T. R. Agg

PREFACE

CONTENTS

AMERICAN RURAL HIGHWAYS

Chapter I THE PURPOSE AND UTILITY OF HIGHWAYS The Development of Highway Systems

Chapter II HIGHWAY ADMINISTRATION

Chapter III DRAINAGE OF ROADS

Chapter IV ROAD DESIGN

Chapter V EARTH ROADS

Chapter VI SAND-CLAY AND GRAVEL ROADS

Chapter VII BROKEN STONE ROAD SURFACES

Chapter VIII CEMENT CONCRETE ROADS

Chapter IX VITRIFIED BRICK ROADS

Chapter X BITUMINOUS ROAD MATERIALS AND THEIR USE

Chapter XI MAINTENANCE OF HIGHWAYS

INDEX

Transcriber's Note

Every effort has been made to replicate this text as faithfully as possible, including obsolete and variant spellings and other inconsistencies. Text that has been changed to correct an obvious error is noted at the end of this ebook.

AGRICULTURAL ENGINEERING SERIES

E. B. McCORMICK, Consulting Editor

FORMERLY DEAN OF ENGINEERING DIVISION
KANSAS STATE AGRICULTURAL COLLEGE

AMERICAN
RURAL HIGHWAYS

McGraw-Hill Book Co. Inc.

PUBLISHERS OF BOOKS FOR

Coal Age — Electric Railway Journal
Electrical World — Engineering News-Record
American Machinist — Ingenieria Internacional
Engineering & Mining Journal — Power
Chemical & Metallurgical Engineering
Electrical Merchandising

AMERICAN
RURAL HIGHWAYS

BY

T. R. AGG, C.E.

PROFESSOR OF HIGHWAY ENGINEERING
IOWA STATE COLLEGE

First Edition

McGRAW-HILL BOOK COMPANY, Inc.

NEW YORK: 239 WEST 39TH STREET

LONDON: 6 & 8 BOUVERIE ST., E. C. 4

1920

COPYRIGHT, 1920, BY THE
McGRAW-HILL BOOK COMPANY, INC.