News

NCAT RAP mix evaluation

Image: NCAT

Asphalt News August 30, 2018
Cargill is partnering with the National Center for Asphalt Technology (NCAT) in Opelika, Ala., and the Minnesota Department of Transportation’s (MnDOT) MnROAD program in Albertville, Minn., to determine how to best implement performance-engineered mix design procedures, especially in mixes...
Margaret and Williams Street intersection

The intersection at Margaret and Williams Street, which sees an ADT volume of 9,900 vehicles.

Asphalt Paving Article April 03, 2018
The village of Thornton, Ill., is about 25 miles south of downtown Chicago and 4 miles west of the Illinois/Indiana border, situated with access to the Illinois Tri-State Tollway, Illinois Rte. 1 (Halsted Street) and I-80.   The western portion of Thornton sits above 400-ft-deep sedimentary...
I-65 resurfacing Kentucky
Asphalt Paving Article March 02, 2018
Scotty’s Contracting, out of Bowling Green, Ky., has a long familiarity with I-65.   They have been the prime contractors on a comprehensive expansion of 92 contiguous miles of the interstate in the state of Kentucky—work that dates back to the 1990s and is presently still ongoing near...
U.S.  74 Charlotte

Image: NCDOT

Asphalt Paving Article March 02, 2018
As much of a headache as it may be for one contractor to finish a job started by another, it could be even trickier when the road widening project in question is out of phase and has an uneven intermediate surface course.   That is precisely what Lane Construction Corp. had to work with when they...
U.S. Rte. 17-74-76

NCDOT wanted to expand U.S. Rte. 17-74-76 from four lanes to six lanes.

Asphalt Paving Article March 02, 2018
The North Carolina Department of Transportation (NCDOT) needs to feel like a kid at a vegetable stand.   Up until this year, the NCDOT gazed upon candy that was stacked high . . . 12-high to be exact. That is how many mixes the state agency could choose from for an asphalt paving project. Now it is...
NMDOT Rte. 26
Asphalt Paving Article February 12, 2018
Originally constructed in 1905 by the Territorial Legislative Assembly, and containing segments of the old Rte. 26 from Deming to Nutt and a stretch from Nutt to Hatch (which were originally Rte. 27), Rte. 26 in New Mexico was shown, in a map dated 1927, as a “first class” road between Deming and...
Tower Road live traffic paving

Traffic never stopped flowing during the Tower Road widening project.

Asphalt Paving Article February 01, 2018
Prolonged residential growth in the northeast portion of the Denver Metro area, along with expansion and continued development at Denver International Airport, has led to massive increased traffic and congestion along Tower Road, bringing movement through the corridor to a grinding halt during peak...
Asphalt Paving News August 21, 2017
On Aug. 18, 2017, the editorial staff of Roads & Bridges magazine visited the $2.3 billion I-4 Ultimate project in Orlando, Fla. The 21-mile project site is presently at the midpoint of its construction, and the scale was enormous. We brought our 360 camera along for the trip. Here's another...
Colorado project embraces new approach
Asphalt Paving Article July 05, 2017
Unforeseen subgrade conditions, work-hour and construction-zone restrictions, heavy truck traffic and working in part of a floodplain—all these issues were encountered during the reconstruction of 30 miles of U.S. Rte. 85 (Ault to Wyoming) in northern Colorado.   Each of the issues had the...
Construction projects in dense urban or suburban areas are among the most crucial to our national infrastructure, yet they also tend to be the least applauded.
Asphalt Paving Article March 02, 2017
Construction projects in dense urban or suburban areas are among the most crucial to our national infrastructure, yet they also tend to be the least applauded.   There are no gorgeous vistas to consider in photographs, no access offered on completion to theretofore unreachable beauties. Mostly,...
Large church, huge operation made SH 74 challenging
Asphalt Paving Article March 02, 2017
They attended to the church regularly.   Old State Highway (SH) 74 in Oklahoma City had been servicing cars for about a century, and the two-lane road, which was without shoulders, had been out of its element for years. With an average daily traffic of 30,000 (about 30% coming from trucks) people...
NAPA recognizes paving work on two- to five-lane expansion of S.R. 36 in Washington County, Tenn.
Asphalt Paving Article March 02, 2017
Where could transportation officials turn to in the event of a serious incident on an interstate highway that required them to divert traffic elsewhere?   When it comes to I-26, the answer for the Tennessee Department of Transportation (TDOT) was S.R. 36, a corridor that parallels the interstate...
Indiana DOT is not too anxious to return to warranties, but agency is interested after seeing positive results
Asphalt Paving Article February 09, 2017
After federal regulations resulting from the Intermodal Surface Transportation Efficiency Act of 1991 (ISTEA) lifted a long-standing ban on using pavement warranties, many states across the U.S. experimented with various types of warranties.   Prior to ISTEA, the Federal Highway Administration (...
Brian Devick, mayor of Woodward, Iowa
Asphalt Paving Article February 09, 2017
Christopher Columbus was a man with a vision. Meriwether Lewis and William Clark were men with a vision. Brian Devick, mayor of Woodward, Iowa, too is a man of vision.   The citizens of this small, central Iowa town will benefit from his vision for decades to come. In the summer of 2015, the vision...
Conn. tests overlay potential for conventional equipment
Asphalt Paving Article December 06, 2016
The ability to safely slow and stop a vehicle is not only dependent upon its tires, but also the surface characteristics of the pavement.   Pavement surfaces can be constructed with a more open surface texture to provide greater macrotexture for better high-speed performance during wet-pavement...
Determining the optimum thickness of perpetual pavement in Ohio

Image source: thawornnurak 123RF

Asphalt Paving Article December 06, 2016
When designing typical highway pavements, engineers at the Ohio Department of Transportation (ODOT) strive to construct pavement structures that carry projected traffic loading for 20 to 25 years with little to no major maintenance.   However, Ohio currently has several asphalt concrete (AC)...
Moisture absorption of nearby trees along with shrinking soil is causing major damage to highways in the state
Asphalt Paving News November 29, 2016
The drought in Mississippi this year is not only affecting recreational activities such as bonfires and camping, but is also affecting the state’s highways, according to the Mississippi Department of Transportation (MDOT).   “Our roads have suffered the effects of extreme loss of rainfall...
Crews zero in on moisture damage at Watkins Glen
Asphalt Article June 07, 2016
They did not travel long distances to see the weeping track. In fact, I doubt many racing fans in the New York region saw the strange phenomenon.   Asphalt pavement weeping happens when moisture collects in the sub-base and is pushed to the surface through a crack. Water on a racetrack is bad...
Massive Indiana East-West toll road project
Asphalt 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...
Texas looks to update test, specs for chip seals
Asphalt 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...
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