Territory Stories

Standard specification for road works 2015/2016

Details:

Title

Standard specification for road works 2015/2016

Collection

Standard specification for road works; Reports; PublicationNT

Date

2015

Description

Made available via the Publications (Legal Deposit) Act 2004 (NT).; Check within Publication or with content Publisher.

Notes

miscellaneous provisions ■ provision for traffic ■ clearing grubbing and rehabilitation ■ earthworks ■ conformance testing ■ pavements and shoulders ■ stabilisation ■ spray sealing ■ dense graded asphalt ■ slurry surfacing ■ miscellaneous concrete works ■ drainage works ■ protection works ■ road furniture and traffic control devices ■ pavement marking ■ landscape ■ ducting and conduits ■ traffic control signals ■ traffic counting stations ■ street lighting ■ directional (thrust) boring ■ measurement and payment ■ referenced documents ■ nt climate zones table ■ This document specifies the general standards of materials and workmanship required by the Department of Infrastructure for construction of civil road network assets

Language

English

Subject

Roads -- Northern Territory -- Works -- Periodicals.

Publisher name

Department of Infrastructure

Place of publication

Palmerston

Edition

Second edition

Parent handle

https://hdl.handle.net/10070/265830

Citation address

https://hdl.handle.net/10070/456054

Page content

LANDSCAPE STANDARD SPECIFICATION ROADWORKS DoI REFERENCE TEXT December 2015 Page 111 16.5 PLANTING 16.5.1 Setting Out of Holes Hold Point Accurately set out the locations for trees/shrubs to be planted in accordance with the drawings. Hold point - Obtain approval of the set out from the Superintendent before commencing any planting. 16.5.2 Preparation and Treatment of Holes Identify all cable and services locations prior to excavating any holes. Prepare holes initially in accordance with Table 16.4 Initial Hole Preparation Chart located in 16.9 Tables. Remove excess excavated material, rubbish and cut vegetation from site. Excavate planting holes by mechanical/manual means. Size of planting holes shall be twice the diameter and twice the depth of the plant container, unless shown otherwise on the drawings. Break up glazed sides of holes. Treat planting holes in hard, dense material prior to planting by - placing 1 kg Gypsum or Claybreaker around the sides and bottom of the hole; and - filling hole with water and allowing to drain. Treat holes with Fipronil in accordance with manufacturer's instructions prior to planting. 16.5.3 Supply of Plants Place an order with an approved nursery for the supply of all plants required to complete the works within seven days of acceptance of tender. Ensure that a minimum of five or 5%, whichever is the greater number, additional plants of each species nominated is available if necessary for replacement purposes. Remove immediately from the site all dead, dying or diseased plants and replace with new plants of the same species. 16.5.4 Treatment of Plants Do not use chemicals on site. Containerised plantings shall be well watered prior to despatch from the nursery and shall remain in the containers until required for planting. Protect all plants during transportation, against excessive sunlight, wind and drought. Trees and shrubs which are not immediately planted shall be stood upright on level ground, protected and maintained in good condition by the Contractor. Replace immediately all plantings which have become damaged, missing or fallen below the specified standard. Drive any tree stakes required into the ground before planting so as not to damage the root ball. Check regularly for any termite/insect attack or fungal infestation. Carry out eradication by use of sprayed insecticide or fungicide in accordance with the manufacturer's instruction. 16.5.5 Planting of Trees, Shrubs and Ground Cover Planting shall take place only in conditions where temperature range is below 32 C. Maintain the integrity of the plant root zone and the surrounding earth mould. Place fertiliser in the hole adjacent to, but not in contact with, the root zone of the plant. Fertiliser shall be in accordance with Table 16.3 - Fertilisers located in 16.9 Tables. Application rates in accordance with Table 16.5 - Fertiliser Application Rates located in 16.9 Tables. 16.5.6 Backfilling Backfill material shall be in accordance with Table 16.4 Initial Hole Preparation Chart located in 16.9 Tables. Backfill the hole so that the plant is contained firmly in the ground in a vertical position. Backfill the hole to finish surface level and dish to retain water. Work surface fertiliser into top 50 mm of backfill. Fertiliser shall be in accordance with Table 16.3 - Fertilisers located in 16.9 Tables. Application rates in accordance with Table 16.5 - Fertiliser Application Rates located in 16.9 Tables. Water backfill material immediately after surface fertilisation to ensure no air voids or loose material surround the plant root zone. 16.5.7 Watering and Maintenance Maintain each planting area in a moist condition to promote healthy growth. Weed and prune as required to maintain plants in a healthy condition. 16.5.8 Mulching Supply mulch as specified that is free from weeds, seeds, sticks, stones, insects, diseases and other deleterious matter. Provide, where specified, organic mulch in a 100 mm thick compacted layer for a 500 mm radius from the main stem. Ensure a gap of 50 mm is retained between the main stem and the mulch.