U.S. Route 17 in South Carolina
Major highways in South Carolina with US 17 in red
|Maintained by SCDOT|
|Length||221.3 mi  (356.1 km)|
|South end||US 17 at Georgia line near Savannah, GA|
|North end||US 17 at North Carolina line near Calabash, NC|
|Counties||Jasper, Beaufort, Colleton, Charleston, Georgetown, Horry|
In the U.S. state of South Carolina, U.S. Route 17 (US 17) is a north–south highway located near the Atlantic Ocean. The route enters the state from Georgia at the Savannah River and serves Hardeeville, Charleston, Georgetown and Myrtle Beach before entering North Carolina near Calabash.
US 17 enters into South Carolina in Jasper County as a two-lane road and within eight miles (13 km) enters Hardeeville, where it becomes a major four-lane freeway configuration. US 17 intersects Interstate 95 at exit 5 in Hardeeville and after the intersection with US 321, runs parallel to Interstate 95 until Ridgeland, where it merges with the interstate at exit 22 until Point South. At Point South, US 17 leaves I-95 at exit 33 and heads eastward into northern Beaufort County, sharing a concurrency with US 21 until Gardens Corner. US 21 splits off to Beaufort while US 17 heads northeast into the ACE Basin and Colleton County.
The stretch of US 17 between Gardens Corner and Jacksonboro was a scenic yet rural two-lane road configuration that has proven to be a very dangerous and deadly stretch for motorists. SCDOT is working on improving portions of the roadway, including widening some portions and reducing the speed limits. Since, this road has been upgraded to a four-lane divided highway. Once in Jacksonboro, the road enters into Charleston County crossing over the Edisto River and regaining a four-lane configuration for the remainder of the state. The road passes through several rural communities as it approaches Charleston from the west. Just before the interchange with Interstate 526, major commercial development starts and continues into the West Ashley neighborhood of Charleston. The 3.6-mile (5.8 km) section running from Sam Rittenberg Boulevard to SC 171 has been named the "Charleston Nine Memorial Highway", in honor of nine Charleston firefighters killed in the line of duty in the Charleston Sofa Super Store fire on June 18, 2007.  The route then approaches the Ashley River.
In Charleston, US 17 traverses the Ashley River Drawbridges and comes onto the Charleston Peninsula, being routed north of the historical areas of the city. The first portion is at-grade and has a few traffic-signals for flow purposes. This section of the route is named the " Septima P. Clark Parkway".   Upon reaching the Interstate 26 terminus, US 17 becomes controlled-access and above grade as it approaches the Cooper River via the Arthur Ravenel Jr. Bridge and the stretch of US 17 in Charleston is infamous among locals for its traffic congestion, especially on weekday mornings.
Upon crossing the river, the highway enters Mount Pleasant at grade and is signalized for several miles up through the second interchange with Interstate 526 and connecting roads to the Isle of Palms and Sullivan's Island. The road leaves the Charleston metro area by entering the Francis Marion National Forest and going through the rural communities of Awendaw and McClellanville on its northeastern journey to Georgetown. US 17 crosses the marsh-lined Santee River as it enters Georgetown County. After going around the city of Georgetown, US 17 crosses eastward over the Waccamaw / Pee Dee river system before making a northward turn along the Grand Strand.
The last component of US 17 runs close to the Atlantic, beginning at the Hobcaw Barony and DeBordieu, passing by Pawleys Island and going past the Litchfield beaches and Murrells Inlet. It then enters into Horry County and passing Garden City, Surfside Beach, and arriving in Myrtle Beach. US 17 splits here between a business route and the standard route, which remains west of the beach and tourist areas served by Business 17. The roads rejoin north of the city and continue as US 17 through Atlantic Beach, North Myrtle Beach, and Little River where the South Carolina Welcome Center can be found across from the intersection with SC 179 before crossing into North Carolina. The portions from Murrells Inlet to the state line are quite congested at times, though the soon to be constructed Interstate 73 should assist in alleviating many traffic issues.
The route was part of the 1926 approved plan for a national system of highways, and appears on the approved map. When first signed, US 17 followed a route that went through Florence and Marion.  The original route through South Carolina was 288 miles (463 km) long.
At this time, U.S. routes in South Carolina used a dual-numbering system; US 17 was also signed SC 1 from Georgia to Yemasse, SC 30 from Yemassee to Walterboro, SC 6 from Walterboro to Charleston, SC 2 from Charleston to Goose Creek, SC 41 from Goose Creek to Florence, SC 3 from Florence to North Carolina.   By 1928, all of the dual numbers had been removed except for SC 2.  The entire route from Georgia to North Carolina was paved by 1930.  At one point the route from Green Pond to Jacksonboro was SC 32.
The first tourist welcome center in South Carolina opened in February 1968 on US 17 near Little River. 
A segment of US 17 between Ridgeland and Point South once contained two four-lane divided sections The first is in Coosawhatchie between north of the culvert for Little Bees Creek and north of the bridge over the Coosawhatchie River. The second is in the vicinity of some 1941-built bridges over the Tullifinny River and its tributary the Harbor River.   From 1971 to 1975, portions of that segment were relocated onto Interstate 95. The divided section in Coosawhatchie remains intact, while the northbound lane near the Tullifinny wetlands was closed, and today is used for a fishing pier, a parking lot of a church, and a private home.
|Jasper||||0.0||0.0||US 17 south – Savannah||Continuation from Georgia|
|||4.3||6.9||SC 315 north (S Okatie Highway) – Bluffton, Hilton Head Island, Beaufort||Southern terminus of SC 315|
|||6.7||10.8||SC 170 west (Alligator Alley) – Port Wentworth||West end of SC 170 overlap|
|Limehouse||8.2||13.2||SC 170 east (Freedom Parkway) – Hilton Head Island, Beaufort||East end of SC 170 overlap|
|Hardeeville||13.1||21.1||I-95 – Florence, Jacksonville||I-95 exit 5|
|13.7||22.0||US 321 north (Deerfield Road) – Augusta||To Jasper Power Plant; southern terminus of US 321|
|14.1||22.7||SC 46 (Main Street) – Tillman, Hilton Head Island|
|16.1||25.9||US 278 east to I-95 – Beaufort, Hilton Head Island||East end of US 278 overlap|
|Ridgeland||26.4||42.5||To I-95 – Florence, Savannah||I-95 exit 18|
|28.7||46.2||SC 336 (Main Street) – Tillman|
|28.8||46.3||US 278 west – Hampton||West end of US 278 overlap|
|30.7||49.4||I-95 south – Savannah||South end of I-95 overlap; exit 22|
|||36.2||58.3||SC 462 – Coosawhatchie||I-95 exit 28|
|Point South||40.7||65.5||I-95 north – Florence||North end of I-95 overlap; exit 33|
US 21 north (Castle Hall Road) / US 17 Alt. north – Yemassee, Walterboro
|South end of US 21 overlap; Southern terminus of US 17 Alt|
|Gardens Corner||49.1||79.0||US 21 south (Trask Parkway) – Beaufort||North end of US 21 overlap|
|Colleton||Green Pond||61.1||98.3||SC 303 north (Green Pond Highway) – Walterboro||Southern terminus of SC 303|
|Jacksonboro||71.2||114.6||SC 64 west (Charleston Highway) – Walterboro||Eastern terminus of SC 64|
|Charleston||Osborn||78.2||125.9||SC 174 south – Edisto Beach||Northern terminus of SC 174|
|Ravenel||84.1||135.3||SC 165 – Younges Island, Summerville|
|90.0||144.8||SC 162 west – Hollywood, Edisto Beach||Eastern terminus of SC 162|
|Charleston||97.3||156.6||SC 7 north (Sam Rittenburg Boulevard)||Southern terminus of SC 7|
|97.4||156.8||I-526 east – North Charleston, Charleston International Airport||Western terminus of I-526|
|101.0||162.5||SC 171 (Wesley Drive) – James Island, Folly Beach|
|101.4||163.2||SC 61 west (St. Andrews Boulevard) / SC 700 west (Folly Road Boulevard) – Summerville, Folly Beach|
|101.6||163.5||Ashley River Memorial Bridge across the Ashley River|
|102.6||165.1||SC 30 west (Lockwood Drive) – James Island, Folly Beach||Eastern terminus of SC 30|
|103.1||165.9||To US 78 (King Street) / Carolina Street / Sheppard Street||Southbound exit only; West end of I-26 overlap; Eastern terminus of I-26|
|103.6||166.7||I-26 west – North Charleston, Columbia||East end of I-26 overlap|
|103.8||167.0||US 52 (Meeting Street)||Southbound exit and northbound entrance|
US 52 Spur (East Bay Street / Morrison Drive)
|Southbound exit and northbound entrance; no US 52 Spur signage at exit|
|Charleston– Mount Pleasant line||105.2||169.3||Arthur Ravenel Jr. Bridge over the Cooper River|
|Mount Pleasant||106.3||171.1||SC 703 (Coleman Boulevard) – Sullivan's Island|
|109.5||176.2||I-526 west / I-526 BS east (Chuck Dawley Boulevard) – North Charleston, Savannah|
|111.5||179.4||SC 517 south (Isle of Palms Connector) – Isle of Palms||Northern terminus of SC 517|
|114.0||183.5||SC 41 north – Huger||Southern terminus of SC 41|
|McClellanville||140.0||225.3||SC 45 north||Southern terminus of SC 45|
US 521 north (Highmarket Street) / US 701 north (Fraser Street) / US 17 Alt. south (Exchange Street) – Andrews, Walterboro, Conway
|Northern terminus of US 17 Alt; Southern termini of US 521/US 701|
|164.7||265.1||L.W. Stau Bridge across the Waccamaw River ( Intracoastal Waterway)|
US 17 Bus. north – Murrells Inlet
|Southern terminus of US 17 Bus|
|185.0||297.7||SC 707 (Burgess Road) to SC 31 – Conway, North Myrtle Beach, Murrells Inlet|
To US 17 Bus. north – Garden City, Surfside Beach
|Northbound exit and southbound entrance|
|Surfside Beach||191.6||308.4||SC 544 (Dick Pond Road) – Surfside Beach, Garden City, Socastee, Conway|
|Myrtle Beach||194.3||312.7||SC 707 south (Socastee Boulevard) / Farrow Parkway – Socastee||Northern terminus of SC 707|
|196.5||316.2||George Bishop Parkway / Harrelson Boulevard – MYR Int'l Airport|
|197.5||317.8||US 501 – Myrtle Beach, Conway||Cloverleaf interchange|
|201.8||324.8||To SC 31 / Grissom Parkway – Downtown Myrtle Beach||No northbound south exit|
US 17 Bus. south (Kings Highway) – Myrtle Beach
|Interchange; northern terminus of US 17 Bus|
|Briarcliffe Acres||207.3||333.6||SC 22 west (Conway Bypass) to SC 31 / US 501 – Conway||Interchange; eastern terminus of SC 22|
|North Myrtle Beach||211.1||339.7||SC 65 north (27th Avenue South) – Crescent Beach||Southern terminus of SC 65|
|213.6||343.8||Robert Edge Parkway north ( SC 31 Conn. north) / Main Street south – Wampee, Downtown North Myrtle Beach||Southern terminus of SC 31 Conn. and Robert Edge Parkway; northern terminus of Main Street|
|215.7||347.1||SC 9 south – Cherry Grove Beach||Interchange; south end of SC 9 overlap|
|216.0||347.6||Bridge across the Intracoastal Waterway|
|Little River||216.5||348.4||SC 90 – Conway||Northbound exit and southbound entrance|
|216.7||348.7||SC 9 north to SC 31 – Loris, Dillon||Interchange; north end of SC 9 overlap|
|217.4||349.9||SC 90 west – Conway||Eastern terminus of SC 90|
|219.4||353.1||Mineola Avenue – Little River, Brooksville||Signed as (East) and (West)|
|220.6||355.0||SC 179 north / Graystone Boulevard – Calabash||Southern terminus of SC 179|
|||221.3||356.1||US 17 north – Shallotte, Wilmington||Continuation into North Carolina|
|1.000 mi = 1.609 km; 1.000 km = 0.621 mi|
- Moore, John Hammond (1987). The South Carolina Highway Department, 1917–1987. Columbia, South Carolina: University of South Carolina Press. ISBN 0-87249-528-0.
- Google (July 10, 2013). "U.S. Route 17 in South Carolina" (Map). Google Maps. Google. Retrieved July 10, 2013.
- U.S. 17 stretch to honor firefighters who died in sofa store blaze Archived 2008-10-17 at the Wayback Machine The Post and Courier, March 25, 2008. Accessed March 27, 2008.
- "The Septima P. Clark Expressway and Park". Lowcountry Digital History Initiative. College of Charleston. Retrieved July 26, 2020.
- "Septima Clark Parkway Now Official". City of Charleston, South Carolina. May 21, 2010. Archived from the original on July 27, 2020. Retrieved July 26, 2020.
- DeLysle, Jack, Map of the Official Atlantic Coastal Highway, 1929. University of South Carolina Map Collections.
- Moore 1987, pp. 74–75.
- Roberson, M. (July 17, 2006). "US 17". Mapmikey's South Carolina Highways Page. Retrieved October 12, 2009.
- Moore 1987, p. 139.
- Moore 1987, p. 244.
- "Uglybridges.com - S-27-424SERVICE over TULLIFINNY RIVER (NO. 1), Jasper County, South Carolina".
- "Uglybridges.com - S-27-424 over TULLIFINNY RIVER (NO. 2), Jasper County, South Carolina".
- Media related to U.S. Route 17 in South Carolina at Wikimedia Commons
- Mapmikey's South Carolina Highways Page: US 17
- SouthEast Roads.com: US 17 & Cooper River Bridges
- SouthEast Roads.com: northbound images
- SouthEast Roads.com: southbound images
|U.S. Route 17|
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