My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
GENERAL30527
DRMS
>
Back File Migration
>
General Documents
>
GENERAL30527
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
8/24/2016 7:48:03 PM
Creation date
11/23/2007 6:44:45 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M1976020
IBM Index Class Name
General Documents
Doc Date
8/14/1996
Doc Name
MEMO-MEETING WITH GEOF SCHLITTGEN AND RICH MAYO ON 8-13-96
From
DMG
To
FILE
Media Type
D
Archive
No
There are no annotations on this page.
Document management portal powered by Laserfiche WebLink 9 © 1998-2015
Laserfiche.
All rights reserved.
/
34
PDF
Print
Pages to print
Enter page numbers and/or page ranges separated by commas. For example, 1,3,5-12.
After downloading, print the document using a PDF reader (e.g. Adobe Reader).
View images
View plain text
<br />1. Increased bank erosion <br />2. Increase sedimentation <br />3. Land loss <br />4. Fish habitat loss <br />5. Loss of ripariatt and floodplain function (due to abandonn!evtt of [hc floodFdain) <br />6. Head-cuts which have altered the river profile outside of permit areas <br />7. Lowering of the water table and drying-up stream adjacent lands <br />8. Increased width'depth ratio which: <br />a. Decreases flood capacity <br />b. Increases stress ir, the tear-bank-region. adding to accelerated ban;: ~>rosion <br />c. Decreases over-winter and late summer/fall fish tsbitat and in-streari cover <br />d. Increases temperature extremes (winter and avnnter) <br />e. Increases channel slope <br />f. C?ecresses sinuosity, and meander width ratio (belt width'bankfull width) <br />g. Increases meander length end radius of curvature which does not allow the <br />stream to dissipate is own energy <br />The overall result of these chamtei zdjustmena tl~oug'r,out t:~e entire affected r_ach i5 of <br />channel instability end severely degraded river health and funciion The dir.?ensions avid pattern <br />of the stable C4 stream type (see attached paper on stream classification for ref=rence;, should <br />have the following values as detemtined from thz I.;SC,S gage data and from a:.ri~l phi4o <br />interpretation of less-impaced (non-graveled)reaches. <br />bttnkfull discharge (I.5 }'ear lCIL!m perlnd): 3,400 a60~e Hem?Osa Creek. 4,000 cfs below <br />btvilaitll width 120 feet - (Current condition: 2~t)-3i0 feet) <br />mean bankfull depth: 4feet - (current condition G.9.1 5) <br />width~depth ratio: 30 - (Current condition 167- 389, v,•hich varies greatl}•) <br />meander length :1400 feet - (Current condition 2800-3500 feet) <br />radius of can azure: 324 feet - (I 500-2400 feet) <br />meander width ratio: ?-8 - (~'urcent conditior. I-l.~) <br />
The URL can be used to link to this page
Your browser does not support the video tag.