News

Culvert Repair / Rehabilitation Case Studies March 29, 2017
A large corporation in the Boulder, Colo., area experienced a serious situation on its property when a pair of 48-in. elliptical corrugated metal pipes (CMP) collapsed in the immediate vicinity of many critical utilities. The pipes were located at the very end of the storm-water system that handles...
Safety News March 29, 2017
The Federal Highway Administration, the state of Georgia, local government organizations and employers are partnering with the U.S. Department of Labor’s Occupational Safety and Health Administration (OSHA) to sponsor one-hour events to train road workers on the dangers of distracted drivers,...

Image source: Michael Short, Special to The Chronicle

Demolition News March 29, 2017
California Department of Transportation (Caltrans) demolition crews began dismantling the final section of the old eastern span of the Bay Bridge Tuesday, removing the last remnants of a structure that graced the San Francisco Bay skyline for more than 80 years.   The 288-ft truss is the last of 19...
Compaction Products March 28, 2017
Volvo Intelligent Compaction, Compact Assist for Asphalt with Density Direct, is changing how roadbuilders work—providing real-time density calculations over 100% of the mat. By eliminating guesswork and reducing core sampling, contractors can save time, improve mat quality, and increase...
Bridges Products March 28, 2017
A simple construction sequence and efficient design allows InspirArch to accommodate the most straight-forward or complex medium span bridge configurations. Formerly known as Bridge-in-a-Backpack, with ten years of R&D, the system has been recognized for its innovation as a low-cost and high-...
Equipment Products March 28, 2017
Johnston’s “Easy Sweep” mechanical sweeper is matched with Freightliner’s M2 chassis, and together they offer performance, a level of comfort and drivability that any operator will appreciate. This proven single-engine design blends a collection of features which provides ownership advantages such...
Barrier Walls Guardrails Products March 28, 2017
Gregory’s all-steel Guardian 5 (G5) is the only MASH TL-5 longitudinal barrier capable of redirecting a fully loaded 80,000-lb vehicle. This safer and more economical alternative to concrete barriers is effective in areas with high truck volumes, heavy congestion, narrow medians and the protection...
Equipment Products March 28, 2017
Super Air Meter values closely correlate with air void spacing in fresh concrete for better prediction of long-term freeze thaw durability than total air content alone. Results for both air void spacing and standard air content are determined on-site in 10 minutes instead of waiting weeks for...
Safety Products March 28, 2017
Ergodyne introduced five more innovative tool lanyards to their Squids Tool Tethering Line that absorb up to five times as much shock as competitors.
Snow / Ice Removal Equipment Products March 28, 2017
The Freedom MDC plow control system from Certified Cirus Control Systems incorporates CAN-bus (controller area network) technology and two- or three-joystick control in a compact package well suited for medium-duty applications. The system is ground-speed oriented and depending on the model,...
Sign Posts Products March 28, 2017
3M Diamond Grade Flexible Roll-Up Sheeting Series RS60/64I combines the quality and reflectivity of permanent signs with the convenience, portability, and lasting flexibility needed for temporary traffic control. Series RS60/64I helps alert motorists with highly conspicuous fluorescent colors and...
Pothole Patching Products March 28, 2017
One-man P5 DuraPatcher from Cimline is the safest spray-injection pothole repair that involves four steps for permanent repairs in minutes. In-cab joystick controls all function through the nozzle on boom. The pothole patcher includes self-contained on-board emulsion and aggregate. The digital...
Intelligent Transportation Systems ITS News March 28, 2017
The Pennsylvania Department of Transportation (PennDOT) recently completed installation of a $1.35 million intelligent transportation system (ITS) at nine intersections along a three-mile stretch along McKnight Road between Evergreen Road in Ross and Peebles Road in McCandless.   The system will be...
Safety Products March 28, 2017
Diamond Grade flexible roll-up sheeting Series RS60/64I combines the quality and reflectivity of permanent signs with the convenience, portability and lasting flexibility needed for temporary traffic control. It helps alert motorists with highly conspicuous fluorescent colors and is optimized for...
Crack Sealing Case Studies March 28, 2017
Cleburne, Texas, located about 30 miles south of Fort Worth, is the county seat of Johnson County. Like most cities in the United States, road maintenance is a major concern there.   In 2015, Cleburne city officials knew something had to be done about the number of roads in need of repair due to...
Intelligent Transportation Systems ITS News March 28, 2017
Following a crash involving one of it’s self-driving ride-share vehicles this past Friday, Uber has lifted its temporary suspension of self-driving activities in both Pittsburgh and Tempe, Az., and put its autonomous test fleet back into service.   The Volvo SUVs are now back into rotation with the...
Intelligent Transportation Systems ITS News March 27, 2017
Uber has announced that it will suspend its self-driving car program after one of its autonomous vehicles was involved in a high-impact crash in Tempe, Az. The ride-hailing company is suspending its autonomous tests in Arizona until it completes its investigation and pausing its Pittsburgh...

Photo source: 123rf/kittiyaporn10

Bridges News March 27, 2017
A team of research technicians from the Bowen Laboratory at Purdue University’s Lyles College of Civil Engineering recently employed a sensor system developed by the Bridge Engineering Center at Iowa State University on the CR 250 E bridge in Lebanon, Ind., for a load bearing test that could...
Asphalt Products March 27, 2017
Liquid Road is a high-performance mineral- and fiber-reinforced asphalt emulsion blended with polymers and special surfactants for adhesion, flexibility and durability. It replenishes the binder that is lost through oxidation and weathering, while it provides a slip-resistant durable surface...
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