Pavement - Awards

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Awards

WSDOT is among the very best in the United States when it comes to developing innovative and long-life pavement. This standing is regularly recognized by its peers as well as by the Asphalt Pavement Alliance through its Perpetual Pavement awards.

Performance analysis

2021

WSDOT wins three pavement awards

WSDOT received three Perpetual Pavement Awards from the Asphalt Pavement Alliance for 2021. This was WSDOT's eighth PPA by Performance since the program began in 2001, and its second PPA by design and PPA by Conversion. WSDOT was the first to earn these awards in 2020. and was one of only two road owners to win a 2021 PPA in all three categories. APA developed these awards to recognize long-life asphalt pavement in the U.S. and honor asphalt pavement work that demonstrates outstanding design and construction.

The Perpetual Pavement by Performance Award in the original category of Performance was for a 4.39-mile section of State Route 7 in Pierce County, which is more than 69 years old. This award's qualifications are that the pavement must be at least 35 years old and have never suffered a structural failure. It must also demonstrate excellence in design, quality construction and high value to taxpayers.

To qualify for the PPA by Design, the winning pavement must be a newly designed and constructed asphalt road built over a new or reconditioned subgrade that meets strict Perpetual Pavement criteria. WSDOT earned this award for the 4.25-mile westbound widening of SR 502 in Clark County that opened to traffic in 2017.

The third award PPA by Conversion, recognizes new asphalt roads constructed over an existing road. The WSDOT winning project is 2.41 miles of Pavement Rehabilitation on Interstate 5 southbound in King County, completed in 2017. The winning sections of SR 7, SR 502 and I-5 all meet the criteria for a PPA and will continue to serve the travelers in Washington well into the future, requiring little maintenance.

2020

WSDOT wins three pavement awards

WSDOT received three Perpetual Pavement Awards from the Asphalt Pavement Alliance for 2020, including awards for two new categories: Design and Conversion. This was WSDOT's seventh Perpetual Pavement by Performance Award in the original category of Performance and was for a 6.9-mile section of State Route 395 in Franklin County.

This award's qualifications are that the pavement must be at least 35 years old and have never suffered a structural failure. It must also demonstrate excellence in design, quality construction and high value to taxpayers.

The second award WSDOT won was for a 4.38-mile section of State Route 522 in Snohomish County and was under the new Perpetual by Design award criteria. This award recognizes newly designed and constructed asphalt roads built over new or reconditioned subgrade that also meet the criteria. Two new lanes were built for SR 522 in 2015 to accommodate the increasing traffic volumes, which qualified WSDOT as the first winner of this award.

The third award recognizes new asphalt roads constructed over an existing road. This award was for a 9.31-mile section of Interstate 5 in Skagit County and was under the new Perpetual by Conversion award criteria. This section of I-5 received a crack seat and overlay on the original concrete, and the CSOL converted the roadway into asphalt. WSDOT was the first—and only—winner of this award.

2019

WSDOT, contractor win multiple awards for use of rut-resistant asphalt on I-90

WSDOT and its paving contractor, Central Washington Asphalt, won multiple Washington Asphalt Pavement Association awards for using a special type of rut-resistant asphalt on I-90 between SR 21 and Ritzville in 2019. These awards include the First Place Quality Award, the Smoothness Award for the east side of the state, and the Carl Minor Award, which is given to the best project in the state.

WSDOT and the contractor won these awards for their use of a special type of asphalt called stone matrix asphalt to combat rutting and create a high-quality asphalt overlay that will last longer than WSDOT's typical hot-mix asphalt. SMA is known for its long-lasting benefits, it has high rutting and cracking resistance due to the stone-on-stone contact and rich mortar created by the high amount of fines, mineral filler and binder. The benefit of using this type of mix is the extension of service life and the lower overall life cycle cost of the roadway.

WSDOT has used SMA on its roadways five times. The agency's first SMA project, on SR 524 in Lynnwood, was completed in 1999 life is 15-17 years, indicating that SMA can extend the service life of an overlay by at least four years.

WSDOT receives sixth Perpetual Pavement Award

WSDOT received a Perpetual Pavement Award from the Asphalt Pavement Alliance for a 7.13-mile section of State Route 12 in Lewis County. The award for 2019 was WSDOT's sixth Perpetual Pavement Award.

To qualify for a Perpetual Pavement Award, a pavement must be at least 35 years old and have never suffered a structural failure. It must also demonstrate excellence in design, quality construction and high value to taxpayers.

2018

WSDOT receives fifth Perpetual Pavement Award

WSDOT received a 2018 Perpetual Pavement Award from the Asphalt Pavement Alliance for a 5.88-mile section of State Route 195 in Whitman and Spokane counties. The award was WSDOT's fifth Perpetual Pavement Award.

To qualify for a Perpetual Pavement Award, a pavement must be at least 35 years old and have never suffered a structural failure. It must also demonstrate excellence in design, quality construction and high value to taxpayers.

2017

WSDOT receives fourth Perpetual Pavement Award

WSDOT received a 2017 Perpetual Pavement Award from the Asphalt Pavement Alliance for a 4.42-mile section of State Route 16 in Pierce County. The award was WSDOT's fourth Perpetual Pavement Award.

To qualify for a Perpetual Pavement Award, a pavement must be at least 35 years old and have never suffered a structural failure. It must also demonstrate excellence in design, quality construction and high value to taxpayers.

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