Floor Area · reported
Assembling intelligence…
Reading listings, research log, and source-health evidence.
BunkerStrategyIntelligence terminalBunkerStrategyIntelligence terminalReading listings, research log, and source-health evidence.
Small 90 m² / 969 ft² one-level buried concrete district command post built from December 1982 to April 1983 in an unnamed southern municipality.
Floor Area · reported
Published date and precision preserved
Published date and precision preserved
Unit-attributed from its source article
Functional recreation of the documented facility in Sweden using current construction methods and 2026 prices, preserving the documented capacity, protection, autonomy and redundancy. Ex VAT; excluding land, financing, remediation, classified mission equipment and data-centre hardware.
Provisional audited central concept screen; expected-risk calibration is pending. It is not yet a risk-adjusted expected cost.
Method, scope and confidence →20 photographs sourced from the original article, with captions where available.
Published, calculated and proxy dimensions are deliberately separated. Missing evidence stays visible instead of becoming zero.
Rock in place removed before bulking; the excavation-pricing quantity.
Internal airspace; not the amount of rock removed.
Blasted material after bulking; the haul and disposal quantity.
These cubic metres are not interchangeable.
Usable, floor or footprint area; the label is preserved because these are not always interchangeable.
Floor Area · reported · Publisher articleRock in place removed before bulking; the quantity used to price excavation.
12% of structural scope as a buried-class screen · Audit revisionInternal air or chamber volume. It is not solid excavation without overbreak, access and support geometry.
No usable quantity in the reviewed source · Evidence gapBlasted material after bulking, or its handled mass. No swollen cubic metres are inferred when only tonnes are modelled.
No rock mass-handling scope applies to the audited morphology. · Audited morphologyLength alone is insufficient; a costable tunnel also needs width, height or cross-sectional area.
No tunnel geometry applies to the audited morphology. · Audited morphologyPublished chamber or arch geometry used to test volume and support assumptions.
No usable quantity in the reviewed source · Evidence gapRock surface requiring bolts, mesh or shotcrete, preferably measured in square metres.
Rock-support surface does not apply to this audited morphology. · Audited morphologyCounts and dimensions of access, transfer, utility and emergency interfaces.
One entrance is implicit; the vertical emergency shaft is treated as a high-case second interface. · Reviewed base modelCast inner structures and linings, kept separate from excavated rock and reinforcement mass.
Reported facility floor/shelter area is used as the screening usable-area basis. Archetype concrete factor is 2 m³ per usable m². · Reviewed base modelGroundwater, inflow, drainage, pumping and moisture-control evidence affecting construction and operation.
No usable quantity in the reviewed source · Evidence gapThe headline answers the current replacement question. Historic cost, CPI and construction-index comparisons remain separate because they answer different questions.
Different specifications receive different estimates; they are not used as the upper and lower limits of one answer.
Preserves documented capacity, protection, autonomy and redundancy using current construction methods.
Requires a modern structural, fire, protection and supplier performance brief.
Requires IT load, cooling topology, grid capacity, redundancy and autonomy. Server hardware is excluded.
No representative facility construction cost selected
General purchasing-power comparison—not a construction quote
Broad BKI proxy—not a bunker-specific rebuild price
Scope lock. Functional recreation of the documented facility in Sweden using current construction methods and 2026 prices, preserving the documented capacity, protection, autonomy and redundancy. Ex VAT; excluding land, financing, remediation, classified mission equipment and data-centre hardware. This anonymous southern-Swedish district command centre is a one-level, 90 m² / 969 ft² buried concrete bunker. Excavation began in mid-December 1982; concrete was cast in the pit, then covered with earth and stone, and the facility was ready in April 1983. I…
Audit revision sweden-replacement-audit-2026.08.15. The central WBS below incorporates the 61-article review. The former deterministic low/base/high cases remain available only as sensitivities and revision history.
Direct works + owner / design / investigation + legacy concept contingency
Central quantities × current installed-rate screen.
Not yet probability-weighted. The current legacy concept contingency remains separate.
22% applied to the direct-work screen.
Raw model SEK 37.8m · rounded for Confidence D.
Transitional limitation. SEK 6,432,775 is still a blanket concept contingency, not probability-weighted expected risk. This is why the amount is labelled provisional. The audited command buried WBS remains the central scope ledger.
No subject caveat recorded.
70/100 article-geometry completeness. Detailed source extraction is available in the original-article audit.
Confidence D · geometry completeness 70/100
Largest active lines in the audited central component schedule.
The workbook publishes one revised central schedule. Its prior low and high stress cases are retained only under sensitivities; no line-level probability distributions are implied.
Excavation, temporary works, waterproofing and backfill · SEK 151,200
Drainage, sumps and moisture control · SEK 50,400
Integrated testing, commissioning and public-safe documentation · SEK 652,500
| Change | Scope | Audited base | Quantity / rate basis | Provenance |
|---|---|---|---|---|
| Retained | 03High-mass reinforced-concrete shellStructural | SEK 1,260,000 | 180 m³ × SEK 7,000 / m³Derived From Published quantity · Assumption rateReported facility floor/shelter area is used as the screening usable-area basis. Archetype concrete factor is 2 m³ per usable m². | Existing archive WBS |
| Retained | 04Installed reinforcementStructural | SEK 567,000 | 16,200 Kg × SEK 35 / KgDerived From Published quantity · Assumption rateReported facility floor/shelter area is used as the screening usable-area basis. Archetype concrete factor is 2 m³ per usable m². Archetype reinforcement intensity is 90 kg per concrete m³. | Existing archive WBS |
| Retained | 05Interior construction and conventional MEPBuilding Services | SEK 4,050,000 | 90 m² / 969 ft² × SEK 45,000 / Usable m²Derived From Published quantity · Assumption rateReported facility floor/shelter area is used as the screening usable-area basis. Fit-out factor is 1 times the reference scale. | Existing archive WBS |
| Retained | 06Protection, resilience and standby systemsProtection | SEK 9,000,000 | 0.5 Project × SEK 18,000,000 / ProjectAssumption quantity · Assumption rateOne protection package per 900 usable m² / 9,688 ft², subject to a 0.5-package minimum. | Existing archive WBS |
| Retained | 07Buried access, escape and utility interfacesSite And Access | SEK 6,000,000 | 1 Project × SEK 6,000,000 / ProjectClass Proxy quantity · Assumption rateOne entrance is implicit; the vertical emergency shaft is treated as a high-case second interface. | Existing archive WBS |
| Added | R279Excavation, temporary works, waterproofing and backfill | SEK 151,200 | 12% of structural scope as a buried-class screen | Class assumption — earthworks take-off required |
| Added | R280Drainage, sumps and moisture control | SEK 50,400 | 4% of structural scope as a buried-class screen | Class assumption — site investigation/RFQ required |
| Added | R281Integrated testing, commissioning and public-safe documentation | SEK 652,500 | 5% of MEP/protection/mission-system scope | Class assumption — commissioning plan required |
| Added | R282Documented access / escape interface correction | SEK 4,000,000 | Source-specific screening allowance; replace with measured tunnel/shaft/portal take-off | Derived from original-article geometry |
Active base WBS SEK 25,731,100 · owner/design and contingency are added in the scenario cards above · 12 removed rows across the archive remain visible as change history.
The three inputs most likely to move the current screen.
These deterministic stress cases simultaneously vary quantities, rates, scope allowances and contingency. They are not confidence intervals and no longer serve as the headline answer.
Links support a rate, scope boundary or method. Context-only sources are not represented as quotations.
Public ready-mix material check only; installed underground rates require RFQ.
Public retail material check only; cutting, bending, fixing, waste and underground logistics require RFQ.
Ordinary critical-facility sanity check, not protected-bunker equivalence.
Public sources establish specialized tested products but not project prices.
Small protected municipal command post.
Municipality decided to build the protected command post.
B005Excavation began in mid-December.
B006Exercises were held; the last large exercise reported was in 1998.
B007Facility was ready for use.
B006Publisher reported continued municipal ownership.
B007Publisher-reported features, not a current engineering inspection or certification.
Two dormitories, toilet, small pantry and operations room.
B006Bolted hatch from the operations room to a vertical escape shaft.
B006Cast concrete bunker covered with earth and stone; article assigns type F but calls the standard scale A-E, an internal inconsistency.
B005 · B00612 reviewed claims. Evidence locators resolve against the stored article hash or archived snapshot.
| Subject | Claim | Value | Date | Evidence | Certainty |
|---|---|---|---|---|---|
| milestone | Event | Municipality decided to build the protected command post. | 1982 | B005 | Reported |
| milestone | Event | Excavation began in mid-December. | 1982-12 | B006 | Reported |
| milestone | Event | Facility was ready for use. | 1983-04 | B006 | Reported |
| lifecycle summary | Event | Exercises were held; the last large exercise reported was in 1998. | 1983–1998 | B007 | Reported |
| lifecycle summary | Event | Publisher reported continued municipal ownership. | article date | B007 | Reported |
| quantitative observation | Floor Area | 90 m² / 969 ft² | — | B006 | Reported |
| quantitative observation | Floors | 1 floors | — | B006 | Reported |
| quantitative observation | Dormitories | 2 rooms | — | B006 | Reported |
| quantitative observation | Last Large Exercise | 1,998 year | — | B007 | Reported |
| technical system | Habitability | Two dormitories, toilet, small pantry and operations room. | — | B006 | Reported |
| technical system | Emergency Exit | Bolted hatch from the operations room to a vertical escape shaft. | — | B006 | Reported |
| protection | Earth-Covered Concrete Shell | Cast concrete bunker covered with earth and stone; article assigns type F but calls the standard scale A-E, an internal inconsistency. | — | B005,B006 | Reported |