SECTION N: CHOKED CHANNEL


If 33% or more of the total channel area is choked with vegetation, causing significant impediment to flow, indicate by putting a 3 in the ‘Yes’ box. If not, 3 the ‘No’ box. One of the two boxes must be ticked.


The extent of vegetation will depend to some degree on seasonal influences, but choked channels can present a barrier to fish migration, or increase flood risk.