WILMINGTON, NC (WWAY) — Drivers across Wilmington and surrounding areas should prepare for road closures, lane restrictions and traffic pattern changes as more than 3,500 athletes are expected to compete in the Ironman 70.3 North Carolina Triathlon on Saturday, Oct. 17. According to the City of Wilmington, the race will impact traffic throughout Wrightsville Beach, Eastwood Road, Market Street, Martin Luther King Jr. Parkway, U.S. 421, Greenfiel…