AS 7637 Hydrology and Hydraulics

The closing date for comments – Monday 28 April 2025

The AS 7637 Hydrology and Hydraulics standard is now open for public consultation.

How this product helps the rail industry 

Flood damage to railway infrastructure is a significant safety risk and an impediment to growing freight volumes on rail. Ensuring this Standard promotes best practice in planning/design/build regarding hydrology and hydraulics is critical to driving better safety outcomes and rail network resilience.

The purpose of AS 7637 is to specify the requirements for adequate planning and design in an environment of increasingly extreme weather events, and the development of a Flood Management Plan and Emergency Response Plan to mitigate flood risk to railway infrastructure, rail traffic and personnel.

About

Through the review process, this Standard has undergone extensive restructuring, removing a lot of industry known information and sharpening the focus on design requirements and inspection and monitoring. The flood risk assessment considers tolerability of the existing flood risk, location of existing flood risks, future flood risks, cultural and social impact.

How to contribute

AS 7637 Hydrology and Hydraulics will be available for public consultation for 60 days. All interested parties are encouraged to provide comments during this time.

It is available to download here.

To make comments on the draft, please use the commenting tools in Adobe Acrobat or Acrobat Reader to comment in-line with the text.

Please return your PDF with comments to jmatheson@rissb.com.au by Monday 28 April 2025.

As the rail industry’s accredited Standards Development Organisation (SDO), RISSB continues to collaborate with government, rail operators and industry leaders to improve the efficiency and harmonisation of the Australia and New Zealand’s rail network, ensuring national interoperability, safety and sustainability into the future.