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Searching For Sustainable Use Of Montana’S Water: A Series Of Vignettes, Matthew Mckinney

Sustainable Use of the West's Water (Summer Conference, June 12-14)

24 pages.

Contains references.

Regional Water Planning In New Mexico: An Opportunity For Citizen Involvement In State Government, Lucy Moore

Sustainable Use of the West's Water (Summer Conference, June 12-14)

12 pages.

Contains references.

Speculating On The Denver Basin, Robert E. Brogden

Sustainable Use of the West's Water (Summer Conference, June 12-14)

20 pages (includes illustrations and 1 map).

Contains footnotes.

Sustainable Use Of The Denver Basin, Charles B. White

Sustainable Use of the West's Water (Summer Conference, June 12-14)

20 pages.

Contains footnotes.

A Response To Kansas V. Colorado: Sustainable Use Of The Arkansas River, David L. Harrison

Sustainable Use of the West's Water (Summer Conference, June 12-14)

17 pages (includes 1 folded map).

A Meeting Of Opposites—Is Sustainable Use Of The Columbia River Possible?, John M. Volkman

Sustainable Use of the West's Water (Summer Conference, June 12-14)

47 pages.

Contains footnotes.

Decisionmaking And The Eis On Operations Of Glen Canyon Dam, Rick L. Gold

Sustainable Use of the West's Water (Summer Conference, June 12-14)

16 pages.

Arizona Water Management: New Problems And New Solutions, Herb Dishlip

Sustainable Use of the West's Water (Summer Conference, June 12-14)

12 pages.

Is Sustainable Agriculture Possible In The Arid West?: The Example Of The Ogallala Aquifer, John Opie

Sustainable Use of the West's Water (Summer Conference, June 12-14)

16 pages.

Contains 2 pages of references.

Agenda: Sustainable Use Of The West's Water, University Of Colorado Boulder. Natural Resources Law Center

Sustainable Use of the West's Water (Summer Conference, June 12-14)

Conference organizers and/or faculty included University of Colorado School of Law professors David H. Getches, Lawrence J. MacDonnell, Teresa A. Rice, Elizabeth A. Rieke and Charles F. Wilkinson.

Sustainable development is on the policy agenda for the '90s. What does sustainability mean? Is it a realistic concept? Are water rights compatible with sustainable use? The Center's 16th annual summer conference will explore the meaning of sustainability in the context of the West's demands, development, and natural values. Presentations by leading experts will address the broad concept of sustainable development, with a particular look at Arizona's experience. The focus will be …

Politics, Engineering And Aridity—Sustainable Use Of Water In Arizona, Michael J. Brophy

Sustainable Use of the West's Water (Summer Conference, June 12-14)

26 pages (includes illustrations).

Sustainable Use Of Natural Resources: A Native American Perspective, Ted Strong

Sustainable Use of the West's Water (Summer Conference, June 12-14)

27 pages.

Contains footnotes.

Sustainability: Myth And Reality, Kai Lee

Sustainable Use of the West's Water (Summer Conference, June 12-14)

23 pages (includes illustrations).

Contains references.

Agriculture’S Cap Experience: Sustainability For Whom?, Paul N. Wilson

Sustainable Use of the West's Water (Summer Conference, June 12-14)

23 pages.

Contains endnotes and references.

Cost Estimating And Forecasting For Highway Work In Kentucky [1995], James D. Stevens

Kentucky Transportation Center Research Report

There is a need for better cost estimating and forecasting for highway work in the Commonwealth of Kentucky. KRS45.245 grants the Interim Joint Committee on Transportation oversight of the biennial highway plan, including a review of all authorized highway project phases that exceed their estimates by 15%. In recent years, the Kentucky Transportation Cabinet has suffered the loss of many resources necessary to produce good cost estimates.

Estimates developed using current methods are not sufficiently accurate to preclude cost overruns in excess of 15%. Since enactment of KRS45.245 (1 July 1992 263 overruns, totaling nearly $117 million, have been submitted …

Design Of Automotive Structural Components Using High Strength Sheet Steels Effect Of Strain Rate On The Structural Strength Of Cold-Formed Steel Hybrid Beams, Chi-Ling Pan, Wei-Wen Yu

CCFSS Library (1939 - present)

INTRODUCTION In cold-formed steel design, local buckling is one of the major design features because of the use of large width-to-thickness ratios for compression elements. For the purpose of determining the load-carrying capacity of automotive components, the effective width approach has been used. In view of the fact that the design criteria for effective design width included in the AISI Automotive Steel Design Manual 1 are based on the test results for static loading condition, an investigation was conducted at University of Missouri-Rolla from January 1988 through December 1991 to study the validity of these effective design width formulas for …

A Life-Cycle Cost Analysis Program For Kentucky Pavements, Jack A. Harison, David L. Allen

Kentucky Transportation Center Research Report

This report documents the development of a life-cycle cost procedure and program for project-level pavements. Included in this report are the descriptions of the models that are included in the computer program. A traffic growth model is described along with performance models for asphaltic concrete pavements and Portland cement pavements. The program calculates when rehabilitation is predicted at all future dates during the design life or analysis period. Recommended overlay thicknesses are also given. Because maintenance costs for Kentucky are not available, maintenance is treated as an annual, per square- yard quantity. User costs, in the form of a delay …

Preliminary Evaluation, Artimis Reference Point Signs, Jerry G. Pigman

Kentucky Transportation Center Research Report

The objectives of the preliminary evaluation were to determine if the installation of reference signs at intervals more frequent than one-mile increments would improve the ability of emergency personnel to respond to incidents or accidents on the freeway system in the Cincinnati-northem Kentucky area. A short-term evaluation was conducted of white on blue and white on green reference signs on a three-mile section of 1-275 in Cincinnati. Based on field observations and supplemented with subjective opinions of emergency response personnel, the reference signs were determined to be a beneficial addition to the location information available to the driving public. The …

Development Of A Safety Management System, Kenneth R. Agent, Jerry G. Pigman

Kentucky Transportation Center Research Report

The Safety Management System (SMS) is one of six management systems mandated by Section 1 034 of the 1991 lntermodal Surface Transportation Efficiency Act (ISTEA). The overall goal of a SMS is to reduce the number and severity of traffic crashes. lt is to be comprehensive in that it incorporates all public roads and all contributing factors associated with the driver, the vehicle, and the roadway. The objective of this study was to develop a procedure to implement a SMS for Kentucky. A recommended process is described. Agencies and organizations were identified which have a role or interest in traffic …

Performance Of Shrinkage Compensating Bridge Deck Concrete (Class S) I-75, Kenton County, David Q. Hunsucker, Michael D. Stone

Kentucky Transportation Center Research Report

Shrinkage Compensating Concrete (Class S) is made with an expansive cement in which the expansion, if restrained, induces compressive stresses that approximately offset tensile stresses induced during drying shrinkage, thereby eliminating or significantly reducing the occurrence of shrinkage cracking in concrete. The objectives of this study were to evaluate the construction and performance of the Shrinkage Compensating Concrete (Class S) and to compare these characteristics to previous Class S concrete data and to conventional Class AA bridge deck concrete. This report summarizes construction activities and provides final performance evaluations and recommendations relative to experimental decks and barrier walls constructed of …

Performance Of Pyrament Cement Concrete In A Highway Bridge Deck, David Q. Hunsucker, Michael D. Stone

Kentucky Transportation Center Research Report

Pyrament Blended Cement (PBC) is a high performance cement that was developed by Lone Star Industries. Concrete that is made with PBC is rapid setting, has high strength and low permeability. The Kentucky Transportation Cabinet chose to use PBC concrete in a lull·depth bridge deck. The objectives of this study were to evaluate the construction and performance of a full-depth bridge deck constructed of PBC concrete and to compare the data obtained to historical construction and performance properties of conventional, Class AA bridge deck concrete. This report provides information relative to construction activities, materials properties, and a summary of the …

Development Of An Alternate Methodology For Identifying Heavy/Coal Trucks And Calculating Esal’S/Axle And Axles/Truck, Jack A. Harison, David L. Allen, Jerry G. Pigman

Kentucky Transportation Center Research Report

No abstract provided.

Equivalent Single Axleload Computer Program Enhancements, Jerry G. Pigman, David L. Allen, Jack A. Harison, Neil Tollner, David H. Cain

Kentucky Transportation Center Research Report

The objectives of the study were to review and modify previously used Equivalent Single Axleload (ESAL) prediction procedures and to develop a more efficient procedure. As part of the effort to simplify the procedure, a subtask was undertaken to reduce the number of highway functional classes being used to process data for the ESAL estimation procedure. Another objective was to develop a more definitive and accurate method for reflecting the effects of coal or heavy truck movements. Results of this task were documented as Research Report KTC-95-6.

Analyses were performed and validated to reduce the twelve functional classes to six …

Behavior Of Cold-Formed Steel Roof Trusses, Michael M. Harper, Roger A. Laboube, Wei-Wen Yu

CCFSS Library (1939 - present)

PREFACE To aid in adapting cold-formed steel to the residential market, a research project was initiated in 1993 at the University of Missouri-Rolla. Design issues relating to the use of cold-formed steel members and connections in residential roof truss systems were the focus of the project. The purpose of this research was to study the behavior of cold-formed steel roof truss systems and to establish appropriate design recommendations. Overall, the research findings were intended to aid the promotion of cold-formed steel as a safe, serviceable, and cost effective alternative in residential construction. The project consisted of a review of available …

The Effect Of Flange Restraint On Web Crippling Strength Of Cold-Formed Steel Z- And I-Sections, Darryl E. Cain, Roger A. Laboube, Wei-Wen Yu

CCFSS Library (1939 - present)

PREFACE When considering the web crippling strength of a cold-formed steel member, the current edition of the AISI Specification for the Design of Cold-Formed Steel Structural Members does not distinguish between the behavior of a member having its flanges attached to a support member, and a member not attached to its support. To enhance the industry and design professional's understanding of web crippling, a study was initiated at the University of Missouri-Rolla to explore the influence of flange attachment. This research consisted of web crippling tests on identical specimens. The specimens were tested where either cross sections were attached to …

Application Of Macro Material Flow Modeling To The Decision Making Process For Integrated Waste Management Systems, Samuel A. Vigil, Gregory M. Holter

Civil and Environmental Engineering

Computer models have been used for almost a decade to model and analyze various aspects of solid waste management. Commercially available models exist for estimating the capital and operating costs of landfills, waste-to-energy facilities and compost systems and for optimizing system performance along a single dimension (e.g. cost or transportation distance).

An alternative to the use of currently available models is the more flexible macro material flow modeling approach in which a macro scale or regional level approach is taken. Waste materials are tracked through the complete integrated waste management cycle from generation through recycling and reuse, and finally to …

Evaluating The Effectiveness Of A Delineated Wellhead Protection Area : The North West Wellfield In Dade County, Florida, Jose H. Olivo Jr.

FIU Electronic Theses and Dissertations

Methods for the evaluation of the effectiveness of the Wellhead Protection Program (WHPP) in the North West Wellfield, Dade County, Florida are presented. This is done through application of two computer programs developed by the Environmental Protection Agency: WHPA (Version 2.2), a Modular Semi-Analytical Model for the Delineation of Wellhead Protection Areas, and WHAEM, the Wellhead Analytical Element Model. In addition the Calculated Fixed Radius Method for capture zone delineation is also used. Wellhead delineation results from the afore mentioned three methods are obtained for both present and future water demands, based on population predictions done for the years 2010, …

Closure To "Seismic Code Analysis Of Buildings Without Locating Centers Of Rigidity", Rakesh K. Goel, Anil K. Chopra

Civil and Environmental Engineering

No abstract provided.

Optimizing Irrigation Management For Pollution Control And Sustainable Crop Yield, Ghassan R. Musharrafieh, Richard C. Peralta, Lynn M. Dudley, Ronald J. Hanks

Civil and Environmental Engineering Faculty Publications

Irrigation strategies which maximize crop yield while preventing salt from leaching to the groundwater or undesirable salt increases in the root zone are computed by using a one-dimensional simulation/optimization management model. The included constraint equations maintain a water volume balance and salt transport in the unsaturated zone. Implicit finite difference forms of the unsaturated water flow equation (Richards' equation), the diffusion-convection solute transport equation, functions describing the hydraulic properties of the medium, a root extraction function, and other constraints are used. The model uses a large discretization in time. A cyclic prediction and correction type of approach is adopted to …

Modeling For Optimal Management Of Agricultural And Domestic Wastewater Loading To Streams, Muhammad Shafqat Ejaz, Richard C. Peralta

Civil and Environmental Engineering Faculty Publications

A simulation/optimization (S/0) model to aid managing multiobjective wastewater loading to streams while maintaining adequate downstream water quality is presented. The conflicting objectives are to maximize the human and dairy cattle populations from which treated wastewater can be discharged to the river system. Nonindustrial municipal (domestic) wastewater undergoes primary and secondary treatment by a sewage treatment plant (STP) before entering as a steady point source. Dairy wastewater is treated by overland flow (OLF) land treatment before entering the stream as a controlled steady diffuse source. Maximum dual-source loading strategies which do not degrade downstream water quality beyond specified limits are …