← 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_1245 · Folder 189

BALUSTRADE WALL AT GRADE

Sheet number unresolved

Extraction: Reviewed · extraction partial. Selected Main Street printed elevations and chain dimensions; Main entrance and flagpole parapet dimensions; one labeled Sixth Street entrance retaining-wall/ramp section as a site-wall construction witness. Partial timed visual review: Source-local photographed design detail; no installed quantity, accepted geometry or world placement authorized. Partial timed visual review: Source-local photographed drawing evidence only; stacked marks are interpreted as drawing references, not historical entrance identifiers. No installed quantities or accepted geometry. Partial timed visual review: Interior face of parapet looking toward Main Street; page-left/right only. Raw pixel content is upright despite stored EXIF 6. New readings are independent receipts, not silent corrections to prior package.

Highlighted reading: . Flagpoles are drawn but no secure height dimension is present.

Show every recorded property on this drawing →

Unresolved extraction work

Sheet number and issue date
Main entrance stair tread count, run, rise, landing depths and nosing
Main entrance overall stair width and exact plan registration
Continuous numeric sidewalk profile through the central entrance field
Sidewalk clear width, curb width/height and curb-to-property-line offset
Retaining-wall thickness, batter, footing dimensions, coping profile and reinforcement
Flagpole overall height, shaft/base dimensions and exact plan offsets
Printed chain terms that remain too soft to read reliably
Broadway, Madison and Sixth Street elevation chains outside the selected witness
Construction/as-built and present-day correspondence
Remaining fine dimension chains, fractions, material schedules and revision annotations need targeted review
Floor/room and installed-instance registration, quantities, finishes and companion callout reconciliation unresolved
Full-region extraction and architectural acceptance remain incomplete
Remaining dimensions, fractions, all notes, revisions and material hatch application need region-by-region review
Reference sheet correspondence, historical instance/floor/room registration and independent checks unresolved
Extraction partial; modeling/checking not accepted
Main-right chain endpoint verification
Companion plan correspondence and world orientation
Stair/pole grade station reconciliation
Full dimensions, material schedule and revisions

Download OCR observations (unverified)

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 ↗

13 matching objects

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

grade-profile · site-main-street-grade-profileModeling: not-modeled

Main Street site-grade profile

Research representation: none. Architectural checks: pending.

Floor assignment pending · Original mark: SIDEWALK GRADE

Source relationships · not a verified physical connection

grade profile below floor datum (observed, verified): Main Street central entrance/sidewalk field

3 recorded properties

Still to extract or check

Intermediate station/elevation pairs
Street-centerline and curb elevations
Accepted world polyline

Inspect this object’s readings →

View source IMG_1245 ↗

sidewalk · site-main-street-sidewalkModeling: not-modeled

Main Street sidewalk design surface

Research representation: none. Architectural checks: pending.

First floor · Original mark: SIDEWALK GRADE

5 recorded properties

Still to extract or check

Width
Thickness
Cross slope
Curb section
Property-line offset
Material specification
Whether the drawn half is east or west of the entrance centerline
Exact longitudinal and transverse world station of the 83.14 sidewalk point
Grade interpolation between the 83.14 and 83.26 witnesses
Sidewalk width, cross slope, curb section, pavement thickness, and as-built grade

Inspect this object’s readings →

View source IMG_1245 ↗

retaining-wall-run · site-main-street-retaining-wall-page-leftModeling: not-modeled

Main Street page-left retaining/parapet wall run

Research representation: none. Architectural checks: pending.

First floor

7 recorded properties

Still to extract or check

Wall thickness
Wall height at intermediate stations
Coping profile
Footing dimensions
Accepted world placement

Inspect this object’s readings →

View source IMG_1245 ↗

site-assembly · site-main-street-central-fieldModeling: not-modeled

Main Street central entrance/sidewalk field

Research representation: none. Architectural checks: pending.

First floor

7 recorded properties

Still to extract or check

Plan geometry
Meaning of each chain endpoint
Exact relation of the sidewalk-grade line to the Main entrance stair

Inspect this object’s readings →

View source IMG_1245 ↗

retaining-wall-run · site-main-street-retaining-wall-page-rightModeling: not-modeled

Main Street page-right retaining/parapet wall run

Research representation: none. Architectural checks: pending.

Floor assignment pending

3 recorded properties

Still to extract or check

Wall thickness
Intermediate top elevations
Coping profile
Footing dimensions
Accepted world placement

Inspect this object’s readings →

View source IMG_1245 ↗

exterior-stair · main-north-entrance-stepsModeling: analytical-preview

Main Street north entrance steps

Research representation: boundary trace. Architectural checks: pending.

First floor

Source relationships · not a verified physical connection

centered on (printed, verified): Main Street central entrance/sidewalk field
bounded by (observed, verified): Parapet at Main Street entrance
registered plan context from (derived, unreviewed): FIRST FLOOR PLAN enclosed boundary
centered on (traced, unreviewed): Main exterior center door group

32 recorded properties

Still to extract or check

Run
Rise
Riser count
Tread count
Tread going
Overall width
Landing geometry
Handrails
Plan registration
Printed riser count
Printed riser height
Lower landing depth
Nosing/profile and exact stone tread build-up
Exact east/west assignment of the half plan
North-south world insertion from property line or building face
As-built correspondence
Step-detail sheet number from IMG_1244
Nosing profile and projection
Riser profile/height from a fabrication detail
Tread thickness/profile
Stone material/specification
Physical stepped surface
Printed riser count and height
Tread/riser/nosing construction profile
Flared plan boundary and parapet construction
Rail physical geometry
Threshold detail resolving 93.24 versus 93.25

Inspect this object’s readings →

View source IMG_1245 ↗

parapet-assembly · main-north-entrance-parapetModeling: not-modeled

Parapet at Main Street entrance

Research representation: none. Architectural checks: pending.

First floor · Original mark: PARAPET AT MAIN ST. ENTRANCE

Source relationships · not a verified physical connection

adjoins (observed, unreviewed): Main Street north entrance steps

15 recorded properties

Still to extract or check

Parapet height
Wall thickness
Coping profile
Lantern/finial dimensions
Exact plan placement
Exact mapping of each plan control to historic parapet faces
Accepted wall thickness and coping profile
World registration

Inspect this object’s readings →

View source IMG_1245 ↗

type · main-north-flagpole-typeModeling: not-modeled

Main Street flagpole unresolved design type

Research representation: none. Architectural checks: pending.

Floor assignment pending

2 recorded properties

Still to extract or check

Overall height
Shaft diameter and taper
Base dimensions
Foundation and anchorage
Material and finish

Inspect this object’s readings →

View source IMG_1245 ↗

flagpole-instance · main-north-flagpole-page-leftModeling: not-modeled

Main Street page-left flagpole

Research representation: none. Architectural checks: pending.

First floor

Source relationships · not a verified physical connection

paired about central field (observed, verified): Main Street page-right flagpole
typed by (printed, unreviewed): W-213 Main Street flagpole assembly type

7 recorded properties

Still to extract or check

Overall height
Shaft diameter and taper
Base dimensions
Foundation/anchorage
Exact world station
World X/Z axis
Foundation
Which eagle hand applies
As-built correspondence

Inspect this object’s readings →

View source IMG_1245 ↗

flagpole-instance · main-north-flagpole-page-rightModeling: not-modeled

Main Street page-right flagpole

Research representation: none. Architectural checks: pending.

First floor

Source relationships · not a verified physical connection

typed by (printed, unreviewed): W-213 Main Street flagpole assembly type

9 recorded properties

Still to extract or check

Overall height
Shaft diameter and taper
Base dimensions
Foundation/anchorage
Exact world station
World X/Z axis
Foundation
Which eagle hand applies
As-built correspondence

Inspect this object’s readings →

View source IMG_1245 ↗

parapet-assembly · main-north-flagpole-parapetModeling: not-modeled

Parapet at Main Street flagpole

Research representation: none. Architectural checks: pending.

Floor assignment pending · Original mark: PARAPET AT FLAGPOLE

2 recorded properties

Still to extract or check

Front-elevation total width
Parapet height
Wall thickness
Pole-base relationship
Plan placement

Inspect this object’s readings →

View source IMG_1245 ↗

site-wall-section · site-wall-section-3-3Modeling: not-modeled

Site retaining/parapet wall Section 3-3

Research representation: none. Architectural checks: pending.

Floor assignment pending · Original mark: SECTION 3-3

Source relationships · not a verified physical connection

section of (observed, verified): Sixth Street entrance wall/ramp turn

3 recorded properties

Still to extract or check

Wall thickness
Footing size
Rail height and section
Applicability beyond Sixth Street entrance

Inspect this object’s readings →

View source IMG_1245 ↗

site-entrance-plan · sixth-street-entrance-site-turnModeling: not-modeled

Sixth Street entrance wall/ramp turn

Research representation: none. Architectural checks: pending.

Floor assignment pending · Original mark: SIXTH STREET ENTRANCE

7 recorded properties

Still to extract or check

Full plan closure
Wall thickness at curved return
Curb relationship
Accepted world placement

Inspect this object’s readings →

View source IMG_1245 ↗

View all source photographs →