McNary Powerhouse Generating Unit 14 Stator Core and Winding Replacement
The powerhouse contains 14 main generating Kaplan-blade units, each rated at 73,684 kVA at 0. 95 power factor. In early 1985 the decision to rewind and uprate Unit 14 was being finalized....
Evaluation of Cores From Two RCC Gravity Dams
Galesville Dam, Oregon, completed in August 1985, and Upper Stillwater Dam, Utah, completed in August 1987, are two RCC (roller compacted concrete) gravity dams featuring different approaches...
Construction of Elk Creek Dam
Construction of Elk Creek Dam, located in Southwest Oregon, is currently underway with completion scheduled for September 1988. The main dam contract was awarded to Ohbayashi Gumi Ltd....
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...
The Oregon Coast Aquarium ? A Case Study
The Oregon Coast Aquarium, to be located in Newport, OR. , has been carefully developing over the past five years. Proposed as a coastal interpretive center, it will trace a water droplet...
Comparing Coastal Spheres in Oregon and Washington
This paper introduces the concept of a 'coastal sphere' and illustrates its use by applying it to two such spheres located in the Pacific Northwest. A sphere...
Stabilization of West Coast Sand Dunes
Control of dune activity and the introduction of European beachgrass have generated far-reaching effects on the West Coast landscape. Between 1900 and 1935, a series of small sand stabilization...
Foredune Management on a Developed Shoreline: Nedonna Beach, Oregon
Nedonna Beach and Rockaway Beach are adjoining oceanfront communities with foredunes that were developed before state policies went into effect. The foredunes in these two communities...
Resolving Permit Conflicts in Oregon's Coastal Zone
Oregon has a complex system of federal, state and local government agency planning and permitting in its coastal zone. The policies, standards and permits of these agencies frequently...
State-Federal Gorda Ridge Task Force as a Conflict Resolution Mechanism
In 1983 the Minerals Management Service of the U. S. Department of the Interior proposed leasing of a large submerged area off Oregon and California for polymetallic sulfide mining. The...
Optimum State Strategies Regarding Oil and Gas Exploration and Development on the Outer Continental Shelf
In anticipation of the federal oil and gas lease initiative, the Washington Department of Ecology selected the consulting firm Cogan, Sharpe, Cogan of Portland, Oregon to conduct an OCS...
Geomorphology, Convergent Margins and Earthquakes
Underthrusting along convergent plate margins, is commonly accompanied by the occurrence of shallow focus, large magnitude thrust earthquakes ( greater than magnitude 7. 5). In the subduction...
Territorial Sea Management by the State of Oregon
The institutional capability of the State of Oregon to manage the territorial sea under its jurisdiction recently was examined by the authors. Oil and gas development, marine mineral mining,...
Developing Findings of Fact for a Hazard Mitigation and Preparedness Plan for the City of Waldport/Alsea Bay Area, Lincoln County, Oregon
Marine erosion attributed to the effects of the 1983 El Nino resulted in the loss of the distal tip of Alsea Spit in 1985 enlarging Alsea Bay inlet by 300% and subjecting the City of Waldport...
Numerical Modeling of the Coastal Current Regime at Yaquina Bay, Oregon
The application of a family of hydrodynamic numerical models for simulating tidal and wave-induced currents at Yaquina Bay, Oregon, is described. An overview of four numerical models is...
Tiered Sediment Quality Evaluations for Dredging Projects
Sediment and water quality are evaluated frequently for U. S. Army Corps of Engineers (CoE) dredging projects to assess potential biological effects, as required for compliance with environmental...
Restoration of a Construction-Scarred Dune
The rehabilitation and extension of the north and south jetties at the entrance to Siuslaw River required the contractor to stockpile jetty stone in nearby surge piles in order to maintain...
Implementation and Management of a High Technology Irrigation System
Eastern Oregon Farming Company (EOFC) irrigates 12,000 acres using a fully pressurized irrigation system. In 1981, the system was operated with minimal flow and pressure measurements and...
Subsurface Drainage for Erosion Reduction on Croplands of Northwestern Oregon
Subsurface drains installed as a relief system on sloping cropland reduced surface runoff and soil loss from silty soils with underlying slowly permeable layers in northwestern Oregon....
Utilization of Geographic Information Systems Technology in the Assessment of Regional Ground-Water Quality
The U. S. Geological Survey (USGS) in cooperation with the U. S. Environmental Protection Agency Office of Pesticide Programs and several State agencies in Oregon has prepared a digital...
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