All Case Studies
MRDC Operations Corp. (MRDC), a private enterprise responsible for maintaining and rehabilitating a 121-mile highway connecting the cities of Fredericton and Moncton in New...
A 6-mile gravel segment of Becker County, Minn., CSAH No. 35 had very high annual road-maintenance costs due to several resorts, logging trucks and an ADT of 280. The road...
Like most government entities, the Fort Bend, Texas, County Road and Bridge Department is under pressure to perform more taxpayer services faster and on a budget. Owner of...
Scott County Public Works had heard about using pre-wet salt for treating slippery winter roadways. Because the effectiveness was hard to ignore, officials at the Minnesota...
In 2011 the city of San Diego unveiled the iconic Harbor Drive Pedestrian Bridge, a critical link between the city’s historic Balboa Park and the picturesque San Diego Bay....
The two original bridges crossing the Cooper River were functionally obsolete. The Grace Memorial Bridge carried traffic for 76 years and had two narrow 10-ft lanes, did not...
In 2010, the Mississippi Department of Transportation made plans to widen existing bridges and shoulders on I-59 in Laurel, Miss.
The challenge? “We had a limited...
Several western and high plains states wanted to see how portable rumble strips would perform in temperatures below 40° F.
A test location was set up in Lamar, Colo.,...
The California Department of Transportation (Caltrans) manages more than 50,000 miles of California's highway and freeway roadsides. What started with maintaining footpaths...
The I-270 Marine Avenue overpass is an 8-lane structure, within 2 miles of the busiest interchange in Missouri and traffic count is high. Using the “voided-deck” design, the...
A premier outdoor recreation destination, the Colorado Rocky Mountains can unleash dangerous winter snowstorms, below freezing temps and warm, wintertime sunshine—all within...
When applying herbicides along roadsides to control weeds, it’s important to do so without injuring desirable vegetation, especially grasses. A point not lost on Gary Porter...
Minnesota’s Kandiyohi County Road No. 7 was in need of reconstruction.
“This segment of the grading and bituminous surfacing project was projected to receive a lot of...
The city of West Hartford, Conn., spent years wrestling with their collective conscience. They had a primary responsibility to provide quality winter-maintenance services for...
The Southeast Metro Stormwater Authority (SEMSWA), located in the south metro Denver, Colo., area, is responsible for several culverts located throughout many residential...
The city of Spearfish, S.D., had a problem with corrosion on their winter-maintenance equipment. The rust and corrosion had become unacceptable.
“We had deicing...
When the city of Lacey, Wash., set out to rebuild a 6,000 ft section of Carpenter Road, the main goal was to convert the two-lane arterial road to a four- to five-lane...
Up until a few years ago, the town of Webster, Mass., utilized traditional road deicing methods such as sand and salt. When Kenneth Pizzetti took the reins as street...
The city of Carmel, Ind., is not afraid to test drive new deicing technology. Over the years the northern Indianapolis suburb has spread just about every type of deicer on...
A host of difficult elements combined to require extreme engineering to solve a gravity wall problem on Q Street between 168th and 180th in Omaha, Neb.This case entailed...
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The 2011 U.S. Traffic Scorecard indicates that traffic congestion was down 30% last year from 2010 in the nation’s 100 largest metropolitan areas. It...
The Ohio Department of Transportation (ODOT) is hoping to generate millions of dollars in new money by launching a program that will permit...
As the people in and around Atlanta prepare to decide on a sales-tax referendum that could generate $6.14 billion for transportation upgrades,...