Original-article audit
What this source can support
Reviewed 15 August 2026 · geometry completeness 42/100 · Low
The Command Rock morphology and shared-facility identity are correct, but the SEK 498.8m base rests on assumed 2,500 m² / 26,910 ft², 16,750 m³ and two portals. Five levels are a layout fact, not an area measure. The result is Archetype Derived and should not be rankable. Dual power, shafts, EMP and CBRN are compressed into area-based packages.
Supported useThe article supports a 1955-56 shared rock command facility for HC Uttern and LGC Spoven, with five levels including a lower service culvert and separate upper transmitter annex. It describes a main arched cavern/inner structure, entrance locks, blast valves and decontamination showers, dual generators with approximately three weeks of fuel, a separate EMP hut for half the communications, living/support floors and vertical emergency egress. A contractor offer of SEK 1.278m and 16-month delivery is reported. No area, excavation, tunnel length or concrete quantity is given.
Geometry evidencepublished: five levels including culvert and transmitter annex; separate smaller upper cavern/ship; arched main roof; vertical emergency route through multiple locks; multiple ventilation/exhaust shafts | not_published: floor areas by level; cavern dimensions and volume; entrance length/section; inner concrete/rebar; portal/shaft sizes
Historic-cost evidenceSEK 1.278m contractor offer dated 12 September 1955 with 16-month delivery; this is a bid/offer, not a verified final account
Systems describeddual standby generators; approximately three weeks of fuel; ventilation and blast valves; decontamination showers and locks; EMP hut for half communications; transmitter annex/mast; kitchen, accommodation and shared-agency rooms
Primary cost driversmain and upper cavern volumes; multi-level inner structure; vertical shafts/egress; dual power and fuel; CBRN/EMP systems; communications and support fit-out
Unit / programme scopeOne shared physical facility; HC and LGC functions are co-located rather than two additive bunkers.
Revision directionPublish a broad non-rankable band only; derive main cavern, annex, shafts and inner floors from archived plans; split dual generation/fuel, CBRN, EMP, communications and vertical egress; retain one shared-facility cost subject; label SEK 1.278m as bid/offer and seek final account
Missing inputsas-built plans/sections; floor area by level; excavation and support quantities; shaft/portal geometry; generator and fuel capacities; CBRN/EMP/comms schedule; final historic account
Site / data issuesfive levels are converted into proxy floor area without evidence; precise base value overstates confidence; co-located functions need non-additive relationship flags; systems should be component-budgeted
