Interstate Business Route 29

Interstate 29 has five active business routes in Missouri and South Dakota, and Interstate 29 has two business connections related to U.S. 81 in North Dakota. The Interstate 229 bypass around Sioux Falls, South Dakota, used to have a business loop as well.

	Location Status Description MISSOURI St. Joseph Active This business route starts at Exit 44. Heading northwest along Belt Hwy (U.S. 169), the loop turns west at Pear Street, northwest along Garfield Ave., north along the 9th/10th Street couplet through downtown, east along Missouri State Route 6 (Frederick Avenue/old U.S. 36), and north along U.S. 169. The business route leaves U.S. 169 and joins with U.S. 59 northbound. It rejoins Interstate 29 at Exit 53. Business U.S. 71 continues north of this point to serve Savannah. SOUTH DAKOTA North Sioux City Active This business spur follows Old U.S. 77 from Exit 2 to Military Road in North Sioux City. Shown as Business Spur I-29P in Chris Geelhart's South Dakota Highways page. Elk Point Active Between Exits 15 and 18, this loop follows old U.S. 77. South Dakota uses a unique method to signing its business loops. The advance signs for the first exit show the business loop shield and the city served the loop. The signs marking the "other end" of the city do not have a shield or city name; they only have the exit number and an arrow marking the exit. Sioux Falls Active/ Locally Maintained This business spur (also called a "Downtown Spur") serves Sioux Falls via South Dakota 42 (12th Street). Connects with Business Spur I-90 and Business Spur I-229 in downtown Sioux Falls. Three business Interstate connections intersect at Minnesota Avenue and 10th/11th Streets: Business Loop I-229, Business Spur I-29, and Business Spur I-90, making Sioux Falls the only city with two Interstate business spurs and a business loop intersecting at the same place. Field reports indicate that there is no "end" signage at this intersection. Thanks to Chris Geelhart and Ed Wilson for clarifying the routing of Business Spur I-29. According to Brad Schwartze, in 2006, South Dakota 42 and South Dakota 115 (and the Business Loops/Spurs in Sioux Falls) were turned over to the city of Sioux Falls. South Dakota DOT's Transportation Inventory Management group indicates that both state highways within city limits were given to the city so that the city can control the traffic management. Brookings Active Between Interstate 29 exits 127 and 132, Business Loop I-29 in Brookings follows U.S. 14, South Dakota 324, and the old U.S. 77 alignment. According to Chris Geelhart, the business loop was commissioned sometime after the early 1990s. NORTH DAKOTA Fargo Not a Business Loop Business U.S. 81 in Fargo is not signed as Business Loop I-29. Michael Frank wrote to clarify the situation on June 1, 1999: "Also, a comment on I-29 in Fargo and Grand Forks. I was in Fargo this weekend. They do not use the Business Loop I-29 sign - they use the U.S. 81 signing. (It may even say Business U.S. 81 at times). The only reason I can think of that they approached this differently than Interstate 94 is that U.S. 81 exists on its own in northern North Dakota for quite a while, so they decided to acknowledge its existence more than old U.S. 10." Grand Forks Not a Business Loop This is Business U.S. 81; see the note for Fargo, above.

Interstate Business Route 229

	Location Status Description SOUTH DAKOTA Sioux Falls Active/ Locally Maintained Business Loop I-229 starts at Exit 3 from Interstate 229, heads north of Minnesota Avenue/former South Dakota 115, meets Business Spur I-29 and Business Spur I-90 at the intersection of Minnesota Avenue and 10th/11th Streets, turns east along 10th Street/South Dakota 42, and terminates at Interstate 229 (Exit 6). Thanks to Chris Geelhart and Ed Wilson for clarifying the exact routing of Business Loop I-229. While many signs were removed in a project around 2003, those signed have since been restored (we visited in 2007). According to Brad Schwartze, in 2006, South Dakota 42 and South Dakota 115 (and the Business Loops/Spurs in Sioux Falls) were turned over to the city of Sioux Falls. South Dakota DOT's Transportation Inventory Management group indicates that both state highways within city limits were given to the city so that the city can control the traffic management.

Page Updated July 29, 2008.