After years of laboratory testing and actual on-road performance analysis, researchers at the Texas A&M Transportation Institute (TTI) are confident that their goal of making a thinner, longer-lasting, cost-saving and smoother-riding pavement has now been realized. Thanks to a Texas Department of Transportation (TxDOT) project which funded the research, a one-inch (and thinner) overlay developed by TTI is being used in a growing list of locations across the state.
In an effort to save taxpayers money, Brazos County recently used ultra-thin overlays on sections of five roadways covering a total of 5 miles, and plans to use it more extensively. The City of College Station used a ¾ inch overlay on sections of two streets and will monitor its performance through the spring.
“An overlay has always been 2 inches thick. It’s expensive and often needs to be taken up when it’s time to re-surface. But, thanks to new technology, tighter specifcations and quality materials, TTI and TxDOT developed these thin pavements,” Senior Research Engineer Tom Scullion explains. Scullion is manager of TTI’s Flexible Pavements Program. “They are designed to last longer, save money and have other advantages, and I expect them to change the way we fix many of our roads,” he says.
Brazos County roadways resurfaced with thin pavements include:
Elmo Weedon Road (from Bryan city limits east of SH30 to Steep Hollow Road).
Greens Prairie Trail (from College Station city limits west of Royder Road to FM 2154).
Greens Prairie Road (from College Station city limits east of Sweetwater Drive to west of Woodlake Drive).
Rock Prairie Road (from College Station city limits west of FM2154 to IG&N Road/South Dowling).
IG&N Road (from North Capstone Drive to south of Koppe Bridge Road.)
The City of College Station recently resurfaced 2.8 mile sections of Brentwood Drive East and Rock Prairie Road West with 3/4 inch overlays.