The Washington Asphalt Pavement Association (WAPA) was formed in 1954, originally as the Asphalt Pavement Association of Washington (APAW), by a progressive group of hot mix asphalt producers from throughout Washington State.  Now, 60+ years later, the association is still going strong and represents the private companies that produce over 98% of the hot mix asphalt (HMA) produced in Washington.

WAPA’s membership roster also includes an impressive list of critical Associate Members from multiple industries, agencies and academic institutions.  The Associate Members are key partners in promoting quality and efficiency within the HMA paving community.

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