No standardized area published
Assembling intelligence…
Reading listings, research log, and source-health evidence.
BunkerStrategyIntelligence terminalBunkerStrategyIntelligence terminalReading listings, research log, and source-health evidence.
The archive documents Eskilstunabasen / Fält 56 as a buried-concrete Bas 60 type A airbase. Construction is recorded from 1960 to 1962. Its documented role was dispersed wartime fighter operations.
No standardized area published
Published date and precision preserved
Published date and precision preserved
Unit-attributed · 11 more or shared in the original 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.
No usable quantity in the reviewed source · Evidence gapRock in place removed before bulking; the quantity used to price excavation.
The audited morphology is not a rock-excavation class. · Audited morphologyInternal 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.
No usable quantity in the reviewed source · Evidence gapCast inner structures and linings, kept separate from excavated rock and reinforcement mass.
No usable quantity in the reviewed source · Evidence gapGroundwater, 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. Eskilstunabasen was a distributed Bas 60 attack base built 1960–1962 and converted toward Bas 90 from 1987, with a main runway, two built remote short runways, taxi/aircraft roads, alert and service areas, multiple dispersed fuel tanks, shelters, a buried con…
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 1.34bn · rounded for Confidence E.
Transitional limitation. SEK 227,593,750 is still a blanket concept contingency, not probability-weighted expected risk. This is why the amount is labelled provisional. The audited airbase system WBS remains the central scope ledger.
Inclusive site-level replacement scope; site-specific component inventory and runway geometry are incomplete.
54/100 article-geometry completeness. Detailed source extraction is available in the original-article audit.
Confidence E · geometry completeness 54/100
Do not add this blindly to related records. Inclusive parent of se-eskilstunabasen-KC and se-eskilstunabasen-basc; never sum parent and children.
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.
No explicit active base-WBS line.
No explicit active base-WBS line.
Integrated testing, commissioning and public-safe documentation · SEK 10,875,000
| Change | Scope | Audited base | Quantity / rate basis | Provenance |
|---|---|---|---|---|
| Retained | 05Support buildings and workshopsBuilding | SEK 297,000,000 | 9,000 m² / 96,875 ft² × SEK 33,000 / Usable m²Class Proxy quantity · Assumption rateTotal protected/support building-area proxy for a Bas 60/Bas 90 airbase serving roughly 1500-2000 personnel. | Existing archive WBS |
| Retained | 08Runway and dispersal pavementAirfield Civil | SEK 360,000,000 | 90,000 m² / 968,752 ft² × SEK 4,000 / Paved m²Assumption quantity · Assumption rateNo runway dimensions are published for this record; explicit screening pavement scenarios are used. | Existing archive WBS |
| Retained | 09Airbase command and mission systemsMission Systems | SEK 67,500,000 | 4.5 Reference Package × SEK 15,000,000 / Reference PackageAssumption quantity · Assumption rateOne mission package per 2000 usable m² / 21,528 ft², subject to a 1-package minimum. | Existing archive WBS |
| Retained | 10Dispersed fuel and protected supportProcess And Support | SEK 150,000,000 | 1 Airbase × SEK 150,000,000 / AirbaseAssumption quantity · Assumption rateThe estimate subject covers 1 site. | Existing archive WBS |
| Retained | 12External utilities and site integrationSite And Access | SEK 25,000,000 | 1 Site × SEK 25,000,000 / SiteAssumption quantity · Assumption rateThe estimate subject covers 1 site. | Existing archive WBS |
| Added | R346Integrated testing, commissioning and public-safe documentation | SEK 10,875,000 | 5% of MEP/protection/mission-system scope | Class assumption — commissioning plan required |
Active base WBS SEK 910,375,000 · 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 material establishes specialized systems but no prices. Package values are assumptions and must not be read as classified equivalence.
Dispersed wartime fighter operations.
Construction of the Type A airbase began.
B005Airbase reported complete.
B007Bas 60 operational phase.
B007,B009Troop use began.
B007Bas 90 adaptation began; a proposed runway C was not built.
B009Bas 90 adaptation and later operational phase.
B009,B021Exercise reportedly involved 1,500 personnel.
B012End of reported active wartime-airbase period.
B02113 reviewed claims. Evidence locators resolve against the stored article hash or archived snapshot.
| Subject | Claim | Value | Date | Evidence | Certainty |
|---|---|---|---|---|---|
| milestone | Event | Construction of the Type A airbase began. | 1960 | B005 | Reported |
| milestone | Event | Airbase reported complete. | 1962 | B007 | Reported |
| milestone | Event | Troop use began. | 1963 | B007 | Reported |
| milestone | Event | Bas 90 adaptation began; a proposed runway C was not built. | 1987 | B009 | Reported |
| milestone | Event | Exercise reportedly involved 1,500 personnel. | 1994 | B012 | Reported |
| milestone | Event | End of reported active wartime-airbase period. | 2006 | B021 | Reported |
| lifecycle summary | Event | Bas 60 operational phase. | 1962–1987 | B007,B009 | Reported |
| lifecycle summary | Event | Bas 90 adaptation and later operational phase. | 1987–2006 | B009,B021 | Reported |
| quantitative observation | Exercise Strength | 1,500 persons | 1994 | B012 | Reported |
| quantitative observation | Peak Base Group Strength | 2,000 persons | — | B015 | Reported |
| quantitative observation | Underground Fuel Tank Standard Sizes | {"values":[100,200]} | — | B007 | Reported |
| technical system | Fuel | Underground 100 and 200 m³ tanks supported dispersed aircraft operations. | — | B007 | Reported |
| technical system | Aircraft And Personnel Shelter | SK6 personnel shelters and protected aircraft shelters are described for the base. | — | B006,B026,B027 | Reported |
No named project parties were extracted.