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 W228
Extraction: Reviewed · extraction partial. Separated rough/finish/stringer planes, B/D/E base and tread/riser construction labels. Fractional wall-face dimensions not securely read. Text-first review followed by one complete upright source and sequential crops from the same photograph. Reviewed the title block; typical landing/riser section applying to Stairs B, D and E; newel-post sections at landings and floor levels; the Stair E floor-level detail; safety-tread, panelled-riser, wall-string, channel and finish callouts; and the wall-handrail bracket note. Alternate photograph IMG_1265 and close-up photographs IMG_1123/IMG_1124 were identified but not opened. Reused the verified W228 Stair E-applicable typical details and explicit two-riser landing detail as a candidate analytical transition only. 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: OCR and existing text packages searched before one sequential upright WebP inspection. Additive region review; existing verified properties reused, not copied. No accepted geometry or cross-floor connection. Partial timed visual review: Text-first additive targeted review. Upright access-image coordinates; crops retain upright orientation. Source-local components only; existing verified records reused, not copied. Full image extraction remains incomplete. Partial timed visual review: Selected B/D/E rail/newel vertical witnesses; standard handrail schedule reused. 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: undefined Partial timed visual review: Selected fine closure only; not exhaustive source extraction. Partial timed visual review: Bounded source-local profile/material-note review; no installed instance assignment. Partial timed visual review: undefined Partial timed visual review: undefined
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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.
Drawing notation: FINISH WALL LINE / ROUGH WALL LINE
These are separately labeled planes in the generic two-riser landing detail; neither can be silently substituted for the other.
Numeric value unresolved
Drawing notation: [fraction unresolved]
The printed fraction may resemble ¾″, but its numerator and assignment cannot be certified in this image. No ¾-inch finish thickness is adopted.
Numeric value unresolved
Drawing notation: [fraction unresolved]
Adjacent references distinguish finish wall and projecting metal wall-string/base. Do not assign the finish-layer dimension to the base projection.
Drawing notation: BASE AT LANDINGS FORMED BY EXTENDED WALL STRING
Detail explicitly titled for Stairs B, D, E.
5 in
Typical B/D/E intermediate-landing detail only; do not generalize to all room bases.
Drawing notation: 5″
Vertical dimension runs from landing top to top of projecting wall-string base, not to a room datum.
Drawing notation: REPLACEABLE SAFETY TREADS
Typical section through landing and risers for Stairs B, D, E.
Drawing notation: PANELLED RISERS
Construction/finish relationship; precise product, thickness and composition remain unresolved.
Drawing notation: ALL STAIRS HAVING NON-SLIP OR SAFETY TREADS ARE TO HAVE INTERMEDIATE LANDINGS COVERED WITH SAME MATERIAL AS TREADS
Rough, finish or another stair-side reference remains unresolved.
Rough, finish or another stair-side reference remains unresolved.
Rough, finish or another stair-side reference remains unresolved.
Lower-wall finish/core/other reference remains unresolved.
Lower-wall finish/core/other reference remains unresolved.
Lower-wall finish/core/other reference remains unresolved.
Numeric value unresolved
The nominal 4-inch callout does not resolve applied finish layers.
The nominal 4-inch callout does not resolve applied finish layers.
The nominal 4-inch callout does not resolve applied finish layers.
Numeric value unresolved
epsilonX = type right inner boundary X minus W224 1′4″ endpoint X; null is not zero.
epsilonX = type right inner boundary X minus W224 1′4″ endpoint X; null is not zero.
epsilonX = type right inner boundary X minus W224 1′4″ endpoint X; null is not zero.
Numeric value unresolved
epsilonZ = type lower inner boundary Z minus W224 9′0″ endpoint Z; null is not zero.
epsilonZ = type lower inner boundary Z minus W224 9′0″ endpoint Z; null is not zero.
epsilonZ = type lower inner boundary Z minus W224 9′0″ endpoint Z; null is not zero.
Numeric value unresolved
No numeric jamb station assigned from image scale.
No numeric jamb station assigned from image scale.
No numeric jamb station assigned from image scale.
Numeric value unresolved
Nominal 3′0″ door width does not establish frame or masonry opening.
Nominal 3′0″ door width does not establish frame or masonry opening.
Nominal 3′0″ door width does not establish frame or masonry opening.
Numeric value unresolved
Nominal 7′0″ door height does not establish frame or masonry opening.
Nominal 7′0″ door height does not establish frame or masonry opening.
Nominal 7′0″ door height does not establish frame or masonry opening.
Numeric value unresolved
No exact sill/threshold build-up was extracted.
No exact sill/threshold build-up was extracted.
No exact sill/threshold build-up was extracted.
Companion jamb/head section and door schedule mark remain unresolved.
Companion jamb/head section and door schedule mark remain unresolved.
Companion jamb/head section and door schedule mark remain unresolved.
Numeric value unresolved
Interior-column control delta and wall-face correction remain unresolved.
Interior-column control delta and wall-face correction remain unresolved.
Interior-column control delta and wall-face correction remain unresolved.
Numeric value unresolved
Interior-column control delta and wall-face correction remain unresolved.
Interior-column control delta and wall-face correction remain unresolved.
Interior-column control delta and wall-face correction remain unresolved.
Title, applicability and drawing number read from IMG_1122.
Drawing notation: STAIR DETAILS / TYPICAL FOR STAIRS A·B·C·D·E·F·G & H / W228
One complete source and sequential crops from the same photograph were inspected. Pixel distances were not used as architectural dimensions.
3 in-per-ft
Printed below the sheet title; local details may contain their own scales.
Drawing notation: STAIR DETAILS / TYPICAL FOR STAIRS A·B·C·D·E·F·G & H / W228
One complete source and sequential crops from the same photograph were inspected. Pixel distances were not used as architectural dimensions.
Caption under the typical landing-and-riser section explicitly includes Stair E.
Drawing notation: STAIR DETAILS / TYPICAL FOR STAIRS A·B·C·D·E·F·G & H / W228
One complete source and sequential crops from the same photograph were inspected. Pixel distances were not used as architectural dimensions.
Caption under the floor-level newel-post section.
Drawing notation: STAIR DETAILS / TYPICAL FOR STAIRS A·B·C·D·E·F·G & H / W228
One complete source and sequential crops from the same photograph were inspected. Pixel distances were not used as architectural dimensions.
12 in
Printed beside the channel in the B/D/E landing newel section; member length and weight remain unresolved.
Drawing notation: STAIR DETAILS / TYPICAL FOR STAIRS A·B·C·D·E·F·G & H / W228
One complete source and sequential crops from the same photograph were inspected. Pixel distances were not used as architectural dimensions.
6 in
Printed beside the floor-level channel in the B/D/E newel section; member length and weight remain unresolved.
Drawing notation: STAIR DETAILS / TYPICAL FOR STAIRS A·B·C·D·E·F·G & H / W228
One complete source and sequential crops from the same photograph were inspected. Pixel distances were not used as architectural dimensions.
2 riser-count
Section and elevation captions explicitly establish two risers within the landing. W228 does not identify the Stair E storey to which this condition applies.
Drawing notation: STAIR DETAILS / TYPICAL FOR STAIRS A·B·C·D·E·F·G & H / W228
One complete source and sequential crops from the same photograph were inspected. Pixel distances were not used as architectural dimensions.
10 in
Printed horizontal witness in the two-riser landing section; approximate by notation and not used as an exact insertion dimension.
Drawing notation: STAIR DETAILS / TYPICAL FOR STAIRS A·B·C·D·E·F·G & H / W228
One complete source and sequential crops from the same photograph were inspected. Pixel distances were not used as architectural dimensions.
0.25 in
Printed construction callout in the two-riser landing section; plate extents and connections remain unresolved.
Drawing notation: STAIR DETAILS / TYPICAL FOR STAIRS A·B·C·D·E·F·G & H / W228
One complete source and sequential crops from the same photograph were inspected. Pixel distances were not used as architectural dimensions.
10 in
Printed beside the channel in the two-riser landing section; member length and weight remain unresolved.
Drawing notation: STAIR DETAILS / TYPICAL FOR STAIRS A·B·C·D·E·F·G & H / W228
One complete source and sequential crops from the same photograph were inspected. Pixel distances were not used as architectural dimensions.
Architectural inference from W226's 20-up/22-down readings and W228's explicit two-riser landing detail. No callout or checked geometry yet proves that this W228 condition applies to the level-6/7 Stair E connection.
Drawing notation: STAIR DETAILS / TYPICAL FOR STAIRS A·B·C·D·E·F·G & H / W228
One complete source and sequential crops from the same photograph were inspected. Pixel distances were not used as architectural dimensions.
Construction class only; exact product/profile unresolved.
Drawing notation: STAIR DETAILS / TYPICAL FOR STAIRS A·B·C·D·E·F·G & H / W228
One complete source and sequential crops from the same photograph were inspected. Pixel distances were not used as architectural dimensions.
Construction class only.
Drawing notation: STAIR DETAILS / TYPICAL FOR STAIRS A·B·C·D·E·F·G & H / W228
One complete source and sequential crops from the same photograph were inspected. Pixel distances were not used as architectural dimensions.
Relationship is explicit; profiles, lengths and connections unresolved.
Drawing notation: STAIR DETAILS / TYPICAL FOR STAIRS A·B·C·D·E·F·G & H / W228
One complete source and sequential crops from the same photograph were inspected. Pixel distances were not used as architectural dimensions.
Printed note beside the B/D/E section; exact Stair E material assignment remains unresolved.
Drawing notation: STAIR DETAILS / TYPICAL FOR STAIRS A·B·C·D·E·F·G & H / W228
One complete source and sequential crops from the same photograph were inspected. Pixel distances were not used as architectural dimensions.
Three printed callouts in the B/D/E floor-level section; thicknesses and extents unresolved.
Drawing notation: STAIR DETAILS / TYPICAL FOR STAIRS A·B·C·D·E·F·G & H / W228
One complete source and sequential crops from the same photograph were inspected. Pixel distances were not used as architectural dimensions.
6 ft-oc-max
Generic W228 handrail note; Stair E rail material and actual bracket stations require storey-specific reconciliation.
Drawing notation: STAIR DETAILS / TYPICAL FOR STAIRS A·B·C·D·E·F·G & H / W228
One complete source and sequential crops from the same photograph were inspected. Pixel distances were not used as architectural dimensions.
W228 establishes component classes and selected nominal channel depths, but complete profiles, lengths, connections, storey exceptions and W225/W226 insertion geometry are not yet resolved.
Drawing notation: STAIR DETAILS / TYPICAL FOR STAIRS A·B·C·D·E·F·G & H / W228
One complete source and sequential crops from the same photograph were inspected. Pixel distances were not used as architectural dimensions.
0.875 ft
The typical plan numbers ten risers per flight; nine tread goings close the printed 7-foot-10.5-inch run exactly. This supports diagnostic stations only, not fabrication geometry.
Drawing notation: 2ND, 3RD, 4TH, 5TH & 6TH FLOOR PLANS / 7TH FLOOR PLAN / 7'-10 1/2" / DOWN 20 RISERS / UP 20 RISERS / DOWN 22 RISERS / UP 20 RISERS
Upper-story plan and datum controls; no metric X/Z transform is accepted.
Drawing notation: TYPICAL SECTION OF LANDINGS WHERE TWO RISERS OCCUR / ELEVATION WHERE TWO RISERS OCCUR IN LANDING
Candidate two-riser landing construction only; storey applicability is not printed.
Calculated from: w226-typical-run-dimension, w226-typical-up-riser-count
67 ft
W226 regional Stair E datum converted to the project first-floor local datum.
Drawing notation: 2ND, 3RD, 4TH, 5TH & 6TH FLOOR PLANS / 7TH FLOOR PLAN / 7'-10 1/2" / DOWN 20 RISERS / UP 20 RISERS / DOWN 22 RISERS / UP 20 RISERS
Upper-story plan and datum controls; no metric X/Z transform is accepted.
Drawing notation: TYPICAL SECTION OF LANDINGS WHERE TWO RISERS OCCUR / ELEVATION WHERE TWO RISERS OCCUR IN LANDING
Candidate two-riser landing construction only; storey applicability is not printed.
Calculated from: w226-sixth-floor-finish-elevation, w226-first-floor-finish-elevation