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Filtering by: Siletz River Estuary, Oregon, United States Remove constraint Siletz River Estuary, Oregon, United States Academic Affiliation School of Civil and Construction Engineering Remove constraint Academic Affiliation: School of Civil and Construction Engineering Degree Field Civil Engineering Remove constraint Degree Field: Civil Engineering

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  • Data Assimilation using Synthetic-Aperture Radar Imagery for Bathymetry Inversion at the Mouth of the Columbia River

    Creator:
    Harper, Spencer H.
    Abstract:
    Synthetic-aperture radar (SAR) imagery can provide wavenumber and frequency data to generate bathymetry estimates for locations where limited access or extreme ocean conditions can make standard bathymetry survey techniques difficult or impossible. The availability of SAR data could allow for regular bathymetry estimates of navigational channels providing insight into dredging...
    Resource Type:
    Masters Thesis
    Full Text:
    Northwest of the United States, where the Columbia River outlets to the Pacific Ocean. The Columbia River

  • The review of PPP toll roads in the US and the simulation of the Chicago Skyway

    Creator:
    Xu, Wei
    Abstract:
    As the traffic demand increases at a faster rate than the upgrade and maintenance of transportation facilities through the traditional public financing methods in the United States, the Public-Private Partnership (PPP) is becoming an important supplement to the public transportation infrastructure investment. There are already several existing PPP toll road...
    Resource Type:
    Masters Thesis
    Full Text:
    IRR, the more private profit they must share with the public. In the United States, the Texas State

  • Fate of THMs in Columbia River basalts during aquifer storage and recovery

    Creator:
    Bertrand, Danelle
    Abstract:
    Use of basalt aquifers for aquifer storage and recovery (ASR) systems is increasing in the Pacific Northwest due to the large aerial extent of the Columbia River Basalt Group and the suitability of basalts as ASR reservoirs. However, the degradation of trihalomethanes (THMs), potentially carcinogenic disinfection by-products present in the...
    Resource Type:
    Masters Thesis
    Full Text:
    submitted to Oregon State University in partial fulfillment of the requirements for the

  • Seamless Topobathymetric River Mapping Through Multi-Sensor Data Integration: Lidar, Sonar, RTK GNSS and Structure from Motion

    Creator:
    Kellum, Kory and Kellum, Kory E.
    Abstract:
    Seamless, high-resolution topobathymetric digital elevation models (DEMs) of rivers are important for generating hydrodynamic models, studying water quality and related ecological issues, modeling flood vulnerability, and numerous other applications. However, such DEMs can be difficult to generate, due to a lack of topographic and bathymetric source data. Even where the...
    Resource Type:
    Capstone Project
    Full Text:
    Structure from Motion by Kory E. Kellum A PROJECT submitted to Oregon State

  • Evaluating safety at Oregon‘s isolated, high-speed, signalized intersections

    Creator:
    Kopper, Neil H.
    Abstract:
    Isolated approaches at signalized intersections with posted speed limits of 45 mph or greater generally experience large numbers of rear-end and angle collisions. A combination of less attentive drivers, high operating speeds, and less than ideal intersection characteristics can result in crash frequencies well above expected rates. A number of...
    Resource Type:
    Masters Thesis
    Full Text:
    high number of rear-end and angle crashes. In Oregon, as well as the rest of the United States

  • Reducing sediment production from forest roads during wet-weather use

    Creator:
    Toman, Elizabeth Myers
    Abstract:
    Forest roads produce fine sediment with traffic during wet weather. If the forest road is connected to a stream it can be a source of turbidity and fine sediment that may be detrimental to aquatic organisms especially salmonids. The goal of this work was to investigate turbid runoff during wet-weather...
    Resource Type:
    Dissertation
    Full Text:
    DISSERTATION submitted to Oregon State University in partial fulfillment of the

  • Opportunities and challenges for decision support systems in log truck scheduling and dispatching

    Creator:
    Kokenge, Kyler S.
    Abstract:
    The transportation of logs from the forest to the mill accounts for 25-50% of the delivered cost of wood, depending mostly on haul distance. Decision support systems (DSS) for log truck scheduling and dispatching have the potential to reduce transportation costs by optimally constructing routes, also known as schedules for...
    Resource Type:
    Masters Thesis
    Full Text:
    have been implementations of DSS for log truck scheduling and dispatching in the United States and

  • Moisture effects on properties of wood-composite assemblies

    Creator:
    King, David
    Abstract:
    Engineered wood composites are used in many structural applications and are intended for dry use. However, these materials may encounter significant amounts of wetting while in service, which can lead to structural failures. This study combined aspects of wood science, mechanics, structural engineering, and mycology to assess changes in material...
    Resource Type:
    Masters Thesis
    Full Text:
    -Composite Assemblies by David King A THESIS submitted to Oregon State

  • Development of an improved system for Oregon to accurately quantify dense-graded hot mix asphalt pavement density

    Creator:
    Darra, Suraj
    Abstract:
    The Oregon Department of Transportation (ODOT) standard specifications require a minimum density for the construction of dense-graded hot mix asphalt (HMA) pavements. Currently, the standard specifications call for density measurements for quality control (QC) and quality assurance (QA) testing to be made using nuclear density gauges that are calibrated using...
    Resource Type:
    Masters Thesis
    Full Text:
    density tests to be performed on them vary from state to state in the United States. While some states

  • The effect of elevated temperature on mechanical behavior of structural wood and wood-based composites

    Creator:
    Sinha, Arijit
    Abstract:
    Engineers, in practice, are often faced with the challenge of evaluating a fire-damaged structure and developing a rehabilitation and retrofit plan. In order to decide on a rehabilitation and retrofit plan, information on thermal degradation of building materials and connections are vital. A critical knowledge gap exists in terms of...
    Resource Type:
    Dissertation
    Full Text:
    Oregon State University in partial fulfillment of the requirements for the degree of