CSS

A water focused engineering consultancy and software developer.

[CSS @CatSimSol]

Join for Storm Injector online training in October 2026. Our Fundamentals course (https://t.co/44I5KXBqzH) is on the 21st October, followed by our Advanced course (https://t.co/DEbGAtrH7C) on the 28th October.

For more info: https://t.co/OmCCiOiLG0

[CSS @CatSimSol]

🎄 What do CSS engineers want for Christmas?🎄

How about a new modelling PC packed with 6 GPUs, 512 GB of DDR5 RAM, and a 32-core Threadripper Pro.

While we’re putting our feet up and enjoying a well-earned break, this little powerhouse will be busy crunching flood models. 💻

[CSS @CatSimSol]

We’re seeking motivated Civil and Environmental Engineering students and recent graduates with an interest in hydrology, flood engineering and modelling to join our team.

📅 Applications close at 5pm (AEDT) on 20 November 2025
⭐ For more information : https://t.co/XXDzedgO9a

[CSS @CatSimSol]

✨ This year, we’re proud to celebrate 20 years of Catchment Simulation Solutions.✨

Our journey has been shaped by the trust of our clients, the collaboration of our partners, and the dedication of our team. We’re deeply grateful to everyone who has contributed to our work

[CSS @CatSimSol]

The ARR Data Hub has now been updated with the new Climate Change Factors consistent with Chapter 6 in ARR v4.2.

Today, we have also released Storm Injector 1.4.0 to take advantage of this new data and allow these scenarios to be easily modelled.

[CSS @CatSimSol]

View our latest career opportunity: https://t.co/kxI49WL1NC

[CSS @CatSimSol]

Storm Injector (v1.3.5) now supports NZ HIRDS design storm modelling.
https://t.co/5vu3PcVNoe

[CSS @CatSimSol]

We are happy to announce that Storm Injector 1.3.0 now supports the widely used and freely available HEC-HMS rainfall runoff model from the U.S. Army Corps of Engineers.

[CSS @CatSimSol]

Storm Injector 1.2.7 is now available and includes our new spatial mapping options. This provides for automated thematic mapping of results over a spatial display of the project, either with a nodal link arrangement or a Shapefile.

[CSS @CatSimSol]

Storm Injector 1.1.8 has been released and includes support for At-Site IFD analysis. This is becoming an important component of hydrologic modelling and is often a standard requirement for NSW flood studies, particularly in coastal areas.

[CSS @CatSimSol]

Welcoming rural floodplain management specialist Tim Morrison to the CSS team.

[CSS @CatSimSol]

CSS happy to be awarded the Raglan Flood Investigation and Pambula River, Pambula Lake, Yowaka River Flood Study.

[CSS @CatSimSol]

Storm Injector now supports spatially varying IFD and ARR 1987. Find out more at: https://t.co/KVkXea3FB9

[CSS @CatSimSol]

CSS engaged to prepare the Peachtree and Lower Surveyors Creeks Flood Study for Penrith City Council.

[CSS @CatSimSol]

We are delighted to receive our first project from Wollongong City Council, the Review of Collins Creek Flood Study.

[CSS @CatSimSol]

Fairfield City Council have engaged CSS for the Cabravale Overland Flood Study and Smithfield West Floodplain Risk Management Study.

[CSS @CatSimSol]

We're happy to announce that we'll be working with Tweed Shire Council on the Murwillumbah CBD Levee Drainage Study.

[CSS @CatSimSol]

CSS engaged to complete Wyong River Floodplain Risk Management Study

[CSS @CatSimSol]

We are pleased to be working with Penrith City Council on the College, Orth and Werrington Creeks Flood Study. https://t.co/yIXtif6TiZ

[CSS @CatSimSol]

CSS awarded Wallarah Creek Flood Study (Wyong Shire Council) and Nattai Ponds Flood Study (Wingecarribee Council)