My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
REP45649
DRMS
>
Back File Migration
>
Report
>
REP45649
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
8/25/2016 12:48:30 AM
Creation date
11/27/2007 10:39:44 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981028
IBM Index Class Name
Report
Doc Date
12/11/2001
Doc Name
1997 AHR & ARR Reclamation REPORT
Annual Report Year
1997
Permit Index Doc Type
HYDROLOGY REPORT
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.
/
14
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
Transitioning to Computer-Aided Drafting System <br />The 1994 AHR Report initially addressed CEC's concerns relative to <br />comparison of contouring between the previous 1993 and 1994 mapping <br />activities. Since reliability of the map work is key to most other activities <br />relative to reclamation, it is unportant to build reliability into this database. <br />This is the fourth year the Computer-aided Drafting (CAD) system has been <br />used for CEC's mapping purposes, and as with previous years, a review of <br />the contour discrepancies (year to year) was again conducted. This review <br />affirms and reinforces statements made in the 1994 AIIR Report, that the <br />discrepancies then noted were the result of earlier techniques and carried <br />forward errors, problems which CEC believes have been eliminated through <br />continued use of the CAD system. Our comparison of the 1997 mapping data <br />to the previous tluee years work products suggests only a few questionable <br />contor~r differences, none significant enough to call into question the <br />modeling technique <br />• Software Explanation <br />SOFTDESK/ADCADD SOFTWARE CIVIL/SURVEY, EARTI-IWORKS <br />and DIGITAL TERRAINE MODELING continues to be used to compare <br />the 1994, 1995 and 1996 site elevation data with the recent 1997 site <br />elevation data. This software prograin is used to first calculate the position <br />and elevation of each elevation point acid points along each elevation contour, <br />and generates a computer model representation of each ground surface. The <br />computer-generated growld surfaces are then used in determining airspace <br />and soil volumes a,id in performing cut/fill calculations. The average end-area <br />method is used in all volume calculations, and the prismordial grid method is <br />used in all cut/fill calculations. <br /> <br />AHR-1997 _125_ STIPULATION #17 <br />
The URL can be used to link to this page
Your browser does not support the video tag.