USGS Scientific Investigations Report 2012–5017  - Geomorphic Setting, Aquatic Habitat, and Water-Quality Conditions of the Molalla River, Oregon, 2009

Scientific Investigations Report 2012–5017 

Geomorphic Setting, Aquatic Habitat, and Water-Quality Conditions of the Molalla River, Oregon, 2009–10 

Table 6. Residual pool depth summary statistics by geomorphic reach in the Molalla River, Oregon, for residual pools greater than 1.0 meter. 

[Abbreviations: m, meter; n/a, not applicable] 

Geomorphic reach	Average residual pool depth (m)	Maximum residual pool depth (m)	Total pool count per geomorphic reach	Average pool frequency per river kilometer
GR1	1.8	4.0	10	3.4
GR2	2.0	6.3	17	2.3
GR3	2.0	4.3	21	2.6
GR4	2.0	3.6	29	2.0
GR5	2.1	4.2	10	1.6
GR6	n/a	n/a	n/a	n/a

First posted February 29, 2012

Animation - Historical geomorphic changes in active channel (geomorphic reach 3)

For additional information contact:
Director, Oregon Water Science Center
U.S. Geological Survey
2130 SW 5th Avenue
Portland, Oregon 97201
http://or.water.usgs.gov

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