July 30, 2018
A six-year study of hot-mix asphalt preventive maintenance techniques conducted by the Washington State Department of Transportation (WSDOT) indicates that a range of treatments can effectively extend pavement life—using a combination of crack sealing, chip sealing and dig outs—for five years or...
July 24, 2018
On highway M-20, east of New Era, Mich., a 70-ft metal plate arch culvert was experiencing moderate to severe section loss in the invert from corrosion and abrasion. The steep decline in condition due to corrosion was attributed to the intermittently flowing creek and the invert’s frequent exposure...
July 05, 2018
ODOT was able to merge 25 years of road and bridge work into just four due to innovative financing.
A fantastic fury
Bill Wilson, Editorial Director
Located in northwest Ohio, the city of Toledo has just as many University of Michigan devotees as it does Ohio State University fans.
The area is used to times of fury, but non-stop for four years straight? Hard to imagine, but it is all...
July 02, 2018
With continued partisan gridlock in the U.S. Congress, it has been difficult for meaningful federal transportation initiatives to roll forward–and progress is likely to remain stalled until 2019 or later. President Trump admitted as much in a late-March speech when he predicted, “You’ll probably...
June 26, 2018
On April 7, a significant landslide resulted in the closure of Pennsylvania S.R. 30 in Allegheny County. The route is a principal artery to Pittsburgh and supports more than 22,000 vehicles per day. The slide demolished one apartment building, severely damaged another, and impacted a single-family...
June 25, 2018
The Hawaii Department of Transportation (HDOT) issued an emergency contract on June 19 for additional flood repair work on the Kuhio Highway aimed at stabilizing the slope above the highway, which is also known as Rte. 560, between Waikoko and Wainiha and various other downslope sites.
June 15, 2018
California Department of Transportation (Caltrans) officials are looking to reopen a stretch of SH 1 in the Big Sur coastal region this summer that was blocked last year by a massive landslide.
The road that connects Los Angeles to San Francisco was projected to open in mid-September but Caltrans...
June 12, 2018
Image: Domino's Pizza via Yahoo Finance
Domino’s Pizza is filling potholes in towns across the U.S. with its new "Paving for Pizza" initiative.
The American pizza chain announced this week that it will help smooth rides for deliveries by making pothole repairs in towns nominated by their customers.
Domino’s is offering to fill cracks...
June 05, 2018
A TTI vehicle equipped with LiDAR technology to collect roadway data.
When we think of a roadway, most of us think of the asphalt or concrete that we are riding on.
Little thought is given to the ditches that line our roads or how water flows off our roadways. A Texas A&M Transportation Institute (TTI) researcher has come up with an automated way of determining...
June 05, 2018
Clearing snow from roadways is an effort as old as roadways themselves, at least in cold climates.
Truck-mounted plows came into wide use in the 1920s. Abrasives such as sand, coal bottom ash or clinker were used to increase friction on icy roadways, once plowed. During the winter of 1941-42, New...
May 30, 2018
Gov. Bruce Rauner announced a plan for Illinois to invest $11.05 billion in the state’s roads and bridges over the next six years, including $2.2 billion of state and federal funding in the upcoming fiscal year.
The Illinois Department of Transportation Multi-Year Proposed Highway Improvement...
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...