Knowledge Core Collection:https://hdl.handle.net/11681/468222024-03-29T07:16:19Z2024-03-29T07:16:19ZElements of floating-debris control systemsPerham, Roscoe E.https://hdl.handle.net/11681/455032023-04-06T16:18:10Z1988-09-01T00:00:00ZTitle: Elements of floating-debris control systems
Authors: Perham, Roscoe E.
Abstract: Floating debris is a continual problem for all users of water bodies. It is destructive to locks, dams, bridges, electric plants, municipal water systems, and even recreational boaters. Wetlands, fish-spawning grounds, and streambanks can be disturbed by debris. This report contains a summary of the various methods for collecting, controlling, removing, and disposing of floating debris.
Description: Technical Report1988-09-01T00:00:00ZCondition and performance rating procedures for nonrubble breakwaters and jettiesPirie, Douglas M.Foltz, Stuart D.McKay, David T.Plotkin, Donald E.Kubinski, Josephhttps://hdl.handle.net/11681/262772024-03-13T18:45:41Z2005-11-01T00:00:00ZTitle: Condition and performance rating procedures for nonrubble breakwaters and jetties
Authors: Pirie, Douglas M.; Foltz, Stuart D.; McKay, David T.; Plotkin, Donald E.; Kubinski, Joseph
Abstract: Within the REMR program is a group of projects dedicated to the development of computerized maintenance management systems for coastal and waterway navigational structures. The general intent of these REMR Management Systems is to provide maintenance managers at all levels with tools to promote easier and more effective maintenance and budget planning. One objective of these REMR Management Systems is to create uniform procedures for assessing the condition of structures, and further to create assessment methods which will allow the condition of structures, and their parts, to be expressed numerically to take best advantage of the benefits available from the use of microcomputers in maintenance management. This “numerical language” for ex-pressing the condition of facilities is the Condition Index (CI). For coastal structures, the CI is determined from a Functional Index (FI) and a Structural Index (SI). The FI indicates how well a structure (or reach) is performing its intended functions, while the SI for a structure or structural component indicates its level of physical condition and structural integrity. This report describes a procedure for evaluating the condition and performance of coastal structures and for determining CI values.2005-11-01T00:00:00ZIce control techniques for Corps projectsHaynes, F. DonaldHaehnel, Robert B.Clark, Charles H.Zabilansky, Leonard J.https://hdl.handle.net/11681/259692024-03-13T14:46:55Z1997-09-01T00:00:00ZTitle: Ice control techniques for Corps projects
Authors: Haynes, F. Donald; Haehnel, Robert B.; Clark, Charles H.; Zabilansky, Leonard J.
Abstract: This investigation was performed by the U.S. Army Cold Regions Research and Engineering Laboratory for Headquarters, U.S. Army Corps of Engineers. The overall objective of the study was to provide much more efficient methods for controlling and removing ice at locks and dams. Twelve serious ice problems at locks were identified, the most severe being ice accumulation in the miter gate recess. Fifteen ice problems around dams were identified, the most severe being ice accumulation upstream of a dam. The most common method of dealing with ice problems has previously been chipping the ice off, a labor-intensive, time-consuming, and hazardous practice. Other more efficient and more effective methods such as air bubbler systems and panel heaters were studied herein. The rationale has been to prevent ice from forming, or, if this is not possible, provide efficient, economical solutions. Future research should focus on optimizing panel heater size and power requirements in problem areas for ice buildup. Also, additional work should be done with bubblers and water cannons for moving ice.
Description: Technical Report1997-09-01T00:00:00ZInspection and control of levee underseepage during flood fightsCunny, Robert W.https://hdl.handle.net/11681/223672023-04-06T16:20:43Z1987-09-01T00:00:00ZTitle: Inspection and control of levee underseepage during flood fights
Authors: Cunny, Robert W.
Abstract: Abstract: This study was conducted in response to a problem definition workshop held in April 1984 for the Repair, Evaluation, Maintenance, and Rehabilitation (REMR) Research Program Work Unit No. 32274, "Rehabilitation Alternatives to Control Adverse Effects of Levee Underseepage." The following research need was determined to have one of the highest priorities: Emergency flood fight guidance for observing underseepage and employing remedial actions. Documented in this report are the basic levee inspection responsibilities and flood fighting techniques of the Mississippi River Valley Districts (Rock Island, St. Louis, Memphis, and Vicksburg) and the Levee Boards. The need for a consistent terminology for the severity of underseepage, better flood fight training for young engineers, and better mobility for inspection were the main problems identified in this report. The following terminology is recommended as a standard to describe the severity of underseepage: Light - area is wet.; Moderate - running water is observed.; Heavy - pin boils (small pipe openings without sand cones) with running water.;
Sand boils - any pipe opening with sand cones.; Large boils - sand boils with pipe openings 12 inches or more in diameter (size described by diameter of pipe opening). Personnel interviewed, documents collected from CE District offices, and a list of questions related to inspection for underseepage during floods are included in Appendices A, B, and C, respectively.
Description: Technical Report1987-09-01T00:00:00Z