This abandoned railway line was merged into the Central of Georgia (along with the rest of the Georgia & Florida Railway) in 1971. Investigation of the surrounding areas suggest that clay pits were active near the Savannah River on this line, as well as near its terminus near I-20.
By 1981, the only remaining portions of the line were from Hamburg (at the wye with the Southern Railway) to just north of I-20. This small section was saved because the city set aside some land for an industrial park (even though the tracks were in terrible condition at this point). Despite this, a Southern Railway map from 1980 does not show the spur to the proposed industrial park (whether it was because the track was "impassable" or just not significant is not clear). Naturally, after the industrial park dream died, the tracks were removed, and in the late 80s or early 90s, the city bought the land from Norfolk Southern.
Today, the most visible portion of the former right-of-way is the Greenway walking path, which traverses part of it. There is a dirt path under the I-20 bridge where the old grade is clearly visible. Unfortunately a subdivision was built over the next part of the line, and it disappears for many miles north of the bridge. Part of the grade can be followed to the TTX railcar facility south of town, near where the Norfolk Southern crosses the Savannah River.
Parts of this line are still in use. CSX uses part of the old G&F wye in Greenwood for car storage. Norfolk Southern uses part of the wye in North Augusta for car storage (TTX); the western leg of the wye was incorporated into the golf course as part of the cart path. The easternmost leg of the wye is the active NS mainline from Augusta to Columbia.
Thanks to Frankie Grove for contributing information about this route.