Civil and Environmental Engineering Commons^™

Slides: Unquenchable, Robert Glennon

Western Water Law, Policy and Management: Ripples, Currents, and New Channels for Inquiry (Martz Summer Conference, June 3-5)

Presenter: Robert Glennon, Morris K. Udall Professor of Law and Public Policy, James E. Rogers College of Law, University of Arizona

56 slides

Slides: Finding Flows: Fish Still Need Water Everyday, Melinda Kassen

Western Water Law, Policy and Management: Ripples, Currents, and New Channels for Inquiry (Martz Summer Conference, June 3-5)

Presenter: Melinda Kassen, Director of the Western Water Project, Trout Unlimited

12 slides

Slides: Oil Shale Water Use: Upsetting The Apple-Cart Of River Habitat, Irrigation And Existing Water Rights?, Bart Miller

Western Water Law, Policy and Management: Ripples, Currents, and New Channels for Inquiry (Martz Summer Conference, June 3-5)

Presenter: Bart Miller, Western Resource Advocates, Boulder, CO

13 slides

Slides: Integrated Policy, Planning, And Management Of Water Resources, Robert Wilkinson

Western Water Law, Policy and Management: Ripples, Currents, and New Channels for Inquiry (Martz Summer Conference, June 3-5)

Presenter: Robert Wilkinson, Ph.D., Director of the Water Policy Program, Donald Bren School of Environmental Science and Management, University of California-- Santa Barbara

60 slides

Performance Monitoring Of Cover-Zone Concrete, Niall Holmes, John Mccarter, Malcolm Chrisp, Gerry Starrs, Sreejith Nanukuttan, Lulu Basheer, Niall Holmes, Muhammed Basheer

Conference papers

The concrete cover-zone is a major factor governing the degradation of concrete structures as it provides the only barrier to aggressive agents which initiate corrosion of the reinforcement. Knowledge of the protective qualities of cover-zone concrete is critical in attempting to make predictions as to the in-service performance of the structure with regard to likely deterioration rates for a particular exposure condition and compliance with specified design life. To this end, a multi-electrode array was used to study the surface 50mm of concrete specimens thereby allowing a detailed picture of the response of the covercrete to the changing environment. In …

South Burlington Vt: New Urbanist South Village, Jack Kartez, Richard Barringer

Planning

The 220 acre master plan for South Village, the largest project in the City of South Burlington’s history, encompasses multiple housing types and innovative provisions for affordable housing. It integrates housing with open space and natural resource conservation, including a major Community Supported Agriculture project developed by a nonprofit partner, the Intervale Foundation. While not a mixed-use project (that is, commercial as well as residential development), South Village nonetheless represents a qualitative change in approach for South Burlington by incorporating large-scale open space preservation as part of development and multiple housing-types in one project. The case study recounts events leading …

Conductivity Sensors To Monitor Cover-Zone Performance, W. J. Mccarter, T. M. Chrisp, G. Starrs, E. Owens, Niall Holmes, L. Basheer, S. V. Nanukuttan, M. Basheer

Conference papers

This paper presents developments in the use of an embedded, multi-electrode conductivity sensor to study the response of the concrete cover-zone to environmental action. The sensor enables an evaluation of the temporal and spatial variation of electrical conductivity thereby allowing an integrated assessment of the cover-zone. Conductivity sensors were embedded within concrete samples to study the cover-zone response to cyclic wetting and drying under laboratory conditions. This work was extended to include the use of remote interrogation methods to study samples placed at a marine exposure site and preliminary results are presented.

Hydrological Behavior Of Grasslands Of The Sandhills Of Nebraska: Water And Energy Balance Assessment From Measurements, Treatments And Modeling, Venkataramana Sridhar, David A. Wedin

Civil Engineering Faculty Publications and Presentations

Understanding energy and water balance processes in the Sandhills is crucial to assess the land-atmosphere feedback effects. The Sandhills located in western Nebraska covers a vast grassland ecosystem with limited variability in vegetation and soil. However, the combined effect of topography, land cover and micrometeorology by subjecting the land surface to various disturbances and treatments is rarely studied. The NOAH Land Surface Model was used to estimate net radiation, latent, sensible and ground heat fluxes as well as water balance components for two growing seasons between 2005 and 2006 in various plots at the Grasslands Destabilization Experimental site where these …

Dredging And Dredged Material Beneficial Use In Ireland, Colm Sheehan, Joseph R. Harrington, Jerry Murphy

Publications

This article provides an overview of the dredging industry in Ireland which may be small by international standards but is of critical importance to the nation’s Ports and Harbours. Open sea disposal of dredged material is most common, but a range of beneficial uses for the coarser fraction of dredged material has been practiced. Details on different aspects of dredging in Ireland are presented including a review of current beneficial uses. A specific site at Fenit Harbour in Tralee Bay is examined to assess the potential for a specific beneficial use of dredged material using geotubes in breakwater and revetment …

Why Is Fresh Self-Compacting Concrete Shear Thickening?, Dimitri Feys, Ronny Verhoeven, Geert De Schutter

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

The Rheological Properties of Fresh Concrete Are Mostly Described by Means of the Bingham Model. for Self-Compacting Concrete, the Bingham Model is Applicable in a Lot of Cases, But Some Authors Report that the Rheological Behavior is Non-Linear. the Apparent Viscosity Increases with Increasing Shear Rate and the SCC Shows Shear Thickening Behavior. Shear Thickening Becomes Important in Operations Occurring at High Shear Rates, Like Mixing and Pumping. in These Cases, Shear Thickening Should Not Be Forgotten in Order to Avoid Breaking of the Mixer, Pump or Pipes. This Paper Will Describe Two Possible Theories for Shear Thickening Behavior of …

Best Practices For Providing Traveler Information Services To Motorists At Rest Areas And Welcome Centers, Candice Y. Wallace, Jennifer R. Walton, Joseph D. Crabtree

Kentucky Transportation Center Research Report

The objective of this study was to look at what Kentucky and other states are doing to provide wireless Internet connectivity (i.e., Wi-Fi service) for motorists at rest areas, weigh stations, and truck rest havens, and to identify technologies and best practices that may have applicability to Kentucky. A secondary objective was to look at the use of kiosks to provide traveler information in rest areas and welcome centers. Information was gathered through a literature review, Internet searches, and telephone interviews with public officials in numerous states. The study identified 18 states that are providing (or have provided) Wi-Fi service …

Best Management Practices To Exchange Information Between The Toc And District Offices, Jennifer R. Walton, Kenneth R. Agent

Kentucky Transportation Center Research Report

The objective of this study was to develop best management practices for exchange of information between the Transportation Operations Center (TOC) and the district offices and regional traffic management centers. Data collected for this study included: meetings with the Study Advisory Committee and key personnel within the Kentucky Transportation Cabinet at the central office and highway district offices; a literature review; a state website review; and telephone interviews with representatives from a few states.

Recommendations were made in the following general areas: use of CARS/511; communication between the TOC and district offices; SAFE patrol; ITS equipment; public information; incident management; …

The North American Transportation Security Center – Deploy Project Collaboration Hardware/Software Infrastructure, Steven Douglas Kreis, Michael M. Barclay

Kentucky Transportation Center Research Report

No abstract provided.

Development Of Field Data For Effective Implementation Of Mechanistic Empirical Pavement Design Procedure, Atorod Azizinamini, Nima Ala, Mohammad Ajmal Stanigzai

Nebraska Department of Transportation: Research Reports

No abstract provided.

Effectiveness And Service Lives/Survival Curves Of Various Pavement Rehabilitation Treatments, Panagiotis Ch. Anastasopoulos, Fred L. Mannering, John E. Haddock

JTRP Technical Reports

The pavement analysis in this study considers various combinations of pavement rehabilitation treatments (two-course HMA overlay with or without surface milling, concrete pavement restoration, three-course HMA overlay with or without surface milling, three-course HMA overlay with crack and seat of PCC pavement and 3-R and 4-R overlay or replacement treatments). Six road functional classes (rural and urban of interstates, non-interstates of the NHS, and non-interstates non-NHS) are considered. This allows for estimation of the performance and service life of the pavement, corresponding to each treatment and road functional class. Main findings;

• More than 95 percent of the data points …

Preferential Flow Path Effects On Subsurface Contaminant Transport In Alluvial Floodplains, Derek M. Heeren, Ronald B. Miller, Gary A. Fox, Daniel E. Storm, Chad J. Penn, Todd Halihan

Department of Agricultural and Biological Systems Engineering: Faculty Publications

For strongly sorbing contaminants, transport from upland areas to surface water systems is typically considered to be due to surface runoff with subsurface transport assumed negligible. However, certain local conditions can lead to an environment where subsurface transport to streams may be significant, a source of contamination not alleviated by current best management practices (e.g. riparian buffers). The Ozark region, including parts of Oklahoma, Arkansas, and Missouri, is characterized by cherty, gravelly soils and gravel bed streams. Previous research identified a preferential flow path (PFP) at a field site along the Barren Fork Creek in northeastern Oklahoma. With the subsoils …

Evaluation Of The Effectiveness Of Speed Cameras On Road Safety In The Emirate Of Abu Dhabi Roads, Ali Humaid Ai Darei

Theses

The problem of road safety in the Emirate of Abu Dhabi is eminent. According road crash data from the Ministry of Interior, from 1999 to 2007 the average percentage of deaths due to road crashes in the Emirate of Abu Dhabi was 42 percent of the whole UAE. The high death rate due to road crashes has enormous economic and financial loss to the Emirate. The previous research on road safety in the UAE reported that the aberrant driving behavior is one of the major causes for road crashes in the UAE. The aberrant driving behavior includes careless driving, speeding, …

Prestressing Concrete With Shape Memory Alloy Fibers, Skye M. Orvis

Master's Theses

Concrete is considerably stronger in compression than it is in tension. When cracks form in concrete members, the flexural stiffness of the member decreases and the deflection increases which increases the overall size of the member. Prestressing concrete remedies this problem by inducing a compressive stress in the concrete thereby reducing the net tension in the member and increasing the load required to crack the member. Traditional prestressing is generally limited to large, straight members. During the last decade, shape memory alloys (SMA) have become more prevalent in engineering and civil engineering applications. The shape memory effect refers to the …

Assessing Near-Field Outdoor Concentration Variability From Residential Wood Smoke Combustion Sources, Courtney E. Ward

Master's Theses

ABSTRACT Assessing Near-Field Outdoor Concentration Variability from Residential Wood Smoke Combustion Sources Courtney Ward The primary goal of this research was to determine whether near field effects from residential wood smoke emissions have a significant impact on acute and/or average PM2.5 concentrations, and therefore health risks. To this end, three primary research objectives were addressed: (1) measurement of the variability of wood smoke concentrations within a residential neighborhood with wood smoke sources, (2) establishment of whether the magnitude of near-source contributions to exposures can be estimated using typically available data, and (3) prediction of wood smoke concentrations using linear regression …

Freeway Speed-Flow Relationships Under Rain And Congested Conditions, Jongho Byun

Dissertations

A procedure to account for the impact of rain and congested conditions on the average speed estimates is provided in this study. Although the Highway Capacity Manual (HCM) provides some discussion on the impact of adverse weather on speed-flow relationships, these impacts are not quantified. Using data collected under rain and congested conditions, a procedure for estimating the average speed under these conditions is provided, which is an improvement over the existing HCM (2000) procedures. Using the speed-flow relationships provided in the HCM (2000) for basic freeway segments as a starting point, new numerical relationships suitable for New Jersey roadways …

Analysis Of Marine Container Terminal Gate Congestion, Truck Waiting Cost, And System Optimization, Chang Qian Guan

Dissertations

As world container volume continues to grow and the introduction of 12,000 TEUs plus containerships into major trade routes, the port industry is under pressure to deal with the ever increasing freight volume. Gate congestion at marine container terminal is considered a major issue facing truckers who come to the terminal for container pickup and delivery. Harbor truckers operate in a very competitive environment; they are paid by trip, not by the hours they drive. Gate congestion is not only detrimental to their economic well-being, but also causes environmental pollution.

This thesis applies a multi-server queuing model to analyze marine …

Economic Development Criteria And Project Prioritization, Jason Scott Mcgee

Theses and Dissertations

To provide a more in-depth analysis of potential roadway projects, the Utah Department of Transportation (UDOT) desired a method of evaluating projects according to their economic potential without using potentially costly computer models or excessive data collection. Brigham Young University (BYU) was retained to research and recommend criteria for the economic development criteria in the project-prioritization process. A literature review was first undertaken to better understand the transportation-economic development relationship. Using the literature review, combined with the information from the Economic Development Corporation of Utah, the Governor's Office of Planning and Budget, the Governor's Office of Economic Development, and a …

Multi-Objective Design Of Transient Network Models, Bong Seog Jung, Misgana K. Muleta, Paul F. Boulos

Civil and Environmental Engineering

The optimal design of a water distribution system under transient conditions is formulated as a two-objective optimization problem. The objectives are minimization of the total pipe costs and maximization of the hydraulic reliability for the transient network design model. Unlike most optimization models in which demands are set to their end-of-life levels, this approach assumes that the demand loadings vary throughout the design life of the system. Evolutionary algorithms are applied to support efficient search for Pareto optimal solutions to the dual-objective optimization problem. An example application is presented and relevant conclusions are stated.

Coupling Of Integrated Biosphere Simulator To Regional Climate Model Version 3, Jonathan M. Winter, Jeremy S. Pal, Elfatih A. B. Eltahir

Civil and Environmental Engineering Faculty Works

A description of the coupling of Integrated Biosphere Simulator (IBIS) to Regional Climate Model version 3 (RegCM3) is presented. IBIS introduces several key advantages to RegCM3, most notably vegetation dynamics, the coexistence of multiple plant functional types in the same grid cell, more sophisticated plant phenology, plant competition, explicit modeling of soil/plant biogeochemistry, and additional soil and snow layers.

A single subroutine was created that allows RegCM3 to use IBIS for surface physics calculations. A revised initialization scheme was implemented for RegCM3–IBIS, including an IBIS-specific prescription of vegetation and soil properties.

To illustrate the relative strengths and weaknesses of RegCM3–IBIS, …

Combined Heat And Power In The Irish Market, Barry Cullen, Jim Mcgovern

Other resources

Combined Heat and Power (CHP) production offers significant benefits in terms of energy efficiency and CO2 abatement and is generally considered to be a key technology in the move towards sustainable energy in Ireland. As a distributed generation technology it immediately benefits from reduced transmission and distribution losses, and as a combined generator its total plant efficiency indicates a significant decrease in fuel costs and a reduction in harmful emissions. The corresponding positive effect on energy security through reduced consumption is notable also. It therefore holds a significant place in the country’s future energy strategy. The present work offers a …

Linear Analysis Of Ordinary Bridges Crossing Fault-Rupture Zones, Rakesh K. Goel, Anil K. Chopra

Civil and Environmental Engineering

Rooted in structural dynamics theory, two approximate procedures for estimating peak responses of linearly elastic “ordinary” bridges crossing fault-rupture zones are presented: response spectrum analysis (RSA) procedure and a linear static analysis procedure. These procedures estimate the peak response by superposing peak values of quasi-static and dynamic responses. The peak quasi-static response in both procedures is computed by static analysis of the bridge with peak values of all support displacements applied simultaneously. In RSA, the peak dynamic response is estimated by dynamic analysis including all significant modes, which is simplified in the latter procedure to static analysis of the bridge …

Nonlinear Analysis Of Ordinary Bridges Crossing Fault-Rupture Zones, Rakesh K. Goel, Anil K. Chopra

Civil and Environmental Engineering

Rooted in structural dynamics theory, three approximate procedures for estimating seismic demands for bridges crossing fault-rupture zones and deforming into their inelastic range are presented: modal pushover analysis (MPA), linear dynamic analysis, and linear static analysis. These procedures estimate the total seismic demand by superposing peak values of quasi-static and dynamic parts. The peak quasi-static demand in all three procedures is computed by nonlinear static analysis of the bridge subjected to peak values of all support displacements applied simultaneously. In the MPA and the linear dynamic analysis procedures, the peak dynamic demand is estimated by nonlinear static (or pushover) analysis …

Rainwater Harvesting Pilot Project Report, Liam Mccarton, Sean O'Hogain, Anna Reid, Niamh Mcintyre, Jenny Pender

Reports

The rainwater harvesting pilot project was commissioned by the National Rural Water Monitoring Committee in 2005 to assess the feasibility of supplementing treated mains water used for non-potable purposes. The project involved the design, installation, commissioning and monitoring of rainwater harvesting facilities in a rural housing development in County Carlow and in a 250-acre livestock farm in County Meath. Construction was carried out between 2005-2007.

Interaction Of Soil And Seepage Barrier Cracks Under Seepage Flow, Justin Whitmer

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

Seepage barriers are commonly installed in earthen dams and levees all over the world and consist of slurry walls, concrete walls, jet grouted walls, secant pile walls, sheet pile walls, and deep soil mixed walls. The purpose of the barrier is to reduce the amount of flow and seepage through the embankment and the foundation of the dam or levee. When seepage barriers were first being used it was under the impression that barriers would be a permanent mitigation of seepage problems. However, in prior research (Rice, 2007) it is mentioned that there are several cases where the seepage barriers …

Testing And Monitoring Concrete Using Novel Methods For Predicting Their Long Term Behaviour, Sreejith Nanukuttan, Lulu Basheer, Muhammed Basheer, Niall Holmes, John Mccarter, Malcolm Chrisp, Gerry Starrs

Conference papers

It is widely recognised that durability of concrete depends on its transport properties, viz. absorption, diffusion and permeability. As concrete cover provides the first line of defence against the ingress of many deleterious substances into the concrete, a measure of its transport properties is vital in assessing its long term performance in the given exposure condition. In new structures the rate of ingress of the deleterious substances could be monitored using array of electrical sensors which are embedded in the cover concrete. For structures which are currently in service, two in situ permeability apparatuses, viz. Autoclam Permeability System (for measuring …