Information

  • Address

  • DA No.

  • Conducted on

  • Prepared by

SUBDIVISION LOCATION DETAILS

  • Development Application No.

  • Development Proposal

  • Lot

  • DP

  • Assessment Officer

  • Assessment Date

  • Signing Officer

1. PRELIMINARY

  • DA approval

  • Date of Approval

  • Are there any S96 amendments?

  • Part

  • Part approval date

  • 1.1 Check Construction Certificate (CC) fees paid and correct

  • 1.2 Check hard copy plans (Engineering plans in A1) and any other required documents are provided

  • 1.3 Check electronic copy of "DRAINS" drainage design is provided

  • 1.4 Check all application documents and fees paid are registered in ECM & Authority

  • 1.5 Check if there are any other current DA's that relate to same site

  • 1.6 Access relevant Council Development Control Plan (DCP) that the DA must comply with

  • 1.7 Review hard copy of DA (including plans) & identify all items in DA relevant to CC application

2. LAYOUT PLANS

  • 2.1 Layout and boundaries of road reserves, pathways, public reserves, lots and easements

  • 2.2 Existing contours and final surface contours to be shown

  • 2.3 Extent and depth of cut and fill to comply with DA approved plan

  • 2.4 Grade, batters and cuts to be provided & to comply with DA approved plan

  • 2.5 Details of retaining walls to be provided & comply with DA approved plan

  • 2.6 Existing natural features such as cliffs, watercourses, swamps, dams, clusters of trees with diameter of 0.2 or greater

  • 2.7 Any environmental, historical or sites of aboriginal significance to be shown on plan

  • 2.8 Any improvements on the land

  • 2.9 Limit of works including cuts and fills

  • 2.10 Road chainages and widths of footpath & carriageway, control points, bench marks, datum & ties to existing boundaries

  • 2.11 Kerb & Gutter alignment, profile, footpath & pedestrian ramp locations

  • 2.12 Location of subsoil drains

  • 2.13 Existing and proposed drainage lines and structures suitably identified & diameter indicated

  • 2.14 Notation regarding provision of guide posts and guard rails

  • 2.15 Road centreline bearings, centreline, kerb return & cul-de-sac radii

  • 2.16 Tangent points to horizontal curves & kerb returns

  • 2.17 Large vehicle turning paths in critical areas

  • 2.18 Location of existing & proposed service mains

  • 2.19 Pavement details & design including structural design for flexible pavement, concrete pavement & segmental pavement

  • 2.20 Earthworks, Batters, Cuts & Retaining Walls. Detailed plans and sections may be required

  • 2.21 Sediment & Erosion Control Plan

  • 2.22 Street furniture, street names signs, traffic management plan

  • 2.23 Scale not less than 1:500

3. ROAD LONGITUDINAL SECTIONS

  • 3.1 Longitudinal sections are required on all new roads & on existing roads where part width construction is required

  • 3.2 New road longsections shall extend 45 metres into existing roads

  • 3.3 Road centreline chainage

  • 3.4 Tangent points, kerb return tangent points & intersection points

  • 3.5 Existing & finished surface

  • 3.6 Existing & finished levels including footpaths in cul-d-sac

  • 3.7 Existing culverts, sewer, water, gas, electricity

  • 3.8 Grades, vertical curves, high points & low points

  • 3.9 Limit of work to be shown on plans

  • 3.10 Scales shall not be less than 1:500 H & 1:100 V

4. ROAD CROSS SECTIONS

  • 4.1 Cross sections shall be provided at a maximum of 15 metre intervals, tangent points and other critical locations.

  • 4.2 Cross section shall extend a minimum of 5 metres beyond road reserve boundaries

  • 4.3 Cross section scale shall be not less than 1:200

  • 4.4 Details to be shown on cross sections:<br>• Chainage & offsets<br>• Existing & finished surface <br>• Existing Finished surface levels<br>• Cross sections at Kerb Return TP's, half width sections at IPs shall be shown<br>

5. KERB RETURN DETAIL PLANS

  • 5.1 Kerb return detail plans shall be provided for all intersections & cul-de-sac

  • 5.2 Plans shall be at a scale of not less than 1:200

  • 5.3 Details to be shown on kerb return plan:<br>• kerb return layout plan<br>• Finished pavement surface contours<br>• Drainage details<br>• Lot numbers of adjacent lots<br>

6. KERB RETURN LONGITUDINAL SECTIONS

  • 6.1 Shall be provided for all intersections & cul-de-sacs

  • 6.2 Low point shall be beyond the TP of the kerb return

  • 6.3 Long section shall extend minimum of 5m beyond TP's

  • 6.4 Sections shall be presented at a scale of 1:200 H & 1:50 V

  • 6.5 Details to be shown on KR longsection:<br>• Kerb chainage<br>• Finished surface<br>• Finished levels<br>• Low Point<br>• High points<br>• Vertical curve details<br>

7. DRAINAGE LONGITUDINAL SECTIONS

  • 7.1 Shall be provided for all drainage lines including interalotment lines

  • 7.2 Scale shall be 1:500 H & 1: 100 V

  • 7.3 The following details required:<br>• Chainage<br>• Existing & finished levels<br>• Existing & finished surface levels at each pit/headwall & at 15m max intervals<br>• Pipe invert at each pit/headwall<br>• Drainage structures<br>• Pipe grade, design discharge, velocities, pipe class & pipe bedding details<br>• Hydraulic Grade Line<br>• Service locations<br>

8. CATCHMENT PLAN

  • 8.1 Scale not less than 1:1000

  • 8.2 The following details required:<br>• Layout & boundaries of road reserves, pathways, public reserves, lots & easements<br>• Existing & proposed drainage lines, both major & minor routes including interalotment drainage lines<br>• Catchment & subcatchment limits with contributing area in hectares.<br>• Final surface contours<br>• Crests & Sags in roads<br>• Existing watercourses<br>• Adjacent contributing catchments with contributing area in hectares<br>• Limit of inundation by the 1 in 100 year Average Recurrence Interval Flood<br>

9. Erosion & Sediment Control Plan

  • 9.1 Scale not less than 1:1000

  • 9.2 Plan shall be approved by DECCW prior to being lodged with council

  • 9.3 The following details required:<br>• Layout & boundaries of road reserves, pathways, public reserves, lots & easements<br>• Existing contours & final surface contours<br>• Location of existing vegetation & proposed vegetated buffer strips<br>• Location of critical areas (vegetated buffer strips, drainage lines, water bodies, unstable slopes, flood plains & seasonal wet areas)<br>• Diversion of uncontaminated runoff around areas to be disturbed <br>• The nature & extent of proposed earthworks, including areas of cut & fill.<br>• Location of erosion & sediment control structures. Specification for maintenance of control works<br>• Details for disposal of intercepted sediment<br>• Rehabilitation proposals<br>• Dust control measures<br>

10. ROAD DESIGN CONTROLS

  • 10.1 Footpath Crossfalls<br>• Standard 4%<br>• Maximum 6%<br>• Minimum 2%<br>• Overland Flow -1%<br>

  • 10.2 Road Pavement Crossfall<br>• Standard 3%.<br>• Maximum 6%.<br>• Minimum 2%<br>

  • 10.3 Max Grade for 6m & 11m roads shall be 16%. Grades up to 20% can be considered

  • 10.4 Max Grade for > 11m roads shall be 10%

  • 10.5 Min Grade for any road 0.5%

  • 10.6 Lengths of roads at limiting grades to be kept at minimum

  • 10.7 Cul-de-sac crossfall min 1.5% max 8%

  • 10.8 Maximum batter slope not to exceed 4%

  • 10.9 Minimum Kerb Return radius 7.5m

  • 10.10 Minimum cul-de-sac radius 10.5m

  • 10.11 Minimum centreline radius 30m

  • 10.12 Sight distance at intersections to comply with AUSTROADS "Guide to Road Design"

  • 10.13 Lengths of vertical curves shall be determined AUSTROADS "Guide to Road Design"

  • 10.14 Minimum length of vertical curve at intersection of minor road with the through road shall be 8m

  • 10.15 Minimum angle of intersections shall be 70 degrees

  • 10.16 At intersections the minor road shall be graded to conform with the levels of the gutterline of the through road

11. DRAINAGE

  • 11.1 Estimation of discharge shall be by a method detailed in "Australian Rainfall & Runoff"

  • 11.2 "Drains" program to be used for modelling

  • 11.3 Design average recurrence:-<br><br>Roadway, accessway <br>Minor - 1 in 10<br>Major - 1 on 100<br>Relief of low point through private property. Allow for blockages<br>Minor - 1 in 100<br>Major - 1 in 100<br>Relief of low point through public open space<br>Minor - 1 in 10<br>Major - 1 in 100<br>Dual use Floodway (passive open space)<br>Minor - 25% of 1 year flow<br>Major - 1 in 100<br>Detention basins (passive open space)<br>Minor - 25% of 1 year flow<br>Major - 1 in 100<br>Spillway to allow for PMF<br>Dual use Detention Basins (Active open space)<br>Minor - 1 in 1<br>Major - 1 in 100<br>Spillway to allow for PMF<br>Subsoil drainage to be installed<br>

12. DRAINAGE DESIGN CONSTRAINTS

  • 12.1 Maximum width of flow in gutter is 2.45m

  • 12.2 Depth in gutter not to exceed 200mm for 1 in 100 event

  • 12.3 Bypass flow at pit not to exceed 20%

  • 12.4 Minimum pipe size draining public areas 375mm diameter

  • 12.5 Min Inter-allotment drainage line is 150mm diameter, 400mm deep

  • 12.6 Maximum water level in pit shall be 150mm below gutter invert

  • 12.7 Maximum spacing of pits is 100m

  • 12.8 Minimum velocity 0.6m/s Max velocity is 8m/s

  • 12.9 Velocity of flow outside of pipelines & designated floodways is 0.4m/s. Roadways.

  • 12.10 Ilsax model parameters <br>Soil type 3<br>AMC 3<br>Paved area depression storge 1mm<br>Pervious area depression storage 5mm<br>

  • 12.11 Impervious areas<br>Residential 45%<br>Road reserve 70%<br>Medium Density Res 80%<br>Commercial 100%<br>Industrial 100%<br>Public Rec 25%<br>

  • 12.12 Inlet lengths<br>Nominal 1.8<br>2.4 & 3.00 acceptable <br>

  • 12.13 Pipes & culverts to be designed using Hydraulic grade line method

  • 12.14 Pipe Friction Losses<br>Spun concrete 0.3<br>Fibre reinforced cement 0.06<br>uPVC 0.06<br>

  • 12.15 Pit Head Losses<br>As per recommendations in Code<br>

13. OPEN DRAINS

  • 13.1 Velocity depth product shall not exceed 1m/s

  • 13.2 Max velocity in grass lined channels not to exceed 2m/s

  • 13.3 Max velocity in hard lined channels 6m/s

  • 13.4 Max batter slopes in channels 1 in 6

  • 13.4 Floodways signposted

  • 13.5 Fencing

  • 13.6 Indentify GPT requirements

14. FLOODWAYS

  • 14.1 Discharge not to exceed pre-developed discharge

  • 14.2 No increase in flooding downstream

  • 14.3 Embankment have freeboard 500mm above 1 in 100

  • 14.4 Spillway to safely pass the PMF

  • 14.5 Batters not to exceed 1 in 6

  • 14.6 Outlet requirements to be discussed with council

  • 14.7 Floor to be free flowing & not waterlog

  • 14.8 If pond fits into dam category it will need NSW Dam Safety approval

15. ROADWORKS

  • 15.1 Pavement to be designed by geotech & be based on road hierarchy

  • 15.2 Subgrade or subgrade replacement shall be compacted to 100% standard or 95% modified

  • 15.3 Subsoil drains to be placed on topside of carriageway or elsewhere as required. Obvert of subsoil to be 150mm below finished subgrade level

  • 15.4 Subbase to extend 150mm outside back of kerb & be compacted to 95% modified

  • 15.5 Basecourse to be compacted to 98% modified

  • 15.6 Wearing surface to be 1 layer a minimum of 40mm AC10.<br>Roundabout to be special polybuilt roundabout mix <br>

16. KERB & GUTTER

  • 16.1 Kerb to be either Roll Kerb or Barrier Kerb depending on DA consent

  • 16.2 Concrete for K & G be 20Mpa special mix

  • 16.3 Metal kerb outlet for each lot where lot drains to street

  • 16.4 Expansion joint every 9m tool joint every 3m

17 STORMWATER STRUCTURES

  • 17.1 Pipes to be either reinforced concrete or fibre reinforced cement with rubber ring joints. Class of pipe determined by cover

  • 17.2 Inter-alotment drainage can be Sewer grade uPVC pipes

  • 17.3 All stormwater mains to be CCTV at completion

  • 17.4 "Bird mouth" pit entries not permitted

  • 17.5 Pits > 0.9 to have steps (galvanised steel NOT plastic coated)

  • 17.6 Pits > 1.8 deep require reinforcing designed by structural engineer

  • 17.7 Pits to be rendered and self flushing

  • 17.8 Lintel inlets only at sag or low spots

18. GRASSING

  • 18.1 Areas to be grassed or turfed to be ripped along the contour, 100mm topsoil placed, then seeded or turfed

  • 18.2 Developer to maintain grassed areas during defects liability period

19. MANDATORY NOTES

  • 19.1 Service conduits to be installed prior to any pavement material

  • 19.2 Inspections to be arranged in accordance with code

  • 19.3 Bonds/Guarantees can be arranged for incomplete work eg asphalt, footpaths, landscaping, minor corrections

  • 19.4 Developer to maintain site during defects Liability period which is for 6 months or until developer satisfactorily completes all work

20. APPROVAL

  • Satisfactory?

  • Signature

  • Date

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