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South Dakota Highway 240

Route map:
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Highway 240 marker
Highway 240
Badlands Loop
Route information
Maintained by SDDOT
Length40.033 mi[1] (64.427 km)
Major junctions
West end I-90 / I-90 BS / US 14 in Wall
Major intersections SD 377 in Badlands National Park northeast of Interior
East end I-90 south of Cottonwood
Location
CountryUnited States
StateSouth Dakota
CountiesPennington, Jackson
Highway system
  • South Dakota State Trunk Highway System
SD 239 SD 244

South Dakota Highway 240 (SD 240), also signed as the Badlands Loop, is a 40.033-mile-long (64.427 km) state highway in southeastern Pennington and northwestern Jackson counties in South Dakota, United States, that travels through the eastern portion of Badlands National Park.

Route description

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SD 240 winding through Badlands National Park, July 2013

SD 240 begins in Wall at exit 110 of Interstate 90 (I-90). It travels south to Badlands National Park, where it turns southeast. At the Badlands Headquarters at Cedar Pass, the highway turns northeast, ending at exit 131 of I-90 near Cactus Flat. Because the highway enters a national park, there is an entrance fee charged along the highway at either entrance to the park. The fee is $30 per passenger vehicle, good for 7 days.[2]

History

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Eastern portions of the highway that are currently designated as SD 240 (generally from the park headquarters to Cactus Flat) were originally part of the original alignment of SD 40. Construction began in the early 1930s. By 1944, a gravel surface was on the Badlands Loop alignment, and by the late 1940s, the Badlands Loop was signed as U.S. Route 16 Alternate (US 16 Alt.), in addition to SD 40 along the eastern portion of the loop. These two numbers were used until the early 1970s, when the SD 40 number was replaced by an extension of SD 44 (which entered the park from the southeast rather than the northeast).

Around 1980, US 16, which traveled concurrently with I-90, was truncated at its eastern end to Rapid City. Since US 16 Alt. no longer met the parent route, the route number was changed to SD 240.

Major intersections

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CountyLocationmi[1]kmDestinationsNotes
PenningtonWall0.0000.000 I-90 / US 14 (I-90 Bus. west (Glenn Street north)) – Rapid City, KadokaWestern terminus of SD 240; eastern terminus of I-90 Bus.; southern terminus of Glenn Street; I-90 exit 110
Conata Township7.411.9Pinnacles Entrance Station
Badlands National Park entrance fee required
JacksonInterior Township31.51250.714
SD 377 south – SD 44, Interior, Rapid City, Cedar Pass Campground
Northern terminus of SD 377
28.646.0Northeast entrance station
Badlands National Park entrance fee required
Northwest Jackson35.356.8Service Road (SD 248)Western terminus of SD 248
40.03364.427 I-90 / Cottonwood Road north – Wall, KadokaEastern terminus; roadway continues as Cottonwood Road; I-90 exit 131
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

See also

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References

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  1. ^ a b "Transportation Inventory Management". South Dakota Department of Transportation. Retrieved December 17, 2011.
  2. ^ Public Domain This article incorporates public domain material from Badlands National Park. National Park Service. Retrieved 2021-10-25.
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