Case Studies

Manhole riser in Jefferson County, Ala.
Home to Birmingham, and more than 660,000 residents, Jefferson County is Alabama’s most populous county. The sewer network the county maintains includes 3,600 miles of pipe and 80,000 manholes. That last figure represents a sizable amount of annual maintenance; though manholes themselves are...
Cranes on Pittsburgh highway project
As a certain saying reminds us, functioning smoothly and efficiently requires the left hand to know what the right hand is doing. So imagine how critical it is for two cranes to work together seamlessly when combining efforts on a pick. Such was the case on a 13-mile phase of the colossal Southern...
Forth Bridge Queensferry Crossing under construction

Forth Bridge Queensferry Crossing under construction.

The Queensferry Crossing near Edinburgh, Scotland, is the longest cable-stayed bridge in the world at more than 8,500 ft. It is one of the largest infrastructure projects in Europe, and it benefited from advanced reinforcement planning in 3D provided by the engineers from Leonhardt, Andrä und...
RAPTOR demonstrates TPRS deployment at PTC

RAPTOR demonstrates TPRS deployment at PTC

Traffic engineers at the Pennsylvania Turnpike Commission (PTC) first tested RoadQuake 2F Temporary Portable Rumble Strips (TPRS) in live work zones in September and October of 2015. Their goal was to determine if TPRS arrays would increase driver awareness and alertness in their work zones.  ...
Mountrail County Rte. 6
Eric Urness, P.E., central regional vice president with Interstate Engineering in Mandan, N.D., was working on plans to reconstruct a 11.5-mile section of BIA Rte. 6 from 86th Ave. to 31st Street in Mountrail County, N.D. Due to the recent growth of the oil industry in this area there has been a...
The Carroll Avenue Bridge in Takoma Park, Md.

The Carroll Avenue Bridge in Takoma Park, Md.

Historically and visually impressive, the S.R. 195 (Carroll Avenue) bridge is a three-span, 224-ft structure that crosses the Sligo Creek Parkway, Sligo Creek and the Sligo Creek Trail in Takoma Park, Md.   The origins of the S.R. 195 bridge began in 1878 with a humble, low-lying wooden bridge that...
With Allplan Engineering 2018 engineers can conveniently generate a 3D model of the reinforcement of double-curved supporting structures with varying cross-sections

With Allplan Engineering, 2018 engineers can conveniently generate a 3D model of the reinforcement of double-curved supporting structures with varying cross-sections.

With an arched span of 869 ft, a superstructure length of 1,369 ft and a height of 772 ft above the valley floor, the Tamina Bridge—planned by the engineering office Leonhardt, Andrä und Partner (LAP)—is the largest arched bridge in Switzerland. LAP used Allplan Engineering to create the structural...
Milwaukee road adjustable risers
Several years ago, the city of Milwaukee was experiencing issues with their cast-iron manhole risers installed throughout the area. “They’re usually fine, but on occasion they would slip or rattle out, and that led to car damage and claims—there was definitely room for improvement,” said Milwaukee’...
Hill & Smith steel barriers 1
Alkali-silica reaction (ASR), commonly known as “concrete cancer,” is a chemical reaction that can wreak havoc on concrete structures and accelerate deterioration. This corrosive force is quite prevalent in concrete bridge rails and can cause a number of issues, such as negatively affecting the...
The Circle, Zurich Airport, Switzerland
With a total investment cost of around 1 billion Swiss francs, a high-quality superstructure for services is emerging that will provide a usable area of 180,000 square meters at the foot of the Butzenbüel hill and within walking distance of the Zurich Airport terminal. As soon as January 2015, the...
Wilkin County Highway #8 FDR
Wilkin County, Minn., has stabilized an estimated 80 miles of gravel surface roadways and 30 miles of full-depth reclamation projects with the same base stabilizer. The county had a stabilized full-depth reclamation project scheduled for Wilkin County Highway #8 in 2014.   "Due to some unforeseen...
EnviroTech Owl Canyon Road
The Owl Canyon Corridor in northern Larimer County, Colo., is an 11-mile section of Larimer County Road 70 and 72 that serves as an important connection between U.S. Highway 287 and I-25. The westernmost three miles of the corridor is non-paved, consisting of a treated gravel surface.   As the...
Pennsylvania rapid bridge replacement

Copyright, Pittsburgh Post-Gazette, 2018, all rights reserved. Reprinted with permission.

One of the country’s largest construction projects undertaken by a public-private partnership is winding down, and ALL Crane Rental of Pennsylvania was in the thick of it. The ambitious $900 million project saw Plenary Walsh Keystone Partners and the Pennsylvania Department of Transportation (...
NJDOT uses permitting & routing software to save time & money
Prior to 2010, New Jersey handled its oversize/overweight (OS/OW) permitting manually through the Motor Vehicle Commission using a non-route-specific paper process. To increase public safety and protect the state’s infrastructure, however, the New Jersey Department of Transportation (NJDOT)...
LaneGard 3 Folding Type III Barricade is designed for emergency road closures.

LaneGard 3 Folding Type III Barricade is designed for emergency road closures.

After a storm hit northeastern Ohio on March 1, 2018, an estimated 80,000 people lost electrical power as a result. High winds, gusting as strong as 50 mph, brought many power lines down, and numerous road closures were reported throughout the area. The storm, severe enough to earn its own name,...
Lafayette, Ind., bridge
The city of Lafayette, Ind., is nearing completion of a years-long process to update one of its main thoroughfares, a 2.5-mile stretch of Sagamore Parkway. Cranes provided by Central Rent-A-Crane, a member of the ALL Family of Companies, are playing a crucial role in completion of the project.  ...
pavement repair
Pa. Rte. 66 is a 139-mile southwesterly-northeasterly route in the northwest area of the state. In April 2003, Jones Township (Pa.) Highway Superintendent Jeff Roberts was deciding how to conduct a repair on this critical route. The affected area was continually failing and needed constant repairs...
Emergency cleanup team in Texas puts excavators to work
Emergencies happen, which is why special services teams are assembled in districts throughout Texas—each armed with equipment that can travel quickly to locations such as the Houston area as it struggled to recover following Hurricane Harvey in September 2017.   Matthew Heinze, Austin district...
The Umpqua River Bridge in Oregon was kept in service while structure strengthening occurred in several locations.

The Umpqua River Bridge in Oregon was kept in service while structure strengthening occurred in several locations.

The Umpqua River Bridge along the Oregon Coast Highway (U.S. 101) in Reedsport, Ore., is a swing-span bridge flanked by two tied reinforced concrete arches on each side. The bridge was opened in 1936 and was added to the National Register of Historic Places in 2005. Due to the age and deterioration...
To meet state and federal reporting requirements, the Oregon Department of Transportation (ODOT) must know what assets it has and where they are located. This challenge is complex because the network with which it is associated is constantly changing, and the linear nature of roadway information is...
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