Engineering committee meeting (14 April)

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The engineering services committee meeting was held on 14 April 2016. Apologies were received from Cr Mirfin, and for lateness Cr Bouillir and Mayor Kempthorne. All other councillors were present.

The agenda (88 pages) included: (1) Richmond car parking survey 2015-2016, (2) Chairman’s report, (3) Water services – options for service provision – s 17A review, (4) Water and wastewater reticulation – Mapua, (5) Rivers works – options for service provision – s 17A review, (6) Rivers contract extension and procurement of new contract, (7) Severe rain event update, (8) Road safety update, and (9) Engineering services activity update.

Public forum

Mr Maxwell Clark spoke about the new funding model for the Waimea Dam. He considered the revised model was good because it made it clear that the irrigators needed to pay their fair share. Something they were not currently doing.

Mr Graeme Dick (a property developer) spoke about the development of Mapua and the major restrictions relating to water supply. He urged the Council to create urgency (as it was not in the LTP) and to fast track the supply of new water to the Mapua area. He suggested a water pipe to Mapua would cost approximately $6 million and that 140 new sections would cover that cost. From development levies.

Cr Sangster spoke about the recent Takaka flooding and the issue with water ponding at the wastewater treatment plant. He urged the Council to include gravel removal from the Waingaro River (near Duncan’s bank) as a matter of urgency.

Richmond Car Parking Survey

A powerpoint presentation developed by Ben Norrish and Dylan Waghorn (engineering summer students) was presented to the committee by staff. This presentation was subsequently followed up with a council workshop on car parking strategies.

Chair’s report

Highlights included:

  • Fluoridation. The mood of councillors was that the cost of fluoridation should fall on those who made the decision to fluoridate (ie the DHB) or central government, not TDC. Staff were asked to provide a report on the central government’s water fluoridation proposal including expected timeframes, costs, and the proposed legal framework.
  • State highway liaison meetings. Councillors discussed the frequency and timing of these meetings. It was agreed the meetings should continue, but perhaps less often.

Water services review and procurement

Council resolved to: (1) receive the report, (2) not to undertake a s 17A review, and (3) proceed with tendering for procurement of water utilities operations and maintenance services. Council also instructed staff to develop a s 17A service delivery review programme in the relevant Activity Management Plan (AMP) for the Long Term Plan (LTP) 2018-28.

Generally, a local authority must review the cost-effectiveness of current arrangements for meeting the needs of communities within its district or region for good-quality local infrastructure, local public services and performance of regulatory functions (under s 17 of the LGA). However, a local authority is not required to undertake a review if they are satisfied that the potential benefits of undertaking a review do not justify the cost of undertaking the review.

In this case, the expiry of the water utilities service deliver contract has triggered a s 17A review. However, there are potential benefits and efficiencies from deferring a future service delivery review until the review aligns with the water utility contract renewal at Nelson council (NCC). In effect, a major shared services alignment on water services with Nelson council.

Water and wastewater reticulation – Mapua

Council resolved to: (1) receive the report, and (2) approve the use of up to $300,000 for a feasibility study for water and wastewater options in Mapua in 2016-17, funded from activity balances for water ($200,000), wastewater ($50,000), and transport ($50,000). Council also requested that staff report back to council on the process to be followed, including: potential stakeholder engagement, and a breakdown of the budget prior to commencing work on the feasibility study.

Private developers have been exploring alternative water supply proposals in Mapua to either boost the council’s system capacity or create new schemes. Recent investigations into interim water supply solutions for Mapua confirm that the Council’s water network is at capacity and cannot accommodate more growth above the water already allocated. The wastewater network is also at capacity and must be upgraded before it can accommodate growth beyond the developments already consented in Mapua.

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Under the current Long Term Plan, water and wastewater works to renew the water main and provide substantial additional capacity for growth won’t be completed for approximately 12 years. Ongoing significant water pipe breaks are threatening the delivery of an acceptable Level of Service (LOS) to residents. These are not yet at a level that justifies early intervention.

However, staff are concerned that either growth demand or excessive pipe failure in the future could warrant action before upgrade works are currently programmed – or adequately planned. Hence, staff propose to advance a feasibility study in 2016-17 that will allow the selection of a preferred design option, sizing, and programming, for both water and wastewater. The study will consider whether works should be brought forward in the future (if needed).

Rivers work review

Council resolved to: (1) receive the report, (2) not to undertake a s 17A review, and (3) proceed with tendering for procurement of water utilities operations and maintenance services. Council also instructed staff to develop a s 17A service delivery review programme in the relevant Activity Management Plan (AMP) for the Long Term Plan (LTP) 2018-28.

Generally, a local authority must review the cost-effectiveness of current arrangements for meeting the needs of communities within its district or region for good-quality local infrastructure, local public services and performance of regulatory functions (under s 17 of the LGA). However, a local authority is not required to undertake a review if they are satisfied that the potential benefits of undertaking a review do not justify the cost of undertaking the review.

In this case, the expiry of the river works contract has triggered a s 17A review. However, there are potential benefits and efficiencies from deferring a future service delivery review until the review aligns with the water utility contract renewal at Nelson council (NCC). In effect, a major shared services alignment on river works with Nelson council.

Rivers contracts

Council resolved to: (1) receive the report, and (2) approves the extension of the rivers maintenance contract C840 with Taylors Contracting Ltd until 30 September 2016.

Council currently has a contract with Taylors Contracting Limited to provide physical works in “X” and “Y” classified rivers. This is a 5-year contract (3+1+1 years) which expires on 30 June 2016. Staff sought to extend the current contract by 3 months to enable a review and develop contract documents for the new tender process. If approved, the current rivers contract would expire on 30 September 2016.

Severe rain event

Council resolved to receive the report.

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A severe storm event (across the whole district) occurred on 23-24 March 2016. Over 24 hours 250-350mm of rainfall fell across the northwest ranges and Kahurangi National Park area, and 150-200mm about the Richmond Ranges.

Location

Total Rainfall (mm)

Aorere at Collingwood

298

Anatoki at Paradise

376

Takaka at Harwoods

267

Takaka at Canaan

336

Riwaka at Takaka Hill

254

Waimea at Appleby

124

Brook at Third House

145

Lee at Trig F

174

Nelson at Founders Park

105

 

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The largest flood occurred in the Riwaka River. The flow in the South Branch tributary peaked at 96 cumecs and the flow in the North Branch tributary peaked at 94 cumecs, which was the second highest flow since records began in 1982.

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The Takaka River catchment also experienced significant flooding. The upper catchment rivers reached flows corresponding to around 15-30-year flood events and the mid catchment 5-10-year floods events. The upper Takaka River at Harwoods flow site recorded the second highest level since records began in 1975.

Location Records Start This Event (rainfall mm) Previous Highest (rainfall mm)
Collingwood Repeater 2012 298 178
Takaka at Harwoods 1988 267 265
Riwaka North at Littles 1995 227 186
Tui Close (Motueka) 1998 179 140

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Road safety

Council resolved to receive the report.

Tasman District has always had a relatively low crash history. Generally, around 70 people annually are hurt when using the road network. In 2006 and 2007, numbers were higher than normal.

In 2006, there were 3 fatal and 7 serious crashes on our road network. A further 50 minor crashes and 97 damage only incidents also occurred. In 2007, there were 2 fatal, 24 serious and 91 minor injury crashes, and 119 damage only crashes. Since 2010, there has been a steady decrease in the number of people injured on our road network. In 2015, there were no fatal crashes.

The first graph shows the fatal and serious reported crashes from 2006 to 2015. A trend line has also been added to show the reduction over time.

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The next graph shows all injury crashes from 2006 to 2015.

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The last graph shows the above data as well as non-injury (damage only) crashes.

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The graph below provides crash data from 2006 to 2015.

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The graph below shows the traffic growth (vehicle kilometres travelled) across the District from 2006 to 2015.

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Engineering services activity update

Council resolved to receive the report. Highlights from the managers report included:

  • Finances. Overall operations income and expenditure is within or ahead of budget. A total year to date operating surplus of $5.8 million is recorded. The capital works programme is behind budget overall. We are still struggling to commit all the carry forward work from the last financial year and initiate all the new capital work in the current year.
  • Health and safety. Water main excavation work vs power line (11kv power cable) incident resulted in an arc touching a digger bucket. No injuries were reported. Downer began an investigation on the morning of the incident. Immediate action has been to change their procedures.
  • Planning. Staff have developed a 2016 activity planning business plan. The plan does not outline all of the team’s work, just priorities for 2016, and indicative priorities for 2017. Transport plans include: Tasman Speed Management Plan, and District Car Parking Strategy Review. Stormwater plans include: Richmond Catchment Management Plan (CMP), and Secondary Flowpath Management. Other projects include: Regional Water Supply and Demand model, Water related TRMP changes, Water Allocation Principles and Practice, and the Joint Land Development Manual.
  • Asset database. Since the last update, 3,474 utilities asset features have been added, edited, or deleted, based on new subdivision works, repairs and council contracts are received. Progress has been made in reviewing and improving the drains data set with 138 new assets added, 34 amended and 10 features removed (added in error or superseded by piped systems).
  • Developments. Three subdivision engineering plans have been received and approved since the last update. Council’s legal advisers are preparing a deed for an area in Richmond West which has a deferred residential zoning and has the potential for an additional 500 new dwellings. It is proposed that the area will be serviced by a new wastewater pressure sewerage system draining to Headingly Lane. Residential developments (future 60 lots) off Pitfure road in Wakefield are extending into residential zoned land; discussion with the developer’s agent is continuing. Pre-application discussions on future developments in Richmond south are continuing. The Hart subdivision (33 lots) on the corner of Hill street and Hart road is nearing completion. The Mapua Joint Ventures development is continuing with the next stages (24 lots) which will see the upgrades of the Seaton Valley Road and Mapua Drive frontages to the subdivision. Stage three (36 lots) of the subdivision in Grey Street Motueka is nearing completion.
  • Stormwater. Secondary flow paths protected by easements in new subdivisions continue to be blocked by fences/gardens and enforcement may be required to maintain these flow paths. Work is underway to remove a number of willow trees and place rock protection in Reservoir Creek, Richmond. A programme of hazard identification at water utilities sites has commenced, starting with an assessment of stormwater inlets. Staff will be using iAuditor software on site which will ensure that data is entered electronically directly into the system in a consistent manner.
  • Tender Portal. TDC now have our own portal for Tenderlink (www.tenderlink.com/tasman) which is linked to the Council’s website.
  • Waste. Recycling tonnages continue to track above 2015, with year to date tonnages 24% above last year. Resource recovery centres have been busy over summer and total waste volumes are tracking 6% above budget.
  • Roads. March has seen the completion of a 300 metre aggregate overlay and associated drainage work on Korere–Tophouse Road. This has remediated a section of road that suffered severe stress due to the logging activity along this route. The gravel section of Old House Road at the intersection with Central Road has been sealed as a safety improvement. Focus was also put on replacing, extending or installing a number of culverts including at Herring Stream Road, Tadmor-Glenhope Road, Hursthouse Street and the Motueka Valley Highway. Pavement repairs to various roads in Richmond included: Bateup Road roundabout at Wensley Road, Churchill Avenue and Hill Street Rip and Remake.
  • Lighting. The conversion of street lamps to LED is on track for completion by June. Also planning is underway to convert Parks and Reserves lights which will also be completed by late June.
  • Other work. Members of the Richmond’s Men’s Shed have recently completed painting (stain) the seats and gate in Sundial Square. Site Services re-cut a new track in the road reserve extension at the end of Hill street that connects to Hill Street South. Members of the Men’s Shed have also been involved in some of this work with clearing and cutting grass and they will also be constructing a short section of shallow steps.
  • Cycle trail. A funding application has been submitted to MBIE for $223,481 for: Pomona and Marriages Roads off-road trail, Coastal erosion protection (Fittal Street), and estuary boardwalk and signage. The next focus for development will be: Wai-iti Domain to Quail Valley Road via Tunnicliff Forest, Nelson Forests Limited and Ewing Poultry; and South of Spooners Tunnel to Norris Gulley Picnic area.
  • Jackett Island. Jackett Island has experienced two medium storm events since the last inspection on 7 September 2015. There are no reports of any damage to the sandbag wall. The sand bag wall was inspected on 21 March 2016 and is generally in good condition. A further quarterly survey of the sandbag wall and beach profiles was undertaken in March.
  • Rivers. Expenditure for the river maintenance related work year-to-date was $657,000. This is $622,000 or 50% under the even monthly proportional year-to-date expenditure budget.
  • Storms. Total costs to date for road cleanup and reinstatement from the storm event on 17-18 February 2016 is $60,000, which has been funded from existing maintenance budgets. This excludes costs to repair Tasman’s Great Taste Trail.

Projects

Enclosed below are a series of you tube video’s showing the development of a number of engineering projects council have started during my first term on council:

Agenda and minutes

The agenda and minutes are located at www.tasman.govt.nz/council/council-meetings/standing-committees-meetings/engineering-services-committee-meetings/?path=/EDMS/Public/Meetings/EngineeringServicesCommittee/2016/14April2016.

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