Standard specification for road works 2015/2016
Standard specification for road works; Reports; PublicationNT
Made available via the Publications (Legal Deposit) Act 2004 (NT).; Check within Publication or with content Publisher.
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
Roads -- Northern Territory -- Works -- Periodicals.
Department of Infrastructure
CLEARING, GRUBBING AND REHABILITATION STANDARD SPECIFICATION ROADWORKS DoI REFERENCE TEXT December 2015 Page 24 3. CLEARING, GRUBBING AND REHABILITIATION GENERAL 3.1 SPECIFICATION REFERENCE; Refer to the Standard Specification for Environmental Management and to the RFT. BURNING; Do not light fires or burn any demolished material or vegetation either on or off the site. CLEARING 3.2 DEMOLITION; Remove fencing, buildings, kerbing, debris, drainage structures, old road surfaces and other structures as required. REMOVAL; Except for materials to be salvaged and retained by the Superintendent take possession of demolished materials and remove them from the site. SALVAGED ITEMS; A list of items to be salvaged is included in PROJECT SPECIFIC REQUIREMENTS in the RFT EXTENT; Clear the site only to the extent shown on the drawings and specified in this section. ACCESS; Allow 3 metre wide cleared access ways around proposed culverts, gravel pits and stockpiles. EXCESS CLEARING; Where excess clearing has taken place beyond that specified or shown on the drawings pay compensation for the damage and rehabilitate the areas in accordance with the Reinstatement clause. COMPENSATION; Pay compensation (To be charged as a negative variation to the Contract) for excess clearing at the rate of $5 per square metre. TREES TO BE RETAINED 3.3 Retain selected trees shown on the drawings or as directed. PROTECTION; Protect from damage trees which are required to be retained. Do not remove topsoil from the areas within the dripline of the trees and keep the area free of construction equipment and materials. DAMAGE; If a tree, which is marked to be retained, is damaged and repair work is considered impractical, or is attempted and fails, remove the tree and the root system, if so directed. Replace the tree with a tree of the same species and similar condition and size or pay compensation. Compensation for damage to existing vegetation shall be borne by the Contractor as a negative variation to the Contract and determined as follows: Tree valuation rate: $10 per cm. of tree circumference at a height 1 m above the ground. Maximum valuation: $2500 per tree Minimum valuation: $250 per tree MULCHING 3.4 Mulch all cleared vegetative matter in mechanical brush chippers to a maximum size of 100 mm as the clearing work proceeds. Do not stockpile cleared material for later mulching. STUMPS; Stumps and other material unsuitable for mulching may be buried in disused gravel pits during rehabilitation of the pits. GRASSES; Do not mulch grass clods, roots or other components containing viable propagules. This material may be buried in disused gravel pits. STOCKPILES; Stockpile mulched material on the site at a maximum height of 2 m for use during reinstatement work. URBAN AREAS; Stockpile mulch on the site for reuse and deliver surplus mulch as directed by the Superintendent (within 10 km of the site) for use in local landscaping projects. RURAL AREAS; Stockpile mulch on the site for reuse and power blow surplus mulch into the adjacent natural vegetated areas adjacent to the works. STRIPPING OF TOP LAYER 3.5 EXTENT; Strip the top layer of natural material to a depth of 100 mm, for the full formation width. Stockpile stripped material at sites within 1 km of the point of origin. Stockpile heights not to exceed 2.0 m. Spread stripped material on areas to be landscaped and/or on road batters, following completion of earthworks. TREATMENT OF EXISTING SEALED 3.6 SURFACE Rip the existing sealed surface. Conform to the following: Table 3.1 Treatment of Existing Sealed Surface Specified Cover Over Existing Seal Maximum Seal Fragment Size Fill depth 500 mm or greater 1 m 2. Fill depth less than 500 mm Remove seal from site. Pavement resheeting only Remove seal from site and replace with similar volume of pavement.