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Scientific Investigations Report 2008–5093

U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2008–5093

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Table 2. Median diameter and particle-size classification of streambed samples, Coeur d’Alene River, Idaho.

[Particle size classification shown in table 3. Location of sample in channel: LB, sample collected near left bank; LMID, sample collected left of center of channel; RMID, sample collected right of center of channel; MID, sample collected near center of channel RB, sample collected near right bank. Abbreviations: d50, median diameter of streambed samples; mm, millimeter; –, unknown]

Site River
mile		 Sample
date		 Sample
depth (ft)		 d50
(mm)		 Particle size
classification		 Location of
sample in
channel		 Sampler
Braided reach
PC-NFCDA 168.1 8-20-01 0 53.7 Very coarse gravel – University of Idaho1
SF-CDA .3 8-21-01 0 18.8 Coarse gravel – University of Idaho1
CDA-PC2 167.0 8-22-01 0 41.7 Very coarse gravel – University of Idaho1
CDA-PC4 166.3 8-23-01 0 37.4 Very coarse gravel – University of Idaho1
CDA-PC6 164.8 8-24-01 0 22.8 Coarse gravel – University of Idaho1
Meander reach
97CAT01 159.6 10-07-97 0–2.2 0.34 Medium sand LB URS Greiner2
97CAT02 159.6 12-07-97 0–2.8 .21 Fine sand LMID URS Greiner2
97CAT03 159.6 12-08-97 0–2.4 .18 Fine sand RMID URS Greiner2
97CAT04 159.6 12-08-97 0–2.0 .19 Fine sand RB URS Greiner2
97MED01 144.7 12-11-97 0–2.7 .12 Very fine sand LB URS Greiner2
97MED02 144.7 12-10-97 0–2.8 .1 Very fine sand LMID URS Greiner2
97MED03 144.7 12-10-97 0–2.6 .14 Very fine sand RMID URS Greiner2
97MED04 144.7 12-11-97 0–1.9 .11 Very fine sand RB URS Greiner2
97SWN01 139.5 12-12-97 0–3.0 .038 Course silt LB URS Greiner2
97SWN02 139.5 12-12-97 0–4.7 .094 Very fine sand LMID URS Greiner2
97SWN03 139.5 12-12-97 0–1.9 .054 Course silt RMID URS Greiner2
97SWN04 139.5 12-13-97 0–2.7 .14 Fine sand RB URS Greiner2
97HAR01 132.1 12-14-97 0–5.4 .025 Medium silt LB URS Greiner2
97HAR02 132.1 12-14-97 0–3.3 .029 Medium silt LMID URS Greiner2
97HAR03 132.1 12-14-97 0–2.3 .016 Medium silt RMID URS Greiner2
97HAR04 132.1 12-19-97 0–3.9 .069 Very fine sand RB URS Greiner2
Dudley reach (within meander reach)
D1 157.067 05-04-05 0 0.41 Medium sand MID U.S. Geological Survey
D2 156.686 05-05-05 0 .59 Coarse sand MID U.S. Geological Survey
D3 156.213 05-06-05 0 .37 Medium sand MID U.S. Geological Survey
D4 155.739 05-07-05 0 .31 Medium sand MID U.S. Geological Survey

1Borden and others (2004).

2URS Greiner, Inc., and CH2M-Hill (2001), table A-5.

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