April 26, 2018
The Arizona Department of Transportation (ADOT) is adding unmanned aerial vehicles (UAVs) to help its engineering staff safely and more efficiently inspect bridges and perform surveying work along state highways.
Through a federal innovative technology grant, ADOT has eight new aerial drones that...
April 04, 2018
Work on I-90 in the Chicagoland area in the summer of 2016.
The rapidly deteriorating condition of Illinois roads, bridges, and transit systems is producing increased congestion and vehicle maintenance costs, and the annual cost of needed repairs currently stands at $4.6 billion per year, according to a new study released today by the Illinois Economic...
April 03, 2018
A total of 280 cores were collected for observation and lab testing in Minnesota.
Identifying the factors that contribute to chip seal, or seal coat, performance has been a pavement engineering research concern for many decades, with studies on surface treatments dating back to 1928.
Recent pavement engineering studies have provided sound, general advice on the use of chip...
March 02, 2018
The Fast Lane Grant provided $60 million for a $183 million road project on I-10. Image: LADOTD
Protection keeps system exposed
by Bill Wilson, Editorial Director
Nobody wants to put someone to work lining up hospital beds beside a dumpster.
Taking care of the health of any community should always be put in the forefront, even if roads and bridges are left wrapped in bandages....
February 26, 2018
When visitors drive by the portion of S.R. 299 in California known as Big French Creek, they may notice the rock-fall protection fence or perhaps other improvements; but they most likely have no idea what local residents, the traveling public and the California Department of Transportation (...
February 02, 2018
Nestled along the shoreline of Lake Michigan, at the mouth of the Grand River lies the small community of Grand Haven, Mich.
Grand Haven is the heart of Ottawa County, where more than 65% of the county’s area is covered by water. So, as you weave around the small community, flush with trees and...
February 02, 2018
All photos by Dave Gonzalez, Minnesota DOT.
In snowy states, winter maintenance crews deal with everything from freezing rain and black ice to blizzards and even avalanches.
To prepare plow drivers for whatever Mother Nature has in store, state DOTs and other agencies kick off each winter season with training classes.
While all states...
December 11, 2017
In this video from the Mississippi Department of Transportation (MDOT), Melinda McGrath, P.E., executive director of MDOT, answers questions about the process for pre-treating and maintaining roadways during a winter weather event. Mississippi is currently experiencing ice on roads and bridges in...
December 05, 2017
Five recently configured dual-wing plows will be used primarily along eastern Oregon multi-lane freeways.
“Winter isn’t over til it’s summer.”
That’s the story heard from winter maintenance workers out on the roads in the Cascade Mountains in Oregon, as the mountain range sees snowfall from as early as September to as late as May. It is in this region that most of the snowplows in the state of Oregon...
December 05, 2017
With winter now upon us, Roads & Bridges spoke with Eric Hartmann, vice president of sales and marketing for Tovar Snow Professionals, about best practices for snow and ice control, the importance of off-season training, and more.
RB: Your firm has offices all over the country, so you face...
December 05, 2017
Winter road maintenance could be getting more efficient thanks to the Grip, a black-ice detection system from two Finnish research organizations.
The two firms—EEE Innovations and VTT Technical Research Centre of Finland—developed the system to accurately detect slippery road conditions in real-...
December 04, 2017
Work on abutments for the Laurel Street Overcrossing Replacement Project in Vallejo, Calif. Image: Caltrans
At the forefront
by Brian W. Budzynski, Managing Editor
There’s progress and then there’s progress, and those who know the difference can only be encouraged by some of the developments taking place in California.
As a result of the recent 12-cents-per-gallon gas tax increase passed...
November 20, 2017
Image: Puerto Rico DTOP via AASHTO Journal
Gov. Ricardo Rosselló is asking the Trump administration and Congress to provide Puerto Rico with more than $5.84 billion in disaster aid just to cover repairs to the island territory's hurricane-damaged roads, bridges, seaports and airports.
That is part of a total $94.4 billion aid request he...
November 17, 2017
Washington State Department of Transportation (WSDOT) workers completed a second avalanche bridge on I-90 this past week in an eight-year effort to increase safety and traffic flow on Snoqualmie Pass.
The effort is part of phase one of a 15-mile project, stretching from Hyak to Easton. Phase one...
November 15, 2017
Iowa drivers are presently paying 10 cents more per gallon than they did just a few years ago, and while tax increases are no friend to most political leaderships, in Iowa benefits are already being realized.
The state’s gas tax hike has produced an extra $515 million for state and local...
October 26, 2017
President Trump and Secretary of Transportation Elaine Chao have announced the Unmanned Aircraft Systems Integration Pilot Program, an initiative aimed at exploring expanded use of drones. The new program will allow companies and local governments to use drones in ways that the Federal Aviation...
October 24, 2017
The city of St. Cloud and county of Anoka in Minnesota were both looking to enhance the performance of their salt brine operations. In 2015, St. Cloud used over 81,000 gal of salt brine and purchased 2,290 tons of salt. Anoka County is responsible for maintaining and clearing snow and ice from 423...
October 03, 2017
The U.S. Department of Transportation’s Federal Highway Administration (FHWA) on Thursday announced the immediate availability of $40 million in “quick release” Emergency Relief (ER) funds to help restore essential service on roads and bridges damaged by Hurricane Maria throughout Puerto Rico.
September 28, 2017
Researchers from Drexel University, Purdue University and Oregon State University have discovered that adding paraffin oil to the mix for road concrete can give it the ability to melt ice and snow when temperatures fall.
Image: Drexel University
Drexel University researchers have recently made a discovery that could create roads that deice themselves during winter storms. The secret? Adding a little paraffin wax to the road's concrete mix.
In a paper published for the journal Cement and Concrete Composites, researchers, led by Yaghoob...
September 28, 2017
If you have ever built anything, you have probably heard the old saying, “Measure twice, cut once.”
The first time you did not follow it, you quickly learned the lesson. Making an accurate measurement is important, otherwise you end up wasting time. If you think of weather, have you ever wondered...