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U.S. Route 17 Alternate

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Alt plate.svg
U.S. Highway 17 Alternate marker
U.S. Highway 17 Alternate
Route of US 17 Alt. in South Carolina highlighted in red
Route information
Auxiliary route of US 17
Maintained by SCDOT
Length123.900 mi[1][2][3][4][5][6][7] (199.398 km)
Existed1951–present
Major junctions
South end US 17 / US 21 near Pocotaligo
Major intersections
North end US 17 / US 701 in Georgetown
Location
CountryUnited States
StateSouth Carolina
CountiesBeaufort, Hampton, Colleton, Dorchester, Berkeley, Williamsburg, Georgetown
Highway system

U.S. Route 17 Alternate (US 17 Alt.) is a 123.900-mile (199.398 km) alternate route of US 17 in South Carolina that travels between Pocotaligo and Georgetown. It has been four-laned in various segments since 1970.

Route description

US 17 Alt starts at the northern terminus of the US 17-US 21 concurrency near Pocotaligo as a two-lane highway. It heads north along US 21 through Yemassee, where it passes over CSX's Charleston Subdivision and then over SC 68. Due to the presence of a parallel railroad spur along the north side of SC 68, access to and from US ALT 17-21 is only available from bi-directional on-off ramps on the southwest and southeast corners of the bridge. The concurrency continues until US 21 splits off on its own to the northwest. From here it runs through Hendersonville, and then Walterboro, where it merges with SC 63, becomes the northern terminus of SC 303, and the southern terminus of US 15. From that point, US 17 Alt moves away from I-95, running along the southeast side of Lowcountry Regional Airport and moving further northeast. In Summerville, it intersects US 78, has an interchange with I-26, and intersects US 176. At Moncks Corner, it intersects US 52 and is briefly concurrent with that route as the two cross the Dennis C. Bishop Bridge over the Tail Race Canal of the Cooper River just below Lake Moultrie. After crossing the W.H. Andrews Memorial Bridge over the Santee River, it joins another concurrency with US 521 in Sampit, and both routes finally terminate at US 17, along with the southern terminus of US 701 in Georgetown.[8]

History

US 17 Alt was established in 1951 as a renumbering of mainline US 17 from near Pocotaligo to Walterboro, SC 64 from Walterboro to Moncks Corner, SC 179 from Moncks Corner to Jamestown, and SC 528 north of Jamestown to Sampit. US 17 Alt was also overlapped with US 52 in Moncks Corner, SC 41 around Jamestown, and US 521 between Sampit and Georgetown.[9][10][11][12][13][14][15][16][17][18]

The first section to be widened to four lanes was in 1970 from US 78 to I-26. This followed with four-lane sections in Georgetown (1974), its concurrency with US 52 in Moncks Corner (1975), and its concurrency with SC 64 in Walterboro (1979). Since the late 1990s, US 17 Alt has been widening slowly into four-lane from I-26 towards Moncks Corner.

A second US 17 Alt did exist in South Carolina from 1955 to 1994, from the Georgia state line to Limehouse. Today it is part of mainline US 17.

Major intersections

CountyLocationmi[1][2][3][4][5][6][7]kmDestinationsNotes
Beaufort​0.0000.000
 US 17 / US 21 south (Trask Parkway) – Beaufort, Savannah		Southern terminus; south end of US 21 concurrency
HamptonYemassee4.0206.470

 SC 68 west (Connely Street) / Flowers Street south (US 17 Conn. south) to I-95 – Hampton, Allendale		Eastern terminus of SC 68; northern terminus of US 17 Conn.
Colleton​7.40011.909
 US 21 north (Low Country Highway) – Smoaks		North end of US 21 concurrency
Walterboro22.60036.371
 SC 63 west (Sniders Highway) – Varnville		South end of SC 63 concurrency
24.02038.656
 SC 303 south (Green Pond Highway) – Green Pond		Northern terminus of SC 303
24.34039.171
 SC 63 east (Hampton Street) – Jacksonboro		North end of SC 63 concurrency; to USC Salkehatchie
24.51039.445
 US 15 north (Jefferies Boulevard) – St. George		Southern terminus of US 15
24.72039.783

 SC 64 Bus. west (Paul Street) – St. George, Barnwell		South end of SC 64 Bus. concurrency
25.31040.732

 SC 64 Bus. east (Padgett Loop) – Jacksonboro, Charleston		North end of SC 64 Bus. concurrency
26.15042.084 SC 64 (Robertson Boulevard) – Barnwell, Jacksonboro, CharlestonTo USC Salkehatchie
Cottageville35.43057.019
 SC 651 north (Rehoboth Road)		Southern terminus of SC 651
DorchesterThe Forks48.56778.161
 SC 61 north – Ridgeville		North end of SC 61 concurrency; to Givhans Ferry State Park
48.97478.816
 SC 61 south (Beech Hill Road) – Charleston		South end of SC 61 concurrency
Slandsville50.87181.869
 SC 642 east (Dorchester Road) – North Charleston		Southern terminus of US 17 Alt. Trk.; western terminus of SC 642; to Charleston AFB
Summerville57.18092.022 US 78 (Fifth Street) – Charleston, Ridgeville
Berkeley57.98093.310
 SC 165 south (Berlin G. Myers Parkway) / Berkeley Circle north – Ravenel		Northern terminus of US 17 Alt. Trk./SC 165; southern terminus of Berkeley Circle
58.749–
58.920		94.547–
94.823		 I-26 – Charleston, ColumbiaI-26 exits 199 A-B
Goose Creek62.630100.793 US 176 – Goose Creek, Charleston, Holly Hill
Moncks Corner73.280117.933

 SC 6 (Main Street) / SC 6 Truck begins – Charleston, Holly Hill		Southern end of SC 6 Truck concurrency; western terminus of SC 6 Truck
74.750120.298


 US 52 south / SC 6 Truck east – Charleston		Northern end of SC 6 Truck concurrency; southern end of US 52 concurrency
​76.377122.917
 To SC 402 – Cordesville, Huger		Western terminus of access road
​76.520123.147
 US 52 north – St. Stephen, Kingstree, Florence		North end of US 52 concurrency
​90.750146.048
 SC 45 north (Santee River Road) – Alvin, St. Stephen		North end of SC 45 concurrency
Jamestown94.440151.986

 SC 41 south / SC 45 south – McClellanville, Charleston		South end of SC 41 and SC 45 concurrencies
Williamsburg
 No major junctions
Georgetown
 No major junctions
Williamsburg–Georgetown
county line		​100.390161.562
 SC 41 north – Andrews		North end of SC 41 concurrency
GeorgetownSampit114.290183.932
 US 521 north (Georgetown Highway) – Andrews		South end of US 521 concurrency
Georgetown123.730199.124
 US 521 north (Highmarket Highway) – Myrtle Beach, Charleston		North end of US 521 concurrency
123.900199.398
 US 17 / US 701 north – Pawleys Island, Myrtle Beach, Conway, Charleston		Northern terminus; southern terminus of US 701
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

Summerville truck route

Truck alternate plate.svg
U.S. Highway 17 Alternate Truck marker
U.S. Highway 17 Alternate Truck
LocationSummerville, South Carolina
Length8.242 mi[19][20][21] (13.264 km)

U.S. Route 17 Alternate Truck (US 17 Alt. Trk.) is a 8.242-mile-long (13.264 km) truck route for US 17 Alt., mostly within the city limits of Summerville, South Carolina. It serves portions of southeastern Dorchester County and a very brief portion of southwestern Berkeley County. It is entirely concurrent with South Carolina Highway 642 (SC 642) and SC 165 for its entire length.

US 17 Alt. Trk. begins at an intersection with US 17 Alt. southwest of Summerville, in the southeastern part of Dorchester County. This intersection is also the western terminus of SC 642. US 17 Alt. Trk. and SC 642 travel on Dorchester Road nearly in a due east direction before curving to an east-southeast direction. In Limehouse Crossroads, they intersect SC 165 (Bacons Bridge Road). US 17 Alt. Trk. leaves SC 642 and turns left onto SC 165. The two highways travel to the north-northeast. Almost immediately, they cross over Dorchester Creek and the Sawmill Branch Trail and enter a southern part of Summerville. Just north of the intersection with the northern terminus of Jimbo Road, they leave the city limits. They intersect the western terminus of Mikel Drive and the eastern terminus of Edisto Drive, which leads to Flowertown Elementary and Newington Elementary schools. A short distance later, they re-enter Summerville. Almost immediately, they intersect the northern terminus of Trolley Road. Here, US 17 Alt. Trk. and SC 165, as well as the Bacons Bridge Road name, turn left. They proceed to the north-northwest. They cross over Sawmill Branch just before intersecting the southern terminus of both East Carolina Avenue and Berlin G. Myers Parkway. US 17 Alt. Trk. and SC 165 turns right onto the parkway and travel to the northeast. They pass Summerville Elementary School and Rollings Middle School of the Arts. They cross over East Richardson Avenue and some railroad tracks of Norfolk Southern Railway on an unnamed bridge before intersecting East 3rd North Street at the Senator Randy Scott Intersection. This road leads to the Summerville Visitors Center. Almost immediately is an intersection with US 78 (East 5th North Street). US 17 Alt. Trk. and SC 165 continue to the northeast and enter the southwestern part of Berkeley County, before curving to the north-northwest. They intersect US 17 Alt. (North Main Street). Here, both US 17 Alt. Trk. and SC 165 reach their northern terminus, and the roadway continues as Berkeley County Circle to the north-northwest.[22]


CountyLocationmi[19][20][21]kmDestinationsNotes
Dorchester​0.0000.000

 US 17 Alt. / SC 642 begins – Walterboro, Bamberg, Summerville		Southern end of SC 642 concurrency; southern terminus of US 17 Alt. Trk.; western terminus of SC 642
Limehouse Crossroads2.8324.558

 SC 165 south (Bacons Bridge Road) / SC 642 east (Dorchester Road) – Charleston, Charleston A.F.B.		Northern end of SC 642 concurrency; southern end of SC 165 concurrency
Summerville5.5128.871

 East Carolina Avenue north to US 17 Alt.		Southern terminus of East Carolina Avenue
7.39211.896 US 78 (East 5th North Street) – St. George, Charleston
Berkeley8.24213.264


 US 17 Alt. (North Main Street) / SC 165 ends to I-26 / Berkeley Circle north – Walterboro, Moncks Corner		Northern end of SC 165 concurrency; northern terminus of US 17 Alt. Trk./SC 165; southern terminus of Berkeley Circle
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

See also

References

  1. ^ a b "Highway Logmile Report". South Carolina Department of Transportation. Retrieved December 21, 2020.
  2. ^ a b "Highway Logmile Report". South Carolina Department of Transportation. Retrieved December 21, 2020.
  3. ^ a b "Highway Logmile Report". South Carolina Department of Transportation. Retrieved December 21, 2020.
  4. ^ a b "Highway Logmile Report". South Carolina Department of Transportation. Retrieved December 21, 2020.
  5. ^ a b "Highway Logmile Report". South Carolina Department of Transportation. Retrieved December 21, 2020.
  6. ^ a b "Highway Logmile Report". South Carolina Department of Transportation. Retrieved December 21, 2020.
  7. ^ a b "Highway Logmile Report". South Carolina Department of Transportation. Retrieved December 21, 2020.
  8. ^ "Overview map of US 17 Alt. (South Carolina)" (Map). Google Maps. Retrieved November 1, 2013.
  9. ^ General Highway Map, Beaufort County, South Carolina (PDF) (Map). Cartography by SCDOT. South Carolina Department of Transportation. 1943. Retrieved November 16, 2013.
  10. ^ General Highway Map, Beaufort County, South Carolina (PDF) (Map). Cartography by SCDOT. South Carolina Department of Transportation. 1951. Retrieved November 16, 2013.
  11. ^ General Highway Map, Hampton County, South Carolina (PDF) (Map). Cartography by SCDOT. South Carolina Department of Transportation. 1940. Retrieved November 16, 2013.
  12. ^ General Highway Map, Hampton County, South Carolina (PDF) (Map). Cartography by SCDOT. South Carolina Department of Transportation. 1951. Retrieved November 16, 2013.
  13. ^ General Highway Map, Colleton County, South Carolina (PDF) (Map). Cartography by SCDOT. South Carolina Department of Transportation. 1943. Retrieved November 16, 2013.
  14. ^ General Highway Map, Colleton County, South Carolina (PDF) (Map). Cartography by SCDOT. South Carolina Department of Transportation. 1953. Retrieved November 16, 2013.
  15. ^ General Highway Map, Berkeley County, South Carolina (PDF) (Map). Cartography by SCDOT. South Carolina Department of Transportation. 1940. Retrieved November 16, 2013.
  16. ^ General Highway Map, Berkeley County, South Carolina (PDF) (Map). Cartography by SCDOT. South Carolina Department of Transportation. 1952. Retrieved November 16, 2013.
  17. ^ General Highway Map, Georgetown County, South Carolina (PDF) (Map). Cartography by SCDOT. South Carolina Department of Transportation. 1943. Retrieved November 16, 2013.
  18. ^ General Highway Map, Georgetown County, South Carolina (PDF) (Map). Cartography by SCDOT. South Carolina Department of Transportation. 1953. Retrieved November 16, 2013.
  19. ^ a b "Highway Logmile Report". South Carolina Department of Transportation. Retrieved December 6, 2020.
  20. ^ a b "Highway Logmile Report". South Carolina Department of Transportation. Retrieved December 6, 2020.
  21. ^ a b "Highway Logmile Report". South Carolina Department of Transportation. Retrieved December 6, 2020.
  22. ^ "Overview map of US 17 Alt. Trk. (Summerville, SC)" (Map). Google Maps. Retrieved January 4, 2018.
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