My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
FLOOD01568
CWCB
>
Floodplain Documents
>
Backfile
>
1001-2000
>
FLOOD01568
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
11/23/2009 1:02:50 PM
Creation date
10/4/2006 10:07:14 PM
Metadata
Fields
Template:
Floodplain Documents
County
Pueblo
Community
Pueblo
Stream Name
Arkansas River
Title
Technical Report, FIS Revision for Pueblo
Date
3/1/1981
Prepared For
FEMA
Prepared By
MSM Consultants, Inc.
Floodplain - Doc Type
Floodplain Report/Masterplan
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.
/
265
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 />depth-duration intensity curve and the NOAA Atlas for Colorado. <br />Unit hydrographs used in this determination were calculated using <br />procedures recommended by Urban Drainage and Flood Control <br />District (UDFCD) as is the official policy of the City of <br />Pueblo. Loss rates were calculated using SCS curve numbers and a <br />recent soil survey of the Pueblo area. All curve numbers were <br />checked by an official of the SCS in Denver. The peak laO-year <br />inflow to Lake Minnequa was calculated to be 3400 cfs. <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />The Lake Minnequa outflow hydrograph was developed using the <br />Modified PuIs routing method with critical depth calculations at <br />the outflow section. The stage volume relationships were <br />developed from previous work by Sellards and Grigg and the COE <br />and the City of Pueblo 2-foot contour map. The <br />Stage/Volume/Discharge curves developed~ by MSM are therefore <br />similiar to the previous curves. Assuming the lake to be at full <br />stage during the lOa-year flood event, the peak lOa-year outflow <br />discharge was found to be 2400 cfs with a volume of 950 <br />acre-feet. <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />Although we feel that our hydrologic determination is a <br />justifiable engineering procedure, several problems were <br />encountered during our analysis. We were unable, due to <br />inadequate topographic mapping, to confirm the exact size and <br />shape of the Lake Minnequa drainage basin. <br /> <br />. <br /> <br />-5- <br /> <br />. <br />
The URL can be used to link to this page
Your browser does not support the video tag.