Stormwater Drainage Drainage design parameters have been adopted from the Department of Transport Policy, and Drainage” for a “Stormwater ……..Road. The drainage design for this section of road is based on Guide to Drainage Part 5” with “Austroad 0.5EY. The project comprises of drains with regular interval off let drains and transverse drainage discharge through culverts. No floodways or causeways have been incorporated in this project. The following process has been used to define the discharge relevant to and contributing to the culverts. Main Catchments areas and the stream slope for the site have been defined using…... Bransby Williams Formula was used to calculate the time of concentration (tc). Based on the tc, the rainfall intensity was determined for using rainfall intensity data ……… for the Rainfall Intensity Frequency Duration software. …………through Rational method was used to determine the Discharge flow for for each catchment. …EY The culverts have been sized based on the calculated discharge flow from a …..EY. The culverts have been designed at the following location for transverse drainage. Catchment Area Discharge Q5 Culvert No Chainage Size Remarks (km2) (m3/sec) 1 2 3 4 Table 2: Culvert Design Details
Stormwater Drainage Drainage design parameters have been adopted from the Department of Transport Policy, “Stormwater and Drainage” for a ……..Road. The drainage design for this section of road is based on “Austroad Guide to Drainage Part 5” with 0.5EY. The project comprises of drains with regular interval off let drains and transverse drainage discharge through culverts. No floodways or causeways have been incorporated in this project. The following process has been used to define the discharge relevant to and contributing to the culverts. Main Catchments areas and the stream slope for the site have been defined using…... Bransby Williams Formula was used to calculate the time of concentration (tc). Based on the tc, the rainfall intensity was determined for ……… using rainfall intensity data for …………through the Rainfall Intensity Frequency Duration software. Rational method was used to determine the Discharge flow for …EY for each catchment. The culverts have been sized based on the calculated discharge flow from a …..EY. The culverts have been designed at the following location for transverse drainage. Culvert No Chainage Catchment Area (km2) Discharge Q5 (m3/sec) Size Remarks 1 2 3 4 Table 2: Culvert Design Details
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