My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
BOARD00154 (2)
CWCB
>
Chatfield Mitigation
>
Board Meetings
>
Backfile
>
1-1000
>
BOARD00154 (2)
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
8/16/2009 2:45:57 PM
Creation date
5/1/2007 10:23:59 AM
Metadata
Fields
Template:
Board Meetings
Board Meeting Date
3/13/2007
Description
ISF Section - Notice of 2008 Instream Flow Recommendations and Summary of ISF Workshop
Board Meetings - Doc Type
Memo
Jump to thumbnail
< previous set
next set >
There are no annotations on this page.
Document management portal powered by Laserfiche WebLink 9 © 1998-2015
Laserfiche.
All rights reserved.
/
212
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 /> <br />. <br /> <br />. <br /> <br />DRAFT INSTREAM FLOW RECOMMENDATION <br /> <br />Mr. Dan Merriman <br />Colorado Water Conservation Board <br />1313 Sherman Street, Room 721 <br />Denver, Colorado 80203 <br /> <br />Dear Mr. Merriman: <br /> <br />The Bureau of Land Management (BLM) and the Colorado Division of Wildlife are writing this <br />letter to formally communicate their instream flow recommendation for Baldy Creek, located in <br />Water Division 5. <br /> <br />Location and Land Status. Baldy Creek is tributary to Garfield Creek approximately four <br />miles south of New Castle, Colorado. The creek is located within the lower Colorado River <br />watershed. This recommendation covers the stream reach beginning at the headwaters and <br />extending downstream to the headgate of the Murray and Yule Ditch. Approximately 77 percent <br />of the 9.0-mile reach is located on federal and state lands, while the remaining 23 percent is <br />located on private lands. The headwaters of the creek begin on BLM lands, and then the creek <br />flows into the Garfield Creek State Wildlife Area. Prom there, the creek flows through a mixture <br />of private and BLM lands before flowing into another CDOW parcel that is part of the Garfield <br />State Wildlife Area. <br /> <br />Biological Summary. Baldy Creek is a high gradient stream, with large substrate size. The <br />creek is often confined by a narrow canyon, and it has cut down to bedrock in numerous <br />locations. The riparian community is very vigorous in the upper portions of the creek. The <br />health of the riparian community is improving on the portions of the creek that are easily <br />accessible for public use and livestock grazing. The creek provides good pool habitat, but low <br />flows in late summer and fall are a limiting factor for the fish population. Fishery surveys <br />indicate that the creek supports self-sustaining population of Colorado River Cutthroat Trout. <br /> <br />R2Cross Analysis. The data analysis, coordinated between BLM and Division of Wildlife, <br />indicates that the following flows are needed to protect the fishery and natural environment to a <br />reasonable degree. <br /> <br />6.5 cubic feet per second is recommended during the snowmelt fUnoffperiod <br />from May 1 through June 30. This recommendation is driven by the average <br />depth and average velocity criteria. Because the creek is characterized by short <br />riffles between numerous plunge pools, it is very important to maintain adequate <br />velocity and depth in the limited riffle habitat. <br /> <br />1.5 cubic feet per second is recommended for the base flow period from July I <br />through April 30. This recommendation is driven by water availability. This <br />flow rate will allow the creek to meet the wetted perimeter criteria and provide <br />sufficient physical habitat for the fish during late summer and early fall, when <br />water temperatures are warm and the fish are gaining weight to enable them to <br />
The URL can be used to link to this page
Your browser does not support the video tag.