My WebLink
|
Help
|
About
|
Sign Out
Search
FLOOD11734
CWCB
>
Floodplain Documents
>
DayForward
>
1100
>
FLOOD11734
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
5/17/2010 12:52:32 PM
Creation date
5/20/2008 2:29:02 PM
Metadata
Fields
Template:
Floodplain Documents
County
Douglas
Stream Name
Cherry Creek
Title
Probable Maximum Precipitation Study for Cherry Creek Reservoir - Questions and AWA Actions
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.
/
97
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 />Justification and precedence are provided for not using the 1,000 feet immunity. <br />HMR 57 provides 'precedence for applying the full moisture elevation adjustment. <br /> <br />5. 19-hours for the 1921 storm duration was used vs 18-hours. <br /> <br />A W A has not completed any re-evaluation of this question. <br /> <br />6, Use of the GIS iso~yetal analysis vs the NWS isoheytal analysis for the 1921 <br />storm. <br /> <br />A W A Action: The NWS isohyetal pattern has been digitized and transposed to <br />the Cherry Creek Drainage basin. <br /> <br />8, Provide analyses Of various storm centering for the 1935 storm <br /> <br />A W A Action: Various centering has been completed without the restriction of <br />constraining the southern most center to the south side of the Palmer Divide. <br /> <br />10, Figure needs to be verified <br /> <br />A W A action: Still need to verify <br /> <br />11. GIS vs published isoheytal pattern for Holly 1965 <br /> <br />A W A Action: A W A has hot located NWS isoheytal map but will keep looking, will <br />digitize and use, I <br /> <br />12, Use of upper limit of 1.5 for maximization vs 1.7 <br /> <br />A W A Action: See Questi:on 3 <br /> <br />13. The CCC isohyetal map was produced by the Colorado Climate Center. It is <br />unknown if the Corps considers this to be a published isohyetal pattern since it <br />was not produce by the NWS. A W A used a GIS isohyetal analysis in the study. <br /> <br />A W A Action: The CCC isohyetal map has been digitized and transposed to the Cherry <br />Creek drainage basin. <br /> <br />14. The CCC isohyetal map was not used for Pawnee Creek for the same reasons as <br />stated above. A WA as part of a project to provide a statewide PMP for Nebraska <br />has performed a full storm analysis including hourly isohyetal analyses, total <br />storm isohyetal analysis and storm DAD, <br /> <br />A W A Action: A W A is u~ing the storm analysis from the Nebraska study for Pawnee <br />Creek. <br />
The URL can be used to link to this page
Your browser does not support the video tag.