Engineering Commons^™

Structural Analysis By Minimum Strain Energy Methods, John B. Heagler

Professional Degree Theses

"Analysis of structure has its conception for the engineer early in his formal education and follows a set sequency from solving for equilibrium in simple beams and free bodies to more complicated solutions for stresses and deflections in multiply redundant structures.

Difficulty arises for the engineer when he loses the sequence of the subject and finds himself memorizing formulas and methods of solution without a clear and concise understanding of the underlying fundamental principles involved in arriving at these formulae and methods of solution.

The Aircraft Structural Analyst finds himself in a relatively new field of engineering structural design. Here …

Sanitary Engineering And The Small College, John William Clark Jr.

Professional Degree Theses

"There is an unprecedented need for sanitary engineers. College students should be informed of the need and of this general field at an early stage in their education so that proper guidance can be given in the selection of electives to those interested.

Colleges must re-appraise their sanitary engineering offering and expand their programs to meet the needs of society.

One of the most difficult jobs facing an expanded sanitary engineering program is securing the students with proper background. Most of the freshmen entering college have some ideas as to what vocation they want to strive toward. This idea of …

Design And Development Of Cantilevered Flexural Pivots For Use In Self-Leveling Surveying Instruments, Rolland Lee Hardy

Professional Degree Theses

"Problem: The problem to be covered in this dissertation is broadly stated in its title, namely, the design and development of cantilevered flexural pivots for use in self-leveling surveying instruments. For clarification, the definitions of the significant phrases in the title which may be completely new or unknown to the reader are covered in this introduction. Because the dissertation actually covers a series of problems, each will be defined more specifically as they are covered in the discussion"--Introduction, page 1.

Design Of A Precast Concrete Deck Girder Highway Bridge, Robert V. Gevecker

Professional Degree Theses

"In the Fall of 1951, as a result of an agreement between the Portland Cement Association and the Missouri State Highway Department, with the approval and good wishes of the United States Department of Commerce, Bureau of Public Roads, the State Highway Department embarked on a program to design and construct several precast, prestressed, and precast-prestressed concrete highway bridges"--Introduction, page 1.

The purpose of this extensive program being to indicate to State Highway officials and other interested parties the advantages of these types of construction. In the words of Mr. S. W. O'Brien, District Engineer for the Bureau of Public …

Field Resolution Tests With The Metrogon Lens, Robert Greig Livingston

Professional Degree Theses

"The first portion of this treatise is devoted to a compilation of general knowledge concerning photographic resolution testing - an explanation of certain optical terms; the drafting of resolution targets; methods for averaging resolution values, measured at various positions on the format, to obtain one over-all value for an exposure; and a description of the factors involved in conducting the photographic operations. In the second part of the paper, analyses of the results obtained from line-target resolutions are made with the purpose of determining those combinations of aperture, filter, and shutter speed which result in high photographic resolutions. This information …

An Application Of Skew Frequency Curves To River Stages, Vernon A. C. Gevecker

Professional Degree Theses

"Floods have occurred in the past and will occur again in the future. References to floods are incorporated in some of the early writings of man. Unfortunately though man has recorded the event, he has seldom recorded facts whereby it is possible to determine the volume of flow or the height to which the water rose. Where man has recorded the height to which water rose, much data such as channel conditions, vegetation coverage on the flood plain, etc., remains vague or unknown.

It has been only in comparatively recent times with the advent of the steamboat that man has …

Recommended Procedure For The Computation Of Rights Of Way, Leon Hershkowitz

Professional Degree Theses

"This thesis sets forth a recommended procedure for the computation of areas included in "rights of way," using the principle of double meridian distances.

For a considerable number of years, it has been the opinion of the author that steps should be taken to arrive at some form of standardization in the procedures necessary in the computation of areas involving right of way and to more or less standardize legal descriptions pertaining thereto.

One need only examine the records of the various County Recorders in one particular state or in different states and he would be entirely convinced that such …

Research Investigation Of Seepage Control For Dams And Levees, Robert Raymond Brookshire

Professional Degree Theses

"The problems of a century old levee system have provided excellent research for the Corp of Engineers and others in the design and construction of earth dams for flood control, navigation and multi-purpose projects. A special problem on which valuable knowledge has been gained is that of seepage control. The experiences obtained in recent years have been supplemented by theoretical developments in the field of soil mechanics, but it is believed that considerable information will be gained on seepage control from further investigation and experience.

The safety factor to prevent failure from seepage is believed to be the most critical …

Standardization Of No-Passing Zone Pavement Markings, Glen Nickolas Hackmann

Professional Degree Theses

"This thesis is a comprehensive treatment of present methods practiced by the various Highway Departments in the United States. It presents in particular current methods used by the State Highway Departments and the Public Roads Administration in marking no-passing zones throughout the country. For a long time it has seemed to the author that such a study was needed by both students and highway engineers. Road-design information of great value has developed over the years and often has been published but never assembled in a single orderly presentation stripped of excessive overlapping"--Preface, page ii.

Floods Of May 1943 In Missouri, John August Short

Professional Degree Theses

"The year 1943 will be remembered for a long time as a year of great floods in the Middle West. Floods were occurring in some section of Missouri from April to June. The period of highest stream flow in general occurred during the month of May, and it is the May flood to which this paper pertains. It is quite possible that the importance of this flood is not generally recognized. Although everyone realizes that it was a major catastrophe, only planners for the future, particularly designing engineers, can fully appreciate the benefits which will be obtained from the information …

A Study Of The Pollution Of The Meramec River, William Quentin Kehr

Professional Degree Theses

"Early in 1940 a project was undertaken for a complete survey of the Meramec River Basin. This project, of which the pollution study was a part, was one of the most extensive surveys made of an entire river basin and included detailed studies of soil erosion, land, use, pollution, rainfall, and recreation in the Meramec Basin. The pollution study covered that portion of the Meramec River from its confluence with the Mississippi River to Steelville, a distance of about 140 river miles; the Big River from its mouth to a point west of Flat River, a distance of 107 river …

Research Investigation Of Organized Drainage Districts In Mississippi, Lee Dorsett Dumm

Professional Degree Theses

"In the early days farmers attempted to drain their land individually, but they soon found that water did not recognize property lines. One farmer would ditch his land only to find that the water from his neighbor's farm would wash over has land and fill up his ditches. Another would attempt to ditch his land, but would find that no outlet was available for his ditch unless he constructed it across the land of his neighbor. Because of such situations, groups of farmers cooperated in constructing drainage improvements. However, difficulty was encountered in reaching an agreement as to the division …

The Clark National Forest Of Missouri, Walter A. Werner

Professional Degree Theses

"The question might logically arise as to the appropriateness of a thesis with a forestry title being submitted for an engineering degree. The writer has been connected with the United States Forest Service for the past four years in an advisory capacity on staff of the Forest Supervisor of the Clark National Forest, during which time he has found that the engineers and construction men have performed a major function in the development of the forest.

As the initial development consisting of lineal surveys, construction of roads and telephone lines, erection of fire lookout towers, planning and erection of ranger …

Malaria Control Engineering On The Pickwick Reservoir, Cornelius Wolfram Kruse

Professional Degree Theses

"During the past year in an area extending south of a line between Norfolk, Virginia and St. Louis, Missouri, it has been estimated that about 10,000 deaths and staggering economic losses were caused by malaria fever...Since the recent inauguration of river development projects on the various streams in the so-called "malaria belt" of our country, malaria control methods on impounded waters have been of increasing concern to the health workers of the South...Mosquito control on impounded waters must be constructed into the dam design and requires a careful program of reservoir preparation or conditioning of the body of water so …

The Construction Of Cofferdams Dam No. 26, Alton, Illinois, Arthur James Williams

Professional Degree Theses

"This report is intended to serve as a record of the procedure followed by the Engineering Construction Corporation in the construction and removal of the three cofferdams used during the construction of the Alton Dam with resulting problems, progress and costs"--Introduction, page 1.

An Approach To County Planning - Miller County, Frederick William Hurd

Professional Degree Theses

"The purpose of this report is to present and discuss a proposed eight year state and county highway program as applicable to Miller County. Local needs for transportation service may be most readily and efficiently administered to on the county basis. The highway requirements of the state are now largely for local service roads and it is evident that a fair and just method of allocating this service must provide for the physical characteristics, economical status and local peculiarities of the area involved. We may therefore justly assume that the counties, the smallest political subdivisions in the state having direct …

Superstructure Costs Of Short Span Self-Anchored Suspension Bridges, David J. Peery

Professional Degree Theses

"Complete designs and estimates for three self-anchored highway suspension bridges are made in this paper. The span lengths investigated are commonly considered to be shorter than the economic limit for suspension bridges. Simple truss and cantilever bridges are usually considered the most economic types for these span lengths"--Synopsis, page 1.

The Foundations Of Lock And Dam No. 26 - Alton, Illinois, John Joseph Livingston

Professional Degree Theses

"The present Upper Mississippi River Canalization Program provides for a channel depth of nine feet, with suitable widths, at low water, in the Upper Mississippi River between the Missouri River and Minneapolis, Minnesota, and was adopted by the River and Harbor Act of July 3, 1930, as amended by Public Resolution No. 10, Seventy-second Congress, First Session, approved February 24, 1932. The establishment of this nine-foot channel requires the construction of twenty-six dams and accompanying locks - two of which were already constructed - at selected points throughout the distance between Minneapolis and the mouth of the Missouri River...This series …

Application Of Small-Scale, Movable-Bed River Models To Channel Improvement Studies Of The Middle Mississippi River, Eugene H. Woodman

Professional Degree Theses

"This paper deals primarily with the use of small-scale models in the study of plans for improving the channel for navigation in several reaches of the Middle Mississippi River. However, it was considered expedient to include a discussion of hydraulic model experimentation in general before dealing with specific cases, in order that the reader might obtain the greatest possible satisfaction from the discussion.

The first part of this paper includes: a discussion of the theory of models, wherein the value and utility of models are demonstrated; the application of models to hydraulic problems, including the requirements for a model to …

Hydrography Of The Larger Springs Of The Ozark Region Of Missouri, Warwick Lewis Doll

Professional Degree Theses

"This thesis is based upon a study of the larger springs of the Ozark Region of Missouri and is designed to answer many requests for information about the large springs.

Special studies were made to determine the probable location and approximate area of the drainage areas of the large springs (previous writers have referred to the drainage areas as being “very large" or "enormous", apparently, without any very definite idea as to the extent or the drainage areas). The average run-off per square mile from the assumed drainage area, herein called the "spring factor", was determined for the largest springs. …

The Express Highway Through The City Of St. Louis, Fulton Hord Campbell

Professional Degree Theses

"Among the many important highway construction projects undertaken in Missouri, the Express Highway through the City of St. Louis ranks among the first both because of the coast and difficulties involved, and because of the improvement in traffic conditions which it provided. This highway enters the city at the southwest corner of Forest Park, which is the junction of Skinker Road and Oakland Avenue. The accompanying map will give an idea of the location of the highway from this point to its end, a distance of approximately two and ninety-six one hundredths miles. The most noteworthy feature is that there …

Line And Grade Control Of The Subaqueous Midtown Hudson Tunnel, Lauren Preston Tuttle

Professional Degree Theses

"The entire system unifies all Preliminary Survey, Construction Control, and Independent Traverse work; bringing them under one common balanced system; thus, their precise relation is definitely established regardless of which side of the Hudson River the unit occurs. The establishing of a complete system is a subject within itself, and as this paper deals with the method of obtaining and carrying to completion the method of control for the river section of the tunnel, we shall limit our reference to the Triangulation system to the River Quadrangle"--Triangulation System. General, page 1.

Highway Bridges, Design And Cost, John Edward Kirkham

Professional Degree Theses

"Specifications for highway bridges have been modified considerably during the past 15 years. The principal modifications have been the result of the continuous development of motor traffic. The principal changes made have been with reference to live load, impact, and allowable unit stresses. The live load has been changed to conform with the increased weight of modern motor traffic; impact has been included to provide for the effect of heavy fast-moving trucks; and the change in unit stresses has resulted by agreement of engineers. The following specifications, which will be used herein, are practically excerpts from "Specifications for Highway Bridges," …

Design And Construction Of Ponds And Small Reservoirs, Harry Franklin Bossert

Professional Degree Theses

"In presenting this paper, "The Construction of Ponds and Small Reservoirs", the writer wishes to call attention to a report by the National Resources Committee entitled "Little Waters : A Study of Headwater Streams and Other Little Waters: Their Use and Relation to the Land"--Introduction, page 5.

A Study Of Missouri Springs, Harry Cloyd Bolon

Professional Degree Theses

"This thesis is based upon a study of the large springs of the Ozarks and is designed to answer many of the requests that are being received continually by the Missouri and the United States Geological Surveys. The various studies inculcated in this report are made from a rather limited amount of data available regarding the size, character, and sources of these springs and what they are actually worth to the State of Missouri. The main body of the thesis is a revised tabulation of data contained in Chapter 3, Volume 20, Missouri Bureau of Geology and Mines, "Water Resources …

Return Flow Study Of The North Platte River, E. W. Carlton

Professional Degree Theses

"The investigation of return flow on the North Platte River, between Whalen, Wyoming and North Platte, Nebraska, was authorized by House Bill No. 308, "Flood control Act," Mississippi River and Tributaries, February, 28, 1929. The purpose of this study was to determine, if possible, the amount of return flow from the United States Reclamation Service "North Platte Irrigation Project", and its effect on the future development of irrigation in the North Platte Valley, flood control of the North Platte River, and it's ultimate effect upon navigation possibilities of the Missouri River. The particular phase of the above problem of which …

Water Resources Of Iowa, 1873-1932, Rudolph Gustav Kasel

Professional Degree Theses

No abstract provided.

The U.S.G.S. Topographic Map: Its Value And Method Of Construction, Daniel Kennedy

Professional Degree Theses

"Topographic maps, which differ from the base map in that they show not only relative distance and direction but also the accurate shape of the earths surface, are not new, but represent the constant improvement in mans efforts to reproduce on paper all that he sees and knows of regions of the globe.

While history records the first maps known to man as being made by the Babylonians on clay tablets centuries before Christ, the first relief map was made by the Ninth Inca who died in the year 1191. The present method of showing relief by contours was employed …

U.S. Forest Service Acquisition Surveys In The Ozark Region Of Missouri, Booker Hall Rucker

Professional Degree Theses

"Some idea as to how the plans of the United States Forest Service will tie in with other national plans in establishing their various forests will be given in the following paragraphs. First, and of most interest to the engineers, - the United States Forest Service plans to tie in very securely with those of the United States Engineers Corps work on flood control in the Mississippi drainage area. The general set up of the various Federal Forests, as to management, operation, and so on, are all on the same general lines. This discussion, however, will be only of the …

Comparison Of Various Types Of Road Surfacing, Charles Cyrus Tevis

Professional Degree Theses

"It is the intention of this thesis to compare the more common types of road surfacing by establishing both the good and poor qualities of each type of pavement. All of the subject matter that follows is based on the theory that each approved type of pavement has its use and the most economical pavement to construct is the one that gives the greatest service to the traveling public per dollar, invested over a period of years...There are only four major types of road surfacing, namely; concrete, asphalt, brick and gravel that are now being constructed in most states and …