New grading technology keeps runway on schedule

In July 2010, the City of Dayton awarded Barrett Paving Materials Inc. a $4.5 million contract to resurface the 1,700-ft. by 150-ft. concrete surface of Runway 18-36. Plans also called for an upgrade to the runway's underdrainage structures, resurfacing of a 40,000-sq.-ft. blast pad located behind the runway with 6 in. of bituminous base material and 2 in. of bituminous surface and construction of 6½ in. of bituminous base topped by 1½ in. of bituminous surface for a taxiway leading to the runway. In addition, Barrett was contracted to excavate and construct a 12-in. crushed aggregate base and 8-in. asphalt overlay on an 87,500-sq.-ft. terminal shoulder and also was awarded a contract to resurface pavement in front of an aviation center where pleasure craft are stored.

The construction schedule originally called for work to begin in November 2010 around the airport terminal, but temperatures were too low to place silicone joint sealer, noted Nick Meyer, Barrett's project manager. In mid-May 2011, work began on the east and west shoulders of Runway 18-36. Eight inches of asphalt pavement were milled and 12 to 14 in. of subgrade were excavated using a Roadtec cold planer to the specified elevation using a Topcon Positioning Systems Millimeter GPS+.

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