Every dimension belongs to an object and a drawing. Original room numbers, object marks, printed values and source regions stay together—even when the answer is unresolved.
464 of 464 photographs have extraction records, containing 27,517 properties. Initial image review is not exhaustive extraction: 0 photographs have passed the full-region check. 66 numbered sheets are reconciled. Modeling and architectural registration are separate work; these counts do not establish a complete building.
Download the structured register (JSON)Object: Girder B
Printed values, calculations, image traces and observed counts are different kinds of evidence. “Verified” applies to the specific reading—not to the whole room or model.
Selected visible source evidence only; partial review, applies to depicted assembly.
Drawing notation: GIRDER B
Selected visible source evidence only; partial review, applies to depicted assembly.
Selected visible source evidence only; partial review, applies to depicted assembly.
Selected visible source evidence only; partial review, applies to depicted assembly.
324 in
Original printed crop evidence; no annotation substituted. Dimension applies to depicted girder span, not building-grid measurement.
Drawing notation: 27'-0"
Original printed crop evidence; no annotation substituted. Dimension applies to depicted girder span, not building-grid measurement.
1820 lb/ft
Original printed crop evidence; no annotation substituted.
Drawing notation: 1820# PER FT.
Original printed crop evidence; no annotation substituted.
168 in
Original printed crop evidence; no annotation substituted. Printed internal horizontal dimension; endpoints require detailed registration before use.
Drawing notation: 14′-0″
Original printed crop evidence; no annotation substituted. Printed internal horizontal dimension; endpoints require detailed registration before use.
Numeric value unresolved
Original printed crop evidence; no annotation substituted. Rivet fraction remains ambiguous despite crop.
Original printed crop evidence; no annotation substituted. Rivet fraction remains ambiguous despite crop.
Original printed crop evidence; no annotation substituted. Plate list visible but fractions/row assignments not safely resolved.
Original printed crop evidence; no annotation substituted. Plate list visible but fractions/row assignments not safely resolved.
Source-local intermediate reference at COL.17. Existing27 ft span and14 ft horizontal witness reused; no full support/instance mapping or force convention accepted.
Drawing notation: ℄ COL.17; 2nd FLOOR LINE
Source-local intermediate reference at COL.17. Existing27 ft span and14 ft horizontal witness reused; no full support/instance mapping or force convention accepted.
Source inventory is separate from the floor filters above. Select one drawing to inspect it; no drawing set is preloaded.