How can Overland Flow affect your build?

Overland flow can affect your build. Come with us as we show you our client’s build site as we reassess for overland flow impacts. The client used Storm previously as their intended garage is in an overland flow area.  We are back because they have decided to extend, and overland flow needs to be assessed again. 

In the next few minutes, we’ll walk you through:

  • Where the overland flow path runs on this site, and

  • What the local city council’s regulations require.

TRANSCRIPT: Hi Team, Steve here from Storm Water Consulting. Today I’m on site in Stafford, looking at a new project that we’re doing.  Interesting site this one, we actually completed an overland flow assessment for this project about 3 years ago.  With that project we were looking at building a new garage and that has since been completed, come on let’s go take a look.

The next part of the project is for the dwelling to be extended. The property is still in the Overland Flow Flood Planning area so that means that we need to lodge a development application to make sure that we comply with council’s flood overlay code.

So the overland flow path actually runs through the rear of the property. When we designed the garage we made sure that we weren’t going to block the overland flow path, and cause worsening to any of the neighbours.  What we want to do now is actually extend the dwelling further out. The dwelling is going to extend all the way back to,  effectively about a metre before the garage, so about here. So given that the property is still within council’s overland flow flood planning area, we need to make sure that we’re not going to cause an adverse impact to neighbouring properties by blocking off that overland flow.

So I’m out here today to verify the results of my previous model, look at any modifications that I need to make for the current model and assess what we’re going to build to make sure that we’re not going to cause any adverse impacts to neighbouring properties by blocking the overland flow path; and that we set floor levels high enough so we don’t get flooded.

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