 The entire highway was christened the "Battle Ground Highway" in May 2009 to signify the importance of SR 502 connecting the city of Battle Ground to I-5.WSDOT began preparing to install a median barrier and widen SR 502 to four lanes between the I-5 interchange and the western Battle Ground city limit in July 2012 to accommodate increasing traffic on the highway, which has a speed limit up to .Construction for the $85 million project began in earnest in 2014.