My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
FLOOD04773
CWCB
>
Floodplain Documents
>
Backfile
>
4001-5000
>
FLOOD04773
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
1/25/2010 6:47:12 PM
Creation date
10/5/2006 12:57:54 AM
Metadata
Fields
Template:
Floodplain Documents
County
Montezuma
Community
Dolores & Montezuma County
Stream Name
Dolores River
Basin
San Juan/Dolores
Title
Dolores River near Dolores, Colorado Flood Insurance Study
Date
5/1/2004
Prepared For
Dolores
Prepared By
US Army Corps of Engineers
Floodplain - Doc Type
Floodplain Report/Masterplan
There are no annotations on this page.
Document management portal powered by Laserfiche WebLink 9 © 1998-2015
Laserfiche.
All rights reserved.
/
121
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 />I <br /> <br />I <br /> <br />I <br /> <br />I <br /> <br />during subbasin delineation in the Gco-HMS process (see Appendix A, Table 4). Unit <br /> <br />hydrograph paramelcrs for the subbasins are listed on Table 7. <br /> <br /> Table 7 <br /> l'nit lI)"drograph Parameters <br /> 8asin D.A. L J '-u I sro~ "n" I Lag <br /> Name (mil) (mi) (mi) I (hrs) <br /> - UllImi) - <br />West Fork Dolores ]68.41 33.85 16.58 139.13 0.16 16.66 <br />Dolores Headwaters ]05.33 21.22 9.38 15].42 0.16 11.06 <br />Dolores Upper Mid 65.32 15.11 6.89 232.25 0.16 7.97 <br />Bear Creek 33.63 15.]2 7.43 191.00 0.16 8.5\ <br />Dolores '''lid 74.25 20.99 9.09 201.55 0.16 10.31 <br />Dolores Lower 57.34 19.78 9.39 105.21 0.16 11.09 <br />Lost Canyon Creek 74.06 27.74 14.71 128.64 0.16 14.98 <br />Lost Canyon Creek Out 3.43 5.34 2.38 105.29 0.]6 4.16 <br />Dolores Out 0.57 1.85 1.07 2]9.16 0.16 1.79 <br />Dolores Lower Out 0.53 2.06 1.24 165.73 0.16 2.08 <br /> ._________________.uo______ <br />D.A = drainage area in mil <br />L = length along the longest watercourse in miles. <br />[" '" length along the longest watercourse. measured upstream to the point opposite the center of the area in miles. <br />Slope" overall slope of the longesl Mltercourse between the headwater and collection point in feet per mile. <br />n ,. coefficient representing basin roughness and shape. <br />Lag ,. elapsed time from the beginning of unit precipitation 10 the inslant that the S-curve reaches 50 percent <br /> of ultimate discharge in hours. <br />Refer 10 Plule 7 for S-Curvc <md Plate 8 for LOll> Rclalionshin <br /> <br />6.7 Stream Routing Parametcrs. The hydrograph at eachjunetion was routcd to the next <br /> <br />downstream junction and combincd with thc local subbasin hydro graphs. Thc length of each <br /> <br />rouling reach between junctions was calculatcd using topographic maps. Junction elevations <br /> <br />were provided by USGS streaml10w gaging station records or wcrc dctennined from thc <br /> <br />examination of terrain maps to calculate slopcs for the routing rcaches. Routing reach elevations <br /> <br />and slopes are listed on Table 8. <br /> <br />20 <br />
The URL can be used to link to this page
Your browser does not support the video tag.