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Rubberized Asphalt Tops US 60 Widening Project
FNF Construction continues to quiet Phoenix's road system with latest Superstition Freeway improvement.
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The Superstition Freeway improvement plan included 11 inches of Portland cement concrete pavement (PCCP) on the ramps and 13 inches on the travel lanes to support the heavy usage this road receives.
In 2003 ADOT adopted a Quiet Pavements Program to overlay most of the Regional Freeway System with rubberized asphalt to address the annoying noise associated with the ever-increasing level of traffic.
As general contractor on the Superstition Freeway widening project, FNF is performing most of the improvements required to widen the existing freeway from three to six travel lanes in each direction from Gilbert to Power roads, including earthmoving to create the expanded travel lanes.
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The rubberized asphalt to be placed this spring is a hot mix asphalt (HMA) that contains 9-percent liquid asphalt cement (80-percent is liquid AC and 20-percent is crumb rubber from recycled tires).
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By Greg Udelhofen
Editor
When a six-mile stretch of the Superstition Freeway in The Greater Phoenix area is completed this spring, FNF Construction will place over 50,000 tons of rubberized asphalt over the expanded roadway to cap a $73-million project that not only improves traffic flow, but also quiets the noise created by over 300,000 motorists that use this vital section of highway each day.
As general contractor, FNF is performing most of the improvements required to widen the existing freeway from three to six travel lanes in each direction from Gilbert to Power roads, including earthmoving to create the expanded travel lanes, placement of the concrete structural roadway, expanding bridge structures, realigning entrance and exit ramps, and finally placing the asphalt rubber friction course (ARFC) over the entire road surface.
The project will also include placing the rubberized asphalt wearing course over the existing concrete roadway from Power Road to Crimson Road, extending the quiet pavement application an additional four miles east of the main project.
This project is part of the Superstition Freeway improvement plan that began back in 1993 after the Federal Highway Administration (FHWA), Arizona Department of Transportation (ADOT), and the Maricopa (the project is located in Maricopa County) Association of Governments (MAG) determined that there was an immediate need for improvements to the freeway due to mass development in the surrounding areas, and environmental concerns.
Also worth noting, FNF placed over 32,000 tons of asphalt base mix in areas of the 12 different construction sections of the expanded roadway to add structural support to the heavily-traveled freeway.
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