Rigid-Lid Flow Calculations with MacCormack's Method
R.W. MacCormack's Method is employed for the calculation of subcritical flow in shallow water. The flow is assumed to be incompressible with rigid boundaries above and below,...
The Role of a Mobile Transporter in Large Space Structures Assembly and Maintenance
Large space structures require a vehicle to support assembly, operations, and maintenance. These vehicles may be designed for specific tasks or for general use throughout the life of the...
Survey of Soviet Space Welding Technology Development
Soviet engineers clearly recognize the potential value of welding for maintenance, repair, and fabrication of structures in space. The development of this technology has followed a steady...
The Role of Welding in Space Maintenance and Repair
The nature of future space missions will result in increased incidence of degradation, damage, and wear of critical or expensive hardware. In many terrestrial applications welding provides...
New Roads for the Micro
Using microcomputers loaded with database software and Fortran programming, engineers are gaining control of pavement maintenance. A number of factors, from urban sprawl to constricting...
Recycling Bridges
Faced with the statistics showing that more than half of our bridges have fallen into a state of disrepair, bridge engineers have coined a phrase from the lexicon of conservationists to...
What Will Happen to Local Rural Roads and Bridges
Much of the local rural road and bridge system was not designed for the heavy trucks and farm equipment that are currently using the system. The system will continue to deteriorate unless...
Operation and Maintenance of Recharge Facilities
As part of its Water Resources Program, the Santa Clara Valley Water District manages the groundwater basins in Santa Clara County, California. The article describes the operations and...
Manhole Junction Flow
When a sewer surcharges, a basement floods, or sewage overflows, the likeliest source of the problem is sewer junction manholes. Poorly designed ones act as bottlenecks. Study of a few,...
Design Considerations for a Navigational Channel
The hydraulic feasibility of the proposed navigation channel from Shuwaikh to the offshore area in Sulaibikhat Bay was studied. Channel width and alignment were determined considering...
Navigation Problems in Upper Cook Inlet, Alaska
The Alaska District, Corps of Engineers and the Waterways Experiment Station are investigating navigation problems including tidal currents, sedimentation, and regional transportation...
Maintaining the Gateway to the Columbia Basin?A Plan for Improvement
Portland District has begun a Maintenance Improvement Program to recommend procedures to reduce annual operations and maintenance costs while providing safe and efficient ship passage...
Sand Bypass System at Oceanside, California
This paper describes the design and development of an experimental sand bypassing and channel maintenance system using jet pumps and fluidizers. The system was developed as a possible...
Dune Building on a Developed Coast: Lavallette, NJ
After the Federal disaster declaration due to the March, 1984 northeast storm, FEMA's Interagency Hazard Mitigation Team recommended to the Municipality that it suspend the...
Trends in Funding and Ties to Solutions in Florida
The most prevalent type of grant projects funded by the National Oceanic and Atmospheric Administration (NOAA) through the Florida Coastal Management Program were management-related plans....
Maglev: Transportation for the 21st Century
If cities are to achieve their full potentials as economic and cultural centers, they must possess superior transportation systems. Ultra-silent, energy efficient, non-polluting magnetic...
Beach Restoration Criteria Based on Algae Hydrodynamics
The presence of algae might aggravate the already existing difficulties in beach restoration. The aim of this paper is to present additional beach restoration criteria based on algae hydrodynamics...
Infrastructure
Repairs and Inspection
Rehabilitation of a structure in general requires considerations of unique methods of inspection and repair. Since the structures have to remain in service while the repairs are done,...
Historic Bridges: Conflict Ahead
The engineer who deals with historic bridges becomes the focus of controversy in the course of determining the existing condition, predicting remaining useful life, and designing the repair...
Maintenance of Automated Pumping Plant Controls
Westlands Water District, located in the Central San Joaquin Valley in California (Fig. 1) includes over 600,000 acres of agricultural land and is part of the San Luis Unit of the U. S....
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