Public roads
By: U.S. Department of Agriculture, Bureau of Public Roads
Publisher: U.S. Dept. of Agriculture, Bureau of Public Roads; G.P.O.
Published: 1919
Place of publication: Washington, D.C
Language: eng
Number of pages: 36
Subjects: Roads
Table of contents: title: Granite block construction; title: Instrument for measuring wear of concrete and other surfaces; title: Constructing Pennsylvania Federal Aid Project No. 12; title: What frost does to concrete; title: Big road projects included in July and August approvals; title: Bridge approaches; title: New method for adjusting earth excavation and determining haul; title: Comprehensive investigations of highway engineering needed.