← Back to the building1933 reconstruction · research preview

The measured building.

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.

Source photographs: 464
Identified objects: 4872
Verified printed values: 12046
Disputed values: 20

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)

Open the coordinated research model →

IMG_1114 · Folder 191

Detail of Stair D and Fan Room

Sheet W224

Extraction: Reviewed · extraction partial. Typical lower stair plan and sections A-A/B-B: flight widths, numbered 9+2+9 arrangement, going, landing spans, selected materials and seventh datum. Read column reference marks 82/68, 1′4″ horizontal offset, and 9′0″ TO CL COL82 ordinate; face endpoints remain unresolved. Entry leaf size and swing, nominal 4-inch ordinary-floor partition, and offset witness semantics; no exact finished-face insertion. Stair D W224/W-6 fourth-floor placement comparison; no accepted insertion or opening polygon. Partial timed visual review: Existing W224 detailed packages reused as text only; no source inspection or new measurement. Outstanding roof/fan-room regions, rail/newel, thickness and registration retained. 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: Additive selected-region review. Prior verified records reused without duplication; no accepted geometry. Partial timed visual review: Selected construction and reference-face review only; source evidence does not authorize physical geometry. Partial timed visual review: Text reuse only: preserve existing verified stair counts/width controls and unresolved endpoint classes without new visual review or duplicate numeric readings. Partial timed visual review: New section A-A local notes/witnesses do not settle the uncertain tread-material abbreviation, finish/core planes, headroom, profiles or any world-transform question. Partial timed visual review: undefined Partial timed visual review: Prior evidence reused as text only; no new pixel evidence or exhaustive coverage.

Unresolved extraction work

Upper fan-room/roof flight geometry
Second-floor partition exception
Sixth-floor variants beyond the separately recorded landing depth
Seventh-floor and equipment-room detail
W228 companion details
Rail/newel geometry
Construction thickness and soffit profiles
Full material-code schedule and notes
World placement
Exact witness endpoints at hatched stair walls
Finish-face/structure-face offsets
Other variants and companion details
Rough versus finish face of horizontal witness
9-foot lower-wall witness plane
Exact finish thickness and door jamb interface
Other W224 plans and regional exceptions
A dimensioned W-6 station tying the fourth-floor Stair D lines to printed C82/C68 centers, with the symbols positively identified
Face-equivalence check matching W224's 1-foot-4-inch horizontal witness to one W-6 line and W224's 9-foot vertical witness to one W-6 line
Independent review of source picks and local distortion under the frozen W-6 transform
A classified, closed W-6 slab-opening edge distinct from stair enclosure, flight and landing lines
A separately classified fifth-floor opening and floor-to-floor correspondence
Door/jamb, rough/finish wall and structural slab/beam interfaces
Remaining dimension chains and fractional witness endpoints
Opening, wall and slab face classification
Companion W228 construction and revision reconciliation
Floor-plan registration and installed instance assignment
Independent geometry/model acceptance checks
Complete fine dimension chains and endpoint classification
W228 construction and material-code reconciliation
Historical instance and floor-plan registration
Exact rail/gate profiles, fasteners and opening geometry
Independent modeling and connection checks
Remaining fine fractions and complete witness endpoint classification
Material specification, fastening, profile and installed occurrence
Revision authority and companion W228 reconciliation
Floor-plan registration and independent model checking
Accepted rail-to-rail clear width, closed landing/slab-opening boundaries and headroom
Complete material/gauge/fastener schedules, cap/moulding profiles and finish extents; remaining notes and revisions not fully reviewed
Checked source-to-building transforms, storey/installed instance applicability and independent physical checks
Rail-to-rail clear width and rough/finish face classification remain unaccepted
Closed landing/slab-opening boundaries, physical elevations and headroom
Checked source-to-building transform and installed instance applicability
Full unreviewed notes, fine profiles, connections and revision authority
New section A-A local notes/witnesses do not settle the uncertain tread-material abbreviation, finish/core planes, headroom, profiles or any world-transform question.
Complete fine dimension chains, rail/string/nosing profiles, fastener/gauge/material schedules and exact finish/rough endpoint classes remain partial.
Installed instance/storey assignment, source-to-building registration, closed slab openings, headroom and independent physical checks remain outstanding.
Companion W228 details and governing revision/installation applicability remain unresolved; source extraction does not approve model geometry.
Complete member/profile dimensions, fastener sizes, finish thicknesses and endpoint classes
Installed instance allocation, floor/terminal applicability and revision disposition
Companion W228/exposure reconciliation, source-to-building registration and independent physical checks
Complete fine chains, rail/stringer/nosing profiles, fasteners, material/finish extents and endpoint classes remain partial.
Installed quantities, closed landing/slab-opening boundaries, headroom, physical clear widths, source-to-building registration and independent checks remain unresolved.
Companion W228 and governing original/revision applicability remain unresolved; no accepted geometry or whole-source completion.
All world placement, face correspondence, rail profile, headroom and clearance questions retained; local notes do not close physical geometry.

Download OCR observations (unverified)

Loading the selected drawing…

Scroll or pinch to inspect this drawing. Archival drawing photograph · Oregon Historical Society research collections.

Open source image separately ↗

56 matching objects

An identified object is not a fully modeled object. Missing dimensions, locations and relationships remain explicit.

column · column-68Modeling: not-modeled

Support 68

Research representation: control marker. Architectural checks: pending.

Basement · Third floor · First floor · Original mark: 68

Source relationships · not a verified physical connection

scheduled by (printed, verified): W409 interior schedule · C68

19 recorded properties

Still to extract or check

Confirmed individual support symbol center
Local sheet deformation and as-built position
Steel-to-footing and cap-center offset
Storey continuation and actual bearing association
storey-by-storey member presence
exact section notation and leg/plate thicknesses
member segment endpoints
splice-plate, batten, channel and cover-plate dimensions where applicable
absolute foot/top-of-base-plate elevation
fabrication quantity and connections
Verified third-floor absolute plan station
Continuous dimension or centerline tie to printed perimeter controls
Individual storey continuation check
Exact tie from framing line to column control center
Any beam-to-column transverse eccentricity
Third-floor column center accepted X/Z
Relationship to W224 inner wall-face reference

Detail of Stair D and Fan Room

56 matching objects

Support 68

Support 82

STAIR D

stair-d threshold

Stair D W224 typical-floor unplaced type

Stair D type: first long flight

Stair D type: transverse two-riser flight

Stair D type: returning long flight

Stair D type: lower intermediate landing

Stair D type: upper intermediate landing

Stair D type: default floor landing footprint

Stair D entry partition — analytical host candidate

tread · 01 · Stair D study

tread · 02 · Stair D study

tread · 03 · Stair D study

tread · 04 · Stair D study

tread · 05 · Stair D study

tread · 06 · Stair D study

tread · 07 · Stair D study

tread · 08 · Stair D study

intermediate-landing · 09 · Stair D study

tread · 10 · Stair D study

intermediate-landing · 11 · Stair D study

tread · 12 · Stair D study

tread · 13 · Stair D study

tread · 14 · Stair D study

tread · 15 · Stair D study

tread · 16 · Stair D study

tread · 17 · Stair D study

tread · 18 · Stair D study

tread · 19 · Stair D study

floor-landing · bottom · Stair D study

floor-landing · top · Stair D study

riser · 01 · Stair D study

riser · 02 · Stair D study

riser · 03 · Stair D study

riser · 04 · Stair D study

riser · 05 · Stair D study

riser · 06 · Stair D study

riser · 07 · Stair D study