 There had been Japanese lighthouses before then, but they were short and squat buildings, such as the old Shirasu lighthouse now in the grounds of Kokura Castle in Kitakyushu.Brunton also established a system of lighthouse keepers, modeled on the Northern Lighthouse Board in Scotland.Aside from his work on lighthouses around Japan, Brunton also surveyed and drew the first detailed maps of Yokohama, planned its sewage system, street paving and gas lights, established a telegraph system, and designed and built the settlement's first iron bridge.