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accidents American Road Builders areas Assistant Authority for Purchasing automobile Bibb County bond Bridge Engineer Building Bureau Cable Cable Cable cent CHAIRMAN Chief Engineer City Civil Engineering Coffee County committee concrete congestion Construction Engineer contract contractor cost County County Highway curves dates for placing Department of Highways Director District Engineer Division driver economic elimination Equipment Initiating request Federal feet financing funds grade crossings grade separations guard rail Highway Department Highway Engineer Highway Planning Survey Highway Research Board improvement inches increase intersection lanes limited load Maintenance Engineer material ment method mileage miles mixed Motor Vehicle nomic North Carolina operation parking pavement problem Proc Public Roads Administration Purchasing Equipment Initiating railroad right-of-way roadway safety sections signals slab South Dakota speed steel subgrade surface tion Title of Authority traffic engineering truck Washington wearing courses width wire Yes Yes Yes