occurring on SC 30 and miles 10 to 30 used on the current I-526 route. Future The proposed missing section of I-526 was the subject of an environmental study that was completed in early 2014. Various alternative routings and options are being reviewed, but the general plan is to extend south from US 17 to Johns Island and then east to James Island, where it will connect with SC 30 (possibly renumbering it). Some alternatives shown include the possibility that it will be built in expressway grade instead, falling short of being labeled an Interstate Highway. Citing Charleston County's inability to provide funds to cover the project's increased cost, the State Transportation Infrastructure Bank (SIB) board voted on May 26, 2016, to abandon the proposed extension of I-526 across James and Johns Islands. In 2021, SCDOT revived the 526 extension project, aiming to start construction by 2024. Exit list Interstate 526 Business Interstate 526 Business (I-526 Bus.) is a four-lane boulevard-grade business spur of I-526 along Chuck Dawley Boulevard between Johnnie Dodds Boulevard (US 17) and Ben Sawyer Boulevard (SC 703). The route was originally part of U.S. Route 17 Business (US 17 Bus.)/US 701 Bus.; signed east–west, it has not changed since inception. I-526 Bus. is not part of the National Highway System. See also References External links Mapmikey's South Carolina Highways Page: I-526 26-5 26-5 526 526 Interstate 26-5 Interstate 26-5 Transportation in Charleston County, South Carolina Transportation in Berkeley County, South Carolina