Conditions permitting, the I-285-Ashford Dunwoody Interchange Bridge will close for Diverging Diamond Interchange construction beginning at 9 p.m. Friday, June 1 and will reopen at 5 a.m. Monday, June 4 for crossover traffic.
Only the bridge ramps will be open during the weekend bridge closure and traffic will be detoured through the I-285 Perimeter Center Parkway "flyover" bridge.
When the crossover opens, traffic on Ashford Dunwoody Road will cross from the right side of the roadway to the left side at a ramp intersection signal so vehicles may make free left turns onto the I-285 freeway on ramp. Traffic will then cross back to the right side of the road at a second ramp intersection. A loop ramp used to access I-285 East from the interchange bridge that has been a major contributor to the congestion in the orridor will be removed.
Signage, lane striping and curbs will be in place to guide and safely separate opposing traffic as it moves through the interchange. Police officers also will be on duty at the interchange throughout the weekend and after the bridge reopens to assist motorists with the new configuration.
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