One of Indiana’s biggest interchanges is marking construction milestones.

Holcomb’s two predecessors — former Vice President Mike Pence and former Gov. Mitch Daniels — joined him at a morning ceremony on Indianapolis’ southwest side, hours before Interstate 69’s southbound ramps to Interstate 465 were scheduled to open to traffic.

The completion of a key interstate puzzle piece is in sight as the last section of I-69 in Marion and Johnson counties finishes construction this year.