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)Original sheet identity has not yet been reconciled.
Extraction: Reviewed · extraction partial. Partial timed visual review: Partial sequential 1000px JPEG65 locator review of public/archive/drawings/complete-upright/IMG_1264.webp after OCR/catalogue and existing reports. Actual clockwise reading rotation 0 degrees. Normalized access-image regions before rotation. Full fine-region extraction remains outstanding. Partial timed visual review: Text-first audit then sequential WebP and targeted derivative crop; new selected region properties only. Partial timed visual review: Stair H basement/first plan and selected Stair F section B-B callouts, inspected sequentially. W227 Stair F finish/count properties from prior package omitted. Partial timed visual review: First-floor Stair H independent numbered-band recount. Two crops; starting digit 1 not securely readable. Partial timed visual review: Bounded endpoint/profile regions only; no complete-sheet extraction or physical geometry approval. Partial timed visual review: Selected fine closure only; not exhaustive source extraction. Partial timed visual review: Selected native original-layer crops reviewed; untouched regions remain open.
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Scroll or pinch to inspect this drawing. 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.
Partial drawing/detail evidence only; no installed geometry or count established.
Drawing notation: STAIRS F & H
Partial drawing/detail evidence only; no installed geometry or count established.
Partial drawing/detail evidence only; no installed geometry or count established.
Drawing notation: 7TH FLOOR PLAN; 6TH FLOOR PLAN; Sections A-A B-B C-C
Partial drawing/detail evidence only; no installed geometry or count established.
Partial drawing/detail evidence only; no installed geometry or count established.
Drawing notation: BASEMENT PLAN; 1ST FLOOR PLAN; Sections A-A B-B
Partial drawing/detail evidence only; no installed geometry or count established.
Partial drawing/detail evidence only; no installed geometry or count established.
Drawing notation: DUCT SPACE / STAIR HALL adjacent to Stair F
Partial drawing/detail evidence only; no installed geometry or count established.
Partial drawing/detail evidence only; no installed geometry or count established.
Drawing notation: NOTE FOR TYPICAL DETAIL SEE SHEET NO.228
Partial drawing/detail evidence only; no installed geometry or count established.
Partial drawing/detail evidence only; no installed geometry or count established.
Drawing notation: Red/orange annotation in stair section [unreadable]
Partial drawing/detail evidence only; no installed geometry or count established.
Numeric value unresolved
Partial drawing/detail evidence only; no installed geometry or count established.
Drawing notation: Floor levels, widths, landing/riser geometry, rail/member sizes and material assignments unresolved
Partial drawing/detail evidence only; no installed geometry or count established.
Printed label inside seventh-floor Stair Hall; finish extent and substrate missing.
Drawing notation: LINOLEUM FLOOR
Printed label inside seventh-floor Stair Hall; finish extent and substrate missing.
117 in
Dimension in bottom part of seventh-floor stair-hall plan; classified endpoints and accepted wall faces unresolved.
Drawing notation: 9'-9"
Dimension in bottom part of seventh-floor stair-hall plan; classified endpoints and accepted wall faces unresolved.
Label in sixth-floor passage beside lower flight, not universal sixth-floor finish.
Drawing notation: RUBBER TILE FL.
Label in sixth-floor passage beside lower flight, not universal sixth-floor finish.
Same passage label; base profile and height unresolved.
Drawing notation: WOOD BASE
Same passage label; base profile and height unresolved.
22 count
Directional count printed on sixth-floor plan; individual riser heights, count-by-flight and endpoint reconciliation required.
Drawing notation: UP 22 RISERS
Directional count printed on sixth-floor plan; individual riser heights, count-by-flight and endpoint reconciliation required.
22 count
Directional count printed on seventh-floor plan; numeric tread labels not substituted for riser heights.
Drawing notation: DOWN 22 RISERS
Directional count printed on seventh-floor plan; numeric tread labels not substituted for riser heights.
21 count
Total directional count printed in basement flight; does not resolve individual riser heights or count per flight.
Drawing notation: UP 21 RISERS
Total directional count printed in basement flight; does not resolve individual riser heights or count per flight.
Basement stair-hall label only; substrate, thickness and finish extent missing.
Drawing notation: CEMENT FLOOR
Basement stair-hall label only; substrate, thickness and finish extent missing.
144 in
Top horizontal plan dimension spanning vicinity of Column 46 and Column 53; precise endpoints and structural-center versus wall-face class require review.
Drawing notation: 12'-0"
Top horizontal plan dimension spanning vicinity of Column 46 and Column 53; precise endpoints and structural-center versus wall-face class require review.
Leader at upper-left first-floor plan wall. Height, profile and extent not established.
Drawing notation: WOOD WAINSCOT
Leader at upper-left first-floor plan wall. Height, profile and extent not established.
21 count
Rotated printed first-floor plan flight label; text verified with upright crop. Not a vertical dimensional height.
Drawing notation: DOWN 21 RISERS
Rotated printed first-floor plan flight label; text verified with upright crop. Not a vertical dimensional height.
Label on section B-B wall above flight; thickness and extent unresolved.
Drawing notation: PLASTER WALLS
Label on section B-B wall above flight; thickness and extent unresolved.
58 in
Horizontal dimension over lower toilet-room opening in section B-B. Opening type/host and endpoint classes unregistered.
Drawing notation: 4'-10"
Horizontal dimension over lower toilet-room opening in section B-B. Opening type/host and endpoint classes unregistered.
41 in
Horizontal witness under lower landing in section B-B. Storey landing assignment and endpoints need reconciliation.
Drawing notation: 3'-5"
Horizontal witness under lower landing in section B-B. Storey landing assignment and endpoints need reconciliation.
Both access and master crops show 2–8. Do not promote prior apparent 1–8 range or inferred eight rises based only on the total21.
Drawing notation: [2, 3, 4, 5, 6, 7, 8 legible; starting 1 at left newel/boundary obscured]
Both access and master crops show 2–8. Do not promote prior apparent 1–8 range or inferred eight rises based only on the total21.
Numeric value unresolved
An eight-rise candidate remains in prior source; this independent review cannot certify it.
Drawing notation: [starting digit / first rise not securely legible]
An eight-rise candidate remains in prior source; this independent review cannot certify it.
Seven labels independently readable in lower horizontal band; no metric lengths inferred.
Drawing notation: 9, 10, 11, 12, 13, 14, 15
Seven labels independently readable in lower horizontal band; no metric lengths inferred.
7 count
Inclusive arithmetic count of seven printed numbered stations; physical terminal-riser convention remains unaccepted.
Drawing notation: 15 - 9 + 1
Inclusive arithmetic count of seven printed numbered stations; physical terminal-riser convention remains unaccepted.
Calculated from: stair-companion1013b-img_1264-m016
Six labels independently readable in left vertical band; terminal21 near upper landing remains a numbered station.
Drawing notation: 16, 17, 18, 19, 20, 21
Six labels independently readable in left vertical band; terminal21 near upper landing remains a numbered station.
6 count
Inclusive count of six printed numbered stations; does not establish six fabricated risers or equal height.
Drawing notation: 21 - 16 + 1
Inclusive count of six printed numbered stations; does not establish six fabricated risers or equal height.
Calculated from: stair-companion1013b-img_1264-m018
40 in
Upper horizontal H flight strip witness from outer drawn enclosure reference toward central newel/guard boundary. No handrail clearance.
Drawing notation: 3′4″
Upper horizontal H flight strip witness from outer drawn enclosure reference toward central newel/guard boundary. No handrail clearance.
40 in
Lower H return strip source transverse span; guard/newel faces and outer wall finish plane unclassified.
Drawing notation: 3′4″
Lower H return strip source transverse span; guard/newel faces and outer wall finish plane unclassified.
10 in
Dimension lies across central horizontal rail/newel band between the two flight strips. It is not a tread-going reading.
Drawing notation: 10″
Dimension lies across central horizontal rail/newel band between the two flight strips. It is not a tread-going reading.
60 in
Bottom horizontal printed span between the numbered15-side and9-side flight edge witnesses. Numbered bands already extracted; no new count or calculated going.
Drawing notation: 5′0″
Bottom horizontal printed span between the numbered15-side and9-side flight edge witnesses. Numbered bands already extracted; no new count or calculated going.
40 in
Right landing longitudinal source span, separately scoped from the equal numeric transverse flight widths.
Drawing notation: 3′4″
Right landing longitudinal source span, separately scoped from the equal numeric transverse flight widths.
Numeric value unresolved
Left bottom span carries a fine fraction; withheld rather than copied from the right landing.
Drawing notation: 3′4[small fraction not certified]
Left bottom span carries a fine fraction; withheld rather than copied from the right landing.
Readable station progression only. Starting1 remains obscured; this does not certify an8+7+6 riser recipe.
Drawing notation: [readable upper horizontal2…8 proceeds right; lower9…15 proceeds left; left vertical16…21 proceeds up]
Readable station progression only. Starting1 remains obscured; this does not certify an8+7+6 riser recipe.
Calculated from: stair-companion1013b-img_1264-m014, stair-companion1013b-img_1264-m016, stair-companion1013b-img_1264-m018
Page-local handedness from readable bands only; no world transform or accepted walking path.
Drawing notation: [clockwise: upper strip right, right turn down, lower strip left, left turn up in paper x-right/y-up frame]
Page-local handedness from readable bands only; no world transform or accepted walking path.
Numeric value unresolved
No clear-width certification or closed landing polygon.
Drawing notation: [3′4″ strip witnesses do not account for cap, rail and wall finish intrusions]
No clear-width certification or closed landing polygon.
40.75 in
Left bottom landing source span from drawn inner enclosure wall reference to numbered15-side turn/flight boundary. Both1264 and1121 support fraction; no accepted finish-face equivalence.
Drawing notation: 3′4¾″
Left bottom landing source span from drawn inner enclosure wall reference to numbered15-side turn/flight boundary. Both1264 and1121 support fraction; no accepted finish-face equivalence.
Classifies source-local witness stations only; wood wainscot rule and old numbered bands reused. Finished wall offset and handrail intrusion unresolved.
Drawing notation: [left landing witness begins at inner drawn wall line and ends at15-side flight/guard reference]
Classifies source-local witness stations only; wood wainscot rule and old numbered bands reused. Finished wall offset and handrail intrusion unresolved.
117 in
Bottom horizontal witness in seventh-floor stair hall; exact rough/finish endpoints remain unaccepted. Source-local only; no accepted installed geometry.
Drawing notation: 9′9″
Bottom horizontal witness in seventh-floor stair hall; exact rough/finish endpoints remain unaccepted. Source-local only; no accepted installed geometry.
58 in
Section B-B lower opening horizontal witness; does not assign frame/rough opening endpoints. Source-local only; no accepted installed geometry.
Drawing notation: 4′10″
Section B-B lower opening horizontal witness; does not assign frame/rough opening endpoints. Source-local only; no accepted installed geometry.