Case Studies

The E. R. Snell Contractors of Snellville, Ga., is a full-service, fifth-generation contractor. It was founded by E. F. Snell in 1926. Today, in addition to covering the northern half of the state with both asphalt and concrete highway work, they build bridges, install underground drainage and...
In the 1990s, MCDOT began a program to improve the signing and markings on all arterials, all collectors and a number of selected local roadways. This program consisted of completing a systematic review of roadways, identifying deficiencies, recommending corrective actions and reviewing the...
CASS is a Cable Barrier System that consists of C-shaped posts of mild steel that can be either driven, or installed in concrete post foundations with a steel sleeve. Three 19-mm pre-stretched cables are placed in a slot at the top of the post and kept apart by recycled plastic spacers. The cables...
Shoring up a sinking road A storm-drain system built in the 1970s is now under a main lane of a 1990s road expansion, and the road is sinking. URETEK was called in to fix the situation. Location Throughout the 1990s, the population of Broward County, Fla., grew faster than the statewide...
Two problem areas were holding up the entire project's completion -- URETEK was called to provide the permanent solution. Location: The city of San Antonio, Texas, contracted BRH Garver Construction to fulfill a multi-million-dollar capital improvement project in a residential area on the...
The Marquette Interchange is an $810 million construction project in Milwaukee, Wis., with a 50-year history. Initial plans were presented in December 1952; the exchange was opened in December 1968. After 30 years of service, the Wisconsin DOT determined that it was time for reconstruction of the...
Economy and Performance Owning and operating an independent quarry requires hard work, dedicated employees and a close watch on fiscal matters. As one of the largest independent producers of crushed stone in North Carolina, Ararat Rock Products has grown steadily since it was first founded by...
Five years old and re-topped several times, this only in/out road had settled 6 in. The New Mexico DOT (NMDOT) called Uretek USA to provide a permanent fix. The Location: Four miles north of Cuba, N.M., State Highway 96 is the only road into the Jicarilla Indian Reservation. Where this...
After four years of continued approach and departure slab settlement Caltrans looked to Uretek USA for a permanent solution to the problem. THE LOCATION State Route 241 runs north-south through Orange County, Calif., connecting U.S. 91 and the Oso Parkway. This four -lane highway has a bridge...
THE LOCATION Two westbound lanes of LA 14 collapsed in 2001 over a 22-in. high-pressure gas line near the Erath Bypass in Vermilion Parish, La. The Louisiana Department of Transportation and Development (LADOTD) District 3 closed the two lanes, tore out the failed concrete, excavated the...
The answer came in the form of a road weather information system (RWIS) provided by Surface Systems Inc. (SSI), a division of Quixote Transportation Technologies Inc., located in St. Louis, Mo. SHA adopted wind restriction policies to limit the types of vehicles traveling on certain bridges...
City of Stephenville, Tex., officials have at least a dozen reasons to endorse using cement to rehabilitate their streets. None of Stephenville’s cement-recycled streets have had problems or failed in the past 12 years. “They’ve not done any re-work on any of the bases that we’ve (cement)...
The Tennessee Department of Transportation (TennDOT) had a challenge to remove a thermoplastic line that was improperly placed on a new friction coarse asphalt roadway on Rte. 67 in Carter County near Elizabethton, Tenn. TennDOT did not want to grind the line as this would cause significant...
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