From the south, Highway 129 begins as a continuation of LA 33 at the state line. Heading north, Highway 129 produces a business route, Highway 129B, which serves the residential areas of Huttig. After about 9 miles (14 km), Highway 129 joins with Highway 275, running concurrently until an intersection with US 82 terminates Highway 129. AR 275 continues north to US 63.
AR 129 is an undivided, two-lane road for its entire route.
Highway 129 first shows up on the 1928 Arkansas state highway map as a short route from the Louisiana state line to State Road 2 in Huttig.[3] The route was later extended to Strong around 1930 as State Road 2 was rerouted through Crossett.[4] The short segment to Lawson was added between 1965 and 1966 and remains along the original alignment today.[5][6]
Highway 129 Business (AR 129B, Ark. 129B, and Hwy. 129B) is a north–south state highway business route at Huttig. The route of 2.24 miles (3.60 km) serves to connect Huttig to the state highway system.[2]
^ abcdefPlanning and Research Division (March 28, 2012). "Arkansas Road Log Database". Arkansas State Highway and Transportation Department. Archived from the original(MBD) on June 23, 2011. Retrieved April 13, 2012.
^ abcdGeneral Highway Map, Union County, Arkansas(PDF) (Map). 1:62500. Cartography by Planning and Research Division. Arkansas State Highway and Transportation Department. June 11, 2010. Archived from the original(PDF) on March 13, 2012. Retrieved April 14, 2012.