Case Studies
Cranes and bulldozers rule different realms: one, the air and the other, land. So it is not every day they collaborate on setting a bridge, but they did just that for a temporary cantilever bridge in Aurora, N.C., in January. The 125-ft span is needed to maintain traffic flow on Rte. 33 over...
A Texas concrete slipform paving contractor took advantage of the cool and uncongested early morning hours before sunup to start the day's work and end it before noontime.
That was the game plan for constructing miles of concrete pavement for a massive residential project—Southern Pointe...
A concrete paved drainage channel on the Interstate 74 (I-74) right of way in Moline, Ill., collapsed due to years of undermining from soil erosion and scour, which resulted in severe erosion of the entire downstream waterway area. The Illinois Department of Transportation (IDOT) wanted to repair...
The Florida Department of Transportation (FDOT) knew that the big box culvert running under State Road 64 in downtown Bradenton, Fla., either had to be replaced or rehabilitated—the question was how.
“We’re not even sure how old this culvert is, but judging by the square, twisted rebar, it...
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The intersection of Routes 9 and 440 with the Garden State Parkway, one of New Jersey’s busiest and most vital cloverleaf complexes, developed sinkholes following Hurricane Irene in 2011. More than 500 ft of 60-year-old pipe were failing, with joints that were falling apart and some inverts...
When the Washington State Department of Transportation (WSDOT) Eastern Region, located in Spokane, scheduled a two-day paving project this past August on S.R. 26 near Colfax, they decided to deploy RoadQuake Temporary Portable Rumble Strips (TPRS) in the work zone.
Colfax, Wash., 60 miles due...
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During a routine annual inspection in 2013, Grottoes, Va.—a town of 2,600 noted for its proximity to Grand Caverns, America’s oldest show cave—discovered severe corrosion in portions of its storm water system.
A large set of elliptical CMP culverts did not pass inspection—they were in poor...
Road-Tech Safety Services Inc., located in Shingle Springs, Calif., about 40 miles east of Sacramento, provides equipment rental and sales, traffic control supplies, and traffic control services to the highway construction industry.
Last summer, Road-Tech provided traffic control services for a...
Shutting down a main artery into a major metropolitan area is never a decision that is taken lightly. That is what was required this summer for reconstruction of the Broadway Avenue bridge over I-77 near downtown Cleveland. Kokosing Construction was the general contractor, working for the Ohio...
The city of Springfield, Mass., has suffered some hard times economically in the last several years. The downtown section of the city also was hit by a severe tornado in 2011. MGM Resorts International is helping to restore the city and its economy through the development of the MGM Springfield...
The culvert under SR 16 was rusting and failing.
Eight years ago, a portion of Florida State Route (SR) 16 was beginning to subside as a result of heavy tropical storm flows. A large void had opened up on one side of the culvert running underneath the roadway, and the culvert was visibly rusting and failing. The 13-ft-diameter bolted multi-plate...
The Blue Ridge Parkway revels in its new autumn shades of yellow, orange and red that follow the road’s meandering, peaceful curves. Quickly, the brisk fall weather turns to biting winter cold, and the skies shift from clear blues to darker greys. The landscape becomes stark, quiet and still as the...
Aware of aging and deteriorating infrastructure, the city of Aurora, Colo., contracted with Wilson & Co. Inc. Eng. & Architects to conduct a comprehensive condition assessment of Aurora Water’s corrugated metal pipe (CMP) storm water infrastructure and assess various rehabilitation methods...
The metamorphosis of car travel in, around and through Orlando, Fla., continues with the expansive I-4 corridor project. This 21-mile, $2.3 billion project is completely changing the way traffic is routed and managed through one of the largest metroplex areas in the world. The ultimate goal is less...
PEDS is an advocacy group that provides, according to their website, “technical expertise, outreach and training that helps make streets safe and inviting places to walk.” Founded 20 years ago in Atlanta, PEDS works with local, regional and state governments, and other advocacy groups to make...
Crew spin-casting arched pipe, Fort Drum, N.Y.
Fort Drum in Jefferson County, N.Y., is home to the U.S. Army’s 10th Mountain Division and, with a population of nearly 13,000 on 107,265 acres, is one of the most active military bases in the country. Like any municipality, Fort Drum deals with infrastructure challenges caused by population growth...
Reinforced concrete structures, such as bridges, can be exposed to aggressive chloride environments and often show evidence of corrosion after short service periods.
Numerous reinforced concrete structures worldwide, such as bridges and offshore platforms, are exposed to aggressive chloride environments and show evidence of corrosion after short service periods. The cost of repairing or replacing deteriorated structures has become a major liability for highway...
The Illinois Tollway Highway Authority had 60 critical cell tower sites along its roads that needed to be protected from unwanted intruders and from vehicle impacts.
Gonzalez Companies in Downers Grove, Ill. and Singh & Associates in Chicago researched the best product on the market suited...
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The road and bridge department in Anderson County, S.C., is charged with handling a wide range of jobs for its 187,000 residents. “We try to get the best equipment, the most productive equipment, the most reliable equipment that we can possibly get for the budget we have,” said Joe Moss, the...
Panels were put in place to prepare for cast-in-place pour
A partially filled concrete grid bridge deck was selected as a major component of the solution for the lightweight superstructure replacement on I-895 over Patapsco River Flats for the Maryland Transportation Authority (MDTA).
Rummel, Klepper & Kahl LLP (RK&K) of Baltimore secured the...