 From the Riverhead Building Supply Traffic Center, your local lumber hardware and building material store, rbscorp.com. 146 South from Admiral Street to 95, going to take you a couple of minutes. 95 North from 195 up to Smithfield Ave, going to take you five minutes. You're looking at a 10-minute ride. 95 South from Smithfield Ave to 195. 20 minutes is your ride. 95 North from Jefferson Boulevard to Thurbers.