simultaneously. The Aquatic Biology team also collected water quality data. 

 Simultaneous effort of field teams was considered advantageous during the 

 first field season to insure coordination of work where necessary. In ad- 

 dition, simultaneous work permitted on-site discussion of methodology 

 changes by all disciplines, thus further insuring coordination and co- 

 operation. During subsequent field seasons, some of the sites were visited 

 by individual field teams, but all teams visited the sites during the same 

 summer. These individual visits allowed each team to visit sites during peak 

 events for parameters associated with their discipline. Data and sample 

 collection areas were flagged to facilitate collection of data at the same 

 sites during subsequent visits by either the same or different teams. In 

 addition, the hydrology and hydraulics and terrestrial teams placed semi- 

 permanent posts at each site from which to initiate surveys for future 

 studies. 



The following section includes a review of the field and laboratory 

 programs conducted during the field effort. Programs are described only 

 for River Hydrology and Hydraulics, Water Quality, Aquatic Biology, and 

 Terrestrial Ecology because these were the only disciplines for which data 

 were specifically collected. Geotechnical Engineering and Aesthetics relied 

 completely on field information collected by other groups. 



River Hydrology and Hydraulics 



Introduction. Emphasis of the field program was on describing local 

 fluvial geomorphic processes, obtaining evidence of past flood histories, 

 measuring river hydraulic parameters, investigating sediment transport 

 properties of the channels, describing river processes, and investigating 

 specific effects of gravel removal on these factors. Photographs were taken 

 for documentation of significant features. Hydraulic and hydrological data 

 collection were coordinated with the water quality, aquatic biology, and 

 terrestrial ecology studies. 



Hydrological and geomorpho I og i ca I literature pertaining to each site 

 and its drainage basin, e.g., hydrological records, surficial geology. 



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