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Njdot Standard Specifications For Road And Bridge Construction 2019 Portable OfficialIf you are a veteran contractor accustomed to the 2007 "Red Book," you cannot afford to ignore these changes. : Minimum lift thickness for certain HMA mixes was reduced to 0.5 inches, while resurfacing projects now require a minimum average thickness of 1.25 inches. Ride Quality Requirements : New equations for determining the target International Roughness Index (IRI) If you are a veteran contractor accustomed to |