Asphalt

Welcome to the Asphalt Channel, a special feature that provides the user an in-depth look at the hot-mix asphalt industry.  This section offers several areas to explore: product spotlights, article archives, related case studies, related video and product/supplier contact list.   

News April 18, 2016
The Georgia Department of Transportation (GDOT) has issued its notice to proceed to North Perimeter Contractors to begin work on the $800 million I-285/SR 400 Improvement Project in Atlanta.   According to GDOT, the corridor handles 420,000 vehicles. As of now the notice authorizes right of way...
News April 15, 2016
Nebraska this week saw passage of the Transportation Innovation Act (L960), a bill that increases funding for Nebraska transportation projects and authorizes design-build project delivery, Construction Manager/General Contractor delivery, and the use of public-private partnerships (P3s) for...

A completed riser project in Grand Rapids, Mich.

Case Studies April 14, 2016
Founded in 1916, Rieth Riley Construction is a large paving firm, serving Indiana and Michigan with 30 asphalt plants. With that kind of paving volume, and a nearly century-long history, the firm has rigorously tested hundreds of infrastructure solutions, and the tools and techniques that make the...
News April 11, 2016
Indiana’s East-West Toll Road is set to receive a $200 million makeover and work begins today. According to the Indiana Department of Transportation, it is to be the largest project undertaken by the toll road since its original construction in 1954.   The project’s scale includes the...
Article April 08, 2016
When the asphalt surface of U.S. 412 in southern Missouri required pavement preservation to repair cracking and increasing roughness, the project was scoped using diamond grinding as the primary preservation treatment.   Diamond grinding is a pavement preservation technique that improves pavement...
Article April 08, 2016
From the semi-arid northern plains to the humid subtropical piney woods, Texas’ sprawling network of roads—nearly 700,000 lane-miles of them—span multiple climates.   The temperature and landscape variances over such a vast area can wreak havoc on roadway maintenance. Many shortcomings arise when...

All lanes of traffic remained open during construction of the Redi-Rock retaining walls, which are designed to install quickly and within a small footprint.

Case Studies March 31, 2016
THE CHALLENGE In 2015, the Kentucky Transportation Cabinet (KYTC) began work on the multi-million-dollar New Circle Road widening project in Lexington. The scope of the project included nearly 3.2 miles of lane additions, shoulder widening, on-ramp and exit ramp realignment, and bridge widening...
Article February 29, 2016
Here’s a couple of things that don’t typically go well together: asphalt paving and the month of November in Missouri. There are, however, exceptions.   The rehabilitation of Hanley Road, which traverses the city of Clayton, Mo., was one of them.   For a few frazzled weeks last November, crews from...
Article February 29, 2016
Driving down SH 13 today, it is hard to imagine that the span of road was once stricken by numerous signs of deterioration, but the Colorado Department of Transportation (CDOT) was able to restore the road back to pristine condition over the course of only five months.    SH 13, located in Rio...
Article February 29, 2016
For the past several years, the Colorado Department of Transportation (CDOT) has been evaluating the use, primarily in the southwestern part of the state, of a thin asphalt leveling course followed by a single-lift asphalt overlay for its road rehabilitation projects.   The aim of such a...
Article February 29, 2016
Mountain States Constructors Inc. is used to working in the mountains, making roads out of nothing. In the summer of 2015, looking up at concrete and steel, the New Mexico-based contractor was right in its element.   Work on a section of I-40, which consisted of 35 lane-miles and 10 ramps (some...
Article February 29, 2016
Drivers traveling on I-70 in De Beque Canyon, Colo., may notice that the highway now feels much smoother.   They might give this a passing thought of appreciation, but then forget about it completely, simply taking for granted that this small aspect—an easier means of getting to work or school or...
Article February 29, 2016
Durability issues are a leading cause of asphalt pavement deterioration and eventual failure.   Aggregate quality standards and mix design requirements have helped to resolve rutting issues, and performance-graded binders and binder selection guidelines have made major inroads in controlling...

Redi-Rock retaining walls were used to provide structural support for the security access road rerouted beneath the runway at the Louisville International Airport.

Case Studies February 29, 2016
When the Louisville International Airport needed to extend a runway, engineers were challenged to relocate a security access road that ran through the proposed extension site. With no space to move the road and utilities, engineers decided to reroute the road through a tunnel beneath the runway.  ...
News February 10, 2016
The Colorado Department of Transportation (CDOT) is eyeing a $1.2 billion road widening project on a major interstate in the state.   CDOT is planning to remove a viaduct and widen a 10-mile stretch of I-70 in north Denver, starting in 2017. I-70 will be widened from three lanes to four in each...
Article February 09, 2016
In the 1970s, the oil shock caused by the Arab Oil Embargo led to petroleum shortages and long lines of drivers hoping to fill their tanks. Although less visible to the general public, the asphalt pavement industry also had to adjust its practices to manage tightened supplies of asphalt binder....
Article February 09, 2016
A two-lane blacktop road in Cortland County, N.Y., benefited from a sophisticated pavement preservation overlay that combined two lifts and two types of cold mix pavement that are anticipated to provide a high level of service in the years to come.   It’s no secret that local government agencies...
Article February 09, 2016
Pennsylvania’s S.R. 6 describes an almost riveresque course through Wyoming and Lackawanna counties, the topography of which ranges from urban centers to rolling hills of pure greenery.   The S.R. 6 Lackawanna Trail restoration project runs through the northern half of Lackawanna County and the...
Article February 09, 2016
There is a theory that too many cooks in the kitchen makes for a lousy sauce.   But this isn’t strictly the case, as evidenced by a major interstate project in Washington State.   Two major challenges faced the I-405 Express Lanes project, which ran from Bellevue to Lynnwood along a 17 mile...
Article February 09, 2016
What does it take to create a superbly smooth pavement?   The formula applied by Hutchens Construction for a recent project on Highway 62 in northwest Arkansas involved a bit of technology, a devotion to best practices and some wisdom from an ancient Greek philosopher.   In late 2013, Nabholz Corp...
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