Ground Water Management: Los Angeles Coastal Plan
In the early 1950s sea water intrusion became a serious problem and led to adjudication of the ground waters and the construction of an injection barrier to sea water intrusion. The general...
Implementation of Habitat-based Evluations: Issues and Solutions
Since 1974, the US Fish and Wildlife Service has been developing a habitat-based evaluation methodology entitled Habitat Evaluation Procedures (HEP). The Los Angeles District's...
Fish Histopathology and Contamination in California's Channel Islands
Ocean dumping of certain hazardous wastes took place at two dumpsites in the San Pedro Channel of the Southern California Bight from the 1940s through the 1960s. This included some 700...
Wetland Restoration and Port Development: The Batiquitos Lagoon Case
Batiquitos Lagoon in San Diego County, California was once a fully tidal lagoon system. Since American settlement of the area, sediment has filled the lagoon, fills for road crossings...
The Santa Ana River Flood Forecasting System
A real-time flood forecasting and reservoir operations simulation system has been developed for the Santa Ana River Basin, located in southern California. The system consists of generalized...
The Pacific Texas Pipeline Project?Deepwater Oil Terminal, Port of Los Angeles
This paper describes the implementation program and status of the Pacific Texas Pipeline Company project in the Port of Los Angeles. A brief description of this important 1. 6 billion,...
Prestressed Concrete Piling?Design vs. As-Built
The proper design, manufacture, handling and installation of prestressed concrete piles is essential to their structural integrity and long life. A quality control program must be designed...
Container Wharves Supported on All Vertical Piles Embedded in Rock-Fill Dikes
In recent years, several container wharves have been planned and/or constructed which feature the construction of the wharf over a sloping rock-fill dike. The wharves utilize all vertical...
Los Angeles and Long Beach Harbors Tidal Circulation Study
Expansion of harbor facilities frequently involves placement of additional landfill and the deepening of channels and mooring areas. A numerical tidal circulation model was used in the...
Marginal Wharf and Embankments?Seismic Design
This paper presents some of the seismic considerations used for the improvements at Berths 225 to 229 at the Port of Los Angeles. The design of the improvements was complicated by the...
Controlling Sulfide Corrosion in Large Diameter Gravity Sewers (
The County Sanitation Districts of Los Angeles County undertook a major evaluation of sewer system ranging in size from 1. 22 to 3. 65 meters in diameter that transports peak wastewater...
Engineering Methodology for Delineating Debris Flow Hazards in Los Angeles County
Utilizing historical and field data, elementary geomorphology and simplified hydraulics of debris flows, a mapping strategy has been developed. The delineation procedure includes defining...
Design and Construction of TCE/PCE Removal Facilities
This paper presents a review of the design and construction of a facility in Arcadia, California, to remove trichloroethylene (TCE) and tetrachlorethylene (PCE) from groundwater. The City...
Flood Control, Water Conservation, and Urban Change
Los Angeles County has one of the largest, most complex and effective systems of flood control and water conservation facilities in the United States. It includes 14 major dams, 125 debris...
Unique Flood and Drainage Problems in Los Angeles
Storm drainage for the coastal cities has to traverse highly used sandy recreational beaches. Due to new requirements on the construction of storm drains to the ocean, a beach outlet has...
Owens Valley, California Basin Management to Meet Both Water Resources and Environmental Goals
The City of Los Angeles imports over 60 percent of its water supply from the Owens River Watershed as part of the resources used in serving 3. 5 million people. As part of this operation,...
Organization for Construction of a Rail Transit Project
The Long Beach-Los Angeles rail transit project is part of an on-going transit development process by the Los Angeles County Transportation Commission (LACTC) in which the Long Beach-Los...
Budget and Schedule Control?The Critical Issues
The increase of activity together with often difficult budgets and schedules in busway and rail transit projects since 1960, has made the processes of project control for these projects...
Los Angeles Infiltration/Inflow Reduction Program
The City of Los Angeles maintains and operates two wastewater collection and treatment systems: the Hyperion System and the Terminal Island System. During the wet months of December through...
Program for Control of Petroleum Refinery Wastewater
The Sanitation Districts of Los Angeles County (LACSD) provide wastewater treatment services to approximately four million residents and eight thousand industrial companies. Large and...
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