 The fort was linked to a jetty, Coalhouse Wharf, on the riverside a short distance to the south.A standard gauge railway track led from the fort's interior to the jetty and was used to bring guns and supplies from the wharf.The heaviest guns were transported to and from Coalhouse Fort (and other Thames forts) aboard two specialised gun barges called "Gog" and "Magog", built in 1886 and 1900 respectively and used until the 1960s.