Guide to the Design of Drainage Basins

Document No:  D10#133658
Revision:  3
Date amended:  28-Jul-2015

The information below is intended to reflect the preferred practice of Main Roads Western Australia ("Main Roads"). Main Roads reserves the right to update this information at any time without notice. If you have any questions or comments please contact Zahirul Baten by e-mail or on (08) 9323 4160.

To the extent permitted by law, Main Roads, its employees, agents, authors and contributors are not liable for any loss resulting from any action taken or reliance made by you on the information herein displayed.


Revision Register

Description of
1 All Guideline developed. 23-Jan-2003
1A 1,11.1 & 11.2 Editorial changes to 1 & 11.1.
Section 11.2 removed.
1B Header Guideline Contact amended. 06-Oct-2006
1C Header Guideline Contact amended. 18-Oct-2007
1D Heading Guideline Heading amended. 08-Jan-2008
1E 11.1 Reference to Basin Type removed. 14-Nov-2009
1F 2.3 & 3.4 Version of software updated 16-Apr-2010
1G Header TRIM Document number added. 17-Jun-2010
1H Header TRIM Document number amended. 20-Jan-2011
1I 2.4 Correction of formula. 02-Jun-2011
2 Header Contact updated. 09-Dec-2011
​3​All​Document Deleted.​28-Jul-2015


Document deleted. Refer to Main Roads Supplement to Austroads Part 5A and Austroads Guide to Road Design (GRD) Part 5A.