Another traffic switch for the Main Street bridge at I-65 in Johnson County goes into effect Friday night.

Harry Maginity, spokesman for the Indiana Department of Transportation, says that southbound lanes of the interstate will be routed to the northbound side, via a median crossover, at mile marker 100 near Greenwood. This change will put northbound and southbound I-65 lanes on the east half of the structure, he says. Maginity notes that this will vacate lane on the west half of the bridge to allow for demolition and reconstruction.

INDOT says that southbound I-65 lanes will switch back to the southbound side at a median crossover at mile marker 98.8, south of the bridge.

Maginity says that the changes are scheduled to begin at 9 p.m. Friday, when the two left southbound lanes of I-65 approaching the Main Street bridge will close to traffic. He explains that this will provide room for crews to relocate concrete barrier walls and do other work prior to switching traffic to the northbound side. Maginity notes that one lane of southbound I-65 will remain open.

INDOT says that additional changes in the I-65 traffic pattern will occur Tuesday night, between mile markers 96.7 and 98.4. In addition, officials say that they plan to delay closure of County Road 350 until Monday, June 13.

Maginity says that this work is part of the $84 million Major Moves 2020 project, which will add travel lanes to I-65 between Greenwood and Franklin.