Civil-Grade Insurance for Extreme Weather

Note: This is an Add-On product designed to perfectly complement your Acreage or Broadacre Masterplan.

When managing large-scale catchments and heavy earthworks, guessing is not an option. A poorly calculated dam spillway or an undersized drainage system can result in catastrophic wall blowouts, severe topsoil erosion, and massive financial liability during extreme rain events.

The 1-in-100yr Hydrological Engineering add-on provides civil-grade, mathematical certainty for your permaculture masterplan. Utilizing advanced GIS data and environmental engineering formulas, we model exactly how your property will handle a 1-in-100-year storm event (a massive, severe rainfall event with a 1% probability of occurring in any given year).

What’s Included in this Add-On?

• Peak Flow Catchment Calculations: We mathematically calculate the maximum volume and velocity of water that will enter your property from the macro-catchment above you during extreme weather events.

• Precision Dam Spillway Calculations: The most common reason dams fail is undersized spillways. We calculate the exact width, depth, and level requirements for your dam spillways to safely pass a 1-in-100-year flood without compromising the dam wall.

• Flood Mitigation & Overflow Routing: We map the safest, most stable routes for heavy overflow water to travel through your property, ensuring it safely bypasses your home, shedding, and delicate agricultural zones.

• Culvert & Pipe Sizing: If your access roads cross natural watercourses, we provide the engineering data for the exact size of the pipes or culverts needed to prevent your roads from washing out during heavy wet seasons.

The Deliverable:

You will receive an Advanced Hydrological Data Report & Overlay integrated into your main property Masterplan.

This data provides the exact specifications you need to hand to your heavy machinery operator. Instead of an excavator driver guessing how wide to make your overflow, they will have engineered, mathematical dimensions to work from.

Engineer Your Peace of Mind: Don't build heavy infrastructure on assumptions. Add this hydrological engineering package to your cart to ensure your earthworks and water systems are built to survive the extremes.