A 0.226 mile segment of Business Spur I-29P is on the state logs at North Sioux City. The spur links Exit 4 with old U.S. 77 / Highway 105 along Northshore Drive. The spur ran east along River Drive as an unsigned route from Exit 2 to Military Road (historic U.S. 77). This portion of route is locally maintained now.1

SF 105 was designated following the decommissioning of U.S. 77 from South Dakota in 1982. The state highway looped east from Interstate 29 through North Sioux City via River Drive, Military Road and Main Street to follow old U.S. 77 north to McCook and Jefferson. SD 105 returned to Interstate 29 via Dakota Street and Exit 9. 1998 legislation decommissioned the state highway south of Jefferson, although a short section from I-29 into Jefferson remained in the system until at least 2007. The route is now a part of Union County Road 1B otherwise.

River Drive - East
River Drive east at the northbound on-ramp for Interstate 29. The west side of River Drive spurs to several motel and hotels and a mobile home park off McCook Lake. 06/17/15
Although already within the city of North Sioux City, this sign alerts motorists joining River Drive east from Interstate 29. 06/17/15
Derby Lane forms an east side frontage road to I-29 between River Drive and Military Road. The service road serves a number of industrial businesses. 06/17/15
Merrill Boulevard provides the main entrance to Gateway Business Park. The business park is the former home of Gateway, Inc. The facility employed over 6,000 employees at its peak in the late 1990s. However with the company purchased by Acer Inc. in 2007, nearly all jobs were shifted away from the corporate campus in North Sioux City. 06/17/15
River Drive ends at Military Road, the former alignment of U.S. 77 south into Sioux City. SD 105 turned north from River Drive onto Military Road to connect with Main Street across the adjacent BNSF Railroad line nearby. 06/17/15
River Drive - West
Leading west from Military Road (old U.S. 77) along River Drive. The route to I-29 is unmarked. 06/17/15
River Drive travels with four overall lanes to intersect Merrill Boulevard at Gateway Business Park. 06/17/15
Derby Line was realigned to intersect River Drive further east from Interstate 29. A second section of Derby Lane heads south alongside the freeway to become Cottonwood Lane by Exit 1. 06/17/15
An array of traveler services line River Drive both east and west of the diamond interchange with Interstate 29. 06/17/15
Elk Point is the northbound control city for Interstate 29 in place of Sioux Falls. 06/17/15
Interstate 29 travels 13.3 miles north to Elk Point and 75 miles to Sioux Falls. 06/17/15
A pair of 1981-built bridges carry Interstate 29 across River Drive as the freeway heads south toward Sioux City. These overpasses were reconstructed in 2000. 06/17/15
River Drive ends at McCook Mobile Estates, 0.2 miles west of the I-29 southbound on-ramp. 06/17/15

  1. The Unofficial South Dakota Highways Page by (Chris Geelhart). http://www.northernplainshighways.org/sdakota/sd1-30.html

Photo Credits:

06/17/15 by AARoads

Connect with:
Interstate 29

Page Updated 07-20-2016.

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