Oregon comprises a wide variety of climatic regions, but one of the constants in its heavily populated areas-the western third of the state-is rain. Parts of the state receive...
Earlier this year, the Washington State Department of Transportation (WSDOT) started work on two large roadway projects in metropolitan King County, southeast of downtown Seattle...
Editor's note: This is the second installment of a two-part series on asphalt compaction. In the August issue, Scherocman, a consulting engineer in pavement design and construction...
In 1961, only 7% of all vehicle travel in the U.S. was on interstate highways; by 1989, that figure had more than tripled. Accompanying this rise in limited-access road usage ...
Projects to shed light on UTW The remarkable performance of the 1991 Ultra-Thin Whitetopping (UTW) experiment in Louisville generated much interest in this innovative concept ...
Open-graded friction course (OGFC) mixes have been around longer than many contractors or department of transportation officials may recall. As early as the 1930, Oregon was using...
Transmissions that shift themselves have emerged as major players in the big truck field this year. While the history of fully automatic and semi-automatic gear boxes can be told...
In highway-construction bidding, rarely does a disappointed bidder overturn a decision by state or local government officials because to do so generally requires a finding that...