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Case Studies

A TxDOT herbicide truck sprays a guardrail where weeds are encroaching.

Many may not realize what an attraction the spring wildflower bloom is in Texas—or even that the state has such an impressive wildflower crop. But each spring, throngs of those in the know flock all over the state to get a glimpse of fields swathed in bright colors like flame orange, yellow, blue...
Arizona is known for its vast deserts and arid climates—not necessarily torrential rain. But when it does rain in the southwestern state, the combination of the amount and the speed at which it falls can cause flash floods. The shores of Lake Havasu—a valley destination for flash flood waters—are...

The city of Lowell, Mass., is cutting salt use by installing a new electronic spreader control system on its snowplow trucks. 

Before installing electronic spreader controls on its snowplow trucks, the Lowell, Mass., Department of Public Works (DPW) was applying tons of salt on city streets for each winter storm. “Our operators would typically set their existing manual spreaders to maximum and go, putting down about 1,000...

This image shows the placement of TechCrete into a cavity that has been sawed and blown clean with compressed air. 

The Utah Department of Transportation (UDOT) is always on the lookout for durable solutions for pavement preservation. Degradation caused by natural forces, traffic and other means is a continual challenge for keepers of the infrastructure—they need to treat defects such as surface spalling, panel...

The Thomas Buford Pugh Memorial Bridge replacement project

The Thomas Buford Pugh Memorial Bridge spans the New River Gorge National River on Rte. 41 in the town of Prince, W. Va. The bridge is a two-lane, three-span, through-truss style that carries traffic white-knuckle high over the whitewater New River. One of the oldest rivers in North America and...
Continental Gold, an exploration and development company, established a mining operation in the mountains of Antioquia, Colombia. Situated 940 m (3,084 ft) above sea level, the very complex and steep terrain rendered the area nearly inaccessible for construction equipment that was required to build...

The DuraPatcher provides a permanent repair by spraying a mixture of emulsion-coated aggregate with sufficient force to compact the mixture as it is applied in layers.

In the far northern reaches of the continental U.S., pavement maintenance supplies can often be in short supply, depending on the time of year. This can seriously impede pothole patching as asphalt plants close for the winter. The City of Fargo, ND, only 160 miles from Canada, took matters into its...

Workers prepare the Snap-Tite HDPE pipe for slip-insertion.

Aging culverts across the United States are failing at an alarming rate. The cost and inconvenience of digging out and replacing these systems is often unrealistic. In Kansas, the Department of Transportation (KDOT) and Johnson County embarked on a multimillion-dollar highway improvement project...
The scenic U.S. 50 twists and turns its way past Lake Tahoe, Nev. It cuts through mountains, forests and desert valley with steep grades and hairpin turns. Rocky outcrops bound the highway, and a stretch of road between Cave Rock Tunnel and the junction of U.S. 50 and S.R. 28 was in need of repair...

The limestone-textured blocks matched the aesthetic look of the existing bridge pier, and fit in with the natural look of the environment.

In 2013, the town of North Haven, Maine, began construction on a very unique bridge project. The goal was to rebuild a deteriorating bridge that provided access to four seasonal homes and was an important wharf for the local lobster industry.   The town faced several challenges with this project...

The advanced brine-making system.

Saving money on winter maintenance was a top priority for the City of Anderson and Madison County, Ind. After co-investing in a state-of-the-art automated brine maker, the two municipalities have done just that. What’s more, they’ve nearly recouped their investment in just one year.   “Looking at...
H&S Contracting Inc. of Moorhead, Minn., was looking for estimating software that would take the company to the next level. Its previous system, using ledger sheets and Excel documents created in-house, was outdated.   “It seemed to work well, until you change,” said Brent Syster, estimator and...
On a roadside in Greendale, Wis., the Geoweb system was integrated along a half-mile section of roadway designed to support the weight of rolling vehicles that might venture off onto the shoulder. R.A. Smith & Associates—the village of Greendale’s engineer—was tasked with designing a stabilized...
Sundt Construction—headquartered in Tempe, Ariz.—is one of the nation’s oldest and largest construction companies. For more than 120 years, Sundt has participated in many landmark projects, including building the town of Los Alamos, N.M.—where the first atomic bomb was built—and relocating the...
On Rte. 205 near Presque Isle, Maine, runoff from nearby potato fields can clog culverts running beneath roads, creating washouts and resulting in flooding hazards if not quickly addressed. Region 5 of the Maine Department of Transportation efficiently tackled this issue with a Gradall XL 4300 III...

Geoweb sections are fast to deploy and install.

The New Mexico State Highway and Transportation Department’s reconstruction of 118 miles (190 km) of four-lane highway along a northwestern route was challenged with a construction timetable of just two years and a construction season limited by cold Rocky Mountain winter weather.   With time...
At T+C Contracting in Louisville, Ky., all foremen enter their daily job site data into HCSS’s HeavyJob software.   “What’s so great about the HeavyJob software is it’s in a very easy-to-follow sequence,” said Scott Thornberry, T+C’s operations manager. “For a foreman who has never used a computer...
The San Jacinto River Authority (SJRA) is responsible for developing, conserving and protecting the water resources of the San Jacinto River Basin in Texas. The SJRA’s purview includes all of Montgomery County and parts of Walker, Waller, San Jacinto, Grimes and Liberty counties. The SJRA’s...

Precast slabs arrive ready for installation and use.

When’s the last time you saw a pothole, or, worse, hit one with your car? Chances are it hasn’t been long. Pavements around North America are showing alarming rates of deterioration at the same time traffic is at an all-time high.   For years, Georgia DOT (GDOT) has researched and implemented...

Pre-cut sections of HDPE machined Snap-Tite pipe were delivered to worksite, snapped together and pushed through the length of the host pipe. 

The Yuma District of the Arizona Department of Transportation (ADOT) encompasses a large area of Arizona, bordered by California on the west and Mexico to the south. The district maintains more than 3,000 total miles of highway and interstate, and its plan to widen several highways within the...

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