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10 Year Asphalt Program

The 10 Year Asphalt Program is an initiative by Collin County to asphalt all 763 miles of county roads by 2014. Currently, more than 615,200 people reside in Collin County and the population is continuing to increase rapidly. Due to the county's continuing growth (the county population increased by 5.65-percent between 2003 and 2004 according to the North Central Texas Council of Governments), neighborhoods are stretching to the north and east where the bulk of the rock and dirt roads are located. Of the 763 miles of county roads, a little over 434 miles consist of rock and nearly 40 miles are dirt. To accomodate the projected increase in population and traffic, Collin County plans to asphalt 50 miles of rock and dirt roads per year until the project is complete.

Converting the roads to asphalt is also more cost effective over the long-term. A recent Colorado State University study (as it applies to Collin County) reveals that based on 434 miles, 108,500 tons of rock are lost per year. Because the current cost per ton is $12.73, that’s a monetary loss of $1,381,000 per year. Beginning in 2005, the County projects a cost savings of $500,000. By 2014, the projected savings will be an estimated $2.75 million, and the county expects to continue saving that amount through at least 2026.

Asphalt is also considered to be safer for road traffic than rock since the distances required for a vehicle to stop are significantly reduced. For a vehicle traveling at 50 miles per hour, the stopping distance is estimated to be 250 feet on wet rock, approximately 165 feet on dry rock and wet asphalt, and only 110 feet on dry asphalt.

More information about the roads maintained by the county is provided below:

County Road Surfaces as of 2004

Dirt Roads in Collin County as of 2004

Rock Roads in Collin County as of 2004

To see which roads have been completed under the Asphalt Program thus far and which roads are scheduled to be paved in the near future following the links below:

Public Works: 2005 Project Status

Public Works: 2006 Project Status

Public Works: 2007 Project Status

Public Works: 2008 Project Status

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