eastbound I-526. I-526 crosses the Cooper River on the high-level Don N. Holt Bridge and enters the Daniel Island section of the city of Charleston in Berkeley County. The freeway has partial cloverleaf interchanges on either side of Beresford Creek with Clements Ferry Road and Seven Farms Drive/River Landing Drive. Both interchanges lead to Blackbaud Stadium, home of the Charleston Battery, and the Family Circle Tennis Center, home of the Family Circle Cup. I-526 continues southeast across the Wando River on the James B. Edwards Bridge back into Charleston County and the town of Mount Pleasant. The freeway has a partial cloverleaf interchange with Long Point Road and curves south at Hobcaw Creek. I-526 has a partial flyover interchange to and from US 17 in the direction of Georgetown before the Interstate reaches its eastern terminus at a partial cloverleaf interchange with US 17 (Johnnie Dodds Boulevard). The highway continues as I-526 Bus., a four-lane highway that follows Chuck Dawley Boulevard to SC 703 in the center of Mount Pleasant. All of I-526 is included as part of the National Highway System, a system of roadways important to the nation's economy, defense, and mobility. History Planning of the freeway dates back to the 1960s; construction on the first section began in 1979. Opened in 1982 as an unnumbered freeway, it traversed from Ashley River Road (SC 61) to Leeds Avenue, crossing over the Ashley River. In 1985, the freeway became SC 31, connecting US 17/SC 7 to Dorchester Road (SC 642). By 1987, it extended to International Boulevard, providing access to the Charleston International Airport. In 1989, the freeway was rechristened as I-526 after it connected with I-26 (exit 212). In 1992, I-526 was extended east over the Cooper River to Daniel Island, then over the Wando River to Mount Pleasant and its current eastern terminus with US 17 and I-526 Bus. In 1993, the Robert B. Scarborough Bridge was opened, connecting downtown Charleston with James Island; it is signed as SC 30. Since 1993, several residents and groups in the area have fought against the completion of I-526, which will connect both James Island and Johns Island. Approximately separate the eastern terminus of I-526's current extent from the eastern terminus of SC 30. The mileage markers and exit numbers on both SC 30 and I-526 are based on an eventual merging of the routes, with miles 1 to 3