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Gravel Roads
The purpose of this manual is to provide clear and helpful information for maintaining gravel roads. Very little technical help is available to small agencies that are responsible for managing these roads. Gravel road maintenance has traditionally been "more of an art than a science" and very few formal standards exist. This manual contains guidelines to help answer the questions that arise concerning gravel road maintenance such as: What is enough surface crown? What is too much? What causes corrugation? The information is as nontechnical as possible without sacrificing clear guidelines and instructions on how to do the job right.
Kimberling Kin from East to West, 1750 to 1983
Adam Kimberling (ca.1750-ca.1805), son of German immigrants, married Nancy Davis about 1770 and lived in Augusta County and Botetourt County, Virginia. Descendants and relatives lived in Virginia, West Virginia, Missouri, Iowa, Nebraska, Minnesota, Oregon, California and elsewhere.
Into the Bright Sunshine
"Hubert Humphrey, a fallen hero and a dying man, rose on rickety legs to approach the podium of the Philadelphia Convention Hall, his pulpit for the commencement address at the University of Pennsylvania. He clutched a sheaf of paper with his speech for the occasion, typed and double-spaced by an assistant from his extemporaneous dictation, and then marked up in pencil by Humphrey himself. A note on the first page, circled to draw particular attention, read simply, "30 years ago - Here." In this place, at that time, twenty-nine years earlier to be precise, he had made history. From the dais now, Humphrey beheld five thousand impending graduates, an ebony sea of gowns and mortarboards, broken by one iconoclast in a homemade crown, two in ribboned bonnets, and another whose headgear bore the masking-tape message HI MA PA. In the horseshoe curve of the arena's double balcony loomed eight thousand parents and siblings, children, and friends. Wearing shirtsleeves and cotton shifts amid the stale heat, they looked like pale confetti from where Humphrey stood, and their flash cameras flickered away, a constellation of pinpricks"--
Math for Real Life
“Where are we ever going to use this?” Every high school math student has asked this question. Often teachers themselves aren’t sure how to respond. One answer is that higher mathematics learned in high school will be essential to learning yet more at the college level. A more satisfactory answer calls for an awareness of how math is applied in many specific areas. Written primarily for teachers, this book presents hundreds of practical applications for mathematics—from baseball statistics to the theory of relativity—that can be understood by anyone with a knowledge of high school algebra, geometry and trigonometry.
NHI Catalog
None
Converting Paved Roads to Unpaved
"TRB National Cooperative Highway Research Program (NCHRP) Synthesis 485: Converting Paved Roads to Unpaved explores how common and under what conditions paved roads are converted to unpaved. NCHRP Synthesis 485 found that the practice of converting paved roads to unpaved is relatively widespread; recent road conversion projects were identified in 27 states. These are primarily rural, low-volume roads that were paved when asphalt and construction prices were low. Those asphalt roads have now aged well beyond their design service life, are rapidly deteriorating, and are both difficult and expensive to maintain. Instead, many local road agencies are converting these deteriorated paved roads to...
