Rödbergsfortet was excavated from 1903 and completed five years later as one of five autonomous rock forts in Boden fortress. The article gives a Rödbergsfort wartime establishment of 251 artillerymen, 229 infantrymen and 20 engineers (500 people) and identifies multiple turret, casemate and outer-defence positions. It gives no Rödbergsfort floor area or excavation volume. The approximately 600,000 tonnes of blasted stone, 16-year construction period and 1,200 objects refer to the whole Boden fortress programme, not this fort.

inner_structure: Autonomous rock artillery fort with galleries, ammunition magazines, machine rooms, command rooms, medical spaces, sleeping and dining rooms, concrete/masonry casemates and armoured gun turrets; no freestanding inner-building geometry is stated. | other: value: 600000 | unit: tonnes of blasted rock | scope: entire Boden fortress programme | note: Includes five rock forts, moats, tunnels, chambers and gun wells; cannot be allocated to Rödbergsfortet.; Rödbergsfortet's original armament is stated as four 15 cm turret howitzers, four 8 cm turret guns and eight 6 cm casemate guns. The later inventory is four 12 cm turret guns, four 8.4 cm turret guns and four 5.7 cm casemate guns.; Appurtenant works named for Rödbergsfortet include a deep and broad moat on three sides, a cliff on the fourth, a separate two-gun satellite battery, four infantry redoubts, two observation posts and north/south searchlight tracks.

amount_sek: 3.50 | price_date: Boden fortress construction era | basis: rock blaster wage per shift | scope: programme labour rate, not facility cost | note: The article gives a claimed 2017-equivalent of SEK 210 per shift; it publishes no Rödbergsfort construction cost.

system: autonomy and habitability | evidence: The five forts were autonomous, with sleeping/dining rooms, machine rooms, ammunition magazines, stores, command rooms and medical departments. | scope: Boden rock-fort archetype; system: power and heating | evidence: Originally coal/wood stoves; the fortress was electrified and fitted with central heating during the 1910s. | scope: Boden fortress programme; system: water and sanitation | evidence: Water closets are specifically noted as important, but water-supply and sewage geometry/capacity are absent. | scope: Boden forts generally; system: communications | evidence: A large, nodal telephone network was installed across the fortress to survive bombing and artillery fire; a separate radio bunker is also described. | scope: entire Boden fortress, not solely Rödbergsfortet; system: mission equipment | evidence: Multiple turreted heavy and medium guns, casemate flank guns, observation posts and searchlight tracks; later heavy-gun replacement increased range. | scope: Rödbergsfortet and its named outer works

fort-gallery and gun-well excavation; rock support and long-term rock-condition risk; armoured turret/cupola and casemate civil works; deep perimeter moat and terrain shaping; autonomous accommodation, stores and utilities for about 500 personnel; satellite battery, infantry redoubts, observation posts and searchlight infrastructure; heritage-grade masonry, steel and restoration requirements

The named subject is one fort, but substantial evidence is for the five-fort/1,200-object Boden fortress programme. Rödbergsfort-specific staffing totals 500 and its weapon/outer-work counts are unit evidence. The 600,000 tonnes is programme-wide.

Revised upward after source-specific review.

surveyed fort footprint, gallery lengths, cross-sections and levels; Rödbergsfort-only excavation volume separated from moat spoil; turret-well, casemate and ammunition-space dimensions; moat length, width and depth; scope boundary for satellite battery and outer redoubts; site-specific concrete, masonry, armour and rock-support quantities; original Rödbergsfort construction and modernization costs

Do not assign the 600,000 tonnes of rock or 1,200 objects to Rödbergsfortet; both are fortress-programme figures.; The article alternates original and later armament; replacement scope needs a chosen date/function.; The dossier's four mission packages appear narrower than the article's full emplacement and outer-defence scope.; Reported personnel for the other four forts are contextual and must not be added to the Rödbergsfort unit model.