[2][3] Construction of the outer loop began in the early 2000s, beginning with the section from US 68 (Bowling Green Road) to KY 90 (Happy Valley Road) to US 31E (Jackson Highway) on the west and north sides of Glasgow, which was completed in 2004.
When that extension was completed in 2012, the KY 3160 designation was decommissioned when US 68 was rerouted onto the Outer Loop, and the original US 68 through Glasgow became US 68 Business.
[citation needed] On May 28, 2015, the Veterans Outer Loop was extended on Glasgow's west side.
The extension traveled from the original western terminus to an intersection with Old Bowling Green Road (KY 1297).
[5] The project also included a new interchange on Cumberland Parkway at mile marker 8.8, just east of Beaver Creek (a tributary of the Barren River), signed as exit 8.