Standards and Specifications Technical Specifications

The following technical standards8 are referred to for minor structures:

Minor structures (TS 26)

11.10.1.4 Risk

Section 10.2 of this AMP outlines Risk Management relating to the Transportation Network.

11.10.2

Future Maintenance Costs

Table 88 sets out the projected maintenance expenditure for the minor structure assets for the next 10 years. This budget uses the 2014/15 contract costs plus inflation based on the Berl inflation rate for 2015/16 for roads. A forward works program will be prepared from the latest structures condition survey. The budget includes maintenance of the Hokianga Ferry, based on current contract costs plus inflation. The budget now also includes administration costs.

Table 88: Projected Maintenance Expenditure for Minor Structures

Year 2015/16 2016/17 2017/18 2018/19 2019/20 2020/21 2021/22 2022/23 2023/24 2024/25 Retaining/Sea

Wall Mtce 100,000 102,000 104,040 106,120 108,240 110,400 112,610 114,860 117,160 119,500

11.11

Quarries

11.11.1

Maintenance Planning

Maintenance work is needed on several quarries to address such issues as vegetation, fencing, and rubbish. This work has been programmed and monitored on an ongoing basis. 11.11.1.1 Historical Maintenance Expenditure

Table 89 summaries the historical maintenance expenditure for the quarry assets since 2008/09.

Table 89: Historical Maintenance Expenditure for Quarries

Year 2008/09 2009/10 2010/11 2011/12 2012/13 2013/14

Historical Maintenance Expenditure 18,400 9,447 16,433 1,020 0 10,088

8

PART C …11-18……… 11.11.1.2 Standards and Specifications

The following standard is applicable for quarries maintenance:

 Resource Consent Conditions from Northland Regional Council (NRC). 11.11.1.3 Risks

Section 10.2 of this AMP outlines Risk Management relating to the Transportation Network. One of the major risks facing Council is a lack of aggregate at key locations around the district, particularly in North Hokianga.

11.11.2

Future Maintenance Costs

There is no projected maintenance expenditure for quarry assets for the next 10 years.

11.12

Vehicular Ferry

11.12.1

Maintenance Planning

Transfield Services Limited, as Council’s contractor, operates the Hokianga Harbour Ferry Service, and is responsible for preparing and managing the agreed routine and periodic maintenance programmes for the ferry vessel; including all mechanical, electrical, hydraulic systems, re-painting and anti-corrosive maintenance to all surfaces to maintain the vessel to a serviceable and presentable standard throughout the period of the contract.

The management and operation of the ferry attracts a 60% subsidy annually from NZTA to help facilitate these operations.

The planned slipping of the vessel in August 2013 provided the opportunity for blasting and recoating the exterior of the hull. Engine operating hours at 29,209, 23,778, 23,246 and 29,300 are reasonably well shared over the four installed engines. The spare engine has been completely rebuilt and is ready for installation as a replacement, when needed. Each of the propulsion units (Schottel Pump jet) have been rebuilt at least once in the past 9 years. One unit is now due for replacement and a complete new unit has been purchased. 11.12.1.1 Historical Maintenance Expenditure

Table 90 summaries the historical maintenance expenditure for the ferry since 2008/09. Table 90: Historical Maintenance Expenditure for Vehicular Ferry

Year 2008/09 2009/10 2010/11 2011/12 2012/13 2013/14 Historical Maintenance Expenditure 887,434 871,322 827,750 974,886 947,733 1,048,178 11.12.1.2 Customer Service Requests and Complaints

There have not been any complaints regarding the ferry, only queries regarding the timetable e.g. running times across the harbour. These are all publicised on Council’s website www.fndc.govt.nz

11.12.1.3 Standards and Specifications

Maritime NZ sets standards for the maintenance of the ferry and they undertake an out of water survey at a frequency governed by the annual underwater survey.

11.12.1.4 Risks

PART C …11-19………

11.12.2

Future Maintenance Costs

The slipping of the vessel was completed in August 2013. The next underwater hull condition survey is due in 2017.

Table 91 sets out the projected maintenance expenditure for the ferry for the next 10 years. Increased funding for the Hokianga Ferry has been included, as approved at the NZTA Advisory Group Meeting 10 November 2010.

Table 91: Projected Maintenance Expenditure for Vehicular Ferry

Year 2015/16 2016/17 2017/18 2018/19 2019/20 2020/21 2021/22 2022/23 2023/24 2024/25 Routine & Periodic Operating Costs 1,053,408 1,079,743 1,107,869 1,137,785 1,170,758 1,205,836 1,243,232 1,284,210 1,327,821 1,375,646

11.13

Environmental Maintenance

11.13.1

Maintenance Planning

Environmental maintenance is carried out by Council's North, East and South Maintenance contractors, as per the conditions of the contract. Regular audits are carried out by the asset Manager to ensure that appropriate maintenance is being carried out to the standards required. There is an element of reactive maintenance that includes:

 Responding to public enquiries or RFS

 Removal of material that poses a significant risk

 Removal of material following a large storm event or flood 11.13.1.1 Historical Maintenance Expenditure

Table 92 summaries the historical maintenance expenditure for environmental maintenance (was corridor maintenance) since 2008/09.

Table 92: Historical Maintenance Expenditure for Environmental Maintenance

Year 2008/09 2009/10 2010/11 2011/12 2012/13 2013/14 Historical Maintenance Expenditure 908,420 942,375 949,392 1,001,559 906,164 984,550 11.13.1.2 Customer Service Requests and Complaints

RFS Results 2005-2014

Figure 46 show the total number of complaints received for vegetation. The types of complaints received are for “control of noxious plants on road reserve, removal of wildling trees that are blocking visibility, risk of/and trees falling on private property, removal of old windbreaks on road reserve, requests from Top Energy for removal of trees and vegetation that are of risk of falling onto power lines.

PART C …11-20……… 11.13.1.3 Standards and Specifications

Vegetation control consists of mowing berms and clearing vegetation from specified

locations. Cyclic mowing programmes are prepared by the Asset Manager and implemented to meet the required standards. These are carried out as required and because of the seasonal variations in growth, the progress is monitored throughout the year as part of the inspection programme.

Litter removal is carried out by the routine maintenance crews on the find and fix basis. The following technical standards9 _{are referred to for environmental maintenance:}

Litter and detritus removal (TS 17)

Vegetation control (TS 19)

11.13.2

Future Maintenance Costs

Table 93 sets out the projected maintenance expenditure for environmental maintenance for the next 10 years. This budget uses the current contract costs plus inflation based on the forecast for roading from Berl. Also included is a new allowance of $25k for maintenance of the Pakaraka Stock Truck effluent dump station. “Other maintenance” includes an

allowance for removal of small slips. The budget also now includes administration costs. Table 93: Projected Maintenance Expenditure for Environmental Maintenance

Year 2015/16 2016/17 2017/18 2018/19 2019/20 2020/21 2021/22 2022/23 2023/24 2024/25 Vegetation Control 922,086 940,528 959,338 978,518 998,066 1,017,983 1,038,361 1,059,108 1,080,316 1,101,893 Other Environmental Maintenance 125,000 127,500 130,050 132,650 135,300 138,000 140,763 143,575 146,450 149,375 9

PART C …12-1………

12RENEWAL/REPLACEMENT PLAN

Renewal expenditure is any major work which does not increase the asset’s design capacity but restores, rehabilitates, replaces or renews an existing asset to its original capacity. Work over and above restoring an asset to original capacity is new works expenditure.

Renewal Standards

Through the routine inspection programmes, items will be identified that are outside the routine works definitions. Where appropriate, these will be compiled into a programme for consideration by the Asset Manager as Ordered Works.

“Ordered works” are identified faults that are not generally able to be classified as routine items yet still essential to maintain the integrity of the network, and conform to the Council’s and the Asset Manager’s longer term strategies.

These faults are all gathered through inspection processes, public or call centre requests and/or from the Area Engineer. Faults are recorded and submitted through RAMM Contractor for approval and programming by the Area Engineer.

Asset Performance

Assets are renewed when they fail to meet the required level of service or may affect the life of the asset. The monitoring of asset reliability, capacity and efficiency during planned maintenance inspections and operational activity identifies non-performing assets. Indicators of non-performing assets include:

Table 94: Renewal Asset Indicators

 Structural failure  Ineffective and/or uneconomic operation

 Repeated asset failure  Unsafe conditions for public

12.1

Pavements

12.1.1

Renewal Plan

Road pavement renewal is required when the pavement layers are reaching the end of their design life and are showing signs of deterioration. Pavement renewals, rather than

resurfacing, become the best option when considering the whole life costs of the pavement. NZTA subsidy for this form of treatment is available through the following categories:

 Unsealed Road Metalling

 Sealed Road Resurfacing

 Pavement Rehabilitation