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.   

Lake of the Woods County, Minn., full-depth reclamation
Case Studies April 19, 2019
Tim Erickson, Lake of the Woods County, Minn., engineer, was looking for the best solution to rehabilitate County State Aid Highway (CSAH) #8. This was a 5.2-mile project in the heart of the county’s fishing resort and agriculture industries. It was crucial that whatever the county did to address...
A close-up view of Mastic One applied to a transverse crack on County Road 13 in Nicollet County, Minn.

A close-up view of Mastic One applied to a transverse crack on County Road 13 in Nicollet County, Minn.

Case Studies April 17, 2019
The Nicollet County (Minn.) Highway Department needed to repair transverse cracks on County Road 13. This two-lane road has annual traffic of approximately 300,000 vehicles, including large tractor-trailers. In addition to traffic, the fluctuating Minnesota weather plays a factor in creating...
The first course of concrete panels are set and braced around the existing steel trestle.
Case Studies April 11, 2019
Merchants Bridge crosses the Mississippi River, connecting St. Louis, Mo., to Venice, Ill. The bridge was initially constructed in the late 1800s and is the oldest rail structure crossing the Mississippi River. Among the many maintenance activities throughout the 1900s, the original timber trestles...
St. Charles, Missouri; adjustable manhole risers
Case Studies April 05, 2019
With a population of 66,000, St. Charles is Missouri’s ninth-largest city, and was the state’s capital from 1821 to 1826.   “We have old and new areas, which means we have a lot of odd-sized sewer structures,” the city's Lead Equipment Operator Cory Rackley said. “Adjustable risers make it much...
U.S. 64 Mississippi
Article April 01, 2019
This article summarizes key findings from a longer-term aging experiment in Mississippi that is a partnership of APAC-Mississippi, Ergon Asphalt & Emulsions, the Mississippi DOT and the Mississippi State University Construction Materials Research Center (CMRC).   Experiments began in November...
Nicole Nason
News April 01, 2019
By a vote of 95 to one, the U.S. Senate confirmed Nicole Nason to lead the Federal Highway Administration (FHWA) on March 28.   Nominated by President Trump on Jan. 3 as the next FHWA administrator, Nason emphasized in her confirmation testimony that she plans to pay particular attention to...
road, bridge infrastructure funding proposal
News March 28, 2019
Minnesota Senator Amy Klobuchar, who is making a run as a Democratic presidential candidate for the 2020 race, today released a trillion-dollar proposal to help rebuild the nation's roads, bridges and other infrastructure projects.   According to the details of the plan from her campaign, Klobuchar...
MnDOT cone penetration testing 1
Article March 25, 2019
The Minnesota Department of Transportation (MnDOT) Foundations Unit is responsible for providing geotechnical engineering services to a variety of internal clients including the Bridge Office as well as the design, construction, and maintenance groups within eight regional MnDOT districts. While...
steep, cut slope in road reconstruction project, Devon, U.K.
Case Studies March 20, 2019
A $10.3 million project in Devon, U.K., necessitated the reconstruction of a half-mile single-lane road designed to reduce congestion and support economic development in the area. The approved route required a significant amount of material (nearly 131,000 cu yd) on adjacent slopes to be excavated...
oversize/overweight permit for trucks Illinois DOT
Case Studies March 14, 2019
The Illinois DOT (IDOT) must find a safe route for trucks traveling in the state of Illinois and issue an oversize/overweight (OS/OW) permit for trucks carrying large loads. With slow, manual permitting processes, IDOT sought to update and automate its permitting system. IDOT implemented the...
braided ramps; highway construction; I-15 Utah
News March 06, 2019
The Utah DOT (UDOT) has approved the selection of the braided ramps option design for the interchange at Main Street (S.R. 115) and I-15 in the city of Payson.   UDOT issued a Record of Decision (ROD) regarding the selection of the braided ramps as the preferred alternative out of several design...
Alaska quake damage
Article March 04, 2019
At 8:29 a.m. on Friday, Nov. 30, 2018, the earth started rocking and shaking in Anchorage, Alaska.   At the Alaska Department of Transportation and Public Facilities (DOT&PF) headquarters, ceiling tiles fell on desks, shelves and their contents spilled onto the floor, and families anxiously...
I-65 in Clark County, Ind.
Article March 04, 2019
More often than not on a paving job, it’s not the paving itself that proves to be the most challenging aspect—it’s handling the traffic.   Live traffic in close proximity to an active work zone presents numerous challenges and dangers, not least of which is worker safety. But the placement of a...
South Carolina I-85
Article March 04, 2019
It’s impossible to convince rain to come again another day. Sloan Construction tested this hypothesis more times than it needed to.   Dark storm clouds meant extra work for the contractor, at least at the start of the I-85 project in South Carolina. An 11.8-mile stretch of highway was in such bad...
I-10 Riverside County, Calif.
Article March 04, 2019
When working on one of the largest pavement rehabilitation projects in the history of the California Department of Transportation (Caltrans) on one of the busiest interstate highways in the U.S., any contractor is going to have their work cut out for them.   Such was the task that Granite...
NCAT test track
Article March 04, 2019
Located on a 309-acre site, the 1.7-mile NCAT Pavement Test Track is a world-renowned accelerated pavement testing facility that combines full-scale pavement construction with live, heavy truck trafficking for rapid testing and analysis of asphalt pavements.   Since its original construction in...
MnDOT geotechnical  asset performance
Article March 04, 2019
Moving Ahead for Progress in the 21st Century (MAP-21) is the federal law that lit a fire under state departments of transportation.   It called on them to institutionalize asset management and performance standards as they implement innovative technologies, practices, and policies. MAP-21 and...
Modernize 75 highway construction Michigan

Image: Modernize 75 via Facebook

News February 27, 2019
The Michigan DOT (MDOT) announced that work on segment 2 of the I-75 modernization project in Oakland County will begin this week on Thursday, Feb. 28.   This $224 million project will involve reconstructing more than 8 miles of pavement, improving 18 structures, upgrading drainage, constructing...
SH 99 Grand Parkway in Houston tolling project

Image: SH 99 Grand Parkway via Twitter

News February 26, 2019
The U.S. DOT recently announced that the Build America Bureau will provide up to $605 million in a Transportation Infrastructure Finance and Innovation Act (TIFIA) loan to the Grand Parkway Project’s H & I Segments in Houston.   The Grand Parkway is a tollway construction project in the Greater...
bridge design software
Case Studies February 18, 2019
Compared to other bridges, pedestrian bridges have it easy. After all, people are nowhere near as heavy as motor vehicles, tractor-trailers or trains. Because pedestrian bridges are built to bear smaller, lighter loads, architects and engineers are able to achieve an altogether different vision—...
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