Site Navigation Iowa Minnesota Montana Nebraska North Dakota South Dakota Wyoming     South Dakota 42, Business Spur I-29, Business Loop I-229 West South Dakota 42 & Business Loop Interstate 229 West The westbound beginning of Business Loop Interstate 229 occurs after the South Dakota 42 single point urban interchange (SPUI) with Interstate 229. Pictured here is the first reassurance assembly that features Downtown in place of Business. Photo taken 04/20/07. 10th Street westbound at Lowell Avenue. Photo taken 04/20/07. Jessica Avenue leads southward from Business Loop Interstate 229 & South Dakota 42 (10th Street) west to Cherry Rock Park. Photo taken 04/20/07. Business Loop Interstate 229 & South Dakota 42 (10th Street) sinks toward the Big Sioux River beyond Blauvelt Avenue. Photo taken 04/20/07. The second reassurance marker for Business Loop Interstate 229 west resides ahead of Cliff Avenue. Cliff Avenue heads south to McKennan Hospital. Photo taken 04/20/07. Westbound 10th Street at Cliff Avenue. Nelson Park occupies the southwest corner of this intersection. Photo taken 04/20/07. Fairfax Avenue travels behind Nelson Park to a commercialized intersection with Business Loop Interstate 229 & South Dakota 42 (10th Street). Photo taken 04/20/07. Business Loop Interstate 229 & South Dakota 42 partition into a one-way street couplet beyond Franklin Avenue. Photo taken 04/20/07. A viaduct carries 10th Street over railroad tracks and the Big Sioux River into downtown Sioux Falls. Photos taken 04/20/07. Reid Street ties into the 10th Street elevated highway from 8th Street before it touches down in the Sioux Falls central business district. Photos taken 04/20/07. The viaduct descends and intersects 2nd Avenue at River Road. Photo taken 04/20/07. Continuing west on Business Loop Interstate 229 & South Dakota 42 (10th Street) to Phillips Avenue in downtown Sioux Falls. Photo taken 04/20/07. Next on 10th Street west is the signalized intersection with Main Avenue. Photo taken 04/20/07. Approaching Dakota Avenue on Business Loop Interstate 229 & South Dakota 42 west. Photo taken 04/20/07. Business Loop Interstate 229 and South Dakota 42 split at the 10th Street intersection with Minnesota Avenue. Business Loop Interstate 229 joins South Dakota 115 south from this point back to Interstate 229. Minnesota Avenue north carries Business Spur Interstate 90 & Minnesota 115 north toward Sioux Falls Regional Airport and Interstate 90. 10th Street continues South Dakota 42 west to 12th Street, gaining Business Spur Interstate 29 in the process. The shield assembly for South Dakota 115 and Business Spur Interstate 29 is posted beyond the Minnesota Avenue intersection, making it hard to figure out the numbered alignments. Historically, this intersection used to represent the junction between U.S. 16 (now South Dakota 42) and U.S. 77 (now Minnesota 115). Photo taken 04/20/07. South Dakota 42 & Business Spur Interstate 29 West South Dakota 42 replaces Business Loop Interstate 229 with Business Spur Interstate 29 west of South Dakota 115 (Minnesota Avenue) in downtown Sioux Falls. The Business Spur coincides with the state highway back to Interstate 29 (Exit 79), but is not signed on the 10th Avenue assembly ahead of Spring Avenue. Photo taken 04/20/07. Business Spur Interstate 29 & South Dakota 42 west veer southward from 10th Street onto Menlo Avenue. Photo taken 04/20/07. Menlo Avenue carries South Dakota 42 onto 12th Street for its westward alignment to Interstate 29. 10th Street continues into a residential area. Photo taken 04/20/07. Business Spur Interstate 29 & South Dakota 42 (12th Street) west approach the single point urban interchange with Interstate 29. Photo taken 04/20/07. Interstate 29 north continues through Sioux Falls five miles to junction Interstate 90. Business Spur Interstate 29 ends as South Dakota 42 (12th Street) continues westward to Webster Grove and other fringe suburbs. Photo taken 04/20/07. Page Updated March 27, 2008.