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) , <br /> 12. <br /> (Hillsborough) funded - construction not authorized. <br /> C) The difference between those improvements requested and those <br /> programmed is a function of the NCDOT Traffic Engineering Branch's <br /> Public At Grade Crossing Investigative Index. This index is a <br /> formula that indicates the most dangerous crossings, in priority <br /> order, across the state. Therefore the crossings within Orange <br /> County must compete with the rest of the state for improvements <br /> and on a statewide basis may not be as bad as other intersections. <br /> SOURCE: Don Adams, Railroad/Highway Grade Crossing Safety <br /> Engineer, NCDOT Traffic Engineering Branch ( 919 ) 733-3915 . <br /> IV. Maintenance of Bridges - Currently NCDOT has a "tremendous <br /> backlog" regarding the painting of bridges. This backlog has been <br /> caused by the lead content in bridge paints previously used. <br /> Because of environmental regulations removal of lead based paints <br /> must now be handled and disposed of as hazardous material. This <br /> has increase the cost of painting from $ 1 . 75 per square foot to <br /> over $ 9. 00 per square foot. <br /> SOURCE: Jimmie Lee, Head of NCDOT's Bridge Maintenance Unit, <br /> ( 919) 733-4362 . <br /> VI. Bridge Replacement Prolects - There has been no change in the <br /> programming of last year's request other than: project B-2599 has <br /> been completed and project B-2100 is currently under construction. <br /> SOURCE: 1995-2001 STIP / A.E. Moore, District Bridge Maintenance <br /> Engineer, ( 910 ) 570-6818. <br />