Upper Missisquoi

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Record: 61 Segment ID: R45S3.1S1.01- Stream Name: Ace Brook

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Channel Bed and Planform Changes
5.1	Bar Types
	Mid Bar	2
	Point Bar	0
	Side Bar	13
	Diagonal Bar	0
	Delta Bar	0
	Island Bar	0
5.2	Migration Features
	Flood Chutes	3
	Neck Cutoffs	0
	Channel Avulsions	0
	Braiding	1
5.3	Steep Riffles and Head Cuts
	Steep Riffles	0
	Head Cuts	0
	Tributary Rejuvenation	No
5.4	Stream Ford or Animal Crossing	No
5.5	Channel Alterations
	Straightening	None
	Straightening Length	0 ft.
	Dredging	None

Comments:
Sections of this segment are braided with flow entering Unnamed Trib 3 to the Missisquoi River via flood chutes during higher flows. Alluvial fan indexed in this segment due to abrupt change in slope and sediment deposits resulting in braiding. Alluvial fan does not have a typical fan shaped wedge. Valley width measured from valley wall to valley wall and not from valley wall to center of drainage line between Ace Brook and Unnamed trib 3. 2015 ASSESSMENT NOTES: A channel avulsion, which was likely caused by the buildup of large woody debris, occurred within this segment during a May 2012 high flow event. This avulsion caused the flow from Ace Brook to enter the Unnamed Tributary (3) within segment R45S3.02-C. Segment C on reach one of Ace Brook was dry during the Phase 2 assessment in 2015. A cross section was measured within this segment in 2011 but could not be repeated in 2015 due to the changes in hydrology at this location.