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Last modified
7/14/2009 5:02:33 PM
Creation date
5/20/2009 3:30:26 PM
Metadata
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Template:
UCREFRP
UCREFRP Catalog Number
8110
Author
FLO Engineering, I.
Title
Green River Flooded Bottomlands Investigation Ouray Wildlife Refuge and Canyonlands National Park, Utah-Final Report.
USFW Year
1996.
USFW - Doc Type
Breckenridge, CO.
Copyright Material
NO
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<br />e <br /> <br />e <br /> <br />e <br /> <br />Table 3a. Ouray Reach Cross Sections - Scour and Fill Cycle <br /> <br />Cross Section Net Change in <br />Number1 Bed Elevation Comments <br />LEB 18 Net fill. Thalweg along right bank was filled 7 ft. Deeper thalweg along left bank (3 <br /> ft). <br />LEB 19 Net fill. Scour of 1 to 3 ft on left half of channel. Up to 5 ft of deposition on right <br /> half of channel. <br />LEB 20 Net fill. Sand bar development (about 220 ft) along right bank (2 to 3 ft of <br /> deposition). Slight scour in center of channel. Fill along left bank. <br />LEB 21 No net change. Normal bed variation. Slight scour on right half of channel. <br />LEB 22a2 Net fill. 1 ft of fill on left half of channel. 2 to 3 ft of fill on right half of channel. <br />LEB 22b2 Slight net scour. Uniform cross section. Net fill during peak. <br />LEB 23 No net change. Redistribution of sediment in the channel. Left bank thalweg development <br /> with 6 ft of scour. 6 ft. of fill in center channel. <br />LEB 23.5 Net scour. Sand removed from center of the channel (2 to 3 ft). Slight fill on left half <br /> of channel. <br />LEB 24 Net scour. Thalweg deepened by 13 ft. Continued to scour after peak. <br />LEB 25 No net change. 2 to 3 ft of scour in left half of channel. Sand bar development along right <br /> bank, 7 ft of deposit extending 120 ft into channel. <br />LEB 26a2 Slight net fill. Sand bar was scoured and filled about 4 ft during course of peak flow. <br />LEB 26b2 No net change. Uniform channel not appreciably effected by high flow. <br />LEB 27 Net fill. Right two-thirds of channel filled with 2 to 7 ft of deposit. Deep thalweg <br /> development since peak flow with 14 ft of total bed elevation change <br /> (scour). Some left overbank deposition. <br />JOB 28 . Slight net scour. Right two-thirds of channel scoured 1 to 2 feet. Left bank thalweg filled (4 <br /> feet). <br />JOB 29 Net fill. Left half of channel filled 4 ft. Some scour in right half of channel. <br />JOB 30 Net fill. Left channel filled significantly, up to 8 ft of deposition. Right channel <br /> experienced about 4 ft of scour. Even more deposition during peak flow. <br />JOB 31 Net fill. Left half of channel scoured 4 ft. Right half of channel filled with deposits <br /> up to lOft. Sand bar development where thalweg used to be. <br />JOB 32 Net fill. Left half of channel filled with an average of 2 ft of deposition. Right half <br /> had some scour (2 ft) and fill (1 ft). <br /> <br />1 Cross section abbreviations are as follows: OCW - Old Charley Wash, SHB - Shepherds Bottom, WYB - Wyasket Bottom, LEB. Leota <br />Bottom, JOB - Johnson Bottom. <br />2 Cross section separated by an island. <br />3 Cross section is not a straight line, but is perpendicular to the two channels. <br /> <br />24 <br />
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