North
05/29/07
U.S. 17 (Speedway Boulevard) parallels Shubra Canal along a causeway northeast from the Little Back River.
09/16/21
Construction started in 2020 widens U.S. 17 (Speedway Boulevard) 4.10 miles north from the Georgia state line to S.C. 315 (Okatie Highway). Previously anticipated for completion on November 20, 2025, the $44 million project to 2026 (Blackstone, 2024) includes an additional span across the Savannah River.
09/16/21
Providing a cutoff to S.C. 46 and U.S. 278 east to Bluffton and Hilton Head Island, S.C. 315 (Okatie Highway) loops 5.96 miles east from U.S. 17 (Speedway Boulevard) to S.C. 170 (Freedom Parkway).
09/16/21
Expansion work along U.S. 17 rebuilds the intersection with S.C. 315 north and adds traffic lights.
09/16/21
U.S. 17 (Speedway Boulevard) continues with two lanes from S.C. 315 (Okatie Highway) north 2.51 miles to S.C. 170 on Alligator Alley.
09/16/21
09/16/21
09/16/21
North
S.C. 170 east combines with U.S. 17 north for 1.50 miles.
09/16/21
S.C. 170 parts ways with U.S 17 (Speedway Boulevard) north and continues 3.93 miles east to S.C. 315 (Okatie Highway).
09/16/21
S.C. 170 overlaps with S.C. 46 into Beaufort County en route to U.S. 21 Business in Beaufort.
09/16/21
S.C. 46 runs 9.10 miles east from S.C. 170 into the town of Bluffton to U.S. 278 west of Hilton Head Island.
09/16/21
North
09/16/21
09/16/21
09/16/21
U.S. 17 (Whyte Hardee Boulevard) north meets Interstate 95 at a parclo B2 interchange (Exit 5).
07/10/24
09/16/21
12/30/20
12/30/20
The confirming marker for U.S. 17 and trailblazer for U.S. 321 posted just north of the exchange with I-95 was removed after 2012.
03/15/10
The town of Estill lies 36 miles north from U.S. 17 in Hardeeville along U.S. 321 at S.C. 3.
01/05/19
U.S. 321 (Deerfield Road) commences north from a wye intersection with U.S. 17 (Whyte Hardee Boulevard).
09/22/14
The advance shield for U.S. 321 was removed from U.S. 17 northbound by 2019.
01/05/19
01/05/19
01/05/19
Continuing just 0.31 miles from U.S. 321, U.S. 17 (Whyte Hardee Boulevard) meets S.C. 46 (Main Street). S.C. 46 west ties into U.S. 321 in 0.36 miles.
11/10/06
S.C. 46 measures 17.33 miles overall from Hardeeville east to U.S. 278 at Bluffton.
11/10/06
S.C. 48 provides an alternate route to U.S. 278 east from Hardeeville toward Hilton Head Island.
11/10/06
11/10/06
Another I-95 trailblazer stands along U.S. 17 north at John Smith Road (Road 141).
11/10/06
Forthcoming U.S. 278 originates on Hilton Head Island, 26.69 miles to the east.
11/10/06
North 
West
U.S. 278 combines with U.S. 17 (Whyte Hardee Boulevard / Jacob Smart Boulevard) 12.80 miles north from Independence Boulevard.
03/10/22
03/10/22
03/10/22
03/10/22
03/10/22
03/10/22
03/10/22
03/10/22
03/10/22
03/10/22
SR 13 links U.S. 17/278 (Jacob Smart Boulevard) with parallel Interstate 95 at an adjacent trumpet interchange preceding these confirming markers.
03/10/22
Mango Drive (Road 101) stems 0.30 miles east from U.S. 17/278 to Mitchellville Road (Road 102).
03/10/22
A distance sign posted at Smiths Crossing (Road 29) references the destinations along U.S. 278 east, via its former alignment along S.C. 336 east and S.C. 462 south.
03/10/22
A 13.59 mile long route west to U.S. 321 and east to S.C. 462, S.C. 336 is unmarked along U.S. 17/278 north at Main Street in Downtown Ridgeland.
03/10/22
Traffic lights at Jacob Smart Boulevard and Wilson Street were removed and new ones added at the separation of U.S. 278 west from U.S. 17 north at 3rd Avenue by 2016.
08/14/21
U.S. 278 continues north from U.S. 17 and Ridgeland to Vaneill and Hampton in Hampton County.
03/10/22
North
08/14/21
U.S. 17 (Jacob Smart Boulevard) expands to a four lane, divided highway north ahead of Green Street and Interstate 95.
08/14/21
09/16/21
U.S. 17 overlaps with Interstate 95 north 10.17 miles to Pocotaligo.
08/14/21
Sources:
- Blackstone, L. (2024, September 17) Road Work Delays: $44M widening project at South Carolina-Georgia state line gets completion date. WJCL. https://www.wjcl.com/article/south-carolina-georgia-speedway-boulevard-widening/62239737
Photo Credits:
- 11/10/06 by AARoads and Justin Cozart.
- 05/29/07 by AARoads.
- 03/15/10 by AARoads.
- 09/22/14 by AARoads.
- 01/05/19 by AARoads.
- 12/30/20 by AARoads.
- 08/14/21 by AARoads.
- 09/16/21 by AARoads.
- 03/10/22 by AARoads.
- 07/10/24 by AARoads.
Connect with:
Interstate 95
U.S. 278
Highway 46
Highway 170
Highway 336
Highway 462
Page Updated 12-19-2024.