State and local traffic officials announced Thursday a series of changes to Interstate 20 that will affect motorists in the weeks ahead.

The changes come as construction on the I-20 and Bobby Jones Expressway interchange reaches the halfway point.

Officials said Thursday that they hope crews get most of the work done by Thanksgiving, then reopen the Davis Road ramps. About that same time they expect to have construction wrapped up at the intersection of Scott Nixon Memorial Drive and Bobby Jones Expressway.

Construction on the first of the new flyover ramps at Bobby Jones Expressway and I-20 is to be completed in March.