Annexure to Specification (2001)

Urban Management Division Reference Specifications for Civil Engineering Work S190 Landscaping - Annexure

COMMENTARY

USING THE DOCUMENTS The latest edition of this annexure can be obtained by down loading from internet site http:// www.brisbane.qld.gov.au/business/ developing in brisbane. The user can either mark up a paper copy to suit the proposed contract or edit the file direct in Microsoft Word 97 (or later). Please note that the section and page breaks in the Microsoft Word file have been inserted to suit double-sided printing.

This annexure forms part of a two-part specification system. The corresponding reference specification and this annexure must be incorporated in the tender documents either by reference alone (quoting an edition date) or both by reference and physical inclusion.

The annexure modifies the reference specification by additions, deletions or amendments and takes precedence over any inconsistent provisions in the reference specification. In particular, the annexure adapts the reference specification to the technical needs for the particular project. However the user may, alternatively, employ a ‘Job Specification’ to convey job-specific information. If both annexure and job specification are used, the job specification takes precedence.

Because of the job-specific nature of the annexure, it is important to identify the project adequately in the header to the annexure or in the text of each section (either by description or by a contract serial number).

CONTRACTUAL PROVISIONS The reference specification and annexure deal only with technical and administrative matters. They do not deal with commercial arrangements. It is most important that they are used in conjunction with an adequate contract, which makes all necessary commercial arrangements including provisions for measurement of work and methods of payment.

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Urban Management Division Reference Specifications for Civil Engineering Work S190 Landscaping - Annexure

INSPECTION (Clause 2.1) Specify additional witness points for the Contract. [Insert the relevant requirements or insert ‘Not Applicable’]

......

Specify stages where notification is not required for the Contract. [Insert the relevant requirements or insert ‘Not Applicable’]

......

Specify hold points (ie work stages that cannot proceed without approval) in the Contract. [Insert the relevant requirements or insert ‘Not Applicable’]

......

SAMPLES (Clause 2.2) Specify any required samples or quantities, which differ from the specification. [Insert the relevant requirements or insert ‘Not Applicable’]

Item Quantity

December 2001 1 Urban Management Division Reference Specifications for Civil Engineering Work S190 Landscaping - Annexure

PREPARATION (Clause 3.1) Unless shown on the drawings, specify acceptable weed eradication methods or treatments, if there is heavy infestation of particular weed types especially if they are noxious weeds. (Note: Manual removal is preferred when practical.) [Insert the relevant requirements or insert ‘Not Applicable’]

Weed type Acceptable treatment method

Unless shown on the drawings, specify means of embankment stabilisation (matting overlay or hydromulching). Area planting (if any) must also be specified. Trees and shrubs should be shown on the drawings. [Insert the relevant requirements or insert ‘Not Applicable’]

Location or area Stabilisation method Area planting

If the matting overlay is described as a proprietary item, it may not to specify the other characteristics (type, weight, thickness). [Insert the relevant requirements or insert ‘Not Applicable’]

Location or area Type Weight (kg/m 2) Thickness (mm)

Specify for each rock work feature. [Insert the relevant requirements or insert ‘Not Applicable’] Location:...... Rock type: (eg granite)...... Rock source:...... Supplier's description:...... Nominal size:...... Surface condition: (eg fresh/ fractured/ weathered/ lichen covered)......

Specify monetary compensation if damages to rock outcrops occur. [Insert the relevant requirements or insert ‘Not Applicable’]

Item Value for damages ($)

SUBSOIL (Clause 3.2) Specify ripping depths to ripline planting areas. For example a 450 mm depth may result in bringing subsoil to the surface and this depth requires a fairly heavy machine. [Insert the relevant requirements or insert ‘Not Applicable’]

Description of ripline planting areas Ripping depth (mm)

Specify cultivation depths (minimum 100 mm) and cultivation methods. (Note: 100 mm may not be achievable for hydroseeded or hydromulched areas on rocky or steep slopes. The 100 mm also assumes that the subsoil is of sufficient good quality at planting areas, and therefore it is not necessary to excavate and to import topsoil.) [Insert the relevant requirements or insert ‘Not Applicable’]

Location Cultivation depth (mm) Cultivation method Grassed areas (seeded, turf, strip turf) Hydroseeded or hydromulched areas Planting areas

Specify all additives or conditioners during cultivation. (Note: Gypsum may be used where the site topsoil is heavy clay provided the planting is not lime sensitive, or where the subsoil is heavy clay, to improve drainage. Other additives include lime or dolomite to reduce acidity in highly acidic soils, and sulfur to reduce alkalinity in highly alkaline soils.) [Insert the relevant requirements or insert ‘Not Applicable’]

Planting type and soil type Additive type Dosage rate

TOPSOIL (Clause 3.3) Specify any imported topsoil source. [Insert the relevant requirements or insert ‘Not Applicable’]

Soil key Soil type Mixture

Vary topsoil particle size table as necessary to suit project. [Insert the relevant requirements or insert ‘Not Applicable’]

AS sieve aperture % passing by mass 2.36 mm 1.18 mm 0.60 mm 0.30 mm 0.15 mm 0.075 mm

The topsoil properties schedule in the specification is partially completed with typical values. Vary as necessary to suit the project. Also refer to AS 4419. [Insert the relevant requirements or insert ‘Not Applicable’]

Property Type Value Nutrient levels Phosphorus (P) (mg/L) Potassium (K) (mg/L) Sulfur (S) (mg/L) Calcium (C) (mg/L) Nitrogen (N) (mg/L) Manganese (Mn) (mg/L) Nitrogen drawdown Additives Gypsum (% by volume) Compost Other properties Organic matter (% by mass) Wettability Soil reaction (pH) Electrical conductivity (dS/m) Dispersibility Soluble salts (% by mass) Moisture content (% by mass) Toxicity index to AS 3743 Permeability (m/s)

Unless shown on the drawings, specify texture, use and depth in the topsoil application schedule. [Insert the relevant requirements or insert ‘Not Applicable’]

Location (eg dryland Soil texture (eg fine) Depth* (mm) grassed areas)

* Fill this column only if topsoil depths are different to the specified defaults.

Define designated areas on site where surplus topsoil can be spread. [Insert the relevant requirements or insert ‘Not Applicable’] ......

COMPOST AND FERTILISER (Clause 3.4) Complete compost schedule. (Note: If organic matter is called for, compost may not be necessary.) [Insert the relevant requirements or insert ‘Not Applicable’]

Compost key Location Type (eg spent Application rate (eg mushroom compost) 4 topsoil: 1 compost, by volume)

Complete fertiliser schedule. (Note: N:P:K ratios and application rates vary greatly depending on conditions of use.) [Insert the relevant requirements or insert ‘Not Applicable’]

Fertiliser key Location (eg N:P:K ratio Application rate hydroseeding) (kg/ha)

GRASS SEEDING (Clause 4.1) Complete sowing schedule if the mix designation differs from the specification. [Insert the relevant requirements or insert ‘Not Applicable’]

Mix designation (eg Mix type E):...... Location:...... Seed type 1 species (eg Tall Fescue)...... Seed type 1 application rate (eg 180 kg/ha):...... Seed type 2 species (eg Kentucky Blue Grass)...... Seed type 2 application rate (eg 60 kg/ha):...... Sowing method:...... Mowing height (mm):......

Specify protection period to newly sown areas against traffic. [Insert the relevant requirements or insert ‘Not Applicable’] Protection period (months):......

HYDROSEEDING AND HYDROMULCHING (Clause 4.2) Complete the hydroseeding and hydromulching schedule. [Insert the relevant requirements or insert ‘Not Applicable’] Location:...... Seed mix type (eg type B):...... Mulch type (eg straw, fibre)...... Slurry type (eg hydroseeding mixture):...... Water application rate (L/ha)...... Binder type:...... Binder application rate (L/ha):...... Fertiliser type:...... Fertiliser application rate (L/ha):...... Fertiliser application method (eg included in the slurry):......

TURFING (Clause 4.3) Complete turfing schedule. [Insert the relevant requirements or insert ‘Not Applicable’] Turf species or variety (eg couch):...... Minimum thickness (mm):...... Turf roll size (eg 1000 x 300 mm)...... Location:...... Mowing height (mm):......

TEMPORARY GRASSING (Clause 4.4) Specify details of temporary grassing, if different from the specification. [Insert the relevant requirements or insert ‘Not Applicable’] Location:...... Seed mix type:......

PLANT CONTAINERS AND STOCK SIZES (Clause 5.2) Unless shown on the drawings, complete plant schedule of the developed stock size of all plants including feature specimens. [Insert the relevant requirements or insert ‘Not Applicable’]

Plant species Container Minimum trunk Plant height (m) size calliper (mm)

Specify fertilising rate. [Insert the relevant requirements or insert ‘Not Applicable’] Application rate (kg/ha):......

TRANSPLANTING (Clause 7.0) Complete transplanting schedule. [Insert the relevant requirements or insert ‘Not Applicable’]

Species Method Pruning Notification

MULCHING (Clause 8.1 and 8.4) Complete mulching schedule. The specification gives mulch properties and depths but not the types. Unless shown on the drawings, specify mulch types from brush clippings and leaf litter, pine bark, pine flakes, straw, washed river pebble, decomposed granite gravel, crushed quartz, marble chip gravel, slate, shale or scoria. [Insert the relevant requirements or insert ‘Not Applicable’]

Location in the Works Mulch type Thickness (mm)

STAKES AND TIES (Clause 9.1) Complete stake and tie schedule if the requirements of the specification are insufficient. In particular large trees or shrubs may require special consideration. [Insert the relevant requirements or insert ‘Not Applicable’]

Species Stake size (mm) Stakes per plant Tie type Marker stakes

EARTH ANCHORS (Clause 9.2) Complete earth anchor schedule. Detailed drawing is recommended. [Insert the relevant requirements or insert ‘Not Applicable’]

Type Location Number required

TREE SURGERY (Clause 10.0) Complete tree surgery schedule. [Insert the relevant requirements or insert ‘Not Applicable’]

Plant Work required (eg repairs to insect infected limbs, root pruning, etc)

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