205.5.3 Pavement Spread Limits to Main Roads Road and Traffic Engineering Branch’s Guideline to Austroads GRD Part 5A: Drainage Road Surface, Networks, “Supplement – Basins and Subsurface Document No. D15#415254 . ” 205.5.4 Drainage Pipe Runs Drainage pipe runs for longitudinal drainage shall be in accordance with Main Roads’ Road and Traffic Engineering Branch’s Guideline to “Supplement Austroads GRD Part 5A: Drainage Road Surface, Networks, Basins and – Subsurface” Document No. D15#415254 and manufactured to Main Roads’ (TDP) Specification 404 “Culverts”. 205.5.5 Culverts Drainage Recurrence Interval: Transverse Drainage Systems: 50 years <Contact Senior Waterways Engineer (SWE) to determine the appropriate ARI.> Culverts for cross-carriageway drainage shall be designed to use Main Roads’ approved products from commercially available sizes, manufactured to Main Roads’ (TDP) Specification 404 “Culverts”. The minimum culvert and RCP culvert classes hall be in accordance with Main Roads Road and Traffic Engineering Branch’s Guideline to “Supplement Austroads GRD Part 5B: Drainage Open Channels, Culverts and Floodways – ” Document No. D15#363173 . Culvert invert levels shall be pegged on site to fine-tune the level and chainage. Rock protection shall be provided in accordance with Main Roads Road and Traffic Engineering Branch’s Guideline to Austroads GRD Part 5B: “Supplement Drainage Open Channels, Culverts and Floodways” Document No. – D15#363173 . 205.5.6 Subsoil Drains Any investigation of soft or wet areas shall be undertaken in accordance with the procedures given in Section 204 Ground Investigations and Pavement Design. The Consultant shall determine where subsoil drainage will be required to ensure adequate drainage of pavement subgrades and to prevent "wetting up", and shall design the system accordingly including any remedial measures which may be necessary to alleviate the problem. Subsoil drainage shall be designed in accordance with Main Roads Road and Traffic Engineering Branch’s Guideline to Austroads GRD Part 5A: Drainage Road Surface, Networks, “Supplement – Basins and Subsurface Document No. D15#415254 . ”
205.5.3 Pavement Spread Limits to Main Roads Road and Traffic Engineering Branch’s Guideline “Supplement to Austroads GRD Part 5A: Drainage – Road Surface, Networks, Basins and Subsurface ” Document No. D15#415254 . 205.5.4 Drainage Pipe Runs Drainage pipe runs for longitudinal drainage shall be in accordance with Main Roads’ Road and Traffic Engineering Branch’s Guideline “Supplement to Austroads GRD Part 5A: Drainage – Road Surface, Networks, Basins and Subsurface” Document No. D15#415254 and manufactured to Main Roads’ (TDP) Specification 404 “Culverts”. 205.5.5 Culverts Drainage Recurrence Interval: Transverse Drainage Systems: 50 years <Contact Senior Waterways Engineer (SWE) to determine the appropriate ARI.> Culverts for cross-carriageway drainage shall be designed to use Main Roads’ approved products from commercially available sizes, manufactured to Main Roads’ (TDP) Specification 404 “Culverts”. The minimum culvert and RCP culvert classes hall be in accordance with Main Roads Road and Traffic Engineering Branch’s Guideline “Supplement to Austroads GRD Part 5B: Drainage – Open Channels, Culverts and Floodways ” Document No. D15#363173 . Culvert invert levels shall be pegged on site to fine-tune the level and chainage. Rock protection shall be provided in accordance with Main Roads Road and Traffic Engineering Branch’s Guideline “Supplement to Austroads GRD Part 5B: Drainage – Open Channels, Culverts and Floodways” Document No. D15#363173 . 205.5.6 Subsoil Drains Any investigation of soft or wet areas shall be undertaken in accordance with the procedures given in Section 204 Ground Investigations and Pavement Design. The Consultant shall determine where subsoil drainage will be required to ensure adequate drainage of pavement subgrades and to prevent "wetting up", and shall design the system accordingly including any remedial measures which may be necessary to alleviate the problem. Subsoil drainage shall be designed in accordance with Main Roads Road and Traffic Engineering Branch’s Guideline “Supplement to Austroads GRD Part 5A: Drainage – Road Surface, Networks, Basins and Subsurface ” Document No. D15#415254 .
Section%20205%20Road%20Design%20^26amp^3B%20Traffic%20Engineering%20Rev%208.RCN-D16^23565485.DOCX