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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.

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 This business spur (also called a "Downtown Spur") serves Sioux Falls via South Dakota State Route 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.

Site Navigation
Interstate Shield Main Page
Business Route Guide
Official Federal Highway Administration Interstate Route Log and Finder List
Three-Digit Interstates (3dis) at Kurumi.com
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.

SOUTH DAKOTA
Sioux Falls Decommissioned Up until early 2003, Business Loop I-229 started at Exit 3 from Interstate 229, headed north of Minnesota Avenue/South Dakota 115, met Business Spur I-29 and Business Spur I-90 at the intersection of Minnesota Avenue and 10th/11th Streets, turned east along 10th Street/South Dakota 42, and terminated at Interstate 229 (Exit 6). Thanks to Chris Geelhart and Ed Wilson for clarifying the exact routing of Business Loop I-229.

However, most of the signs have been removed in a recent project. Jay Maynard writes, "Minnesota Avenue (South Dakota 115 south of downtown), which had been signed as Business Loop I-229, has been under construction the past year or so. That's done now, and it's been widened, something it needed. In the process, they took down all the Business Loop I-229 signs, and it doesn't appear that they'll be replaced. There's one sign bracket at the intersection with Interstate 229 that had a (nonstandard - it said Interstate 229 inside the [green] shield) Business Loop I-229 sign; the shield has been removed, but the bracket hasn't been replaced. I don't know if the route has been decommissioned or not, but the lack of signage along it before tells me they weren't that enthusiastic about it in the first place. I'll keep an eye out and let you know if the signs come back."

Page Updated November 6, 2005.