HARRISBURG, Pa. (WHTM) — PennDOT opened a diverging diamond interchange or DDI in York County on Sunday.

The DDI is the third in the state and second in the south-central region. It officially opened on Sunday, June 27 at 3 p.m. on I-83 Exit 4-Route 851 in Shrewsbury Township.

According to a release “The new DDI configuration includes two lanes in each direction of Route 851. In this configuration, Route 851 traffic approaching the I-83 underpass crosses to the left side of the road at signalized intersections then returns to the right side of the road at a signalized intersection on the opposite end of the interchange.”

The nearly $30 million project replaced both I-83 bridges over Route 851, improved on and off ramps, installed traffic signals, drainage, sidewalks, lighting, guiderails, signs, and road markings.

For more information on the DDI, you can visit the link here.