Case Studies

Drainage systems are critical components of any type of construction, and flooding is always a risk to consider when completing public works projects. Maintenance and rehabilitation to storm water systems must be performed quickly and efficiently to prevent any significant damage from forming or...
Polk County, Minn. has approximately 400 miles of gravel roads that it maintains.   “Every year the county would spend money adding gravel that was lost during the winter snowplowing season, have to fix frost boils, and receive complaints about muddy conditions during the rainy season,” said...
Scored pavement—or rumble strips—alert inattentive drivers to potential danger. These strips, typically applied on the shoulder or centerline, are proven to be an effective way to reduce accidents and save lives. Numerous studies also show a very high benefit-to-cost ratio for shoulder rumble...
A multifaceted approach to material handling helped a Pennsylvania bridge contractor overcome challenges associated with pulling decaying concrete slabs from a weight-restricted structure.   M.A. Beech Corp., based in Carnegie Borough, was tasked with demolishing the now-defunct Donora-Webster...
A Michigan bridge that went from four months to just four days in construction time.

A Michigan bridge that went from four months to just four days in construction time.

In 2013, the American Society of Civil Engineers conducted its latest comprehensive assessment of U.S. infrastructure systems. The results painted a grim picture, with the country earning a D+ grade. Along with the unsatisfactory score, the American Road & Transportation Builders Association...

Deployment and removal is easier, faster, safer with CRIB Cargo Carrier.

Distracted driving crashes are a prime factor in traffic fatalities and injuries. The National Highway Transportation Safety Association (NHTSA) reports that 3,179 people were killed and 431,100 injured on U.S. roadways in 2014 because of distracted driving. Those figures are comparable to the two...
The dramatic changes in Texas weather can create a wide range of maintenance issues for the Texas Department of Transportation (TXDOT). Wind, rain, heat and even droughts can create the immediate need to clear away vegetation, clean drainage canals or remove fallen or overgrown trees along roadways...

A completed riser project in Grand Rapids, Mich.

Founded in 1916, Rieth Riley Construction is a large paving firm, serving Indiana and Michigan with 30 asphalt plants. With that kind of paving volume, and a nearly century-long history, the firm has rigorously tested hundreds of infrastructure solutions, and the tools and techniques that make the...
A 31-mile stretch of I-70 near Richfield, Utah—from mile marker 18 to mile marker 49—was in serious need of repair. Two lanes in each direction of interstate concrete pavement had corner breaks, surface and joint spalls and panel-length cracking. In addition to heavy traffic, this area receives an...

All lanes of traffic remained open during construction of the Redi-Rock retaining walls, which are designed to install quickly and within a small footprint.

THE CHALLENGE In 2015, the Kentucky Transportation Cabinet (KYTC) began work on the multi-million-dollar New Circle Road widening project in Lexington. The scope of the project included nearly 3.2 miles of lane additions, shoulder widening, on-ramp and exit ramp realignment, and bridge widening...

GeoSpray geopolymer is applied to corrugated metal pipe.

In the border town of McAllen, Texas, dealing with storm water run-off is a challenge. For local municipalities, it is paramount to modify storm-water infrastructure to keep up with rapid growth, and handle large amounts of water when the weather rapidly fluctuates.   After a severe drought prior...

BoardWalk includes approach plates at curb and street levels. Modular edge castings provide guidance for use of canes and other walking devices.  

In our March 2014 Roads & Bridges Case of the Week, we featured Paul Peterson Co., Columbus, Ohio, and their efforts to help municipalities improve pedestrian safety in sidewalk work zones.   In that case study, we relayed why Peterson Co. deployed SafetyWall ADA-Compliant Pedestrian...

Two all-terrain cranes perform bridge reconstruction work on I-90

The Illinois Tollway (I-90) is in the midst of a 15-year, $12 billion capital improvement program. At the Meacham Road Interchange near the northwest Chicago suburb of Schaumburg, a $51 million bridge and ramp project is underway. The project entails reconstructing the bridge that carries traffic...

Redi-Rock retaining walls were used to provide structural support for the security access road rerouted beneath the runway at the Louisville International Airport.

When the Louisville International Airport needed to extend a runway, engineers were challenged to relocate a security access road that ran through the proposed extension site. With no space to move the road and utilities, engineers decided to reroute the road through a tunnel beneath the runway.  ...

The Mabey Universal bridge detours traffic while historic bridge is widened.

The Great Vermont Flood of 1927 damaged several bridges in the northern part of the state, destroying the infrastructure in the region. Two years later, Richmond’s Checkered-House Bridge was built to carry Route 2 traffic over the Winooski River and rebuild the infrastructure damaged by the...

New MLC300 crawler crane aids construction of new extradosed bridge. 

Once it’s completed in 2017, the new St. Croix River Crossing bridge will be the fourth extradosed bridge in the country. Increasingly popular internationally, an extradosed prestressed bridge is a hybrid of concrete box girder and cable-stay design that minimizes the height of the towers from...

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...

Redi-Rock gravity retaining walls in the Limestone texture were used to accommodate the grade change of this sloping construction site.

Grade changes and wetlands presented a major challenge to designers of the new Mount Kisco Medical Center.The access road to the development needed to meet the grade change requirements, minimize disturbance to the wetlands, and keep the site fully functional during construction. See how the design...
When Hurricane Irene assaulted the coast of North Carolina and caused a breach in the coastline near Rodanthe, the breach destroyed NC-12, the only road that gives residents and visitors access to the island. It was essential that access to the island be restored, and Mabey Inc. was there to lend a...
Lake Gaston is a hydroelectric reservoir in North Carolina and Virginia. It is a man-made lake, roughly 35 miles long, covering 20,000 acres and 350 miles of shoreline. Prior to the lake being formed, power line poles were installed in the area. The lake was then created and filled, and those same...
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