Tunneling Under Pressure
Work will begin this month on the South Bay Ocean Outfall (SBOO) project, a $140 million undertaking to build 3.6 mi of tunneling through the saturated ground of the Pacific Ocean. When...
Small Firms, Big Challenges
Does it pay to be small? Though many small engineering firms find strength in their size, others are hampered by limited resources and a specialization that diminishes their client base....
Telling Florida's Water Story
The latest addition to the nation's family of aquariums is Tampa's recently completed Florida Aquarium. The $84 million 152,000 square foot cast-in-place concrete...
Lining the Line
Having succeeded in achieving dry stations and tunnels in mined construction, flexible waterproofing membranes are now being used to waterproof cut-and-cover subway stations and old, leaking...
Perfecting Bridge Inspecting
The Massachusetts Highway Department has improved the safety of its bridges and increased its productivity by using networked multimedia to gather and store a variety of data about bridges...
Bridge Over the River Karnali
Just as topping Nepal's Mount Everest requires great stamina from mountain climbers, building the Karnali River Bridge in a remote region of western Nepal required six years...
A User's Guide to Federal Architect
Engineer Contracts
The
VOC Inventory at New York City Wastewater Treatment Plants
Although the New York State Clean Air Act Amendments of 1990 (CAAA) implementation plan is not yet in place, the Citys Department of Environmental Protection (DEP) is taking a proactive...
Evaluation of Sampling Properties of General Extreme Value (GEV) Distribution-L-Moments Vs Conventional Moments
The sample estimates of conventional moments are shown to be biased and this bias increases for small samples, and especially so when the skewness is high (Wallis et al., 1974). The recently...
Hydraulic and Engineering Considerations in Designing Constructed Treatment Wetlands for a Lake Restoration
A 12,600 ha (31,000 acre) hypereutrophic lake in central Florida is being restored by constructing a 2,020 ha (5,000 acre) wetland filter to remove suspended sediments and particulate...
FLODRO 2.0: A User Friendly Personal Computer Package for Flood and Drought Frequency Analyses
The use of personal computers have changed dramatically the way to perform several studies related with hydrological problems. The increased capabilities of the current generation of personal...
Santa Clara River Fluvial Analysis
The Santa Clara River watershed, located in Los Angeles County, has been subject to rapid increases in population and urban development, resulting in channelization, new bridges, and increased...
Genetic Algorithm Design of Piped Irrigation Systems
The design of piped irrigation systems is a complex matter. In its simplest form it involves the selection of the sizes of pipes and other hydraulic elements so as to ensure that the varying...
A Regional Management Plan to Improve Water Quality in the Grassland Basin
Seven irrigation and drainage districts on the west side of Californias San Joaquin Valley have formed a regional drainage entity to implement programs that will reduce the load of selenium...
Value Engineering Changes to the Eastside Pipeline
Value Engineering is a process of applying analytic, creative and evaluative techniques to a project in order to make recommendations that will, when implemented, maximize value and quality...
Rehabilitating Arctic Tundra in Alaska
During the past 25 years, there has been significant progress in tundra rehabilitation. Initially, agronomic practices requiring large quantities of grass seed and fertilizer were believed...
Application of the Newton Method in Valve Discharge Coefficient Relationships
This paper presents a methodology that utilizes the Newton Method to compute the dimensionless valve discharge coefficient Cd from a manufacturers valve discharge coefficient Cv. The implicit...
Development of a Regional Atmospheric-Hydrologic Model for the Study of Climate Change in California
An integrated model of atmospheric and hydrologic processes at regional scale over California has been developed in order to translate the large scale atmospheric conditions of critical...
Experimental Uncertainty and Measurement Errors in Hydraulic Engineering
The Task Committee on Experimental Uncertainty and Measurement Errors was formed to provide information and guidance on current practices used for describing and quantifying measurement...
Coastal Engineering Laboratory and Field Measurements: Some Uncertainties in Measurement
In this paper two examples of uncertainties which can occur in field measurements and measurements in coastal engineering models are examined. These examples are chosen to demonstrate...
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