Its walls were revetted in white marble. The floor is revetted with grey granite. The rampart is revetted with drystone walling. Its walls are thoroughly revetted with sharpened stones from inside and outside. Originally the inner faces of the emplacement were revetted with masonry. Here the banks were revetted with timber and a wharf was possibly constructed. It is a small military base with a long tarmac with several revetted areas. The brick pedestal and stylobate are revetted with cast iron plates. The bank was typically timber faced and timber revetted. The ends of the bank at this point were revetted with coursed puddingstone blocks. When possible, DFPs are revetted with corrugated iron, star pickets and wire or local substitutes. The floor is revetted with black marble, although the platforms were initially covered with asphalt. The ditch is now revetted and the fence does not have an uphill landing. The interior is entirely revetted with the same veined white marble used on the exterior. Petrol cans were stacked along the sides of existing revetted trenches, hidden in the shadows.