Business U.S. Highway 59-D (Bus. US 59-D), formerly Loop 455, is a long business loop in Carthage. This is the oldest signed business route of US 59 in Texas, having been originally designated on October 21, 1959 with the hidden designation of Loop 455, after US 59 was re-routed and bypassed Carthage. Loop 455 was retired on June 21, 1990 and redesignated fully as Bus. US 59-D.
