My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
FLOOD02077
CWCB
>
Floodplain Documents
>
Backfile
>
1001-2000
>
FLOOD02077
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
11/23/2009 12:57:58 PM
Creation date
10/4/2006 10:35:37 PM
Metadata
Fields
Template:
Floodplain Documents
County
Larimer
Community
Larimer County
Stream Name
Lawn Lake Dam
Title
Hydrology, Geomorphology, and Dam-Break Modelling of the July 15, 1982 Lawn Lake Dam and Cascade Lake Dam Failures
Date
1/1/1983
Prepared For
State of Colorado
Prepared By
USGS
Floodplain - Doc Type
Flood Documentation Report
There are no annotations on this page.
Document management portal powered by Laserfiche WebLink 9 © 1998-2015
Laserfiche.
All rights reserved.
/
119
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 />the stored water to be released rapidly, Third, the slope of the stream <br />(exceeding 20 percent on the Roaring River) and narrow channel limited attenu- <br />ation of the peak discharge. However, as discussed in "Dam-Break Modeling," <br />the flood could have had greater peak discharges with more damage for differ- <br />ent breach development and hydraul i c condi t ions, The flood occurred duri ng <br />daylight hours in clear weather, and with sufficient numbers of witnesses to <br />photograph and relate their experiences, good documentation of the flood was <br />made, The important hydrologic elements of a flood are peak discharges and <br />depths of flow, traveltimes, volumes, frequency, and flooded areas; these <br />elements are discussed in this section of the report. It is important to <br />document dam-break floods since limited information is available for assess- <br />ment and hazard mitigation of possible future dam-break floods, <br /> <br />Flood Data <br /> <br />Station Descriptions and Streamflow Data <br /> <br />Flood data obtained at two gaging stations and five miscellaneous sites <br />in the affected area are tabulated in downstream order in the section entitled <br />"Gaging Station and Miscellaneous-Site Data." Station descriptions give the <br />location of each site, the method of discharge determination, and peak dis- <br />charge or peak stage during the flood. Where available, information also is <br />given on gage datum, nature of gage-height records obtained during the flood, <br />and maximum stage and discharge known prior to this flood. <br /> <br /> <br />Figure 9A.--Water overtopping Cascade Lake dam. <br /> <br />16 <br />
The URL can be used to link to this page
Your browser does not support the video tag.