| Abstract: | During the period 1972-79, bedload in the Clearwater River in the vicinity of Lewiston, Idaho, ranged from about 50,000 tons per year in 1972 and 1974 to about 1,000 tons per year in the drought years of 1973 and 1977. Suspended-sediment load at the same location ranged from about 1,000,000 tons per year to about 50,000 tons per year for the same respective years. In the Snake River, bedload ranged from about 200,000 tons per year for 1972 and 1974 to about 10,000 tons per year in 1973; bedload was too minimal for determination in 1977. Suspended-sediment load ranged from about 5,000,000 tons per year in 1974 to about 50 ,000 tons in 1977. Bedload thus ranged from about 2 to 10% of suspended load and averaged about 5%. For either river, bedload particle size was bimodal. Modes were in the medium- to course-sand range and in the very coarse-gravel range. Suspended-sediment particle size was generally finer than sand. Thus, particles constituting bedload were distinctively larger in size than particles constituting suspended load. (USGS) |
| Genre: | USGS Numbered Series |
| ProdID: | 23505 |
| Citation Author: | Jones, Michael L.; Seitz, Harold R. |
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| Citation Edition: | WRI/OFR |
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| Citation Language: | ENGLISH |
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| Citation Phsyical Description: | v, 186 p. ill., maps ;27 cm. |
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| Citation Publisher: | U.S. Geological Survey, Water Resources Division, |
| Citation Series: | Open-File Report |
| Citation Series Code: | OFR |
| Citation Series Number: | 80-690 |
| Citation Search Results Text: | Sediment transport in the Snake and Clearwater rivers in the vicinity of Lewiston, Idaho; 1980; OFR; 80-690; Jones, Michael L.; Seitz, Harold R. |
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| Citation Year: | 1980 |
| Type: | citation/reference |
| Text: | Sediment transport in the Snake and Clearwater rivers in the vicinity of Lewiston, Idaho; 1980; OFR; 80-690; Jones, Michael L.; Seitz, Harold R. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/usgs_thumb.jpg |
| Date Other: | Sat, 1 Jan 1994 00:00 -0600 |
| Publisher: | U.S. Geological Survey, Water Resources Division, |
