U.S. Route 16 in South Dakota

U.S. Highway 16 (US 16) is a 69-mile-long (111 km) east–west United States Numbered Highway in the western part of the U.S. state of South Dakota. It travels between Yellowstone National Park in Wyoming and Rapid City. In South Dakota, the highway extends from the Wyoming state line near Newcastle, Wyoming, to Interstate 90 (I-90) in Rapid City.

U.S. Highway 16 marker

U.S. Highway 16

Current US 16 highlighted in red
Route information
Maintained by SDDOT
Length69.00 mi[1] (111.04 km)
Existed1926–present
Major junctions
West end US 16 at Wyoming state line
Major intersections
East end I-190 / I-90 in Rapid City
Location
CountryUnited States
StateSouth Dakota
CountiesCuster, Pennington
Highway system
  • South Dakota State Trunk Highway System
SD 15 SD 16
US 16 eastbound at Keystone Wye

Route description

US 16 is also known as Mount Rushmore Road in western South Dakota. The highway enters South Dakota east of Newcastle, Wyoming. It travels near Jewel Cave, the fourth-longest cave in the world.[2] The highway goes through the city of Custer and shares alignment with US 385. East of Hill City, US 16 splits off US 385. It then becomes a four-lane divided highway, with the two roadways separated by up to 0.5 miles (0.80 km) in some places, including the old gold-mining town of Rockerville, South Dakota, which is contained entirely in the median of US 16. In Rapid City, US 16 follows Mount Rushmore Road to a concurrency with South Dakota Highway 44 (SD 44; Omaha Street) to the southern terminus of I-190. US 16 stays concurrent with I-190 until both highways end at I-90.

This section of US 16 is defined at South Dakota Codified Laws § 31-4-138.[3]

History

US 16 formerly ran all the way across the state, to the Minnesota state line east of Sioux Falls. It entered the state on the current routing of US 14/I-90 (the current routing is former US 216) and followed the US 14 routing to Rapid City. It joined US 216 in Rapid City and continued east into Box Elder. "Highway 14-16", as it was known, was a divided highway through most of Box Elder before returning to a two-lane road. (This road is still in use today, and still referred to as "14-16".) US 16 traveled east to New Underwood, then continued through the foothills to Wasta. The highway ran north of Wasta, across the Cheyenne River, then ran southeast to Wall. In Wall, an alternate route of US 16 (present day SD 240) split from the highway and headed south, through the Badlands National Monument (now Badlands National Park). US 14 and US 16 split south of Philip, with US 14 traveling due east and US 16 continuing south (following present-day SD 73 to its intersection with the eastern end of US 16 Alternate. From there, US 16 traveled due east, on the present-day routing of South Dakota Highway 248 (SD 248). The highway followed this routing through Kadoka, Murdo, and Vivian, where it intersected US 83. The highway continued east to Reliance, where present-day SD 248 ends. US 16 then returned to the current routing of I-90 and followed this routing to Oacoma, where it followed the current I-90 Business to a bridge over the Missouri River into Chamberlain. East of Chamberlain, US 16 followed present day Old Airport Road to East King Street, then turned onto 249th Street just north of where I-90 now lies. It followed 249th Street to Pukwana, present-day 350th Avenue to an intersection with SD 47 (now SD 50), 251st Street to Kimball, and 252nd Street to White Lake. US 16 then followed present-day County Road 34 (also named Old Highway 16) to Mount Vernon and present-day 254th Street to Mitchell. It then followed what is now SD 38 east to 421st Avenue, 421st Avenue to Alexandria, SD 262 to Bridgewater, and SD 42 to Sioux Falls. The highway followed Minnesota Avenue (SD 115), 6th Street, Sycamore Avenue, Madison Street, and Splitrock Boulevard (SD 11) to Brandon. It then followed present-day Aspen Boulevard (formerly South Dakota Highway 264, or SD 264) from Brandon east to the Minnesota state line north of Valley Springs.

Major intersections

CountyLocationmi[1]kmDestinationsNotes
CusterWest Custer Township0.000.00
US 16 west Newcastle
Continuation into Wyoming
Custer26.4642.58

US 385 south / SD 89 south Wind Cave National Park, Hot Springs
Western end of US 385 and SD 89 concurrencies
26.9643.39

US 16A east / SD 89 north Custer State Park
Eastern end of SD 89 concurrency
PenningtonWest Pennington37.4960.33
SD 87 south (Needles Highway) / Peter Norbeck Scenic Byway Sylvan Lake, Custer
37.6960.66
SD 244 east / Peter Norbeck Scenic Byway Mount Rushmore
Hill City40.5165.19



US 16 Truck east / US 385 Truck north
41.0666.08



US 16 Truck west / US 385 Truck south
West Pennington45.0072.42
US 385 north Deadwood, Lead
Eastern end of US 385 concurrency, also known as Three Forks
Unorganized Territory of Mount Rushmore50.6081.43
US 16A west Keystone, Mount Rushmore
Directional-T interchange, also known as the Keystone Wye
RockervilleInterchange; left exits and entrances
Rapid City64.19103.30
US 16 Truck I-90

I-90 BL east (St. Joseph Street)
One way eastbound only

I-90 BL west (Main Street)
One way westbound only

SD 44 east (Omaha Street)
Western end of SD 44 concurrency


I-190 north / SD 44 east (Omaha Street)
Eastern end of SD 44 concurrency; western end of I-190 concurrency; southern terminus of I-190
69.00111.04
I-90 / I-190 ends
Eastern terminus; eastern end of I-190 concurrency; northern terminus of I-190; trumpet interchange
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Special routes of US 16 in South Dakota consist of an alternate route that runs from Custer to near Keystone as well as truck routes in Hill City and Rapid City and formerly included a business route in Rapid City and an alternate route between Wall and Kadoka.

South Dakota Highway 248

Highway 248 marker

Highway 248

LocationBadlands National ParkReliance
Length117.108 mi (188.467 km)
Existed1980–present

South Dakota Highway 248 (SD 248) is a state highway in the U.S. state of South Dakota. The highway travels parallel to I-90 less than one mile (1.6 km) away from it. It travels through Lyman, Jones, and Jackson counties starting near the entrance to Badlands National Park at an intersection with SD 240 (just south of exit 131 on I-90) and terminating at exit 248 of I-90 east of Reliance. SD 248 is a former routing of US 16.

Major intersections

CountyLocationmikmDestinationsNotes
JacksonNorthwest Jackson0.00.0
SD 240 (Badlands Loop) to I-90 Interior, Badlands National Park
Western terminus
11.919.2

To I-90 / SD 73 Philip, Wall, Badlands, Kadoka
I-90 exit 143
Kadoka18.930.4


I-90 BL west to SD 73 / I-90 Martin
Western end of BL 90 concurrency
Northeast Jackson21.134.0



I-90 BL east to CR 4 north / I-90 Wall, Badlands, Belvidere
I-90 exit 152; eastern end of BL 90 concurrency
Belvidere31.851.2
SD 63 (Main Street) to I-90 Belvidere, Norris
Northeast Jackson39.263.1

To I-90 / SD 63 Murdo, Belvidere, Midland
I-90 exit 170
Stamford41.266.3
Stamford Road to I-90 Murdo, Belvidere
I-90 exit 172
JonesGrandview Township46.474.7
To I-90 Murdo, Belvidere
Unnamed gravel road; leads to I-90 exit 177
Okaton52.284.0
262nd Avenue to I-90 Murdo, Belvidere
I-90 exit 183
Central Jones60.1–
60.3
96.7–
97.0
I-90 Belvidere, Draper

I-90 BL begins
I-90 exit 191; western end of BL 90 concurrency
Murdo61.799.3


I-90 BL east to I-90 / US 83 White River
Eastern end of BL 90 concurrency
Draper70.2113.0
To I-90 (CR N13)
Mussman Township77.3124.4
To I-90 (CR S10)
LymanVivian81.8131.6 US 83 Fort Pierre, Pierre
83.4134.2
293rd Avenue to I-90
Former BL 90
Northwest Lyman89.7–
90.0
144.4–
144.8

300th Avenue to I-90 Presho, Draper
I-90 exit 220
Presho94.8152.6

I-90 BL west (305th Avenue) to I-90
Western end of BL 90 concurrency
South Lyman95.8154.2



I-90 BL east (Willow Street) to I-90 / US 183 south Winner, Vivian, Kennebec
Eastern end of BL 90 concurrency; I-90 exit 226
Kennebec104.8168.7
SD 273 / I-90 to SD 1806 Kennebec
Serves as a southern continuation of SD 1806
Lyman111.3179.1
321st Avenue to I-90
Reliance116.5187.5 SD 47 / Lewis and Clark Trail Highmore, Fort Thompson, Gregory, WinnerSD 248 runs along former US 16 until this point
117.1188.5 I-90 Chamberlain, KennebecEastern terminus; I-90 exit 248
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
Browse numbered routes
SD 247SD 248 SD 249

South Dakota Highway 264

Highway 264 marker

Highway 264

LocationBrandonValley Springs
Length6.0 mi (9.7 km)
Existedc.1976–1999

South Dakota Highway 264 (SD 264) was a state highway located on a former alignment of US 16 in eastern Minnehaha County. It was created c.1976, when the South Dakota Department of Transportation and the Minnesota Department of Transportation moved US 16 from surface streets to I-90 in the area.[4][5] The route was decommissioned in 1999.[6]

Major intersections
The entire route was in Minnehaha County.

Locationmi[7]kmDestinationsNotes
Brandon0.00.0 SD 11Western terminus; US 16 continued south on SD 11
Valley Springs6.09.7 CSAH 4 Beaver Creek, LuverneEastern terminus at state line; US 16 continued on CSAH 4
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
Browse numbered routes
SD 262SD 264 SD 271

References

  1. "State Highway Log: Rapid City Region" (PDF). South Dakota Department of Transportation. January 2017. pp. 23–24. Retrieved April 8, 2017.
  2. "Jewel Cave National Monument". U.S. National Park Service. Retrieved May 18, 2008.
  3. "South Dakota Codified Laws". South Dakota Legislature. Retrieved April 4, 2023.
  4. Minnesota Department of Highways (1975). Official Road Map (Map). 1:1,137,760. St. Paul: Minnesota Department of Highways. OCLC 5673160, 80405240, 9519845 via Minnesota Digital Library.
  5. Minnesota Department of Transportation (1977). Official Highway Map Minnesota (Map) (1977–1978 ed.). 1:1,137,760. St. Paul: Minnesota Department of Transportation. OCLC 5673160, 80405240, 4448315 via Minnesota Digital Library.
  6. Geelhart, Chris (March 3, 2005). "SD 200-1806". The Unofficial South Dakota Highways Page. Archived from the original on December 20, 2012. Retrieved February 21, 2022.
  7. Google (February 21, 2022). "Overview Map of SD 264" (Map). Google Maps. Google. Retrieved February 21, 2022.
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