Kary Asphalt, Inc. and American Paving, Inc. joint ventured as the HMA
sub-contractor on this high profile dualization project in Worcester County. Route 113 runs North and South from Pocomoke City through Snow Hill and Berlin and into Delaware. Traffic volumes average about 8,000 vehicles per day with almost 14,000 ADT at the Delaware Maryland state line. The existing two lane roadway is adequate to carry the existing traffic volumes; however, desirable geometric modifications and the dualization of the current facility should eliminate head on collisions and minimize the number of serious accidents.
David A. Bramble, Inc. is the prime contractor for phase II and III of this design build contract. The total contract value is in excess of $29,300,000.00. David A. Bramble, Inc. selected a full depth asphalt section consisting of 14” of Superpave. Two 4” lifts of 25mm base are capped with two 2” lifts of a 19mm intermediate course and is finished with a 2” lift of 12.5 mm surface.
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 Blaw-Knox paver was used to place Superpave mixture.
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 New surface pavement prior to opening to traffic.
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Kary Asphalt, Inc. did extensive density testing of the HMA placed to date. Hundreds of 6” cores have been taken with almost 50% being taken directly over the longitudinal construction joints. Rob Malone, Field Technician for American Paving, Inc. said that new construction with short pulls allowed many of the longitudinal joints to be constructed with hot material on both sides of the joint.
Mark Coleman is the SHA Project Engineer and David Webster is the Paving Superintendent for American Paving, Inc. High frequency 12 ton vibratory Hypac rollers and Ingersoll DD90 rollers have been used to achieve an average mat density of 94%. Average longitudinal joint densities have been 89.8% with over 65% of the joint cores having densities between 88% and 91.9%. Of the 148 longitudinal joint cores only six were visibly damaged and only one core would qualify as an obvious outlier.
Ed Hunt, QC Manager for Kary Asphalt is proud of the material being produced at the Kary Asphalt HMA plants in Bishop and Eden. The extra effort needed to process these cores is validated by the consistent results achieved and the knowledge gained from this process.
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 Divided roadway section uses paved drainage flumes and weathered steel median barriers.
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 Newly paved roadway prior to traffic switch uses 12.5 Superpave surface.
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 Extensive cores were taken in order to verify longitudinal joint densities.
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