Iowa 80 is the world's largest truck stop, located along Interstate 80 off exit 284 in Walcott, Iowa. Set on a 220-acre (89 ha) plot of land (four times larger than an average truckstop)—75 acres (30 ha) of which are currently developed—the site receives 5,000 visitors daily, and features a 67,000 sq ft (6,200 m²) main building, parking for 900 trucks, and 15 fuel pumps, with each fuel pump also having another dedicated pump for dispensing bulk diesel exhaust fluid..