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velocity measurements. Recheck and record the reading of the <br />permanent staff gage after the last transect is measured. <br />8. Measure distances between transects at water's edge along both <br />banks. <br />9. Prepare a reference map of the study site, noting unique <br />situations. <br />10. Review field notes for completeness and inventory equipment. <br />Substrate <br />In addition to the hydraulic measurements substrate type at each cell <br />is recorded. A two digit code and standard classification criteria are <br />used to visually evaluate substrate conditions at each transect (Table <br />3.1. Generally, each transect. is waded during low flow conditions to <br />record both the predominant and surrounding particle size. If the <br />transect is too deep to wade, the substrate types are estimated by <br />prodding a paddle into the strearibed from the boat. <br />The two digit substrate index at any given vertical represents the <br />general characteristics of the streambed materials within an imaginary <br />cell extending half the distance to each adjacent vertical. It is assumed <br />that the dominant and subdominant substrate types within the cells remain <br />constant throughout the flow regime. <br />Table 3. Substrate Coding System used to describe substrate types. <br />Code Substrate Description <br />1 Clay <br />2 Silt <br />3 Sand <br />4 Gravel <br />5 Rubble <br />6 Boulder <br />7 Bedrock <br />8 ~ Other <br />-- _ - <br />9 <br />