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Asphalt Article February 09, 2016
In the 1970s, the oil shock caused by the Arab Oil Embargo led to petroleum shortages and long lines of drivers hoping to fill their tanks. Although less visible to the general public, the asphalt pavement industry also had to adjust its practices to manage tightened supplies of asphalt binder.... more
Asphalt Article February 09, 2016
A two-lane blacktop road in Cortland County, N.Y., benefited from a sophisticated pavement preservation overlay that combined two lifts and two types of cold mix pavement that are anticipated to provide a high level of service in the years to come.   It’s no secret that local government agencies... more
Asphalt Article February 09, 2016
Pennsylvania’s S.R. 6 describes an almost riveresque course through Wyoming and Lackawanna counties, the topography of which ranges from urban centers to rolling hills of pure greenery.   The S.R. 6 Lackawanna Trail restoration project runs through the northern half of Lackawanna County and the... more
Bridges News February 09, 2016
The Alabama Department of Transportation (ALDOT) saved months of traffic disruptions when replacing the first of two roadway bridges along S.R. 210 in Dothan, Ala., near the Georgia and Florida borders. They did so by using the accelerated bridge construction process which utilized bridge sliding... more
Asphalt Article February 09, 2016
What does it take to create a superbly smooth pavement?   The formula applied by Hutchens Construction for a recent project on Highway 62 in northwest Arkansas involved a bit of technology, a devotion to best practices and some wisdom from an ancient Greek philosopher.   In late 2013, Nabholz Corp... more
Asphalt Article February 09, 2016
There is a theory that too many cooks in the kitchen makes for a lousy sauce.   But this isn’t strictly the case, as evidenced by a major interstate project in Washington State.   Two major challenges faced the I-405 Express Lanes project, which ran from Bellevue to Lynnwood along a 17 mile... more
Asphalt Article February 09, 2016
Rain runs off pavement and causes problems.    It changes the temperature of neighboring rivers and streams, carries garbage into wetlands and creates headaches for people whose driveways slope toward their garages. To avoid these and other problems, new pavement projects are required to have... more
Tolling News February 09, 2016
I-405 express toll lanes are generating over three times more money than the state of Washington originally forecasted. Washington state law requires that the money collected from the tolls must be reinvested in I-405.   Drivers spent $3.7 million between September 2015 and December 2015, with... more
Bridges Article February 08, 2016
Aided by a mild winter, the replacement of the aging Tappan Zee Bridge just north of New York City is moving forward at a very rapid clip.   At $3.98 billion, the new crossing is the largest active-construction highway or bridge project in the U.S.    The first span of the New York State Thruway... more
Winter Maintenance Article February 08, 2016
For some, imagining farm country in the winter can conjure up peaceful bucolic scenes of snow blanketing an expansive and dormant landscape—the crops have been harvested, and it is a state of rest.    On the roads, however, these landscapes receive such snow in the winter as to create a state of... more
Asphalt Article February 08, 2016
Pavement recycling processes can be effective for reducing the costs and environmental impacts of pavement rehabilitation and reconstruction.   However, the performance of these processes has been difficult to predict since the structural properties of the recycled materials are not well quantified... more
Asphalt Article February 08, 2016
In the asphalt paving industry, the cost of building asphalt pavements continues to rise.   As a result, the asphalt industry continues to find ways to stretch road-building dollars while attempting to maintain the quality of asphalt mixes.   Figure 1. Recycled binders from both RAP and RAS are... more
Public Transportation News February 08, 2016
New Jersey Transit and its unions are preparing to go on strike March 13 over pay and health benefits, effectively shutting down train service, crippling the region’s transportation system. The impending strike would make it impossible for New York and New Jersey area commuters to get to work.  ... more
Maintenance News February 08, 2016
The New Mexico Department of Transportation (NMDOT) disputed a report released by the nonprofit transportation research group TRIP (The Road Information Program) that found that 25% of New Mexico’s roads are in poor condition, and 16% of bridges are either structurally deficient or obsolete.   The... more
Asphalt Article February 05, 2016
  The biggest change the Colorado Department of Transportation (CDOT) will pocket came in the form of quarters.   Coring the pavement more frequently led to excellence on the SH 133 job between Carbondale and Redstone, Colo., so much so that it helped win a 2016 Roads & Bridges/Asphalt... more
Asphalt Article February 05, 2016
The Blue Ridge Parkway is a scenic highway set high in the mountains of Virginia and North Carolina.   Unlike a standard highway that is optimized to carry the maximum number of vehicles from here to there, directly as possible and at high speeds, the Parkway was designed to showcase the beauty of... more
Asphalt Article February 05, 2016
    A severely distressed section of I-10 in rural western Texas had structural failures that ran deep. Past maintenance for this 11-mile-long, 4-lane-wide stretch of I-10 near Balmorhea was purely surface level. The particular stretch of the highway was marred by sunken spots, rutting and other... more
Drainage Case Studies February 05, 2016

The finished product of an underground corrugated metal pipe that underwent a full rehabilitation.

At the end of a cul-de-sac in Houma, La., in Terrebonne Parish, a corrugated metal pipe ran along the back of two residential properties. Like so many of these pipes across the country, it was deteriorating and in desperate need of replacement.   Because of the location of the pipe, there were... more
Public Transportation News February 05, 2016
New York City Mayor Bill de Blasio unveiled a $2.5 billion plan this week to run an electric streetcar system along the city’s waterfront between Astoria, Queens and Sunset Park, Brooklyn, stretching some 16 miles over all.   The Brooklyn Queens Connector (BQX) will be the one of the largest urban... more
Funding News February 05, 2016
President Obama is proposing a $10 per barrel oil tax, to be phased in over five years, that is intended to pay for transportation initiatives, including new rail corridors, highway projects, pilot projects for self-driving cars and other technologies the administration would consider to be part of... more
Asphalt Article February 09, 2016
In the 1970s, the oil shock caused by the Arab Oil Embargo led to petroleum shortages and long lines of drivers hoping to fill their tanks. Although less visible to the general public, the asphalt pavement industry also had to adjust its practices to manage tightened supplies of asphalt binder....
Asphalt Article February 09, 2016
Pennsylvania’s S.R. 6 describes an almost riveresque course through Wyoming and Lackawanna counties, the topography of which ranges from urban centers to rolling hills of pure greenery.   The S.R. 6 Lackawanna Trail restoration project runs through the northern half of Lackawanna County and the...
Asphalt Article February 09, 2016
A two-lane blacktop road in Cortland County, N.Y., benefited from a sophisticated pavement preservation overlay that combined two lifts and two types of cold mix pavement that are anticipated to provide a high level of service in the years to come.   It’s no secret that local government agencies...
Bridges News February 09, 2016
The Alabama Department of Transportation (ALDOT) saved months of traffic disruptions when replacing the first of two roadway bridges along S.R. 210 in Dothan, Ala., near the Georgia and Florida borders. They did so by using the accelerated bridge construction process which utilized bridge sliding...
Asphalt Article February 09, 2016
There is a theory that too many cooks in the kitchen makes for a lousy sauce.   But this isn’t strictly the case, as evidenced by a major interstate project in Washington State.   Two major challenges faced the I-405 Express Lanes project, which ran from Bellevue to Lynnwood along a 17 mile...
Asphalt Article February 09, 2016
What does it take to create a superbly smooth pavement?   The formula applied by Hutchens Construction for a recent project on Highway 62 in northwest Arkansas involved a bit of technology, a devotion to best practices and some wisdom from an ancient Greek philosopher.   In late 2013, Nabholz Corp...
Asphalt Article February 09, 2016
Rain runs off pavement and causes problems.    It changes the temperature of neighboring rivers and streams, carries garbage into wetlands and creates headaches for people whose driveways slope toward their garages. To avoid these and other problems, new pavement projects are required to have...
Tolling News February 09, 2016
I-405 express toll lanes are generating over three times more money than the state of Washington originally forecasted. Washington state law requires that the money collected from the tolls must be reinvested in I-405.   Drivers spent $3.7 million between September 2015 and December 2015, with...
Bridges Article February 08, 2016
Aided by a mild winter, the replacement of the aging Tappan Zee Bridge just north of New York City is moving forward at a very rapid clip.   At $3.98 billion, the new crossing is the largest active-construction highway or bridge project in the U.S.    The first span of the New York State Thruway...
Winter Maintenance Article February 08, 2016
For some, imagining farm country in the winter can conjure up peaceful bucolic scenes of snow blanketing an expansive and dormant landscape—the crops have been harvested, and it is a state of rest.    On the roads, however, these landscapes receive such snow in the winter as to create a state of...
Asphalt Article February 08, 2016
Pavement recycling processes can be effective for reducing the costs and environmental impacts of pavement rehabilitation and reconstruction.   However, the performance of these processes has been difficult to predict since the structural properties of the recycled materials are not well quantified...
Asphalt Article February 08, 2016
In the asphalt paving industry, the cost of building asphalt pavements continues to rise.   As a result, the asphalt industry continues to find ways to stretch road-building dollars while attempting to maintain the quality of asphalt mixes.   Figure 1. Recycled binders from both RAP and RAS are...
Public Transportation News February 08, 2016
New Jersey Transit and its unions are preparing to go on strike March 13 over pay and health benefits, effectively shutting down train service, crippling the region’s transportation system. The impending strike would make it impossible for New York and New Jersey area commuters to get to work.  ...
Maintenance News February 08, 2016
The New Mexico Department of Transportation (NMDOT) disputed a report released by the nonprofit transportation research group TRIP (The Road Information Program) that found that 25% of New Mexico’s roads are in poor condition, and 16% of bridges are either structurally deficient or obsolete.   The...
Asphalt Article February 05, 2016
  The biggest change the Colorado Department of Transportation (CDOT) will pocket came in the form of quarters.   Coring the pavement more frequently led to excellence on the SH 133 job between Carbondale and Redstone, Colo., so much so that it helped win a 2016 Roads & Bridges/Asphalt...
Asphalt Article February 05, 2016
The Blue Ridge Parkway is a scenic highway set high in the mountains of Virginia and North Carolina.   Unlike a standard highway that is optimized to carry the maximum number of vehicles from here to there, directly as possible and at high speeds, the Parkway was designed to showcase the beauty of...
Asphalt Article February 05, 2016
    A severely distressed section of I-10 in rural western Texas had structural failures that ran deep. Past maintenance for this 11-mile-long, 4-lane-wide stretch of I-10 near Balmorhea was purely surface level. The particular stretch of the highway was marred by sunken spots, rutting and other...
Drainage Case Studies February 05, 2016

The finished product of an underground corrugated metal pipe that underwent a full rehabilitation.

,

Aerial view of the pipe rehabilitation project in Houma, La. 

At the end of a cul-de-sac in Houma, La., in Terrebonne Parish, a corrugated metal pipe ran along the back of two residential properties. Like so many of these pipes across the country, it was deteriorating and in desperate need of replacement.   Because of the location of the pipe, there were...
Public Transportation News February 05, 2016
New York City Mayor Bill de Blasio unveiled a $2.5 billion plan this week to run an electric streetcar system along the city’s waterfront between Astoria, Queens and Sunset Park, Brooklyn, stretching some 16 miles over all.   The Brooklyn Queens Connector (BQX) will be the one of the largest urban...
Funding News February 05, 2016
President Obama is proposing a $10 per barrel oil tax, to be phased in over five years, that is intended to pay for transportation initiatives, including new rail corridors, highway projects, pilot projects for self-driving cars and other technologies the administration would consider to be part of...
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