Download or read book Dredging Operations Technical Support Program Evaluation of Clamshell Dredging and Barge Overflow Military Ocean Terminal Sunny Point North Carolina written by Michael R. Palermo and published by . This book was released on 1990 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 1987 maintenance dredging for the Military Ocean Terminal, Sunny Point (MOTSU), project was performed by mechanical clamshell dredge, with material placed in barges and transported to an open-water ocean disposal site. This work was the first major use of mechanical clamshell equipment in North Carolina. Since resource agencies were concerned with operational procedures for clamshell dredges from the standpoint of potential resuspension of sediment during the dredging process and overflow of barges to increase load, a field study was conducted to give site-specific information on the MOTSU clamshell operation. Barge loading characteristics for both overflow and nonoverflow conditions and potential gain in load due to overflow were determined for three barge loads. The load gained during the period of overflow varied from 1.4-3.2%, with corresponding times of overflow from 9 to 28 min. The load gained by filling the disposal barge in one test from a level 1 ft below the coaming to the point of overflow was approximately 6.9%. This, added to the load gained during overflow, corresponded to a total increase in load of 10.1% for this test. The suspended solids concentration of the overflow increased with time of overflow. Plumes from the clamshell bucket spillage were observed to be patchy in nature, were advected downcurrent, and mixed with the ambient water downstream. At this site, suspended sediment levels observed during dredging and overflow probably did not produce any significant adverse environmental effect upon eggs, larvae, juveniles and adult forms of estuarine-dependent fish and shellfish species. (edc).
Download or read book Evaluation of Clamshell Dredging and Barge Overflow Military Ocean Terminal written by Michael R. Palermo and published by . This book was released on 1990 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Clamshell Dredging and Barge Overflow Military Ocean Terminal Sunny Point North Carolina Final Report written by and published by . This book was released on 1990 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1990 with total page 1180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dredging Operations Technical Support Program Engineering Design and Environmental Assessment of Dredged Material Overflow from Hydraulically Filled Hopper Barges in Mobile Bay Alabama written by and published by . This book was released on 1990 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: Barge overflow was investigated as a cost-effective option for future dredging needs in Mobile Bay, Alabama. Tests of hopper barge loading characteristics with overflow operations were conducted in Mobile Bay. In theory, overflow would allow denser materials to settle within the barge while less dense materials were shunted overboard. Increased density of barge-held materials would then translate to cost savings via a reduced requirement for transport to a distant approved disposal site. Thus, one major objective of the study was an engineering evaluation of equipment performance during the tests. A second major objective was to obtain field data for an assessment of the environmental consequences of overflow. In support of both objectives, modeling studies were performed to simulate overflows that would be associated with routine dredging operations. Eight separate tests were conducted. Three tests occurred at a site in lower Mobile Bay, and five tests at an upper bay site. Three tests (one lower bay, two upper bay) involved dredging in maintenance materials, and five tests (two lower bay, three upper bay) involved new work or deepening materials.
Download or read book Sunny Point Military Ocean Terminal Maintenance Dredging Brunswick County written by and published by . This book was released on 1972 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1991-05 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Maintenance Dredging of Basins and Channels at Military Ocean Terminal Sunny Point Southport North Carolina written by and published by . This book was released on 1972 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Annual Index written by and published by . This book was released on 1990 with total page 1608 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1990 with total page 1180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hydrogeologic Studies Dredging Disposal Areas 2 and 5 Military Ocean Terminal Sunny Point North Carolina written by James D. Crabtree and published by . This book was released on 1983 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Engineering and Design written by United States. Army. Corps of Engineers and published by . This book was released on 1983 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1992 with total page 1236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalogue United States Public Documents written by and published by . This book was released on 1992-11 with total page 1388 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Improvements to Navigation Basins and Entrance Channels Military Ocean Terminal Sunny Point North Carolina written by Philip M. Payonk and published by . This book was released on 1995* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sediment Budget Study for Clamshell Dredging and Disposal Activities written by John F. Tavolaro and published by . This book was released on 1982 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dredging Operations Technical Support Program Evaluation of the 1980 Capping Operations at the Experimental Mud Dump Site New York Bight Apex written by J. M. O'Connor and published by . This book was released on 1983 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of the project was to assess the potential for placing a cap at the experimental Mud Dump site and to determine reductions in environmental impacts related to capping. Contaminated sediment from dredging projects in the Hudson Estuary, Newark Bay, and contiguous waters were capped first with fine sediments from the Bronx River and Westchester Creek, then with sand from the Ambrose Channel. The capping resulted in a layer of sand about 1m thick lying atop the contaminated sediment. Physical, chemical and biological studies were carried out to determine if the capping effort yielded an intact cap showing resistance to erosion, and if the effort reduced loss of organic and inorganic toxicants from the contaminated material to the water column. It was determined that a cap was successfully placed at the experimental dump site. The cap was still intact and in place after 16 months. Cap erosion was minor; predictions of cap life were in excess of 20 years under normal meteorological conditions. Major storm events, however, are capable of eroding the cap and exposing the contaminated material. During the 16 months of study, the contaminated material decreased in volume by about 4%. Part of the decrease was due to compaction and part was due to loss of solids during dumping and deposition.
