The article establishes an 1899–1907 rock fort for roughly 300 personnel, long internal galleries and support rooms, blasted storm ditches, eight stated principal gun positions, electric light, water closets and telephone service. It also describes the separate Götiska battery and wider Älvsborg system. It supplies no floor area, gallery length, cross-sections, rock volume, concrete quantities, portal count, or historical construction cost.

published: eight-year construction period; approximately 300 personnel; two 24 cm, two 15.2 cm and four 57 mm principal positions; rock galleries and blasted storm ditches; separate nearby Götiska battery | not_published: floor area; tunnel and gallery lengths; cross-sections and heights; rock volume; concrete and armour quantities; entrances and shafts

electric lighting; water closets; telephone; barracks, mess and stores; armoured turrets and self-lowering gun mounts as historical mission equipment

gallery and ditch excavation; rock support; emplacement and armour civil works; portals and vertical interfaces; support-space utilities

One fort; Götiska battery and the wider Älvsborg defence system are related but separable assets.

Move the dossier out of the rankable facility table until measured geometry exists; show an explicit scope tree for fort versus Götiska component; derive galleries, ditches and each emplacement from plans or scan; separate civil emplacements from restored guns and armour; use a heritage-replica case separately from a modern protected-fort case

survey plan and longitudinal sections; gallery cross-sections; ditch and emplacement volumes; portal and shaft schedule; rock-support condition/class; civil-versus-weapons scope statement

assumption-dominated total is displayed alongside measured facilities; possible parent-component overlap; unexplained eight-position-to-four-package conversion; historic heritage reconstruction is not equivalent to a current defensive installation