October 17, 2014
Accelerated construction from 17 to 13 days was achieved by the contractor’s hour-by-hour construction plan and 24-hour work schedule.
The Rte. 6 Bridge Deck Replacement Project Team took a hard look at a range of traffic-mitigation scenarios from full closure to a one-lane road with alternating traffic. After assessing cost of delay up to $80,000 per day, an addition of up to 60 minutes of travel time and potential for 3- to 4-...
September 09, 2014
The NGCS consists of diamond grooving a surface using 3.2-mm-wide longitudinal grooves saw-cut to a depth of 3-5 mm at 12.5- to 16-mm centers.
Australia’s Roads and Maritime Services (RMS) recently constructed several test sections utilizing diamond saw-cut textures on their concrete pavement as part of a continued effort to minimize tire-pavement road noise. The completed research has resulted in the development of a low-noise-diamond-...
August 08, 2014
Decades of heavy use have taken a toll on I-5 north of Seattle. The concrete is cracked, chipped and bumpy in many places. Now a new highway preservation project will address some of the worst areas between Northgate and Shoreline.
On Monday, Aug. 11, contractor crews from Granite Construction Co...
August 05, 2014
Ballard Greenways group is one of more than 20 local grassroots groups that have sprung up in the past three years under the umbrella of Seattle Neighborhood Greenways.
Michael Wolf sits on his front porch on the new 58th Avenue NW Greenway and watches the world go by.
It has been just about a year since the neighborhood greenway in front of his house in the Ballard neighborhood of Seattle officially opened.
“I see moms on family bikes with a few kids behind...
August 05, 2014
The Hynes Convention Center is located in the heart of Boston’s historic Back Bay neighborhood.
Portions of the Hynes are located directly over I-90, the Massachusetts Turnpike. A 50-year-old cast-in-place concrete slab, suspended from the underside of the Hynes, serves as the ceiling for the...
August 01, 2014
The city of Varenne, Québec, is on a mission to improve the safety of Canadian highways while saving taxpayer dollars. After recently completing a bridge replacement project on Autoroute 30, the city of Varenne decided to upgrade already-installed road departure devices.
July 23, 2014
Roads and bridges that are deficient, congested or lacking desirable safety features cost Texas motorists a total of $25.1 billion statewide annually—more than $1,700 per driver in the Dallas-Fort Worth-Arlington area—due to higher vehicle operating costs, traffic crashes and congestion-related...
July 17, 2014
Tunnel vision can improve; just ask those at the Nevada Department of Transportation.
The agency is about to complete the Carlin Tunnels project on I-80, and the highlight of the enhancement is an LED lighting system that will enhance driver visibility by dimming or brightening according to...
July 11, 2014
America’s rural heartland is home to nearly 50 million people, and its natural resources provide the energy, food and fiber that support the nation’s economy and way of life. But, a new report finds that the nation’s rural transportation system, which is critical to the nation’s booming agriculture...
July 09, 2014
The Illinois Tollway continued construction this week on the 75th Street Interchange on the Tri-State Tollway (I-294). Temporary, overnight ramp closures are scheduled to begin on the ramps connecting 75th Street to northbound I-294. Electronic message signs and directional signs will be put in...
July 08, 2014
Husqvarna unveils a new generation of flat saws in this video. These saws comply with EPA Tier 4 regulations through modern diesel engine technology.
June 24, 2014
The Florida Department of Transportation (FDOT) recently completed major improvements to a section of the John Young Parkway/S.R. 423 in Orange County.
The $41.8 million design-build project involved the widening of the existing roadway from four to six lanes from Shader Road to the U.S. 441/Orange...
June 11, 2014
The Elizabeth River Tunnels (ERT) Project team has begun the process of towing down the first six of 11 tunnel sections for the new Midtown Tunnel. The tunnel elements will be towed from the SKW Constructors JV fabrication facility in Sparrows Point, Md., to the Portsmouth Marine Terminal in...
May 28, 2014
The Port Authority of New York and New Jersey has finished the bulk of major repair work ahead of a 60-day schedule on one of Newark Liberty International Airport's major runways, allowing a resumption of flights on typical patterns at New Jersey's busiest airport.
Runway 4L-22R reopened as a...
May 27, 2014
QUIKRETE FastSet Latex Modified DOT Overlay is a fiber-reinforced, very low permeability, rapid-setting overlay material specifically designed to fast track concrete bridge deck repair and to extend the service life of concrete bridge decks. The material contains an integral corrosion inhibitor and...
May 08, 2014
The International Center for Aggregates Research (ICAR) has been performing research on the use of aggregates in asphalt and portland cement concrete (PCC) for more than 15 years.
A study was initiated at the University of Texas to investigate the use of manufactured sands in PCC pavements. The...
May 08, 2014
Reports of diagonal cracking of reinforced concrete inverted-T straddle bent caps raised concerns about the strength and serviceability of the recently constructed bridge structures.
These bridge elements are common throughout the U.S., and many of the diagonal shear cracks are large enough to be...
March 11, 2014
On Feb. 9, 2014, the Stan Musial Veterans Memorial Bridge officially opened to traffic in the St. Louis area.
The long-anticipated, $700 million New Mississippi River Bridge (MRB) project will move I-70 off the congested Poplar Street Bridge. This is the first of several projects that will have the...
January 15, 2014
The January issue of ROADS & BRIDGES features a special section on structurally deficient bridges in the U.S., concrete paving, concrete pavement preservation, asset management and work-zone safety.
January 15, 2014
The massive undertaking to extend and elevate Runway 9R–27L at the Fort Lauderdale-Hollywood International Airport (FLL) is nothing short of an engineering marvel. Estimated to cost $791 million, the new 8,000-ft-long south runway will terminate atop a new 60-ft-tall man-made embankment at the east...