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Floodplain Mannings - Photographic examples

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Hi All,


I’m searching around for references on Manning’s n guidance for floodplains (excluding the open channel) based on photographic examples. A couple of references I have with example photos (both online) are:

·         Brisbane City Council Natural Channel Design Guidelines (Nov 2003 – Appendix C Mannings n)

·         Guide for Selecting Manning's Roughness Coefficients for Natural Channels and Flood Plains (reproduced over the past 40 years by a number of US agencies incl. Geological Survey and Department of Transportation)

I wanted to ask if anyone has come across other guidelines based on organised photos?


Many thanks



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