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The Scour at Bridges Management Program in Rhode Island
The Rhode Island Department of Transportation (RIDOT) has developed and implemented a comprehensive two-phase scour susceptibility program for screening and assessment of scour at bridges....

Feasibility of Modeling Phosphorus Dynamics in Stormwater Wetlands
This research, underway at the University of Guelphs School of Engineering, studies the feasibility of modeling phosphorus assimilative capacity by stormwater wetlands in cold climates....

Santa Ana River Salt Marsh Restoration: Orange County, California, U.S.A.
As part of the All-River Plan of the Santa Aria River, the 92 acre Santa Ana River Marsh (Marsh) was constructed at the Pacific Ocean outlet in Orange County, California. This project...

Design and Implementation of a Multi-Faceted Site Remediation
This technical paper presents a case history of the design, construction, and start-up of a multi-faceted site remediation system. The case history includes a description of the site background,...

Comparison of Methods for Sizing Secondary Treatment Filters for Wastewater
The trickling filter process in which a bacterial biomass is allowed to grow attached to a filter medium of rock or plastic is effectively used for removal of organic materials in domestic...

Denitrification of Ground Water/Waste Water using the Aquacel System
Within the United States there are vast reserves of ground water which are no longer suitable for drinking because of high concentration (> 10 mg/l NO3-N) nitrates. Furthermore,...

The Reclamation Drought Index: Guidelines and Practical Applications
Drought is a familiar occurrence that lacks the drama and immediacy of other natural disasters such as hurricanes, floods, and earthquakes, but the economic repercussions can be equally...

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...

A Surface Collection Design Approach on the Lower Columbia River
Surface collection and bypass of downstream migrating juvenile salmon has the potential to help improve the survival of the Columbia River salmon population. However, surface passage on...

Surface Bypass-Collector Concepts and Performance
Surfacetype bypass collectors and concepts are described. Biological and engineering requirements to pass juvenile salmonids at Snake?Columbia River dams are presented. The components,...

Advanced Seawater Desalination Plant
A project that will demonstrate an enhanced seawater desalination process that operates in combination with upgraded existing coastal power plants to meet part of the projected water needs...

Groundwater Monitoring For a Tunneling Project
The Groundwater Monitoring and Management Plan, developed for the proposed tunnel reaches between Devil Canyon and City Creek, monitors and manages selected water resource features within...

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...

The Secondary Inlet of the Eastside Pipeline Project
The subject of this paper is a design feature included in the current capital improvement program of the Metropolitan Water District of Southern California. This feature, the Secondary...

Impact of Sedimentation Caused by Runoff
As water is pumped into a reservoir, sedimentation caused by runoff can be an important factor in the reservoir's storage capacity. This report discusses various studies conducted...

Concept Ecology Integrated Project Engineering and Environment; Relating a Project to the Surroundings
The selected alignment of the 27.3 km long Veterans Expressway in Tampa, Florida was constructed for better access to the downtown area from a relatively rural but fast growing area of...

Risk Analysis of Drinking Water Treatment and Supply Facilities Handling Highly Hazardous Chemicals
Due to increasing public concern of risks from handling highly hazardous chemicals at various facilities, a number of state regulatory agencies, including the State of California, have...

Production of Nitrous Oxide Gas under Sequencing Batch Reactor System
N₂O, like CO₂, H₂O, and CH₆,...

Fluidized Bed Denitrification of Secondary Effluent during Wastewater Reclamation in Southern California
A pilot scale fluidized bed denitrification bioreactor was operated for a period of three years as one unit process in a series designed to repurify secondary effluent for subsequent indirect...

Optimal Geometric Shape of a Surface Aeration Tank
This paper presents the results of a laboratory investigation on three cross-sectional shapes?square, rectangular and circular of surface aeration tanks, without any baffles, to find out...

 

 

 

 

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