Interstate 29 in South Dakota: Wikis


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Interstate 29
Main route of the Interstate Highway System
Maintained by South Dakota DOT
Length: 252.50 mi[1] (406.36 km)
South end: I-29 at Iowa state line
I-229 in Sioux Falls
I-90 near Sioux Falls
North end: I-29 at North Dakota state line
South Dakota numbered highways
< SD 28 SD 30 >

In the U.S. state of South Dakota, Interstate 29 traverses on the eastern side of the state, bypassing through Sioux Falls, the state's largest city.


Route description

An older version of the I-29 shield as used in South Dakota, still commonly seen along the route

Interstate 29 crosses over the Iowa state line at the Big Sioux River and enters in Union County. Its first city, North Sioux City can be accessed from exit 2. The route then runs northwest until its interchange at exit 26, South Dakota Highway 50, where the interchange serves the cities of Vermillion and Yankton. It turns north after this exit and heads for Sioux Falls. Before entering the state's largest city, Sioux Falls, it makes a junction with Interstate 229 at exit 75, just right before leaving Lincoln County and entering Minnehaha County. The auxiliary route, I-229, serves the eastern side of the city and is an alternate junction to Interstate 90. In Sioux Falls, I-29 serves the western side of the city.[2]

After leaving the Sioux Falls city limits, I-29 makes its interchange at exit 84, Interstate 90. Afterwards, it continues north past Brookings, the county seat of Brookings County. At the intersection with South Dakota Highway 28, I-29 turns northwest upon entering Deuel County. After leaving Watertown, the route continues northwest and chips in the northeastern corner of Hamlin County. The route then north after entering Codington County and serves Watertown at exit 177, U.S. Route 212. At exit 180, I-29 makes a junction with U.S. Route 81 and its alignment is cosigned with I-29 from exit 212 all the way to Grand Forks, North Dakota. In Grant and Roberts counties, it traverses through the eastern side of the Sisseton and Wahpeton Indian Reservation. Then the route finally enters the state of North Dakota in Richland County.[2]


Consolidated law

The South Dakota section of Interstate 29 is defined in South Dakota Consolidated Laws § 31-4-152.[3]

Exit list

County Location Mile[4] # Destinations Notes
Union 0.98 1 Dakota Dunes
North Sioux City 2.48 2 North Sioux City
4.35 4 North Sioux City, McCook Lake Serves Adams Homestead and Nature Preserve
9.50 9 SD 105 south – Jefferson
Elk Point 15.78 15 I-29 Bus. north – Elk Point
18.30 18 I-29 Bus. south – Burbank
26.70 26 SD 50Vermillion, Yankton
31.27 31 SD 48Spink, Akron
38.32 38 Volin Serves Union Grove State Park
42.31 42 Alcester, Wakonda
Beresford 47.30 47 SD 46Beresford, Irene Serves Fort Randall Dam
50.31 50 Centerville, Hudson
53.32 53 Viborg
56.33 56 Fairview
59.33 59 US 18 west – Davis, Hurley South end of US 18 overlap
62.35 62 US 18 east – Canton North end of US 18 overlap
64.33 64 SD 44Worthing
68.35 68 Lennox, Parker
71.36 71 Harrisburg
73.38 73 Tea
Sioux Falls 75.19 75 I-229 north
Minnehaha 77.26 77 41st Street Serves Augustana College and University of Sioux Falls
78.12 78 26th Street Serves National American University
79.26 79 SD 42 (12th Street)  – Downtown
80.29 80 Madison Street – Ellis Serves W.H. Lyon Fairgrounds
81.32 81 Russell Street, Maple Street – Arena and Convention Center
82.41 82 Benson Road
83.38 83 SD 38 west (60th Street north)  – Airport Sign.svg Sioux Falls Regional Airport
84.15 84 I-90  – Albert Lea, Rapid City Signed as exits 84A (east) and 84B (west)
86.40 86 Renner, Crooks
94.49 94 Baltic, United States Geological Survey, EROS Data Center, Lyons
98.47 98 SD 115 south – Dell Rapids, Colton
Moody 104.81 104 Trent, Chester
109.83 109 SD 34Madison, Colman, Egan
114.82 114 SD 32Flandreau
121.83 121 Nunda, Ward, Rest Area
Brookings 127.80 127 File:SD 324.svg SD 324Elkton, Sinai, Medary
Brookings 132.79 132 I-29 Bus. / US 14Brookings, Huron, Aurora, Bushnell
133.78 133
US 14 Bus.Volga, Arlington
140.77 140 File:SD 140.svg SD 140White, Bruce
Deuel 150.87 150 SD 28Toronto, Estelline
157.63 157 Brandt
Deuel, Hamlin 164.53 164 SD 22Castlewood, Clear Lake
Codington Watertown 177.93 177 US 212Watertown, Kranzburg
180.94 180 US 81 south – Watertown South end of US 81 overlap
185.95 185 Waverly
193.02 193 SD 20South Shore, Stockholm
Grant 201.05 201 Twin Brooks
Roberts 207.29 207 US 12Aberdeen, Milbank
213.87 213 SD 15Wilmot
224.02 224 Peever
232.07 232 SD 10 - Sisseton, Browns Valley
242.02 242 (no name)
246.42 246 SD 127New Effington, Victor, Rosholt


Interstate 29
Previous state:
South Dakota Next state:
North Dakota


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