Interstate 475 Georgia
Interstate 475 (unsigned Georgia 408) is a six-lane bypass for I-75 to the west of Macon in central Georgia. The freeway allows long distance travelers between Atlanta and Florida with an alternative to the in-city route of Interstate 75 through Macon. As such, a rest area lines the northbound lanes ahead of Exit 9.
The concept of Interstate 475 emerged from the shift of I-75 from a path west of Macon to a route through the city at the urging of local officials. I-475 was completed in 1967, allowing through traffic along Interstate 75 a seamless route between Atlanta and Valdosta, as construction on I-75 through Macon continued until 1971.1
The Macon bypass was expanded from four to six lanes between 1998 and 2002. An $83.4-million project rebuilt the south wye interchange between Interstates 75 & 475 to both incorporate new collector distributor roads along I-75 between I-475 and Hartley Bridge Road and widen 3.7 miles of freeway. The contract was awarded in August 2006 with work completed in October 2009.2
North End – Bolingbroke, Georgia
South End – Macon, Georgia
|Perspective from Interstate 475 south|
|Pull through signage on southbound Interstate 475 at U.S. 80 & Georgia 22 (Exit 3) simply references Interstate 75 south Valdosta, Tampa. Photo taken 05/28/05.|
|Interstate 475 plies across wetland areas associated with Tobesofkee Creek to split into side by side wye interchanges with both the Interstate 75 mainline and a distributor roadway (Exit 1) to Hartley Bridge Road. Photo taken 11/07/14.|
|Three lanes proceed onto Interstate 75 south toward Warner Robins and Perry while Exit 1 departs to Hartley Bridge Road for Skipperton and adjacent rural areas of south Macon – Bibb County. Photo taken 11/07/14.|
|This shield assembly formally recognizes the transition of Interstate 475 south onto I-75. Photo taken 11/07/14.|
|End shields line both sides of Interstate 475 as travelers continue south onto an eight lane freeway to Sardis Church Road (Exit 153). Photo taken 11/07/14.|
|Historic Perspective from Interstate 475 south|
|Prior to the upgrades completed in 2009, the Hartley Bridge Road off-ramp departed one half mile beyond the merge of I-475 onto I-75, resulting in a weaving traffic pattern. Photo taken 05/28/05.|
|A single wye interchange facilitated movements onto Interstate 75 south from Interstate 475 prior to 2006. Photo taken by Chris Patriarca (07/06/03).|
|Drivers joined Interstate 75 south after this end shield. Photo taken by Chris Patriarca (07/06/03).|
|Perspective from Interstate 75 north|
|Interstate 75 north expands to five overall lanes from the Sardis Church Road on-ramp to the split with Interstate 475 (Exit 156). Photo taken 10/22/15.|
|Passing under Hartley Bridge Road, four lanes of Interstate 75 progress north to the partition with I-475. Two ramps from Hartley Bridge Road accompany the I-75 mainline along a distributor roadway to both freeways as well. Photo taken 07/02/14.|
|70 mile per hour speed limits are maintained on the mostly rural Macon Bypass while Interstate 75 sees a reduced speed limit to 55 mph. The western terminus of Interstate 16 is nine miles to the northeast near Downtown Macon. Photo taken 07/02/14.|
|Three lanes serve both Interstate 475 north toward Atlanta and Interstate 75 north to Macon and I-16. Single lane ramps merge onto the respective freeways from the adjacent Hartley Bridge Road distributor roadway nearby. Photo taken 07/02/14.|
|For photos covering the Hartley Bridge Road connection, see Interstate 75 North – Cordele to Macon on AARoads.|
|Historic Perspective from Interstate 75 north|
|All signs for Interstate 75 and 475 throughout the Macon metropolitan area were replaced with the 1999 Georgia Department of Transportation exit renumbering project, including this two-mile diagrammatic sign south of Hartley Bridge Road (Exit 155). The Sardis Church Road interchange had not been built at this point. Photo taken 05/28/05.|
|Now one mile south of the Interstate 75/475 split of Interstate 75 northbound, this guide sign was removed sometime between 2003 and 2005 in conjunction with construction to upgrade the Hartley Bridge Road exit into a parclo interchange. Photo taken by Chris Patriarca (07/06/03).|
|A third diagrammatic overhead assembly for the Interstate 75/475 split. Traffic continuing into Macon will reach the city limits in four miles at U.S. 41 and Georgia 247 (Exit 160A). Photo taken 05/28/05.|
|Entering the original single wye interchange where Interstate 475 begins. Traffic taking the Macon bypass rejoins I-75 by milepost 177. Photo taken 05/28/05.|
|Perspective from Interstate 475 north|
|Confirming markers for Interstate 475 stand just beyond the separation from I-75 along the freeway northbound. Photo taken 06/30/17.|
- “10 events that shaped our region.” Macon Telegraph, September 30, 2012.
- “Bibb Road Contracts Awarded for $83M – Deal for New Southern Interchange between Interstates 75 and 475.” Macon Telegraph, August 20, 2006.
Page updated July 5, 2017.