Northbound on US 17 just past the Jekyll Causeway over the Lanier Ship Channel Bridge. Speed Limit is 50 and traffic, much of it just off Interstate 95 has a broad, wide open stretch of 4 lane road. Get to the top of the bridge and there is a tendency to maintain highway speed or increase speed going down the bridge (the only "hill" within many miles). Welcome to the Golden Isles as the Brunswick Police Department and the GHP frequently sit at the base of the bridge or just up the road behind bushes with radar. Not sure of the grace speed but they are often very busy. Make sure your insurance and registration cards are handy too.