Development and Application of a Decision Support System for Municipal Water Infrastructure Planning: Challenges and Successes
Many water utilities across the country continue to face the challenge of intelligent planning for cost effective, efficient operation, larger demands, stricter government regulations,...
Natural Tracers of Coastal Sediments
The properties of natural sediments can be used to determine their sources and to trace their transport paths through coastal environments. These properties include the mineralogies of...
Evaluating Alternatives for Capacity Expansion: Ensuring Reliable Water for the Portland, Oregon, Area
(No paper) The Portland Water Bureau is currently evaluating its water supply expansion alternatives. Like many water bureaus responsible for supplying water to both in-city customers...
ASR Case Study?City of Salem, Oregon
The City of Salem, Oregon is developing an Aquifer Storage and Recovery (ASR) system to provide a 20 mgd capacity, 440 mg volume, emergency storage and peak day supplementary supply. When...
Water 2050-Supply for the Portland, Oregon Metropolitan Region Using the Integrated Resource Planning Process
This paper presents information about the long range regional water supply planning work that is being conducted in the Portland, Oregon metropolitan region. An integrated resources planning...
SCADA System Controls Combined Sewer Overflow Regulation System to Optimize Wastewater Collection
The Metropolitan St. Louis Sewer District's Overflow Regulation System (ORS) project uses computer control of a wastewater collection system for the purpose of combined sewage overflow...
Pen Computers in Civil Engineering
Multnomah County, Oregon has developed 'field-to-office' automation systems incorporating pen computers as a data collection tool. This technology was integrated into civil engineering...
Field Performance of an Acoustic Scour-Depth Monitoring System
The Herbert C. Bonner Bridge over Oregon Inlet serves as the only land link between Bodie and Hatteras Islands, part of the Outer Banks of North Carolina. Periodic soundings over the past...
Columbia River Basin Fish and Wildlife Program Strategy for Salmon
Three species of Snake River salmon have been listed as threatened or endangered under the federal Endangered Species Act. In response, the Northwest Power Planning Council worked with...
Seasonal Water Quality Management Given Sparse Data
An approach for designing robust seasonal water quality management programs for river basins with sparse or short flow records is presented. This approach uses Markov chain modelling and...
Price Elasticity and Conservation Potential
Water conservation programs usually contain pricing incentives for users to limit water consumption. This analysis uses data from the Portland, Oregon water system as an example of both...
The PULSEQUAL Model: Using Combinations of Simple Mathematical Equations to Evaluate Complex Storm Effects on Water Quality
Storm discharges (stormwater and combined sewer overflows) have transient and highly variable impacts on receiving waters. Simple water quality equations have been developed to accurately...
Effect of Future High Speed Ground Transportation on Airport Expansion Needs in the State of Washington
A high speed ground transportation system is proposed to be built in the State of Washington to connect all regions. The proposed system will be approximately 700 miles in length and would...
Streambank Inventory and Protection Soldotna Reach, Kenai River, Alaska
This paper discusses bank conditions found along the Kenai River within the city of Soldotna in Alaska. River banks were inventoried in May 1990 by USDA Soil Conservation Service (SCS)...
Northwest Coastal Strategy
The activities of the Coastal AMerica Northwest Regional Implementation Team are discussed. The Coastal America northwest demonstration project, wetlands restoration in the Duwamish River...
Dealing with TMDLs in the Dairy-McKay HUA
The maximum phosphorus concentration for the TMDL in the Tualatin River is set by Oregon Administrative Rules (OAR) at 0.07 mg/1, Dairy-McKay Creek is 0.045 mg/1 Identification of potential...
Sand Management Planning in Oregon
Under Statewide Planning Goal 18 dune grading or sand movement necessary to maintain views or prevent sand inundation is allowed only as part of an area-wide foredune management plan....
A Strategy for Improving Coastal Natural Hazards Management: Oregon's Policy Working Group Approach
In recent years there has been growing concern over the inadequacies in coastal natural hazard mitigation policies and implementation efforts in Oregon. These concerns have been increased...
Assessing Coastal Bluff Erosion Along the Oregon Coast Using Available Materials
This pilot study was initiated by Oregon's Department of Geology and Mineral Industry (DOGAMI) in an effort to determine erosion rates applicable to the coastal bluffs of Oregon's shoreline....
Development of an Isohyetal Analysis for Oregon Using the Prism Model
PRISM (Precipitation-elevation Regressions on Independent Slopes Model) is an analytical model that uses point data and a digital elevation model (DEM) to generate gridded estimates of...
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