Dredged material management

<body topmargin=0 leftmargin=0 marginheight=0 marginwidth=0> <table cellpadding=0 cellspacing=0 border=0><tr> <td valign="top" rowspan="2" width=185 BGCOLOR="#FFFFFF" TEXT="#080000"> <div> <A HREF="index.htm" TARGET="_top" TITLE="David Ford Consulting Engineers"><U><B><IMG SRC="0d058960.png" border=0 width="88" height="150" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></B></U></A></div> <bR> <div>    <FONT SIZE="1" COLOR="#000000" FACE="Verdana" > </FONT></div> <div> <B> <TABLE BORDER="0" CELLPADDING="4" CELLSPACING="1" WIDTH="156" BORDERCOLORLIGHT="#FFFFFF" BORDERCOLORDARK="#FFFFFF" FRAME="VOID" RULES="NONE" HSPACE="0" VSPACE="0" > <tR> <tD VALIGN=TOP HEIGHT= 27 WIDTH="146"><div> David Ford Consulting Engineers, Inc.</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 27 ><NOBR><div> 2015 J Street, Suite 200</div> <div> Sacramento, CA 95811</div> </NOBR></tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 27 WIDTH="146"><div> tel: 916.447.8779</div> <div> fax: 916.447.8780</div> </tD> </tR> <tR> <tD VALIGN=TOP HEIGHT= 27 WIDTH="146"><div> <A HREF="mailto:support@ford-consulting.com" TARGET="_top" TITLE="mailto:support@ford-consulting.com"><U>support@ford-consulting.com</U></A></div> </tD> </tR> </TABLE></B></div> <div>    </div> <bR> <div> <A HREF="index.htm" TARGET="_top" TITLE="David Ford Consulting Engineers"><U>Home</U></A></div> <div> <A HREF="id461.htm" TARGET="_top" TITLE="About us"><U>About us</U></A></div> <div> <A HREF="news.htm" TARGET="_top" TITLE="News"><U>News</U></A></div> <div> <A HREF="hydrologic_engineering.htm" TARGET="_top" TITLE="Hydrologic engineering"><U>Hydrologic engineering</U></A></div> <div> <A HREF="water_resource_planning.htm" TARGET="_top" TITLE="Water resource planning"><U>Water resource planning</U></A></div> <div> <A HREF="flood_economic_and_risk_analyses.htm" TARGET="_top" TITLE="Flood economic and risk analyses"><U>Flood economic/risk analyses</U></A></div> <div> <A HREF="flood_warning.htm" TARGET="_top" TITLE="Flood warning"><U>Flood warning</U></A></div> <div> <A HREF="decision_support_system_development.htm" TARGET="_top" TITLE="Decision support system development"><U>Decision support systems</U></A></div> <bR> </td> <td valign="top" colspan=2 height=40 BGCOLOR="#3366CC" TEXT="#080000" bgproperties="fixed" background="14400980ezthpx.png"> <div> <B>Dredged material management</B></div> <div> </div> </td> </tr><tr> <td valign="top" height=440 colspan=2 BGCOLOR="#FFFFFF" TEXT="#080000" bgproperties="fixed" background="06c00962egerdp.png"> <div> <B> <TABLE BORDER="0" CELLPADDING="2" CELLSPACING="1" WIDTH="547" BORDERCOLORLIGHT="#C0C0C0" BORDERCOLORDARK="#808080" FRAME="BOX" RULES="ALL" HSPACE="0" VSPACE="0" > <tR> <tD VALIGN=TOP COLSPAN=3 BGCOLOR=#CC0000 HEIGHT= 16 WIDTH="537"><div> <B>Situation</B></div> </tD> </tR> <tR> <tD VALIGN=TOP COLSPAN=3 HEIGHT= 372 WIDTH="537"><div> The San Francisco District of the Corps of Engineers is responsible for developing and implementing a long-term management strategy (LTMS) for dredging and dredged material disposal in the San Francisco Bay area. This complex task requires analysis of the system effects. For example, if material is dredged now and disposed in an upland site, that site will not be available for later use.</div> <DIV ALIGN="LEFT"></DIV> <div> <IMG SRC="15580000.jpg" border=0 width="384" height="256" ALT="Example of dredging" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> <div> <I>Example of dredging (Photo from Corps of Engineers)</I></div> </tD> </tR> <tR> <tD VALIGN=TOP COLSPAN=3 BGCOLOR=#339933 HEIGHT= 16 WIDTH="537"><div> <B>Action</B></div> </tD> </tR> <tR> <tD VALIGN=TOP COLSPAN=3 HEIGHT= 269 WIDTH="537"><div> To help District staff evaluate the impacts of various LTMS alternatives, we developed a DSS, designated SPN-D2M2, that links a database of material sources, disposal sites, dredging-transporting equipment, and operation costs with a network flow programming model of the system. The network model finds the long-term operation scheme with maximum utility or minimum adverse impact, given constraints on material sources, disposal sites, and dredging-transporting equipment availability. Reports of the analysis show long-term material management schedules and the long-term state of the system.</div> <div> We developed an easy-to-use interface for the DSS. This insulates District planners and decision makers from the details of databases and network flow programming algorithms, thus permitting them to focus on the important management issues. </div> <div> We presented workshops to train District users and other LTMS participants to use the tool, and we provided on-call help.</div> <div> This DSS is a component of the Corps' ADDAMS package, which is available from the Waterways Experiment Station (WES). Visit the <A HREF="http://www.wes.army.mil/el/elmodels/index.html#addams" target="_blank" TARGET="_top" TITLE="http://www.wes.army.mil/el/elmodels/inde"><U>WES Web site</U></A> to learn more.</div> </tD> </tR> </TABLE></B></div> <bR> <bR> <bR> <bR> </td> </tr></table></body>