Client - Parkes Shire Council
Task - Alleviate flooding within Parkes
Value - $120,000
Date - October 2007
During 2006 Parkes encountered an intense storm that caused the inundation of many private dwellings including a Motel as well as damage to infrastructure such as streets and parkland. This damage resulted in a huge cost to the individuals and the Council.
The majority of catchments that created the large amount of runoff were urban. The drainage system within the town was inadequate resulting in an overflow from the system. Parkes Shire Council recognised the severity of the problem and to prevent any future events instigated a program of flood control. They engaged the Soil Conservation Service to design a system and construct a series of flood detention structures to eliminate future flooding within the town.
The objective of this project was to alleviate the potential of flood damage within the town of Parkes resulting from the inability of the drainage system to cater for large storm events.
The Soil Conservation Service identified four areas that were the main contributors to the flooding of sections of the town. The Soil Conservation Service designed a number of measures to reduce the potential of flooding in the future. These measures included four flood detention structures, a series of diversionary works and hard armouring (concrete and rock) of the inlets to the detention structures and specific areas within the drainage systems. The detention basins were designed to decant through a pipe located in the bottom of the basin that retained the large amount of water produced and slowly released the flows thereby reducing the impact of the peak flows.
Following the Soil Conservation Service design of the works the Parkes Shire Council engaged the Soil Conservation Service through its plant hire and consultancy sections to implement the works.
Pioneer Street detention basin with concrete flume inlet and pipe outlet
Detention basin below Parkes cemetery with rock armoured inlet and pipe outlet
The detention basins have withstood a number of high intensity storm events following their construction and the town below the structures have not received any flood damage.
Kent Boyd, Director of Infrastructure
T: 02 6861 2333
Col Adams, Area Manager Central
T: 02 6391 4317