(then SR 100). This stretch opened to traffic on October 5, 1970, and marked the completion of the I-465 beltway around Indianapolis. Subsequent improvements and changes The first of the major postcompletion rebuild and expansion projects occurred from 1999 to 2002, when the heavily traveled northern section of the east leg was modernized and expanded to as many as 13 lanes in one short portion. Concurrently, the east junction with I-70 was rebuilt and reconfigured. In 2000, the Emerson Avenue interchange on the south leg was converted from a conventional diamond to a single-point urban interchange (SPUI), becoming the first SPUI on the I-465 beltway. Between 2004 and 2005, the north extension of I-465's west leg between I-65 and I-865 was rebuilt to widen and update the freeway in this heavily traveled section located along the western edge of the massive Park 100 commercial and industrial development. This segment was rapidly becoming functionally obsolete due to continued growth of that complex as well as that of other nearby residential and commercial projects in Pike Township. Both interchanges along this stretch, 71st Street (exit 21) and 86th Street (exit 23), were totally rebuilt while remaining open to traffic and had loop ramps added for west-to-south movements. In addition, a new northbound exit ramp was added at exit 21 which bridges over 71st Street to directly deposit motorists onto eastbound 73rd Street. On the mainline, dual auxiliary lanes were added in each travel direction between these interchanges and the 79th Street grade separation over I-465 was demolished and rebuilt to allow for the widened freeway below. Distinctive decorative features were also incorporated into most of the grade separation structures within this project. Also, bicycle paths were established along the southern side of both 86th and 71st streets, which included grade separations with the east-to-south ramps at both interchanges. In April 2002, the Indiana Department of Transportation (INDOT) announced the redesignation of the dogleg portion of I-465 as I-865. This change eliminated the three-way intersection of I-465 where the north extension of the west leg met the original north leg (at exit 25). INDOT completed an $800-million (equivalent to $ in ) project called Accelerate 465 to refurbish and reconfigure the original west leg of the loop between July 2007 and December 2012. This project completely rebuilt and added new travel lanes, added auxiliary lanes, rebuilt many grade separations, and reconfigured nearly all