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Landslides In Kentucky, Robert C. Deen, James H. Havens

Kentucky Transportation Center Research Report

The reoccurrence of certain features of landslides in Kentucky suggests that the difficulties in the State can be readily classified. Because of this repetitive nature, one can be alerted to the possibility of slides in certain situations early in the planning and design stages of the facility to be constructed. Thus, the traveling public might be spared the inconvenience illustrated in Figure 1. Enough cannot be said concerning the necessity for having adequate soils and geological information concerning possible routes for highway locations, and a review of a number of landslides in Kentucky suggests that there are certain troublesome geologic …

Discussion On Skid Resistance Of Pavement Surfaces, Rolands L. Rizenbergs

Kentucky Transportation Center Research Report

The concern for adequate skid resistance or friction of pavement surfaces is confined to wet weather conditions. Dry pavements are highly skid resistant unless the surface contains loose material, such as gravel, sand, etc., which could provide rolling action by the particles under the tires. Surface contaminates, such as oil, soft tars and asphalt, etc., could also provide lubrication to the surface and create a slippery condition. Normally, however, water is the lubricating agent reducing pavement friction and in some cases creating very hazardous driving conditions. Another situation of concern is drainage, or lack of proper drainage, of the pavement. …

I-75 Kenton County Slide, Herbert F. Southgate

Kentucky Transportation Center Research Report

No abstract provided.

Letter To Pearl Von Allmen Regarding Seaall Officer Election, August 26, 1968, Mary Polk Green

Correspondence

A letter from Mary Polk Green to Pearl Von Allmen regarding notifying AALL about SEAALL Officer election results.

Letter To Pearl Von Allmen Regarding A Seaall Meeting, August 26, 1968, Sarah Leverette

Correspondence

A letter from Sarah Leverette to Pearl Von Allmen discussing Leverette's enjoyment of a SEAALL meeting.

Letter To Gerard Magavero Regarding The Seaall Annual Meeting, August 23, 1968, Pearl Von Allmen

Correspondence

A letter from Pearl Von Allmen to Gerard Magavero thanking Magavero for assisting with the SEAALL Annual Meeting.

Letter To Pearl Von Allmen Regarding Seaall Officers, August 22, 1968, Myrtle Diemer

Correspondence

A letter from Myrtle Diemer to Pearl Von Allmen requesting a list of SEAALL's Officers.

Letter To Pearl Von Allmen Regarding The Seaall Annual Meeting, August 8, 1968, Gerard Magavero

Correspondence

A letter from Gerard Magavero to Pearl Von Allmen regarding programs for the SEAALL Annual Meeting.

Letter To William Younger Regarding The Seaall Annual Meeting, August 8, 1968, Gerard Magavero

Correspondence

A letter from Gerard Magavero to William Younger discussing plans and proposed discussions for the SEAALL Annual Meeting.

Letter To Pearl Von Allmen Regarding Seaall Annual Meeting, August 8, 1968, Mary Polk Green

Correspondence

A letter from Mary Polk Green to Pearl Von Allmen regarding the program for the SEAALL Annual Meeting. Green also discusses Dorothy Salmon's health.

Housing Burley Tobacco On Portable Curing Frames, Elmon E. Yoder, Ira E. Massie

Agronomy Notes

Portable frames, wood and steel, and tractor lifts will make tobacco housing a little easier. The following story describes the use of these items in housing a burley tobacco crop.

Determination Of Traffic Parameters For The Prediction, Projection, And Computation Of Ewl’S, John A. Deacon, Robert L. Lynch

Kentucky Transportation Center Research Report

One of the first published methods for the structural design of highway pavements was called the Massachusetts Rule and was presented in the eighth annual report of the Massachusetts Highway Commission in 1901 (1). The essence of this procedure was a rather intuitive assumption concerning the distribution of vertical pressures beneath a loaded area. For design purposes, this required the selection of a design load which, since failure was assumed to be catastrophic and not cumulative, could be taken as the largest load that could reasonably be anticipated during the design life of the pavement. The prediction of such a …

Equivalent Axleloads For Pavement Design, John A. Deacon, Robert C. Deen

Kentucky Transportation Center Research Report

Proper structural design of highway pavements requires an evaluation of the destructive effects of the anticipated vehicular loading. The concept of load equivalency provides a means for expressing these destructive effects in terms of a single measure, the equivalent axleloads (EAL's). The design EAL's represents the equivalent number of applications of a standard or base axleload anticipated during the design life.

Florida Skid Correlation Study Of 1967 – Skid Testing With Automobiles, Rolands L. Rizenbergs

Kentucky Transportation Center Research Report

The inclusion of automobiles in the Florida skid correlation study was promoted by the recognition of the following needs: 1) to compare stopping-distance measurements obtained with different instrumentation, 2) to suggest a standard method of stopping-distance testing, 3) to relate skid-resistance measurements of trailer-type testers with stopping distances of automobiles, and 4) to explore other skid-resistance measurements techniques using an automobile.

The vehicles were all full-size automobiles. Each vehicle was instrumented to measure a distance from a predetermined pressure in the brake hydraulic system to where the vehicle came to rest. Stopping distance in most of the automobiles was read …

Kentucky Rock Asphalt Hot-Mix Surfaces, Robert L. Florence

Kentucky Transportation Center Research Report

When this study was initiated in 1962, the objectives were disposed toward the development of Kentucky Rock Asphalt for use as a traffic-bound base and surface on rural roads near its source and toward redevelopment of the material for use as hot-mixed, hot-laid, skid-resistant surface course for higher echelon roads. Between July 1962 and August 1965, eight experimental, lean rock-asphalt bases were constructed and evaluated (1, 2, 3).

During the fall of 1965 a hot-mixed, enriched, rock-asphalt surfacing material was successfully produced through a conventional hot-mix plant and laid with a paver on a 8.4-mile section of Nolin Dam Road …

Experimental Applications Of Protective Coatings To Shales Exposed In Highway Cuts, James H. Havens

Kentucky Transportation Center Research Report

Many shales exposed in roadway cut-sections are susceptible to weathering, slaking, and erosion; fallout and taluses clog drainage; benches overflow; and occasionally landslides or rockslides develop. Presently, in design, certain types of shales and even named formations are afforded wider benches than others; soil mantles at the tops of cuts are being stripped back farther; and, of course, sound ledge-rock offers the preferred type of bench-cap. Pre-splitting methods of blasting have greatly enhanced the appearance of cuts and have minimized the shattering of cut faces. The resulting surfaces frequently are quite smooth when first exposed and remain so if the …

Performance Of A Reinforced Concrete Pipe Culvert Under Rock Embankment, Robert C. Deen

Kentucky Transportation Center Research Report

A 48-inch diameter reinforced concrete pipe installation has been observed in order to evaluate the performance of both types of bedding conditions as currently used by the Kentucky Department of Highways. A portion of the pipe was laid using Kentucky's Standard B Bedding. The remainder of the pipe culvert was laid using the B₁ Bedding (imperfect trench); the design height of the fill (36 feet) was sufficient to require the imperfect trench construction. The embankment was primarily of a rock fill material, with the largest particle size limited to a maximum of 3 feet. The portion of the pipe …

Durability Of Culvert Pipe, James H. Havens

Kentucky Transportation Center Research Report

Almost twenty years ago the Department began to develop durability data on types of culvert materials. In the interim, various stopgap as well as very judicious policies have issued. The present criterion or design practice applicable to Federal Aid projects was affirmed by the Bureau of Public Roads, May 24, 1965. Extensive field surveys have been conducted; various design innovations have been employed; and a "hot" test site has, in a demonstrative way, provided critical life-expectancy records. All past history had been documented previously; however, a brief retrospective summary will provide some continuity between forethought and certain issues now maturing.

Letter To Pearl Von Allmen Regarding Seaall Annual Meeting, July 16, 1968, Mary Polk Green

Correspondence

A letter from Mary Polk Green to Pearl Von Allmen asking Von Allmen about plans before and after the SEAALL Annual Meeting.

Letter To Gerard Magavero Regarding The Seaall Annual Meeting, July 11, 1968, Pearl Von Allmen

Correspondence

A letter from Pearl Von Allmen to Gerard Magavero regarding the mailing of invitations to the SEAALL Annual Meeting.

Economic Analysis Of Alternative Flood Control Measures, L. Douglas James, Thomas M. Rachford, James Ray Villines, Clyde R. Dempsey, James Norris Cline, Carlos Fix Miller

KWRRI Research Reports

Within the last few years, the growing realization that an effective flood control program must include non-structural measures (land use management and flood proofing) has resulted in Presidential Executive Order 11296 requiring Federal agencies to seek the optimum combination of structural and non-structural measures for flood control. The requirement has created a dilemma. No methodology is available for systematic evaluation of alternative combinations of structural and non-structural measures. Prospective procedures are too time consuming to be feasible under current financial and manpower limitations.

The only way out is to perform much of the planning process by digital computer. With this …

A Concrete Pavement Without Transverse Joints [July 1968], Ronald D. Hughes

Kentucky Transportation Center Research Report

In 1949, a 5.737-mile section of portland cement concrete pavement was constructed without the inclusion of transverse joints. The project, designated as Fl 239(4), is a section of US 31W located in Simpson County extending from the Tennessee line (Sta 9+11) to the south city limits of Franklin (Sta 311+40). The pavement is 22 feet wide, 8 inches thick, and is underlain by 1-1/2 inches of compacted No. 10 crushed limestone for insulation and leveling. Air-entraining cement was used and the concrete was placed with approximately 4-1/2 percent entrained air. One-half inch deformed tie bars were used in the longitudinal …

Letter To Pearl Von Allmen Regarding Seaall Officer Election, June 11, 1968, Mary Polk Green

Correspondence

A letter from Mary Polk Green to Pearl Von Allmen regarding ballots for the SEAALL Officer election.

Letter To Mary Polk Green Regarding The Seaall Officer Election, June 7, 1968, Pearl Von Allmen

Correspondence

A letter from Pearl Von Allmen to Mary Polk Green discussing the mailing of ballots for the SEAALL Officer election.

Letter To Pearl Von Allmen Regarding Seaall Officer Nominations, June 5, 1968, Mary Polk Green

Correspondence

A letter from Mary Polk Green to Pearl Von Allmen regarding nominations process for SEAALL Officer election.

Temperature Distribution Within Aspalt Pavements And Its Relationship To Pavement Deflection, Herbert F. Southgate, Robert C. Deen

Kentucky Transportation Center Research Report

No abstract provided.

Bridge Paint Specifications, Proposed Revisions, James H. Havens

Kentucky Transportation Center Research Report

During the past several years, I have devoted considerable attention and study to bridge-paint systems and specification -- in an attempt to keep abreast with developments and current practices throughout the country. My first proposal (July 30, 1958; copy appended) was motivated by development of a then-new rust-inhibitive pigment suggested by National Lead Company. The pigment had shown considerable promise as a substitute for red lead and appeared in many respects to be superior to red lead -- on of which was economy.

Construction And Performance Of Trial Section Of Treated Shoulders On The Mountain Parkway Extension, Robert L. Florence, Tommy C. Hopkins

Kentucky Transportation Center Research Report

In October 1966, J.W. Spurrier, Assistant Operations Management Engineer, requested that the Research Division make a study of a two-mile section of the shoulders on the Mountain Parkway Extension in Wolfe County (from Mile Post 43.8 to Mile Post 45.8) and make recommendations for design and construction procedures for cement stabilization of the shoulders. In compliance with this request, in January 1967, Research Division personnel made a survey of the full length of shoulder on the Mountain Parkway Extension. Included in this survey were measurements of depth of the dense graded aggregate, penetrations of the shoulder subgrade soil and samples …

Investigation Of Use Of Preformed, Compressed Neoprene Seals In Joints Of Concrete Bridge Decks, Dennis L. Willaman

Kentucky Transportation Center Research Report

Progressive deterioration and staining of concrete bridge substructures and erosion of abutments may, in many instances, be attributed to the leakage of bridge deck joints. The primary difficulty in maintaining a properly sealed joint is the continual expansion and contraction of the bridge spans. Joint seals, of course, must remain in contact with both faces of the disjointed sections and remain flexible at all temperatures encountered.

A study was initiated by the Division of Research for the specific purpose of evaluating the performance of preformed, compressed neoprene seals and to compare the performance of these seals with the performance of …

Management Practices To Reduce Losses Caused By Hail Damage To Burley Tobacco, Allen Wallace, George Byers, Terry Rock

Agronomy Notes

It is estimated that Kentucky farmers have suffered income losses caused by hail damage to burley tobacco in excess of $6 million annually over the last five years . Such losses could often be substantially reduced through proper management of the crop following hail, according to studies involving artificial and natural hail damage.