My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
GENERAL33541
DRMS
>
Back File Migration
>
General Documents
>
GENERAL33541
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
8/24/2016 7:55:28 PM
Creation date
11/23/2007 7:39:49 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981037
IBM Index Class Name
General Documents
Doc Date
5/10/1982
Doc Name
HYDRAULIC ANALYSIS OF THE AS BUILT RESTORED NEWLIN CREEK CHANNEL
Permit Index Doc Type
STIPULATIONS
Media Type
D
Archive
No
There are no annotations on this page.
Document management portal powered by Laserfiche WebLink 9 © 1998-2015
Laserfiche.
All rights reserved.
/
10
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).
View images
View plain text
The overbank area should have riprap protection extended to a minimum of <br />10 feet beyond the channel bank after the area is totally reclaimed to <br />increase the stability of the channel. The riprap should have a mean diameter <br />of 1.5 feet at the channel bank and can be reduced to 6 inches at the point 10 <br />feet from the bank. The overbank area beyond the riprap area should be <br />vegetated (Figure 3). <br />' V. SUMMARY <br />' The restored Newlin Creek channel was constructed differently than the <br />original design as suggested in the report "Determination of Hydrologic <br />' Consequences, G.E.C. Minerals, Inc." dated September 1981. Based on our site <br />investigation and hydraulic analysis, the as-built channel has more capacity <br />than the original design. The riprap protection for the channel is sufficient <br />' to stablize the channel. In comparing the existing Newlin Creek upstream and <br />downstream of the Prospect Pit, the restored channel also has more capacity <br />than those two reaches. <br />Since the area has not been totally reclaimed, once the pit area is <br />' reclaimed by Dorchester the overbank area should be reclaimed as suggested <br />having riprap and vegetation protection so the restored Newlin Creek can <br />' handle a 700-year, 24-hour peak runoff using overbank area. <br /> <br /> <br /> <br />1 <br />1 <br /> <br />1 <br />LJ <br />
The URL can be used to link to this page
Your browser does not support the video tag.