I-229 | |||
Get started | Sioux Falls | ||
End | Sioux Falls | ||
Length | 11 mi | ||
Length | 18 km | ||
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Interstate 229 or I -229 is a short Interstate Highway in the U.S. state of South Dakota. The highway forms the eastern bypass of the state’s largest city, Sioux Falls. The highway is 18 kilometers long.
Travel directions
I-229 to the south of Sioux Falls.
The highway begins on the south side of town, where the road exits from Interstate 29. The highway then has 2×2 lanes, and initially runs to the northeast. New residential areas are being developed in this area. On the southeast side of the city, the highway has 2×3 lanes. One then passes with 2×2 lanes along the east side of the city, due north. North of the city, the highway connects to Interstate 90, which runs from Rapid City to Chicago.
History
I-229 was constructed at the same time as I-29 and I-90 around Sioux Falls and opened to traffic about 1962.
Future
A study was completed in 2017 to determine which measures are necessary in the long term. Proposed improvements included partial widening to 2×3 lanes between 10th Street and 26th Street and reconstruction of the alignment to allow for 65 mph.
Traffic intensities
The highway is not exactly busy. 23,100 vehicles arrive daily from I-29, increasing to 43,380 vehicles on the southeast side of the city. Then it drops again to 16,330 vehicles off I-90.