Weekend motorists traveling northbound on Ga. 400 can expect traffic delays as transportation workers shift lanes as part of the Hammond Drive half-diamond interchange project, according to an April 5 release from Georgia Department of Transportation.

The work is scheduled to take place from 9 p.m. on April 9 to 5 a.m. on April 12.

“It is the next step in building the interchange,” said Mickey McGee, state transportation engineer. “We know traffic will be heavy as we put the shift in, but by Monday morning they’ll have the same number of lanes they have now – just shifted to the right.”

When the work begins April 9, the right lanes will be closed on Ga. 400 northbound just north of its intersection with I-285. As the work progresses, lane closures will move to the left lanes.  Two northbound lanes will be open at all times. Southbound lanes on Ga. 400 will not be affected.

Beginning the evening of April 10, the ramp from I-285 eastbound to Ga. 400 northbound will be closed for approximately eight hours.  It will reopen the morning of April 11.  A detour for the ramp will be in place.  The ramp from I-285 westbound to Ga. 400 northbound will be open, however there will be a change in the merging and yielding conditions on that ramp.

The weekend work is part of the half-diamond interchange construction at Ga. 400 and Hammond Drive.  The $18.2 million project began in February 2009 and is scheduled to be completed by August 31, 2011.