Four Lane Resurfacing - SR 59

The surface tolerance specification requirements are modified to use the International Roughness Index (IRI) as follows for all pavements of constant width with at least 1 centerline mile (1.6 km) of continuous paving. Short breaks in paving such as bridge decks, intersections, etc. are not considered breaks in continuous paving. Also included is pavement for ramps, including acceleration lanes and deceleration lanes, where the total length is greater than 0.5 miles (0.8 km); and all interstateto-interstate ramps including acceleration lanes and deceleration lanes, regardless of total length. For roads with less than 1 centerline mile (1.6 km) of paving; ramps, acceleration lanes, and deceleration lanes not included above; and sections of undivided highways, as defined in this note, within corporation limits with posted speed limits less than 40 miles per hour, smoothness measurement and corrective action for all areas of localized roughness with an IRI in excess of 250 inches per mile (3.95 m/km) in 25 feet (7.6 m) is required. For these same areas, no corrective action for 0.1-mile (0.16 km) sections having an MRI (lot roughness) greater than 90 inches per mile (1.42 m/km) is required and no pay adjustments will be made. OHDOT - Four Lane Resurfacing - SR 59

Division 32 -	Exterior Improvements, Operation and Maintenance of Exterior Improvements.
Division 34 -	Transportation, Operation and Maintenance of Transportation.