Road was built next to it on its west side, taking more homes. Part of Powder Springs Street was permanently torn out, leaving the rest of it north to the town square as Old Powder Springs Street. The relocated Powder Springs Street was angled off to the west to become the western section of the Loop, and was extended north just past Whitlock Avenue to Polk Street. Work began again in the early 1980s to complete most of the northern quadrant when the roadway was extended from the previously-mentioned diamond interchange to connect to and take over Page Street. The planned overpass of US 41 was never built and an at-grade intersection was put there instead. However, the ramps still curiously remain, with the southern (eastbound) one actually used as an entrance ramp, and the northern (westbound) one connecting to Barnes Mill Road instead. Page Street had previously ended at Fairground Street, and the extension completed all parts of the loop except one final part. 1989 saw completion of the final leg of the loop at its northwestern corner, going west past Church Street (by then a one-way street which at the time was SR 5 southbound). This portion took out the Williams Brothers Lumber Company, and involved building an entrenched roadway with an overpass for Kennesaw Avenue (the original US 41 and SR 3) and the L&N Railroad, with the roadway tying into the extension of the new Powder Springs Street, which previously ended at Polk Street. The completion of this final leg resulted in the completion of the loop. In addition, SR 5 was relocated out of downtown Marietta onto part of the new loop to the west; it was later rerouted through a completely different city, going down Austell Road instead of Powder Springs Road, and may be rerouted yet again off of the loop and completely away from Marietta onto Barrett Parkway. In October 2007, the portion of SR 120 along Roswell Street between US 41 and SR 5 and SR 120 Loop was downgraded to a local city street, along with portions of SR 5. Since SR 120 required a new routing, SR 120 mainline was moved to the southern part of SR 120 Loop, and SR 120 Alternate was created on the north loop. As a result, SR 120 Loop no longer exists, though only some of the signs have been changed, leaving a