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Drainage Upgrade - How Road and Lacey Drive Aldinga Beach

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Work is commencing soon.

We are planning the construction of a new drainage pipeline along How Road and Lacey Drive, Aldinga Beach.

The work is necessary to support the state school on Quinliven Road. on Quinliven Road. The project has multiple stakeholders and funding sources, including the Department for Education and Department for Infrastructure and Transport (DIT). DIT are funding necessary road network upgrades and stormwater drainage works required to accommodate the new school.

The new drainage pipeline will allow stormwater runoff upstream to be diverted away from How Road and into the existing wetland at Pridham Boulevard. The outflow to the Hart Road wetland is then utilised to top up groundwater. The works will also intercept high flows from How Road, with normal flows continuing down the grassed channel. Drainage from Lacey Drive will remain in a separate pipeline.

For further information about Department of Infrastructure and Transport projects, please contact the Department at DIT.CommunityRelations@sa.gov.au or 1300 794 880.

View the Drainage upgrade design.

The drainage upgrade is expected to be undertaken in the 2020-21 financial year once construction funding has been approved and will be completed by December 2021 in time for the opening of the new school in early 2022.

The drainage upgrade will consist of:

  • installation of a new drainage pipe connection in How Road to the school development
  • work at the How Road/lacey Drive intersection to divert high flows to the Lacey Drive pipeline
  • installation of a new drainage pipe along Lacey Drive to the existing wetland and detention basin adjacent to Pridham Boulevard.

Work will be done in two stages:

Stage 1 is extending the already existing stormwater system to accommodate the new school stormwater outlet.

This work will occur on the eastern verge of How Road with work also commencing within the Renewal SA land. This allows us to keep both lanes running each way on How Road, although it will be at a reduced speed of 25km/h..

Stage 2 will be work further down How Road. There is a 100m long swale we will be constructing approaching Lacy Drive, this will then run into a new stormwater system which will cross How Road then head west down Lacey in the centre of the road where it will continue to the stormwater catchment ponds along Aldinga Beach Road. This pipe run is approx. 600m and there will be traffic restrictions in place.

Once design is complete for Stage 2, the work will be tendered out. Construction for Stage 2 is anticipated for later this year.

How will the new system work?

The new school will provide on-site detention which restricts storm water runoff to the existing undeveloped flows and discharges this to How Road. The new pipeline system is designed to intercept high storm water flows in How road and divert these through Lacey Drive to the existing wetland. This reduces the flow in How road south of Lacey Drive and will assist in alleviating flooding downstream. Low flows will continue to flow south in the existing swale in How Road.

The project is scheduled to commence in 2021 and will be completed by December 2021.

Work is commencing soon.

We are planning the construction of a new drainage pipeline along How Road and Lacey Drive, Aldinga Beach.

The work is necessary to support the state school on Quinliven Road. on Quinliven Road. The project has multiple stakeholders and funding sources, including the Department for Education and Department for Infrastructure and Transport (DIT). DIT are funding necessary road network upgrades and stormwater drainage works required to accommodate the new school.

The new drainage pipeline will allow stormwater runoff upstream to be diverted away from How Road and into the existing wetland at Pridham Boulevard. The outflow to the Hart Road wetland is then utilised to top up groundwater. The works will also intercept high flows from How Road, with normal flows continuing down the grassed channel. Drainage from Lacey Drive will remain in a separate pipeline.

For further information about Department of Infrastructure and Transport projects, please contact the Department at DIT.CommunityRelations@sa.gov.au or 1300 794 880.

View the Drainage upgrade design.

The drainage upgrade is expected to be undertaken in the 2020-21 financial year once construction funding has been approved and will be completed by December 2021 in time for the opening of the new school in early 2022.

The drainage upgrade will consist of:

  • installation of a new drainage pipe connection in How Road to the school development
  • work at the How Road/lacey Drive intersection to divert high flows to the Lacey Drive pipeline
  • installation of a new drainage pipe along Lacey Drive to the existing wetland and detention basin adjacent to Pridham Boulevard.

Work will be done in two stages:

Stage 1 is extending the already existing stormwater system to accommodate the new school stormwater outlet.

This work will occur on the eastern verge of How Road with work also commencing within the Renewal SA land. This allows us to keep both lanes running each way on How Road, although it will be at a reduced speed of 25km/h..

Stage 2 will be work further down How Road. There is a 100m long swale we will be constructing approaching Lacy Drive, this will then run into a new stormwater system which will cross How Road then head west down Lacey in the centre of the road where it will continue to the stormwater catchment ponds along Aldinga Beach Road. This pipe run is approx. 600m and there will be traffic restrictions in place.

Once design is complete for Stage 2, the work will be tendered out. Construction for Stage 2 is anticipated for later this year.

How will the new system work?

The new school will provide on-site detention which restricts storm water runoff to the existing undeveloped flows and discharges this to How Road. The new pipeline system is designed to intercept high storm water flows in How road and divert these through Lacey Drive to the existing wetland. This reduces the flow in How road south of Lacey Drive and will assist in alleviating flooding downstream. Low flows will continue to flow south in the existing swale in How Road.

The project is scheduled to commence in 2021 and will be completed by December 2021.

We'll endevour to answer your query within 48 hours.

Please note that this site is monitored Monday to Friday during business hours.

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    Will this work require How Road to be closed off at any time? There are businesses which have their only entrances on How Road? Additionally, will this work be compromised by the future redevelopment of the 90 hectare block of land between How Road and South Road, information for which has been distributed to ratepayers this week. Thank you.

    VB asked 24 days ago

    Thank you for your question.

    How Road is not planned to completely closed. The majority of the work will be done on the verge and speed restrictions will apply. However, there will be stop-slow and one way traffic at a few limited times throughout the project but the road will remain open to traffic throughout the construction.

    This work will not be compromised by the future development in the Renewal SA land.

    We trust this answers your query.