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Following flooding events which occurred in early March 2012 throughout Northern Victoria, Greater Shepparton City Council undertook a comprehensive investigation of existing drainage infrastructure within flood affected areas. The township of Tallygaroopna, located in the Goulburn Valley region of Victoria, was determined to require major drainage upgrade works with substantial flooding occurring during regular rain events.
Paffrath Consulting on behalf of Greater Shepparton City Council appointed HEC to undertake a full drainage investigation and detailed design works associated with the drainage infrastructure upgrades required within the township of Tallygaroopna. The works included the upgrade of existing underground drainage infrastructure and the increase in capacity of the existing retardation basin.
Greater Shepparton City Council required the following tasks be completed as part of the project;
Tallygaroopna Township Concept Drainage Report
An extensive investigation of the existing drainage network identifying key deficiencies within the system. Works included drainage modelling and hydraulic investigation of the existing system to determine its current hydraulic performance compared to requirements of the Infrastructure Design Manual (IDM).
Undertake and preparation Conceptual Drainage Design and hydraulic documentation for the entire Tallygaroopna urban drainage network to rectify current system deficiencies and comply with IDM requirements.
Detailed Design associated with Council proposed drainage upgrade works and support retardation basin
Level & Site Feature Survey for the proposed upgrade works area.
Service investigation and liaison with service authorities in regards to potential impacts and service upgrade works required as part of proposed drainage works.
Preliminary and Detailed design construction drawings for the Tallygaroopna drainage works and support retention basin. Detailed design documentation includes the provision of Water Sensitive Urban Design (WSUD) principles within the proposed upgraded network to enhance stormwater treatment in accordance with the “Best Practice Environmental Management Guidelines for Urban Stormwater”.
Preparation of a schedule of quantities for tendering purposes.
Preparation of an engineer’s estimate.
Preparation of all associated technical specifications.
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Following flooding events within Victoria’s Goulburn Valley area in March 2012, a number of drainage issues were identified within the township of Congupna. Paffrath Consulting on behalf of Greater Shepparton City Council engaged HEC to undertake drainage investigations and prepare detailed construction design documentation for the proposed drainage upgrade works required for an existing catchment area of 4.3Ha of developed residential land. The works included drainage infrastructure upgrades and the design of a retardation basin to increase the current Congupna township retardation capacity. The project required the following tasks be completed as part of the project;
• Full site feature and level survey.
• Investigate locations of all existing infrastructure within the site of proposed works, liaise with and where necessary obtain approval from all relevant regulatory authorities for proposed design.
• Prepare an existing services plan detailing all existing services within the vicinity of the
proposed works, Includes liaison and confirmation on site with relevant service authority
representatives.
• Detailed Design and produce construction drawings for the construction of a proposed new drainage retardation basin and new drainage pipeline to service a 4.3 ha area of developed residential land within the township of Congupna. The detailed design included Water Sensitive Urban Design (WSUD) and MUSIC modelling of elements within the existing system and within the proposed basin floor to meet the requirements outlined in the “Best Practice Environmental Management Guidelines for Urban Stormwater”.
• Prepare a schedule of quantities.
• Prepare an engineer’s estimate for drainage works (“Council Estimate”)
