CONFLICT OF INTERESTS

What is a “Conflict of Interests” - A conflict of interests can be of two types:

Pecuniary - an interest that a person has in a matter because of a reasonable likelihood or expectation of appreciable financial gain or loss to the person or another person with whom the person is associated.

Non-pecuniary – a private or personal interest that a Council official has that does not amount to a pecuniary interest as defined in the Code of Conduct for Councillors (eg. A friendship, membership of an association, society or trade union or involvement or interest in an activity and may include an interest of a financial nature).

Remoteness – a person does not have a pecuniary interest in a matter if the interest is so remote or insignificant that it could not reasonably be regarded as likely to influence any decision the person might make in relation to a matter or if the interest is of a kind specified in the Code of Conduct for Councillors.

Who has a Pecuniary Interest? - a person has a pecuniary interest in a matter if the pecuniary interest is the interest of the person, or another person with whom the person is associated (see below).

Relatives, Partners - a person is taken to have a pecuniary interest in a matter if:

· The person’s spouse or de facto partner or a relative of the person has a pecuniary interest in the matter, or

· The person, or a nominee, partners or employer of the person, is a member of a company or other body that has a pecuniary interest in the matter.

N.B. “Relative”, in relation to a person means any of the following:

(a) the parent, grandparent, brother, sister, uncle, aunt, nephew, niece, lineal descends or adopted child of the person or of the person’s spouse;

(b) the spouse or de facto partners of the person or of a person referred to in paragraph (a)

No Interest in the Matter - however, a person is not taken to have a pecuniary interest in a matter:

· If the person is unaware of the relevant pecuniary interest of the spouse, de facto partner, relative or company or other body, or

· Just because the person is a member of, or is employed by, the Council.

· Just because the person is a member of, or a delegate of the Council to, a company or other body that has a pecuniary interest in the matter provided that the person has no beneficial interest in any shares of the company or body.

Disclosure and participation in meetings

· A Councillor or a member of a Council Committee who has a pecuniary interest in any matter with which the Council is concerned and who is present at a meeting of the Council or Committee at which the matter is being considered must disclose the nature of the interest to the meeting as soon as practicable.

· The Councillor or member must not be present at, or in sight of, the meeting of the Council or Committee:

(a) at any time during which the matter is being considered or discussed by the Council or Committee, or

(b) at any time during which the Council or Committee is voting on any question in relation to the matter.

No Knowledge - a person does not breach this Clause if the person did not know and could not reasonably be expected to have known that the matter under consideration at the meeting was a matter in which he or she had a pecuniary interest.

Non-pecuniary Interests - Must be disclosed in meetings.

There are a broad range of options available for managing conflicts & the option chosen will depend on an assessment of the circumstances of the matter, the nature of the interest and the significance of the issue being dealt with. Non-pecuniary conflicts of interests must be dealt with in at least one of the following ways:

· It may be appropriate that no action be taken where the potential for conflict is minimal. However, Councillors should consider providing an explanation of why they consider a conflict does not exist.

· Limit involvement if practical (eg. Participate in discussion but not in decision making or vice-versa). Care needs to be taken when exercising this option.

· Remove the source of the conflict (eg. Relinquishing or divesting the personal interest that creates the conflict)

· Have no involvement by absenting yourself from and not taking part in any debate or voting on the issue as of the provisions in the Code of Conduct (particularly if you have a significant non-pecuniary interest)

Committee members are reminded that they should declare and manage all conflicts of interest in respect of any matter on this Agenda, in accordance with the Code of Conduct.

RECORDING OF VOTING ON PLANNING MATTERS

Clause 375A of the Local Government Act 1993 – Recording of voting on planning matters

(1) In this section, planning decision means a decision made in the exercise of a function of a council under the Environmental Planning and Assessment Act 1979:

(a) including a decision relating to a development application, an environmental planning instrument, a development control plan or a development contribution plan under that Act, but

(b) not including the making of an order under that Act.

(2) The general manager is required to keep a register containing, for each planning decision made at a meeting of the council or a council committee, the names of the councillors who supported the decision and the names of any councillors who opposed (or are taken to have opposed) the decision.

(3) For the purpose of maintaining the register, a division is required to be called whenever a motion for a planning decision is put at a meeting of the council or a council committee.

(4) Each decision recorded in the register is to be described in the register or identified in a manner that enables the description to be obtained from another publicly available document and is to include the information required by the regulations.

(5) This section extends to a meeting that is closed to the public.

OATH AND AFFIRMATION FOR COUNCILLORS

Councillors are reminded of the oath of office or affirmation of office made at or before their first meeting of the council in accordance with Clause 233A of the Local Government Act 1993. This includes undertaking the duties of the office of councillor in the best interests of the people of Byron Shire and the Byron Shire Council and faithfully and impartially carrying out the functions, powers, authorities and discretions vested under the Act or any other Act to the best of one’s ability and judgment.

BYRON SHIRE COUNCIL

Staff Reports - Infrastructure Services 4.1

Staff Reports - Infrastructure Services

Report No. 4.1 Myocum Quarry Precinct Update

Directorate: Infrastructure Services

Report Author: Nikki Bourke, Project Officer

File No: I2024/17

Summary:

This update addresses status of projects and the allocation of resources relating to the Myocum Quarry Precinct.

Lot 1 and Lot 4 quarries both have pressing needs. Lot 1 investigations have commenced with geotechnical studies. The Lot 4 lease has been extended to June 2025 and Council has dedicated resources to ensure that the site is returned in a suitably remediated state.

RECOMMENDATION:

That the contents of the report are noted.

Report

Myocum Quarry Precinct

As a recap, the Myocum Quarry Precinct comprises three quarries:

- Lot 1 Quarry – Byron Shire Council’s owned and operated quarry at Lot 1 DP591441. The site has ceased quarry operations and requires a modified DA to rehabilitate the site;

- Lot 4 Quarry – Council owned Lot 4 DP1052900, leased to Leela Plantations P/L, and operated by J&M Bashforth & Sons P/L. The lease is due for completion in June 2024.

- Lot 17 Quarry – Lot 17 DP1178892 owned and operated by Leela Plantations P/L.

Figure 1: Myocum Quarry Precinct

The Myocum Quarry Precinct Project Control Group (PCG) has continued to convene every two months to coordinate and progress matters relating to the Myocum Quarry lots. These meetings have just moved to a monthly frequency to support an increase in project delivery and decision making requirements.

Key issues

Progress for matters relating to each site is as follows:

Lot 1 Myocum Quarry

The Lot 1 Quarry is no longer used for quarrying and there are no plans to do so in the future as the material source is largely exhausted. The site currently has non-compliances with the Development Approvals specified rehabilitation plan.

A meeting with Council’s Sustainable Environmental and Economy Directorate Development Assistance Panel (DAP) advised that to rectify the site compliance issues, a modified DA will be required supported by the following studies: Statement of Environmental Effects (SEE), Geotechnical Assessment, Hydrology Assessment, and an updated Stormwater Management and Rehabilitation Plan that is achievable with the current landform.

The investigations commenced with the Geotechnical Assessment which will:

- Assess slope stability and safety matters present on the site;

- Investigate the haul road integrity;

- Assess the quantity and characterisation of material remaining in the south-western corner, should it be beneficial for Council to modify this area to win material for rehabilitation/rectification works or utilise that area of the site; and

- Propose mitigation measures and indicative costs.

Preliminary advice from the consulting geotechnical engineers has indicated that there are some areas of concern, of which risk mitigation and rectification measures are possible. Staff are awaiting the results of the modelling and reporting to understand the magnitude and cost of these in order to plan for their implementation and incorporate them in a revised rehabilitation plan.

The Executive Team (ET) has also recently endorsed a proposal that the Lot 1, Myocum Quarry site be further investigated and costed as the preferred site for spoil management activities supporting the Flood Recovery restoration works (ET report I2024/17). The geotechnical investigation will inform this project.

A NSW EPA approval is currently in place (as special conditions to the site’s Environmental Protection Licence – EPL12600) to use the site for road materials stockpiling and transfer for the 2022 Flood Road Work Recovery program.

An amended Environmental Protection Licence has been secured from EPA in February 2024 for Lot 1 that now permits the importation, exportation, drying and processing of various material types.

Planning advice has been sought confirming the placement of suitable spoil materials for rehabilitation purposes.

The need to amend the current rehabilitation plan and management plan is also required to maximise the opportunity to reuse spoil materials at this site.

Lot 4 Myocum Quarry

The Lot 4 Quarry is currently leased to Leela Plantations P/L (Leela) and quarried by J&M Bashforths P/L (Bashforths) contracted to Leela. The initial 21 year lease was due to expire in June 2024. The previous update to IAC detailed the approvals and lease history of the site.

Since the last update to IAC, a one year extension to June 2025 was granted to enable the lessee to rehabilitate the site.

The DA for the site is an older one (1995) giving only general text guidance as to the rehabilitation requirements to support four possible end uses: sports field; wetlands/reafforestation; wildlife lake; and equestrian centre. No final site land profile contours are specified in the DA. In order to achieve site that is rehabilitated for flexibility of possible future uses, Council has communicated that we wish for the ‘sports facility’ end use to be achieved to maximise the floor space area. The following has occurred to support the lessee working towards a rehabilitated site:

- A drone survey of the current quarried Lot 4 landform;

- 3D landform survey provided to Bashforths for their use in designing the rehabilitated site;

- A request for the proposed rehabilitated site design to be submitted by the lessee to Council for our information;

- Meetings with relevant SEE and IS staff to plan for assessing the rehabilitation plan and working with the lessee and Bashforths for refinement of the plan (if required);

- Meetings with SEE staff to plan for auditing the site during the rehabilitation phase;

- A pegged boundary survey of Lot 4 to assist Bashforths on-ground rehabilitation operations; and

- A quote has been sought for a geotechnical assessment of the eastern wall of the Lot 4 site as it relates to the safe operation of the adjacent Resource Recovery Centre’s stormwater lagoon.

All stakeholders are currently working cooperatively towards the rehabilitation of the Lot 4 site.

Lot 17 Leela Quarry

Leela owns and operates the Lot 17 DP1178892 Quarry. Development consent 95/0241 covers operations at this site.

SEE directorate staff were consulted to propose that this site should be considered for inspections whilst audits for the leased Lot 4 rehabilitation are taking place.

Next steps

Detailed investigations will proceed on Lot 1 to inform a revised rehabilitation plan and modified DA. The site will be further investigated as the preferred site for spoil management associated with the Flood Recovery works.

Collaboration with the lessee and their contractors Bashforths will continue with a view to rehabilitating the Lot 4 site by June 2025.

The Strategic Considerations

Community Strategic Plan and Operational Plan

CSP Objective	CSP Strategy	DP Action	Code	OP Activity
5: Connected Infrastructure	5.1: Provide a safe, reliable, and accessible transport network
5: Connected Infrastructure	5.1: Provide a safe, reliable, and accessible transport network	5.1.5: Restore road network - Restore the affected parts of the road network that were impacted by the 2022 flood events
3: Nurtured Environment	3.5: Minimise waste and encourage recycling and resource recovery practices	3.5.5: Facilities and services - Provide resource recovery facilities and services that meet statutory requirements	3.5.5.1	Maintain compliance with NSW Environmental Protection Licences for the Byron Resource Recovery Centre and Myocum Landfill

Recent Resolutions

Infrastructure Advisory Committee

Resolved that Council adopts the following Committee Recommendation:

Report No. 4.3 Myocum Quarry Update

File No: I2022/1341

Committee Recommendation 4.3.1

That Council notes the contents of the report and support the rehabilitation of Lots 1 (DP591441) and 4 (DP1052900). (Hunter/Lyon)

The motion was put to the vote and carried unanimously.

Infrastructure Advisory Committee

Resolved that Council adopts the following Committee Recommendations:

Report No. 3.3 Myocum Quarry DA Compliance and Options Report

File No: I2022/656

Committee Recommendation 3.3.1

That Council supports:

1. The actions as recommended in the report “DA Compliance and Options Assessment for Myocum Quarry” (E2021/155252) in response to resolution 21-098 and including preparation of a section 4.55(2) modification to the original development consent.

2. The provision of six monthly updates to the Infrastructure Advisory Committee.

3. The first six monthly update to include consideration of budget implications.

(Lyon/Ndiaye) .

Legal/Statutory/Policy Considerations

As per a previous report (I2022/656), it is considered that the Lot 1 Myocum Quarry currently contains a high level of regulatory risk, and potentially high levels of financial, reputational, environmental and workplace health and safety risk operating the quarry in its current state and under the current DA. However, as the site is no longer being actively quarried, and that the NSW EPA has been consulted, visited site and approved a special EPL condition to use the site for road and flood materials storage and transfer, the matters are no longer considered urgent.

Financial Considerations

Comment by Manager Finance:

Council currently maintains a reserve for Quarry Operations that in theory has been built up over the years to eventually provide funding for rehabilitation once quarry operations cease.

The Quarry Reserve facilitated internal loans to other projects which have since been mostly repaid and the Quarry Reserve currently has a balance of $1,185,766 at 30 June 2023. The reserve is projecting at 30 June 2024 to have a balance of $934,400 after allowing for $400,000 to be expended on an Operations, Management, Rehabilitation and Plan Reviews. A further $148,600 is being transferred to the Quarry Reserve in 2023/24 to reimburse remaining historical internal borrowing but this is included in the $934,300 reserve balance expected at 30 June 2024. The reserve balance will be higher again if the $400,000 expenditure is not expended.

Consultation and Engagement

A Myocum Quarry Project Control Group (PCG) currently meets every 2 months and this is increasing to monthly to progress actions related to the Myocum Quarry Precinct. The PCG has representatives from the following Infrastructure Services branches: Works, Resource Recovery, and Assets and Major Projects; along with representatives from Corporate and Community Services and Strategic Economy and Environment as required.

Mr Bruno Kortenhorst of Leela was contacted during 2022 to understand the status of the Lot 4 Quarry, to initiate conversations regarding the completion of the lease in 2024 and the return of the property to council, and to secure a lease extension. Council is currently liaising with Leela Plantations through their solicitor BVK Solicitors Attorneys. Council is communicating directly with Leela’s contractor Bashforth’s for investigations, rehabilitation planning and practical site matters.

BYRON SHIRE COUNCIL

Staff Reports - Infrastructure Services 4.2

Report No. 4.2 Capital Works Program 2023/24

Directorate: Infrastructure Services

Report Author: Zach Fryer, Construction Coordinator

James Flockton, Infrastructure Planning Coordinator

Rodrigo Reolon, Works Engineer

File No: I2024/176

Summary:

To provide the Committee a status report on the progress of the 2023/24 Capital Works Program in conjunction with the (10) year Capital Works Program.

Updates on all Infrastructure Services Capital Works projects will be provided at the meeting via Council’s Project Management Control system, Pulse, as required.

RECOMMENDATION:

That the Committee notes the 2023/24 Capital Works Program and 10-year Capital Works program.

Attachments:

1 Works 10 Year Plan 2024-25 to 2033-34 Capital Budget for Infrastructure Advisory Committee, E2023/94997 , page 28 ⇩

2 Design & Construction Capital Works Program 2023/24, I2023/1401 , page 34⇩

Report

Attached to this report is the 10 year plan from 2024/25 onwards (attachment 1) and the approved capital works program for 2023/24 (attachment 2).

Report also outlines projects/programs currently being delivered, completed and future works for this year.

10 Year Plan 2024/25 onwards

The works team maintain a 10-year plan that is updated each year as part of the annual budget process. The update process commences in August each year and is concluded in December each year. Following this the plan is escalated internally for consideration and then to Council and community consultation process.

Attachment 1 is not a completed review, the current review has commenced, but is not complete, therefore this document is a work in progress. The budget is not currently balanced against available budgets and will need to change to balance the budgets.

It is noted that this plan is balanced each year against available projected budgets. It does not reflect the real needs of our infrastructure network. It aims to strike a mix of renewals, upgrade and new assets, that allow staff to seek grant funds with Council’s contributions for new works or upgrades while also completing essential renewal works.

Annual budgets are not sufficient to meet the renewal needs of Council, this is unlikely to change in the short term, therefore, staff have the difficult task of working out which are the most urgent works and carry the most risk to Council. Staff also try to ensure the program represents the best value for money for Council, this may result in the program looking unusual, but it will represent the best way of spending Council funds.

Capital Works Program 2023/24

Completed Projects:

· Warrambool Road – Ocean Shores

Scope: Pavement rehabilitation- fixing local roads program

· Strand Avenue Pavement Rehabilitation – New Brighton

Scope: Pavement rehabilitation and new speed hump

· North Head Road – New Brighton

Scope: Pavement rehabilitation and new speed hump

· Linda Vidler Drainage Upgrade – Suffolk Park

Scope: Drainage upgrade.

· Left Bank Road Pavement & Drainage Works - Mullumbimby

Scope: Replacement of culverts, installation of kerb and gutter, drainage upgrade and pavement rehabilitation.

· Yankee Creek Road – Mullumbimby

Scope: Pavement rehabilitation.

Active Projects:

· Carlyle Street Road Renewal – Byron Bay

· Mullumbimby Recreation Grounds Carpark - Mullumbimby

· Fern Street Shared Path - Mullumbimby

Future Projects:

· Bayshore Drive - Road Renewal and Shared Path – Byron Bay

· Lawson Street Renewal – Byron Bay

· River Terrace Pavement Rehabilitation - Mullumbimby

· Heritage Park Footpath – Mullumbimby

· Rajah Road Drainage – Ocean Shores

Staff have also reviewed and allowed, in the interim, delivery of flood damage scope of works, pending approval outcomes from Transport NSW in the second half of the fiscal year, January to June 2024. However, this is all outside our control when those EPAR works will be approved and can be programmed accordingly.

Our intentions are to be well-prepared to deliver both the internal capital works program and a portion of the flood damage scope efficiently and effectively.

We are dedicated to resource allocation, staff development, and maintaining the flexibility required to respond promptly to any changes in funding or scope.

Key issues

· NSW Reconstruction EPAR Approval impacts

· Grant Fundings and delivery timeframes

· Design - shovel ready projects

· Resourcing

There are no negative impacts proposed in this report, except for the key issues already noted above which may impact the program.

Currently, with no approved EPAR for Construction Team to deliver, staff are working along with other directorates to ensure other grant funded projects can be delivered using internal capital works teams.

Strategic Considerations

Community Strategic Plan and Operational Plan

CSP Objective		CSP Strategy		DP Action		Code		OP Activity
5: Connected Infrastructure We have connected infrastructure, transport, and facilities that are safe, accessible, and reliable	5.1: Provide a safe, reliable, and accessible transport network		5.1.5: Restore road network - Restore the affected parts of the road network that were impacted by the 2022 flood events		5.1.5.1		Flood Damage Repair program
5: Connected Infrastructure We have connected infrastructure, transport, and facilities that are safe, accessible, and reliable	5.2: Connect the Shire through integrated transport services		5.2.2: Public transport - Advocate for public transport services across Byron Shire that are convenient, regular, and easy to access		5.2.2.1		Advocate and apply for grants that improve accessibility to various transport options across the shire

Recent Resolutions

Nil

Legal/Statutory/Policy Considerations

Nil

Financial Considerations

Capital Works 10-year program have been developed around balancing budgets within projected budget allocations.

Most projects are fully funded by Council for delivery in 2023/24, with additional funding from State and Federal.

Adjustments to project budgets to reflect budget savings or additional costs are managed by either:

· Separate report to Council.

· Inclusion in September, December, March or June (end of year) Quarterly Financial Review.

Consultation and Engagement

Nil

BYRON SHIRE COUNCIL

Staff Reports - Infrastructure Services 4.3

Report No. 4.3 Deficient Inspection Budget- Australian Defence Force Modular Steel Bridge

Directorate: Infrastructure Services

Report Author: David Haupt, Road & Bridge Engineer

File No: I2024/200

Summary:

In 2018, the contractor SEE Civil completed the installation of five modular steel bridges for Council. The modular steel bridge system is a surplus Australian Defence Force system known as a Line of Communication (LOC) Bridge and known as the Cardno/RPC Panel Bridging System. The maintenance requirements for these bridges are monthly inspections, six-monthly, yearly and five yearly, however currently there is no budget allocated for these inspections to take place.

RECOMMENDATION:

That Council note and take into consideration:

1. Funding considerations for the 2024/25 Budget for Australian Defence Force bridge inspections to ensure the safety of road users and the longevity of the structures. Funding will cover:

a) scheduled monthly, six-monthly, yearly and five yearly inspections

b) live structural health monitoring investigation

c) allowable cycle loading to determine expected design life.

Attachments:

1 ADF Steel Bailey Bridges - Modular - LOC Bridge - Maintenance Manual, E2019/10876 , page 43 ⇩

Report

In 2017 council acquired five Australian Defence Force bridges, also known as a line of communication bridge. These bridges were used to replace five dilapidated bridges in 2018. The bridges replaced were:

· Booyong Bridge ID 64651

· Parker Bridge ID 64652

· O’Mearas Bridge ID 64649

· James Bridge ID 64650

· Scarrabelottis Bridge ID 64653

The Line of Communication (LOC) Bridge, also known as the Cardno/RPC Panel Bridging System is a modular steel bridge system that is used by the Australian Defence Force.

At the end of 2018 SEE Civil Completed the installation of five modular steel bridge, starting the maintenance “clock”.

Being designed to be used in a temporary setting the bridge manual requires monthly, six-monthly, yearly and five yearly inspections.

Attachment 1 to this report is Council document E2019/10876 ADF Steel Bailey Bridges - Modular - LOC Bridge - Maintenance Manual.

The inspections are objective of maintaining the integrity of each bridge in service (Section 9.1.01 Maintenance manual provided at attachment 1).

There is no current budget to implement these inspections, however, structural sag surveying has been implemented in the past, being charged under WO 2479 for Survey and Design of Englishes Bridge which was closed bringing this issue to the surface on the 17/11/2023.

It should be noted that the required inspections are more in depth/intensive than a typical bridge’s yearly inspection due to:

· Bridges being a temporary structure the structure has not been designed with sacrificial steel to allow for a set design life therefore, the design life of each bridge is assumed as 70 years. …The realised life will depend primarily on the long-term performance of the hot dipped galvanised coating of the steelwork. Therefore, it is paramount that …early detection and treatment of corrosion... to ensure the integrity of the components.

· The welded steel components are subjected to high stresses during normal use. In addition…because of manufacturing techniques… residue stress may remain in the components. (Section 9.1.02 Maintenance manual provided at attachment 1)

· Inspection Techniques that need to be employed are:

o Visual

o Dye penetration test -to detect cracks that is not visible to the naked eye which is quite labour intensive.

o Magnetic Particle test -to detect cracks that is not visible to the naked eye.

o “Special to task gauges i.e. Magnetic principle coating thickness gages etc. (Section 9.1.04 provided at attachment 1).

Attention needs to be given to all welds particularly on the bottom chords of the panels, pinhole plates… At the different periodic inspections an array of elements needs to be inspected as well as some retightening/reseating of some elements as listed below. (Section 9.1.05 provided at attachment 1)

· Monthly inspection

The inspection is to be visual with some minor labour components.

o Visual

§ Check structure for impact damage

§ Check the seating of the deck units and ramps

§ Assess the general condition of protective coating

§ Inspect for missing components:

· Panels pins and safety clips

· Brace pins and safety clips

· Chord reinforcement

· Ramp bolt and nuts

§ Inspect for Accumulation of dirt or debris on:

· Deck

· Panels

· Around bearings

· Base plate

· End post

o Manual labour

§ Ensure chord reinforcement and ramp bolts are tight.

§ Remove dirt and debris during inspection.

§ Reseat components.

Note a monthly bridge inspection form will need to be completed for this inspection.

· Six Monthly Inspection

The six monthly inspection includes a full inspection of all components from above and below the superstructure.

· Bridges are to be examined for signs of:

o Wear

o General integrity

o Condition of protective coating

o Distortion

o Misalignment

o Damage

· Items that need to be checked are:

o Panels for distortion or damage

o Check transoms, sway and end bay bracing

o Bearings are to be checked for:

§ Squareness

§ Level

§ Seating

o Deck units are to be checked for:

§ damage,

§ uneven seating

§ wear

o Special attention is to be given to fatigue cracks in main panels and chord reinforcing pin plates where access is available.

Use to be made of dye penetrant for identification.

· Sag of the bridge needs to be measured by survey and compared to limits.

· Galvanised coating of all components is to be thoroughly checked for:

o Damage

o Weakness

o Corrosion

o Manual labour

§ Ensure chord reinforcement and ramp bolts are tight.

§ Remove dirt and debris during inspection

§ Reseat components.

§ Reinstate galvanising coating

Note:

To do this we need 21 tonne Moog MBI 140-1,4/S crane unit to do these inspections.

A Six monthly bridge inspection form will also need to be completed for this inspection.

MOOG MBI 140 - 1,4/S - SICO

Image: 21 tonne Moog MBI 140-1,4/S

· Yearly – this is more related to elements being returned to storage after being disassembled.

· Five year Inspection:

The five-year inspection is for components being disassembled and measured however an alternative process is being investigated because disassembly of this bridges is unrealistic and cost prohibitive.

o Items for inspection are:

§ Dimensional check of all members using gauging examination

· Fatigue crack (section 10.1.12)

· Loss of section, by removing rust and measuring section, note loss of 10% cross-sectional area will deem it unusable.

· Elongating of holes

· Warping, kinking bending etc. (Table 10.1)

§ Strength Test

Note: In July 2023 Council should have completed a 5 year inspection (referring Booyong Bridge), however no detailed inspection has been done to date other than the traditional bridge inspection and six-monthly sag survey.

Conclusions:

Due to the lack of funding and the in depth and intensive inspection requirements staff propose that funding is included in the 2024/25 financial year budget to allow all five bridges to be inspected using the six-monthly inspection regime.

Actual costs will be reviewed with a post inspection review to analyse labour, hire and material cost which in turn would be used as a baseline to determine future yearly budget requirements from 2025/26 onwards.

In parallel funding will be required to investigate the cost of implementing strain gauges along bridge members to provide real-time data or “live structural health monitoring” to reduce the frequency of the inspections, however a cost comparison needs to be made to analyse the viability of implementing live structural monitoring vs the current required inspections.

Additional Issues to consider:

1. The structures superstructures main support is the panels as highlighted in the red box in the photo below.

These structures are at risk of collapse under a vehicle impact if the vehicle breaches the thrie-beam safety barrier. Based on AS5100 bridges are to be designed to not fail under these situations hence the design did not comply to the bridge standard.

2. Bridges are designed to take x amount of cycle loading in their design life. i.e., In regard to the Bailey Bridge the original modular steel bridge the design cycle loading is 100,000 cycles therefore the design life would be extended or shortened based on the daily traffic load. https://engineeringmanagementinstitute.org/tcep-060-bailey-bridge-civil-engineering/

In regard to the steel modular bridges, staff have not seen any reference to allowable cycle loading or the expected design life based on the current vehicle loading, this being in reference to the manuals and bridge design plans by Bridge Design Pty Ltd. Planning for the future cycle loading are critical information especially in regard to:

· Future development

· Planning for replacement

BYRON SHIRE COUNCIL

Staff Reports - Infrastructure Services 4.4

Report No. 4.4 Operations and Maintenance Works Update

Directorate: Infrastructure Services

Report Author: Kirk Weallans, Operations Coordinator - IS

File No: I2024/203

Summary:

To provide the Committee a status report on the works being carried by Council Operations and Maintenance Teams.

RECOMMENDATION:

That the Infrastructure Advisory Committee note the report.

Attachments:

1 Resheeting_Grading Program 2023_24, E2024/13293 , page 187 ⇩

Report

PAVEMENT RESEALS

Council has commenced the approved resealing program for the year.

Sections of the following roads will be resealed subject to budget:

· Repentance Creek Road, Repentance Creek

· Whians Road, Eureka

· Kings Road, Eureka (partly completed)

· Federal Drive, Federal

· Booyong Road, Booyong

· Stewart Street, Booyong

· Gulgan Road, Mullumbimby

· Minyon Street, Brunswick Heads

· Broken Head Road, Broken Head

· Seaview Street, Byron Bay

· Ruskin Street, Byron Bay

· Mullumbimbi Street, Brunswick Heads

· Short Street, Brunswick Heads

· Teven Street, Brunswick Heads

HEAVY PATCHING

Council Officers are currently seeking quotations from Contractors to complete Council heavy patching program.

Defects on the worst sections on the roads listed below have been prioritised for heavy patching subject to budget:

· Coolamon Scenic Drive, Montecollum

· Argyle Street, Mullumbimby

· Broken Head Road, Broken Head

· Keith Street (overlay), Bangalow

· Browning Street, Byron Bay

· Bangalow Road, Talofa

· Shirley Street, Byron Bay

· Myocum Road, Myocum

GRADING/RESHEETING

Council gravel road grading and resheeting work continues. Please refer to attached program. Based on the available grading budget for this finance year and estimated expenditure Council expects to complete roads up to Scarrabelottis Road. Any significant rain experienced within the shire may impact the roads prioritised for works.

Council crews have commenced grading works approved within the first package disaster funded gravel roads.

Figure 1 - Grading works completed on Kennedys Lane under disaster funding

DRAINAGE MAINTENANCE

The drainage maintenance crew is currently undertaking planned drainage maintenance in Mullumbimby. On completion of work in Mullumbimby Crews will mobilise to Brunswick Heads to complete planned drainage maintenance.

Figure 2 - Drainage Maintenance being undertaken in Hollingsworth Lane

Rural Drainage maintenance is also underway. Crews are currently fortifying a drainage channel on Huonbrook Road to prevent recurrent erosion and impact to the adjacent road.

RURAL ROADSIDE VEGETATION

Exotic grasses, introduced for pasture don’t recognise fences and often move from paddocks into the road reserve. Setaria grass is one of the main grasses that tend to impact sight distance for motorists. The grass can grow up to 300mm in a week during the high growth season. These conditions make it very difficult for the two Council vegetation crews to maintain vegetation to Council’s desired level of service.

As funds permit Council engages a sidearm contractor to help manage weed and grass growth during the high growth period. This financial year Council has engaged a contractor for a period of 4.5 weeks. Areas which have been maintained or about to be maintained by the sidearm contractor include Huonbrook Road, Wilsons Creek Road, Montecollum and Upper Main Arm Road.

WORK DELIVERY CHALLENGES

Pavement Reseal and Drainage Maintenance Challenges

All Maintenance and Capital Works Projects/Activities produce spoil. This spoil is often required to be removed and disposed from site.

Historically due to budget constraints and options for where this material can be taken too, this material has typically been lost within the road reserve. However due to a major increase in works over the past few years the opportunities to keep and lose material within the road reserve and stockpile sites has diminished.

Currently within the Shire the only avenue to dispose of spoil material is at the BSC Resource Recovery Site, which has a charge of $350 per tonne, plus haulage. To put the cost of disposal in context, let’s consider edge clearing on Gulgan Road i.e., prep work to be completed before the road is resealed. The length of Gulgan Road is approximately 4,000m – 4000m x 2 (2 sides of the road). Assuming that 0.5 meters in width and 0.1 m thickness of spoil material to be removed (will vary along Gulgan Road) then the total amount of material to be removed to facilitated the work is approximately 400m3 or 600 tonnes. The cost to dispose of the material at the resource recovery = 600 tonnes x $350/tonne = $210,000. This figure is approximately 15% of the reseal budget.

Another option available to Council outside of the shire is to dispose of this material at a licenced site which charges $70/tonne. This rate would cost Council $42,000 for this work presuming the fill is validated as clean fill through testing, haulage will represent an additional cost. The quoted cost to test and analyse the material on Gulgan Road is $14,000. The costs to manage spoil lawfully will impact the extent of works which Council is able to complete under the reseal program. It is hoped that the significant expenditure required to manage spoil as described above is only incurred for a relatively short period 1-2 years whilst Council finalises the necessary approval to stockpile material quarry with the view that the material can be used as part of the Myocum Quarry rehabilitation plan. A long term Spoil Management Strategy is currently being prepared.

A similar issue exists in regard to expenditure for any material removed through Council’s drainage maintenance works.

Resource Challenges

Operations and Maintenance has been impacted by a number of staff changes over the past few months. There has been staff movement in terms of the Operations Engineer, General Maintenance Supervisors and Stormwater Supervisor. Whilst this has provided opportunities for staff to act in higher duties whilst the roles are being recruited, it has also impacted delivery due to limited resources. For example, General Maintenance and Stormwater Maintenance crews have both been reduced to one crew for periods of time. Where possible labour hire has been accessed to help fill staff gaps.

Strategic Considerations

Community Strategic Plan and Operational Plan

CSP Objective	CSP Strategy	DP Action	Code	OP Activity
5: Connected Infrastructure	5.1: Provide a safe, reliable, and accessible transport network	5.1.2: Road renewal and upgrades - Deliver road renewal and upgrade capital works program	5.1.2.1	Continue to deliver road network annual reseal program
5: Connected Infrastructure	5.1: Provide a safe, reliable, and accessible transport network	5.1.1: Road network maintenance - Undertake road and transport network maintenance to meet the standards identified in the Asset Management Plan	5.1.1.3	Continue to deliver annual gravel resheeting program
5: Connected Infrastructure	5.1: Provide a safe, reliable, and accessible transport network	5.1.1: Road network maintenance - Undertake road and transport network maintenance to meet the standards identified in the Asset Management Plan	5.1.1.1	Continue to deliver annual urban drainage maintenance program
5: Connected Infrastructure	5.1: Provide a safe, reliable, and accessible transport network	5.1.1: Road network maintenance - Undertake road and transport network maintenance to meet the standards identified in the Asset Management Plan	5.1.1.2	Continue to deliver annual rural drainage maintenance program
5: Connected Infrastructure	5.5: Provide continuous and sustainable water and sewerage management	5.5.3: Storm-water - Provide stormwater infrastructure to manage flood mitigation and improve social and environmental outcomes	5.5.3.5	Conduct annual stormwater capital maintenance renewal works program

Legal/Statutory/Policy Considerations

Nil

Financial Considerations

Works are limited by Council’s available budget.

Venue	Conference Room, Station Street, Mullumbimby
Date	Thursday, 29 February 2024
Time	11.30am