My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
FLOOD01680
CWCB
>
Floodplain Documents
>
Backfile
>
1001-2000
>
FLOOD01680
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
11/23/2009 12:58:10 PM
Creation date
10/4/2006 10:16:25 PM
Metadata
Fields
Template:
Floodplain Documents
Designation Number
126
County
Boulder
Community
Unincorporated Boulder County
Stream Name
St. Vrain Canyon upstream of Lyons
Title
Floodplain Information Report - South St. Vrain Canyon upstream of Lyons, Boulder County, CO
Date
2/1/1978
Designation Date
1/1/1979
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.
/
140
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 />I <br />I <br />I Ref. Station <br /> Point Fr. Mouth <br />I Number (Feet) <br />195 428+65 <br />I 196 433+80 <br /> 197 438+60 <br />I 197.9 438+80 <br />I 198.1 439+05 <br /> 199 439+45 <br />I 200 442+50 <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />30 <br /> <br />TABLE 6 <br />FLOOD FREQUENCY - ELEVATION AND DISCHARGE DATA <br />MIDDLE ST. VRAIN CREEK, BOULDER COUNTY, COLORADO <br /> <br /> 10-Year Flood 50-Year Flood lOO-Year Flood 500-Year Flood <br /> Stream Bed Crest Peak Crest Peak Crest Peak Crest Peak <br /> Elevation Elevation Discharge Elevation Discharge Elevation Discharge Elevation Discharge <br />Identif . (Ft. MSL) (Ft. MSL) (cfs) (Ft. MSL) (cfs) (Ft. MSL) (cfs) (Ft. MSL) (cfs) <br /> 8"23.20 8"25.68 "70.00 8426. &2 860.00 8"27.18 1180.00 8"28.75 2320.00 <br /> 8"62.70 846".67 4 70.00 8465.43 860.00 8465.91 1180.00 8"61.39 2320.00 <br /> 8486.50 8489.58 .. 70. 00 8490.62 860.00 8491.31 1180.00 8493.18 2320.00 <br />State route 72 bridge 8488.00 84<)0.33 470. 00 8491.42 860.00 8492.17 1180.00 8494.09 2320.00 <br />at Peaceful Valley <br /> 8488.00 8491.52 470.00 8492.83 860.00 8493.66 1180.00 8496.01 2320.00 <br /> 8489.70 84 n. 7" 4 70.00 8493.93 860.00 84<;4.19 1180.00 8496.91 2320.00 <br /> 8506.80 8509.01 470.00 8509.7a 860.00 8510.29 1180.00 8511.23 232 0.00 <br />
The URL can be used to link to this page
Your browser does not support the video tag.