My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
WSPC04920
CWCB
>
Water Supply Protection
>
Backfile
>
18000-18999
>
WSPC04920
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
1/26/2010 11:41:30 AM
Creation date
10/9/2006 4:54:52 AM
Metadata
Fields
Template:
Water Supply Protection
File Number
8240.200.10.H
Description
Colorado River Threatened-Endangered - UCRBRIP - Program Organization-Mission - Stocking
State
CO
Basin
Colorado Mainstem
Water Division
5
Date
9/5/1996
Author
DOI-FWS
Title
Procedures for Stocking Non-Native Fish Species in the Upper Colorado River Basin - Draft - 09-05-96
Water Supply Pro - Doc Type
Report/Study
There are no annotations on this page.
Document management portal powered by Laserfiche WebLink 9 © 1998-2015
Laserfiche.
All rights reserved.
/
31
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).
Show annotations
View images
View plain text
<br /> <br />19 <br /> <br /> <br />~D2723 <br /> <br />APPENDIX B <br />TERMS OR ACRONYMS USED IN THESE PROCEDURES <br /> <br />Critical habitat: River reaches formally designated as critical in accordance <br />with the Endangered Species Act of 1973. as amended. Includes portions <br />of the Colorado, Green. Duchesne. White. Yampa. and Gunnison Rivers and <br />portions of the associated 100-year floodplains that contain areas <br />essential to recovery of the endangered fishes. <br /> <br />Direct Connection: Waters that flow directly into critical habitat. This <br />does not include waters above reservoirs where escapement has been <br />addressed in accordance with these Procedures. <br /> <br />ESA: Acronym for Endangered Species Act. <br /> <br />FEMA specifications: Dikes built to isolate ponds from flooding must have a <br />minimum of three feet of freeboard above the baseflood elevation. They <br />must have a minimum of one additional foot of freeboard if the dike is <br />within 100 feet of an area where the water is constricted. The <br />upstream end of the dike must have a minimum of an additional one-half <br />foot elevation of dike. The dike must be designed and constructed in <br />accordance with recognized and accepted engineering methodologies. The <br />dike must be "watertight, substantially impermeable to the passage of <br />water. and be capable of withstanding hydrodynamic and hydrostatic <br />forces, and the effects of buoyancy." For existing dikes to qualify. <br />they must be certified via a written report by a qualified engineer. <br />The report will consider depth of flooding. floodplain elevation. <br />duration of flooding. embankment geometry, embankment and foundation <br />materials. embankment compaction. penetrations, other design factors <br />affecting penetration, channel constriction. and any other factors that <br />may effect the ability of the dike to withstand flood events. <br /> <br />Ordinary Hiqh Water Line (OHWL): This is the water level which represents the <br />. water surface elevation during a normal (annual) high water event. The <br />physical evidence denoting the OHWL is the point where perennial <br />hydrophytic plant life converges with bare substrate (rock, gravel, <br />sand, fines) or with substrate interspersed with annual vegetation. <br /> <br />5 feet above ordinary hioh water line: This term refers to the vertical <br />distance from the lowest point on the natural (or artificial/man-made) <br />dike that forms the isolated pond to the ordinary high water line <br />(OHWL) of adjacent streams. This height above the OHWL approximates <br />the 50-year floodplain that is based on professional judgment and field <br />observations of State and Service hydrologists and gaging tables for <br />the Upper Colorado River Basin. Five and one-half feet above the OHWL <br />approximates the 100-year floodplain. This is a relatively simple <br />method for approximating the 50- and 100-year floodplains that is <br />accurate and definable during on-site visits. <br /> <br />Isolated Ponds or Waters: Ponds or waters that have no connection with the <br />river (no outlet). <br />
The URL can be used to link to this page
Your browser does not support the video tag.