Mill Brook - Basin 13

NOTE: Enter the Confinement Evaluated first, then the Scores, then the rest.

Rapid Geomorphic Assessment
	Confinement Evaluated	Confined
	Geomorphic Assessment Scores
		Score	STD (7.5)	Historic (7.5)
7.1	Channel Degradation	13	None	No
7.2	Channel Aggradation	6	None	No
7.3	Widening Channel	10	None	No
7.4	Change in Planform	12	None	No
	Total Score	41
	Condition Rating	0.51
7.5	Channel Evolution Model	F
	Channel Evolution Stage	II
7.6	Geomorphic Stream Condition	Fair
7.7	Stream Sensitivity	High
7.5	Channel Adjustment Processes Narrative
	This reach scoured down during T.S. Irene in the upper reach and widened in the lower reach where multiple grade controls limited incision. Floodplain access is very limited throughout the reach and large mass failures were observed in the areas of widening. The upper half of the reach is naturally confined and is incised. A small ~5ft wide bench is the only accessible floodplain except during the largest events. Heavy bank scour was observed through most of the reach but widening is limited by stony soils, ledge, and dense roots. We assessed the reach as stage II due to the very high primary floodplain and the low potential for widening or planform adjustment.