Otago Polytechnic
Clearwater Civil IMG 2346 cropped v2

Washbay design

Where do you go to clean large dirty vehicles?

Clearwater Civil Ltd is an Otago company which carries out earthworks and infrastructure projects such as roading, drainlaying, commissions of storm water, wastewater and water reticulation, and underground power, gas and telecommunication infrastructure. They have a large fleet of trucks and other heavy vehicles at their Green Island base of operations.

Civil Engineering student Jake Samson identified that Clearwater Civil needed a wash bay and offered to design one for them as his research project. His final design is for an unroofed wash bay located at the back of the Green Island yard. The slope and the raised bund ensure that water used in washing down vehicles will be captured in the waste water sump. A water blaster capable of pumping 900 litres per hour would take about 15 minutes to clean each vehicle. At an average of eight vehicles per day, the volume of waste water discharged would be well within the maximum daily discharge.

Clearwater Civil was receptive to Jake's proposal and he is hopeful that the wash bay will be constructed during 2020. 

April 2020