| Rabeaa Point of Entry Screening Facility Rabeaa, Iraq |
11 Jan 2010 |
40 pages |
| Authors:
Angelina Johnston; Kevin O'Connor; Todd Criswell; Shawn Sassaman; SPECIAL INSPECTOR GENERAL FOR IRAQ RECONSTRUCTION ARLINGTON VA
|
 | The objective of this project assessment was to provide real-time relief and reconstruction project information to interested parties to enable appropriate action, if warranted. Specifically, the Special Inspector General for Iraq Reconstruction (SIGIR) determined whether: 1. Project components were adequately designed prior to construction or installation; 2. Construction or rehabilitation is in compliance with the standards of the design; 3. Adequate quality management programs are being utilized; 4. Sustainability was ... |
|
| Using Army Corps of Engineers Reservoirs for Municipal and Industrial Water Supply: Current Issues |
04 Jan 2010 |
|
| Authors:
Nicole T Carter; LIBRARY OF CONGRESS WASHINGTON DC CONGRESSIONAL RESEARCH SERVICE
|
 | Congress has limited the use of Army Corps of Engineers dams and reservoirs for municipal and industrial (M&I) water supply. Growing M&I demands have raised interest in - and concern about - changing current law and reservoir operations to give Corps facilities a greater role in M&I water storage. A reallocation of storage to M&I use from a currently authorized purpose (e.g., hydropower or navigation) changes the types of benefits ... |
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| Factors Contributing to Corrosion of Steel Pilings in Duluth-Superior Harbor |
Nov 2009 |
14 pages |
| Authors:
Richard I Ray; Jason S Lee; Brenda J Little; NAVAL RESEARCH LAB STENNIS SPACE CENTER MS OCEANOGRAPHY DIV
|
| Field observations and laboratory testing were used to conclude that aggressive localized corrosion of carbon steel pilings in Duluth-Superior Harbor, Minnesota and Wisconsin, is caused by the following sequence of biological, chemical, and physical events. Iron-oxidizing bacteria colonize the carbon steel sheet pilings and produce tubercles, which are made up of intact and/or partially degraded remains of bacterial cells mixed with amorphous hydrous ferric oxides. The reducing conditions beneath the ... |
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| SIGAR: Special Inspector General for Afghanistan Reconstruction |
30 Oct 2009 |
161 pages |
| Authors:
SPECIAL INSPECTOR GENERAL FOR AFGHANISTAN RECONSTRUCTION ARLINGTON VA
|
| During this quarter in Afghanistan, overall security continued to deteriorate, with insurgent attacks spiking during the period leading up to the August 20 presidential and provincial council elections. Afghanistan's Independent Election Commission (IEC) announced preliminary results in September, but allegations of widespread fraud prevented certification of the results. The Electoral Complaints Commission (ECC), together with the IEC, developed and carried out an audit process to determine the extent of the ... |
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| Air Force Civil Engineers in Joint Engineer Operations: Validating the Concept and Incorporating Lessons Learned |
23 Oct 2009 |
24 pages |
| Authors:
Allen; John J Jr; NAVAL WAR COLL NEWPORT RI
|
| This paper examines the recent assignment of U.S. Air Force civil engineers to joint missions, across the range of military operations, in order to forecast the feasibility and suitability of continuing this practice in the future. Air Force engineers have been extremely effective in joint combat support roles, since their substantial joint combat use beginning in 2004. Based on this success, their demand has grown and will likely grow beyond ... |
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| Depth-Utilization Analysis for Estimating Economic Activity Supported by Dredging |
Sep-2009 |
10 pages |
| Authors:
Kenneth W Mitchell; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS COASTAL AND HYDRAULICS LAB
|
| The U.S. Army Corps of Engineers (USACE) has the federal mission of maintaining the national waterborne transportation infrastructure. In support of this mission, the USACE invests hundreds of millions of dollars annually towards operation and maintenance, primarily dredging, of federal channels and waterways. Limited funding in recent years has forced project managers to make difficult decisions concerning which projects and sub-projects are to be dredged and which are to be ... |
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| Concepts for Functional Restoration of Barrier Islands |
Sep-2009 |
15 pages |
| Authors:
Julie D Rosati; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS ENVIRONMENTAL LAB
|
| This Coastal and Hydraulics Engineering Technical Note (CHETN) presents guidance for functional restoration of barrier islands. The concept of functional restoration is introduced here as an engineering and ecological design such that a barrier island can perform as a wave attenuator, storm surge buffer, and ocean boundary for an estuary, bay, and mainland over the defined project lifetime. Ecological design is required as part of the restoration to minimize initial ... |
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| Port Isabel (GIWW) Channel Improvements at the Queen Isabella Causeway. Laguna Madre, Texas, Navigation Improvement Project |
Sep-2009 |
70 pages |
| Authors:
Timothy W Shelton; Dennis Webb; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS COASTAL AND HYDRAULICS LAB
|
| Laguna Madre is located on the southern shore of the state of Texas. The Gulf Intracoastal Waterway (GIWW) passes under the Queen Isabella Causeway between Port Isabel and South Padre Island. In 2001, a tow struck the Queen Isabella Causeway collapsing a span of the bridge and resulting in the death of eight motorists. In response to that event, the U.S. Army Engineer District, Galveston, (SWG) was tasked with making ... |
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| Dover Dam Physical Model Study, Tuscarawas River, Dover OH |
Sep-2009 |
68 pages |
| Authors:
Elizabeth C Burg; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS COASTAL AND HYDRAULICS LAB
|
| Dover Dam is located on the Tuscarawas and Muskingum Rivers near Dover, OH. Based on data collected since the dam's original construction, it is possible that the dam will be overtopped by the Probable Maximum Flood. Several design alternatives are being considered to address this issue. A physical model study was conducted at the U.S. Army Engineer Research and Development Center, Coastal and Hydraulics Laboratory to collect data for use ... |
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| J. T. Myers Landside Lock Outlet Diffuser Study, Ohio River |
Sep-2009 |
41 pages |
| Authors:
Hite; John E Jr; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS COASTAL AND HYDRAULICS LAB
|
| Navigation improvements are planned at J. T. Myers Locks and Dam on the Ohio River main stem. The existing project consists of a navigation dam, a 1,200-ft-long by 110-ft-wide main lock chamber adjacent to a 600-ft-long by 110-ft-wide auxiliary lock chamber. One of the improvements includes developing a 1,200-ft long lock chamber from the existing 600-ft-long lock chamber. The outlet design originally proposed for the filling and emptying system in ... |
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| Expedient Spall Repair Methods and Equipment for Airfield Pavements Preprint |
Aug-2009 |
20 pages |
| Authors:
Athar Saeed; Michael I Hammons; APPLIED RESEARCH ASSOCIATES INC TYNDALL AFB FL
|
| Selected equipment and procedures were evaluated to expeditiously prepare a spall for repair with rapid-setting materials. The objective of this research was to develop one or more methods to excavate and prepare a 2-foot-wide by 2-foot-long by 4-inch-deep spall for placement of a rapid-setting repair material in 15 minutes or less. A secondary objective was to correlate various excavation methods with a relative life expectancy of the repair. For five ... |
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| Martin County, FL, Case Study: Physical and Economic Performance of Martin County Federal Shore Protection Project During 2004 Tropical Season. Flood and Coastal Storm Damage Reduction Program |
Aug-2009 |
81 pages |
| Authors:
Mark B Gravens; Linda K Lent; Brian K Harper; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS COASTAL AND HYDRAULICS LAB
|
| This report presents the details of a case study analysis of the physical and economic performance of the Martin County Federal shore protection project during the 2004 tropical season. The goal of the analysis was to estimate the damages prevented by the shore protection project in Martin County over the 2004 tropical season, which brought two landfalling hurricanes across the southern end of Hutchinson Island just south of the project. ... |
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| Flood and Coastal Storm Damage Reduction Program. Beach-fx User's Manual: Version 1.0 |
Aug-2009 |
262 pages |
| Authors:
Mark B Gravens; Cory M Rogers; Kristine A Jacobson; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS COASTAL AND HYDRAULICS LAB
|
| The need to strengthen the linkages between engineering analyses (project performance and evolution) and planning functions (alternative analysis and economic justification) with respect to coastal storm damage reduction projects within the Corps has led to the development of the life-cycle simulation model Beach-fx. Beach-fx provides a comprehensive analytical framework for evaluating the physical performance and economic benefits and costs of shore protection projects, particularly beach nourishment along sandy shores. The ... |
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| Tikrit Location Command Project Achieving Contract Goals by Using Sound Management Practices |
30-Jul-2009 |
29 pages |
| Authors:
Nancee K Needham; David R Warren; Richard R Kusman; Paula A Braun; OFFICE OF INSPECTOR GENERAL ARLINGTON VA SPECIAL INSPECTOR GENERAL FOR IRAQ RECONSTRUCTION
|
| SIGIR has a legislative requirement to prepare a final forensic audit on funds made available for Iraq reconstruction prior to its termination. This review examines the Tikrit Location Command, a $37.8 million project to construct a new area support base for the Iraqi Army. The project is a joint effort between the Multi-National Security Transition Command-Iraq (MNSTC-I) and the Iraq Training and Advisory Mission-Army (ITAM). The Joint Contracting Command-Iraq/Afghanistan awarded ... |
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| Defense Critical Infrastructure: Actions Needed to Improve the Consistency, Reliability, and Usefulness of DOD's Tier 1 Task Critical Asset List |
17-Jul-2009 |
26 pages |
| Authors:
Davi M D'Agostino; GOVERNMENT ACCOUNTABILITY OFFICE WASHINGTON DC
|
| As discussed with the committees of jurisdiction for this report, we examined (1) the extent to which the combatant commands and military services applied consistent and clear criteria in identifying and prioritizing their submissions of assets to DOD's Tier 1 Task Critical Asset list; (2) the actions ASD(HD&ASA) has taken to promote coordination among the Joint Staff, the combatant commands, and the military services to identify critical assets; and (3) ... |
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| Missan Surgical Hospital Under the Economic Support Fund Al Amarah, Iraq |
16-Jul-2009 |
66 pages |
| Authors:
Angelina Johnston; Kevin O'Connor; Shawn Sassaman; Todd Criswell; OFFICE OF INSPECTOR GENERAL ARLINGTON VA SPECIAL INSPECTOR GENERAL FOR IRAQ RECONSTRUCTION
|
| The objective of this project assessment was to provide real-time relief and reconstruction project information to interested parties to enable appropriate action, when warranted. Specifically, the Special Inspector General for Iraq Reconstruction (SIGIR) determined whether: 1. Project components were adequately designed prior to construction or installation; 2. Construction or rehabilitation is in compliance with the standards of the design; 3. Adequate quality management programs are being utilized; 4. Sustainability is ... |
|
| Mujarrah Canal Bridge, Ramadi, Iraq |
14-Jul-2009 |
38 pages |
| Authors:
Angelina Johnston; Kevin O'Connor; Todd Criswell; Shawn Sassaman; OFFICE OF INSPECTOR GENERAL ARLINGTON VA SPECIAL INSPECTOR GENERAL FOR IRAQ RECONSTRUCTION
|
| On 6 March 2009, SIGIR performed an on-site assessment of the Mujarrah Canal Bridge project. The $1.3 million project was funded from the Commander's Emergency Response Program. Due to security concerns, the total time available on site was approximately one hour; therefore, an indepth review was not possible. The objective of the project was to design, construct, and repair the Mujarrah Canal Bridge to increase commercial traffic between Ramadi and ... |
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| Development of a Multi-Attribute Utility Analysis Model for Selecting Aquatic Plant Restoration Sites in Reservoirs |
Jul-2009 |
14 pages |
| Authors:
M J Grodowitz; M Smart; G O Dick; J A Stokes; J Snow; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS
|
| This technical note describes development of a decision support tool that uses multiattribute utility analysis to aid resource managers in selection of suitable sites for establishing native aquatic vegetation in large, multi-purpose reservoirs. |
|
| Environmental Contamination: Lessons Learned from the Cleanup of Formerly Used Defense and Military Munitions Sites |
Jun-2009 |
22 pages |
| Authors:
Diane Raynes; Alison O'Neill; Anu Mittal; Elizabeth Beardsley; Justin Mausel; Amanda Leisoo; GOVERNMENT ACCOUNTABILITY OFFICE WASHINGTON DC
|
| Under the Defense Environmental Restoration Program (DERP), the Department of Defense (DoD) has charged the Army Corps of Engineers (the Corps) with cleaning up 4,700 formerly used defense sites (FUDS) and active sites that were under its jurisdiction when they were initially contaminated. The 661-acre Spring Valley site in Washington, D.C. is one such site. Like many other FUDS, the U.S. Army used the Spring Valley site during World War ... |
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| DAM_Explorer: A Modeling Framework for Assessing the Physical Response of Streams to Dam Removal |
Jun-2009 |
7 pages |
| Authors:
Jock Conyngham; Chris Wallen; CORPS OF ENGINEERS WASHINGTON DC ECOSYSTEM MANAGEMENT AND RESTORATION RESEARCH PROGRAM
|
| Dam removals and modifications are increasing areas of focus for US Army Corps of Engineers (USACE) Districts from several standpoints: design of restoration projects and quantifying potential environmental impacts (Operations, Continuing Authorities Projects, Support for Others, and General Investigations) and the evaluation of permit applications (Regulatory). Physical response of the reservoir bed and downstream channel boundary as well as multiple parameters of sediment dynamics are topics of central interest in ... |
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| Resource Assurance: Balancing the Resource Equation |
Jun-2009 |
46 pages |
| Authors:
Betsy Cantwell; OAK RIDGE NATIONAL LAB TN
|
|
| Terrorism and Security Issues Facing the Water Infrastructure Sector |
26-May-2009 |
|
| Authors:
Claudia Copeland; LIBRARY OF CONGRESS WASHINGTON DC CONGRESSIONAL RESEARCH SERVICE
|
| Damage to or destruction of the nation's water supply and water quality infrastructure by terrorist attack or natural disaster could disrupt the delivery of vital human services in this country, threatening public health and the environment, or possibly causing loss of life. Interest in such problems has increased greatly since the September 11, 2001, terrorist attacks in the United States. Across the country, water infrastructure systems extend over vast areas, ... |
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| Health Implications of Biofilms in Drinking Water Systems |
19-May-2009 |
11 pages |
| Authors:
Anne K Camper; MONTANA STATE UNIV BOZEMAN
|
| Pathogenic bacteria can be trapped and retained in biofilms in drinking water distribution systems for times that exceed their persistence in the water. Consequently, biofilms can be used as a tool for interrogating a drinking water system to determine if an agent has been added. Basic and applied research has provided insight on how to detect pathogens, how they are retained in biofilms, the behavior of these organisms in biofilms, ... |
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| Department of Defense Military Construction Program Plan |
15 May 2009 |
24 pages |
| Authors:
DEPARTMENT OF DEFENSE WASHINGTON DC
|
| The American Recovery and Reinvestment Act of 2009 (Recovery Act) provides $2.18 billion in funding for the Department of Defense Military Construction Program (MILCON). This program will build new facilities in the U.S., including $1.33 billion for new hospitals in California and Texas; another $114 million for family housing construction; $240 million for 21 Child Development Centers; and $100 million for 2 Warrior in Transition (WT) facilities. The $120 million ... |
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| Field Testing and Load Rating Report, Bridge FSBR-514, Fort Shafter, Hawaii |
May-2009 |
73 pages |
| Authors:
Brett Commander; Wilmel Varela-Ortiz; Terry R Stanton; Henry Diaz-Alvarez; BRIDGE DIAGNOSTICS INC BOULDER CO
|
| Bridge Diagnostics was contracted by the U.S. Army Corps of Engineers to perform live-load testing and load rating on Bridge FSBR-514 on Walker Road over Kahauiki Stream, Fort Shafter, Hawaii, in conjunction with three other structures - Bridge FSBR-201, FSBR-1608, and ERBR-9. A primary goal of the live-load testing was to determine the relative effects of different military load configurations. A second goal was to use the measured load responses ... |
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| Innovation in Engineering Outreach: Engineering 11 as a Tool for Recruiting Minority Students to Engineering |
30-Apr-2009 |
11 pages |
| Authors:
Jeigh Shelly; AIR FORCE RESEARCH LAB EDWARDS AFB CA PROPULSION DIRECTORATE
|
| A unique opportunity for recruiting engineering students has developed in the Antelope Valley of Southern California (AV). While the AV refers to itself as the Aerospace Valley, with a high percentage of the workforce employed by Edwards Air Force Base and the major Aerospace Prime Contractors, it has had no local baccalaureate degree granting institution to support these high-tech industries. A State University College of Engineering has partnered with the ... |
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| Asset-Transfer Process for Iraq Reconstruction Projects Lacks Unity and Accountability |
26-Apr-2009 |
43 pages |
| Authors:
Dorian Herring; David R Warren; W D Haigler; Waheed Nasser; Clarence Brooks; Nancee Needham; OFFICE OF INSPECTOR GENERAL ARLINGTON VA SPECIAL INSPECTOR GENERAL FOR IRAQ RECONSTRUCTION
|
| After more than four years of reconstruction activity, U.S. reconstruction agencies continue to experience difficulties transferring completed projects to the Government of Iraq (GOI). GOI recognition of projects is important to ensure ongoing support for the projects, to inform its own reconstruction planning, and to leverage completed projects to obtain financing for future initiatives from world markets. This review follows up on SIGIR's earlier work to determine the following: (1) ... |
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| Bactericidal Efficacy of Sanitizers Produced by Commercial Water Treatment Generators |
Apr-2009 |
23 pages |
| Authors:
CLAIRE LEE; Edmund M Powers; Joshua Magnone; Chad Haering; POWERS (EDMUND M) CO FRAMINGHAM MA
|
| Five commercial water sanitizer generators were tested, by the U.S. Army Natick Soldier Research, Development and Engineering Center (NSRDEC), for bactericidal efficacy of their sanitizer on stainless steel surfaces. Sanitizers generated were Acid Electrolyzed Water (AEW), hydrogen peroxide, mixed oxidants, and ozone. Manually produced chlorine dioxide was also tested. Surfaces were inoculated with three strain cocktails of S. aureus and E.coli, dried and then immersed in a solution of each ... |
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| Iraq: Reconstruction Assistance |
12-Mar-2009 |
|
| Authors:
Curt Tarnoff; LIBRARY OF CONGRESS WASHINGTON DC CONGRESSIONAL RESEARCH SERVICE
|
| A large-scale assistance program has been undertaken by the United States in Iraq since mid-2003. To date, about $49 billion has been appropriated for Iraq reconstruction. Most recently, in June 2008, Congress approved over $4 billion for Iraq reconstruction in a FY2008/2009 supplemental appropriations bill, H.R. 2642 (P.L. 110-252). The FY2009 regular foreign operations appropriations (P.L. 111-8, Division H, H.R. 1105, signed by the President on March 11, 2009) provides ... |
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| The Engineer Shuffle: An Analysis of the Engineer Role within the SC MAGTF Concept |
20-Feb-2009 |
15 pages |
| Authors:
Tony M Mitchell; MARINE CORPS COMMAND AND STAFF COLL QUANTICO VA
|
| How does the future of security cooperation look through the sights of an engineer? The short answer is that this has yet to be determined. As the Marine Corps positions itself to shift its focus away from Operation Iraqi Freedom, Marine Corps leadership is starting to look toward the future. The commandant's Security Cooperation Marine Air-Ground Task Force (SC MAGTF) concept is an impressive attempt to gain ground in Phase ... |
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| Advanced Spall Repair Methods and Equipment |
Feb-2009 |
62 pages |
| Authors:
Michael I Hammons; AIR FORCE RESEARCH LAB TYNDALL AIR FORCE BASE FL AIRBASE TECHNOLOGIES DIV
|
| A series of experiments were performed using five excavation methods on nominal 2-foot wide, by 2-foot long by 4-inch deep spalls. The objective of this research was to develop one or more methods that will allow field personnel to excavate and prepare a 2-foot wide by 2-foot long by 4-inch deep spall for placement of a rapid-setting repair material in fifteen minutes or less. A secondary objective was to correlate ... |
|
| Environmental Assessment to Replace Utility Poles at Bear Creek and Coast Road, Vandenberg Air Force Base, California |
Feb-2009 |
32 pages |
| Authors:
Phillip W Rieger; CIVIL ENGINEER SQUADRON (30TH) VANDENBERG AFB CA ENVIRONMENTAL FLIGHT
|
| Environmental Assessment of the effects of replacing two utility poles at VAFB, CA to raise the utility lines crossing Bear Creek, and thus allow transfer of new missile satellite along this route. Higher lines required because new satellite fairing is larger than those previously transported to the launch complex accessed by this route. Significant issues discussed in the EA included effects on Threatened and Endangered Species and Cultural Resources. Consultation ... |
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| Sensor Enabled Water Quality and Corrosion Degradation Assessment Systems for Water Distribution Networks |
Feb-2009 |
30 pages |
| Authors:
Mark Ginsberg; Vincent F Van Hock; Vicki Blaricum; Eddy D Smith; ENGINEER RESEARCH AND DEVELOPMENT CENTER CHAMPAIGN IL CONSTRUCTION ENGINEERING RESEARCH LAB
|
| This is system that consists of: Corrosion Rate Sensors, Water Quality Sensors (HACH Pipe-Sonde), and Water Distribution Monitoring Process Sensors (HACH Guardian Blue). Tying it all together - each of these technologies contributes to improved corrosion control and water quality management for water distribution systems |
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| A Novel Structural Health Management Approach for Steel Bridges |
Feb-2009 |
42 pages |
| Authors:
Vincent Hock; Michael Miller; Richard Lampo; Robert Mason; Lawrence Gintert; Mark Singleton; Steven Sweeney; Keith Chandler; CONCURRENT TECHNOLOGIES CORP JOHNSTOWN PA
|
| OBJECTIVES: Demonstrate and validate state-of-the-art and remote structural health and corrosion degradation monitoring of steel bridges * Employ system on two subject bridges to greatly reduce risk of catastrophic failure by providing advance warning of growing structural problems caused by corrosion/materials degradation * Subject Bridge 1 -1-20 Bridge, Vicksburg, MS - Steel truss through deck - About 23,000 vehicles per day - Westward movement of bridge piers E-1 and E02 ... |
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| State of the Art Reinforcement for Concrete Bridge Decks |
Feb-2009 |
21 pages |
| Authors:
Vincent Hock; Steven Sweeney; Orange Marshall; Phil Malone; ARMY CORPS OF ENGINEERS OMAHA NE PROTECTIVE DESIGN CENTER
|
| BACKGROUND: Deck corrosion is problematic and costly for vehicular bridges * The Army alone has more than 1,500 bridges on its installations, with the majority having reinforced concrete decks * FHWA Report RD-01-156 states that approximately one quarter of the direct cost of corrosion of bridges is maintenance and capital costs for concrete decks * FHWA studies have also found that indirect costs to the user due to traffic delays, ... |
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| Shear Stress Estimates for Combined Wave and Surge Overtopping at Earthen Levees |
Jan-2009 |
23 pages |
| Authors:
Steven A Hughes; Norberto C Nadal; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS COASTAL AND HYDRAULICS LAB
|
| The Coastal and Hydraulics Engineering Technical Note (CHETN) described herein provides empirical equations for estimating shear stresses on the land-side slope of earthen levees resulting from the combination of storm surge steady overflow and unsteady overtopping of irregular waves. A worked example provides guidance on application of the empirical equations.s |
|
| Computational Model of a Lock Filling System |
Jan-2009 |
17 pages |
| Authors:
Richard L Stockstill; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS COASTAL AND HYDRAULICS LAB
|
| This Coastal and Hydraulics Engineering Technical Note (CHETN) demonstrates the construction of a three-dimensional (3-D) computational flow model of a lock filling system. A numerical flow model capable of simulating flows in navigation locks will provide an economical tool for detailed evaluation of locks and lock components. A description of the construction, implementation, and evaluation of a 3-D model of a lock filling system is presented. Computational and hydraulic engineering ... |
|
| Sea Level Rise and Consequences for Navigable Coastal Inlets |
Jan-2009 |
8 pages |
| Authors:
Nicholas C Kraus; Julie D Rosati; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS COASTAL AND HYDRAULICS LAB
|
| Global sea level is expected to rise over the next 100 years. Changes in sea level will alter the functioning of coastal inlet navigation channels and structures such as jetties designed to stabilize the channel and improve navigability. Threats to navigation at stabilized coastal inlets and intercoastal waterways caused by sea-level rise are identified and discussed. Concerns for navigation include jetty flanking (overwash on the shoreward terminus of the jetty); ... |
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| Rapid Methods for Estimating Navigation Channel Shoaling |
Jan-2009 |
17 pages |
| Authors:
Nicholas C Kraus; Julie D Rosati; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS COASTAL AND HYDRAULICS LAB
|
| The US Army Corps of Engineers' navigation mission is to provide safe, reliable, and efficient waterborne transportation systems (channels, harbors, and waterways) for the movement of commerce, national security needs, and recreation. Federally maintained channels through as many as 600 coastal inlets and through bays, estuaries, and rivers are therefore dredged. Many of these navigation channels have been deepened, widened, and lengthened to accommodate larger vessels and greater transit speed, ... |
|
| Laboratory and Numerical Studies of Hydrodynamics Near Jetties |
Jan-2009 |
34 pages |
| Authors:
Zeki Demirbilek; Lihwa Lin; Hajime Mase; Jinhai Zheng; William C Seabergh; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS
|
| Numerical and physical modeling studies were performed by the Coastal Inlets Research Program (CIRP) of the U.S. Army Corps of Engineers to investigate the spatial and temporal behavior of waves and wave-induced currents near jetties of an idealized coastal inlet. Hydrodynamics were examined in the vicinity of two extreme types of jetty structure: a highly absorbing jetty (resembling fairly porous rock rubble structure) and a fully reflective jetty (resembling a ... |
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| Impact of Dike Structures on Sediment Transport in the Alluvial Rivers |
Jan 2009 |
6 pages |
| Authors:
Guohong Duan; ARIZONA UNIV TUCSON DEPT OF CIVIL ENGINEERING
|
| OBJECTIVES: The project has two components: one is to apply a computational model (EnSed2D) into a practical river engineering project in the Mississippi River, and the other is to collect laboratory experimental data for model verification, and to perform risk and uncertainty analysis of modeling results to explore uncertain parameters affecting the predictions. In particular, this project aims to conduct laboratory experiments of flow hydrodynamic and sediment transport around dikes. ... |
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| Environmental Aspects of Dredging: What About Air Quality? |
Jan 2009 |
11 pages |
| Authors:
Mark J Anderson; Brian D Barkdoll; CORPS OF ENGINEERS CHICAGO IL CHICAGO DISTRICT
|
| Dredging has historically been important for keeping the nation's waterways navigable, mining, and more recently for the removal of contaminants and restoring natural habitat. The placement of dredged material, re-suspension of sediments, and contaminated dredged material could all result in adverse environmental impacts. These impacts have all been, and are being, studied extensively. What has not been investigated, however, are the air emissions resulting from dredging operations. The incorporation of ... |
|
| Engineer: The Professional Bulletin of Army Engineers. Volume 38, PB 5-08-3/4, July-December 2008 |
Dec-2008 |
81 pages |
| Authors:
ARMY ENGINEER SCHOOL FORT LEONARD WOOD MO
|
| Engineer is prepared tri-annually by the United States Army Engineer School and the MANSCEN Directorate of Training, Ft. Leonard Wood, MO. |
|
| Recreation Visitor Survey Analysis - South Atlantic Division |
Dec-2008 |
49 pages |
| Authors:
LiChu Lee; Julie B Marcy; Christine Wibowo; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS ENVIRONMENTAL LAB
|
| This report documents a multi-year analysis (2004 partial 2007) of recreation visitor satisfaction results and comments for the South Atlantic Division of the U.S. Army Corps of Engineers. Information concerning socio-demographics, recreation area satisfaction, visitor center satisfaction and importance, and general comments were analyzed. This report conveys the findings and potential management implications thereof. |
|
| Barbers Point Harbor, Hawaii, Jetty Modification Study |
Nov-2008 |
179 pages |
| Authors:
Ivano Melito; Michael J Briggs; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS COASTAL AND HYDRAULICS LAB
|
| A series of laboratory experiments were conducted for a range of model ships, irregular waves, wave-induced longshore currents, and jetty lengths to optimize the length of a proposed entrance channel jetty at Barbers Point Harbor, Hawaii. Eleven jetty configurations were studied on both sides of the entrance channel, with lengths varying from no-jetty to the proposed 450-ft length. Unidirectional spectral waves with wave periods of 6, 10, 14, and 18 ... |
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| Infrastructure Rationalization in the U.S. Naval Ship Industrial Base |
Nov-2008 |
|
| Authors:
Scot A Arnold; Patricia F Bronson; Karen W Tyson; INSTITUTE FOR DEFENSE ANALYSES ALEXANDRIA VA
|
| Because of decreased demand for new ship construction the number of U.S. shipyards capable of handling new construction and conversion programs for the U.S. Navy decreased through the 1970s and 1980s. In 1993 the Defense Department established a policy to consolidate and rationalize (reduce infrastructure) within the defense industry in the face of the lower demand experienced following the end of the cold war. IDA looked at infrastructure rationalization in ... |
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| Perchlorate Contamination of Drinking Water: Regulatory Issues and Legislative Actions |
16-Oct-2008 |
|
| Authors:
Mary Tiemann; LIBRARY OF CONGRESS WASHINGTON DC CONGRESSIONAL RESEARCH SERVICE
|
| Perchlorate is the explosive component of solid rocket fuel, fireworks, road flares, and other products. Used heavily by the Department of Defense (DOD) and related industries, perchlorate also occurs naturally and is present in some organic fertilizer. This soluble, persistent compound has been detected in drinking water supplies, especially in California. It also has been found in milk and many foods. Because of this widespread occurrence, concern over the potential ... |
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| Critical Infrastructures: Background, Policy, and Implementation |
10-Oct-2008 |
|
| Authors:
John D Moteff; LIBRARY OF CONGRESS WASHINGTON DC CONGRESSIONAL RESEARCH SERVICE
|
| The nation's health, wealth, and security rely on the production and distribution of certain goods and services. The array of physical assets, functions, and systems across which these goods and services move are called critical infrastructures (e.g., electricity, the power plants that generate it, and the electric grid upon which it is distributed). This report discusses in more detail the evolution of a national critical infrastructure policy and the institutional ... |
|
| Desalination Technology Waste Streams: Impact of pH and Brine on Bacterial Metabolism Among Natural Marine Assemblages |
10-Sep-2008 |
16 pages |
| Authors:
M T Montgomery; T J Boyd; C L Osburn; R E Plummer; R B Coffin; NAVAL RESEARCH LAB WASHINGTON DC CHEMICAL DYNAMICS AND DIAGNOSTICS BRANCH
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| Hydrate formation-based techniques have been proposed as desalination technologies for transforming seawater into potable water. Marine Desalination Systems (MDS) is currently developing new technology in gas hydrate formation to supply potable water using hydrocarbon gas-based hydrate crystals (Kubota et al. 1984). The MDS technology might change the natural bacterial assemblage in primarily two ways: metabolic rate (secondary production) and assemblage composition. This influence on the microbial assemblage can affect ecosystem ... |
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| Technical Guidelines for Environmental Dredging of Contaminated Sediments |
01-Sep-2008 |
302 pages |
| Authors:
Michael R Palermo; Paul R Schroeder; Trudy J Estes; Norman R Francingues; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS ENVIRONMENTAL LAB
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| This report provides technical guidelines for evaluating environmental dredging as a sediment remedy component. This document supports the Contaminated Sediment Remediation Guidance for Hazardous Waste Sites, released by the U.S. Environmental Protection Agency (USEPA) in 2005, by providing detailed information regarding evaluation of environmental dredging as a remedy component. This document is intended to be applicable to contaminated sediment sites evaluated under various environmental laws and regulatory programs. The intended ... |
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Civil Engineering
