State Road 510 (SR 510) is a 2.6 miles (4.2 km) state highway in northern Indian River County, extending from US 1 in Wabasso to State Road A1A in Orchid. The route acts primarily as a bridge across the Indian River, known as the Wabasso Causeway, the northernmost crossing of the Intracoastal Waterway in Indian River County. The entire highway is on the Indian River Lagoon Scenic Highway.