The N18 Interchange is the section where the new Dual Carriageway connects with the existing N18 Dual Carriageway. A section of both the eastbound and westbound lanes of the existing N18 will be realigned and the mainline South Ring Road will cross over it. Two new roundabouts, Cratloemoyle Roundabout, (located at the SAS Radisson Hotel) and Meelick Roundabout (located at the Two Mile Inn Hotel) will replace the existing median gaps. Public lighting will be provided along the length of the realigned section of the existing N18 associated with the interchange.