Analytical flight display width
4.0 ft diagnostic only4 ft
Fits two display flights and a 1.16-foot center gap inside the median envelope. It is not a printed or accepted clear stair width.
Drawing notation: 2ND, 3RD, 4TH, 5TH & 6TH FLOOR PLANS
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)Sheet W226
Extraction: Reviewed · extraction partial. Text-first review followed by one complete source photograph and sequential crops from the same photograph. Reviewed the sheet identity, Section A-A, eighth-, seventh-, typical second-through-sixth-, first- and basement-floor plans, printed riser counts, regional floor elevations, the printed second-floor-only dotted-line exception, and major material/finish callouts. Companion/close-up photographs IMG_1119 and IMG_1120 were identified but not opened. Reused the verified W226 Stair E upper-story extraction and one targeted typical-plan crop to test the printed run, ten-riser-per-flight numbering, second-floor-only dotted-line exception and regional sixth/seventh/eighth-floor datums against registered plan envelopes. Stair E fourth-to-fifth physical flight/landing/shaft gate; no solid authorized. Stair E fourth-to-fifth physical flight/landing/shaft gate; no solid authorized. Stair E fourth-to-fifth physical flight/landing/shaft gate; no solid authorized. Stair E fourth-to-fifth physical flight/landing/shaft gate; no solid authorized. Stair E fourth-to-fifth physical flight/landing/shaft gate; no solid authorized. Stair E fourth-to-fifth physical flight/landing/shaft gate; no solid authorized. Partial timed visual review: OCR, queue and existing extraction packages searched first. One sequential upright WebP inspection; only additive selected properties recorded. Previously verified readings reused without duplication. No complete extraction or accepted geometry. Partial timed visual review: Text/OCR, review-queue and prior-package audit; prior verified readings reused without duplication. No accepted geometry or building connections. Partial timed visual review: Text reuse only: prior verified evidence retained without duplication; no new visual review or completeness claim. Partial timed visual review: Selected construction and reference-face review only; source evidence does not authorize physical geometry. Partial timed visual review: undefined Partial timed visual review: Text reuse only. Accepted W226-to-building transform requires checked non-collinear registration and held-out residuals; glyph inspection cannot close it. UP20/DOWN22 and regional datum conflicts remain open. Partial timed visual review: Text-only canonical/queue/OCR reuse; no new image inspection. Partial timed visual review: undefined Partial timed visual review: undefined
Highlighted reading: 4.0 ft diagnostic only.
Show every recorded property on this drawing →
Loading the selected drawing…
Scroll or pinch to inspect this drawing. The gold outline locates the selected reading. Archival drawing photograph · Oregon Historical Society research collections.
Open source image separately ↗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.
4 ft
Fits two display flights and a 1.16-foot center gap inside the median envelope. It is not a printed or accepted clear stair width.
Drawing notation: 2ND, 3RD, 4TH, 5TH & 6TH FLOOR PLANS