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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.

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IMG_1323 · Folder 186

Column schedule / Floor Heights

Sheet W409

Extraction: Reviewed · extraction partial. Partial: floor controls and first-floor perimeter frame; not a complete member or connection schedule. Partial W409 extraction: numbered column identities and separate base-plate properties. Group headers do not establish full-height steel continuity. Exterior schedule body only: all 22 printed groups / 42 column marks; four section rows per group plus two TRUSS interruptions. Reuses existing verified frame-third-to-fourth interval; no new visual inspection. Targeted review of the W409 FLOOR HEIGHTS column, including every printed basement-through-roof interval and the printed roof high-point elevation. The adjacent 96-column section schedule remains covered by column-schedule.json and is not re-transcribed here. C4 schedule, bounded base-plate/offset key, general cover/milling note and typical splice references only. C24 pad schedule and placement gate; no accepted world pad box. C24 pad schedule and placement gate; no accepted world pad box. C1 scheduled size and column control; signed pad-center offset unproved. C1 scheduled size and column control; signed pad-center offset unproved. C1 corner repick; scalar E established, signed pad placement still unresolved. C1 corner repick; scalar E established, signed pad placement still unresolved. C1 corner repick; scalar E established, signed pad placement still unresolved. W-6 Room 402 corridor-wall pilot; only thickness and selected datums have printed numeric support. W-6 Room 402 corridor-wall pilot; only thickness and selected datums have printed numeric support. Broadway C58–C52 fourth-floor shell physical-bounds gate; control frame only. Broadway C58–C52 fourth-floor shell physical-bounds gate; control frame only. Broadway C58–C52 fourth-floor shell physical-bounds gate; control frame only. C24 pad centerline/side-orientation gate; signed X/Z placement remains unresolved. C13–C15 pad schedule and placement gate; finite world pads withheld. C13–C15 pad schedule and placement gate; finite world pads withheld. C13–C15 pad schedule and placement gate; finite world pads withheld. C13–C15 pad schedule and placement gate; finite world pads withheld. Partial timed visual review: Prior-package and OCR audit only; no new image inspection or duplicate verified readings. Partial timed visual review: Text/OCR and prior-package audit only; no new image inspection and no duplicate verified measurements. Partial timed visual review: Prior evidence reused; only selected remaining source-local regions reviewed. No historical placement or accepted physical geometry. Partial timed visual review: undefined Partial timed visual review: undefined Partial timed visual review: undefined

Unresolved extraction work

External elevation datum / benchmark is not established in this set.
Only three absolute floor levels are directly printed and verified here: first93.25,second114.25,sixth160.25. Basement and floors3–5,7–8 are schedule-derived arithmetic, with explicit provenance.
Schedule-derived seventh173.75 may be a raised/interior region. The parallel envelope extraction reports171.75 on another sheet. Do not collapse these into one seventh-floor level until regional geometry is reconciled.
The parallel foundation extraction reports a boiler floor77.75; schedule basement80.25 must not override a local lowered floor.
Roof high point195.42 is not sufficient to establish roof slopes, low points, parapets, penthouses or eave heights.
Steel tags are offsets from floor datums; a single flat steel surface for each story is not supported. Other-story steel top elevations require their own framing sheets.
Interior column coordinates and continuation by floor are not exhaustively transcribed. This extraction includes42 perimeter columns only.
Photograph perspective is not rectified. Normalized regions are approximate retrieval aids only.
Interior offset row C16–C21 depth and light-court wall faces need explicit architectural/framing dimensions; do not derive their dimensions from apparent photograph spacing.
Column schedule describes historic design intent. These drawings alone do not establish as-built or later altered conditions.
every steel-section fraction and plate count in 96-by-storey schedule
all typical base/splice detail dimensions and callouts
full interpretation of truss and girder interruption cells
all grouped-foot offset assignments
auxiliary S/T marks in final interior schedule column
relationship of column tops to roof-plan details
Section schedules are not fully transcribed. Even common-looking cells vary by group and floor.
Some base-plate thickness fractions and offset notations are provisional; retain source photograph for independent check.
A schedule mark identifies a column location, not a guaranteed continuous steel member from basement to roof.
No world positions are calculated here; join to structural-registration.json using printed mark only after tracing section applicability.
Auxiliary S/T marks visible in the final interior cell remain unresolved rather than fabricating identifiers.
Typical exterior column base connection detail
Typical column-splice details at right
Base-plate table and foot-offset assignments (retained in separate column-schedule package)
Bottom general fabrication notes and cap-plate code key
Top I-like section diagram for E22 and its dimensions
W410 truss/plate-girder companion sheet
Roof/framing-plan member endpoints and continuation
Every schedule body size cell has a record, but the fractions enumerated in sourceCoverage.partiallyTranscribedCells remain null. No neighboring-cell substitution is allowed.
All absolute member endpoints, lengths and quantity of fabricated pieces remain unresolved. Four schedule assemblies do not prove exactly four fabricated pieces.
C2/C3 TRUSS cells must remain discontinuities pending identification of actual truss members and bearing/column connections.
Lower splice offsets are read for C4/C1 and the stepped C5–C9 group only; do not generalize the 2′0″ or 3′6″ offset to every exterior mark.
The two 14×1 plates at the lower C4/C1 assemblies are transcribed as additional plates; exact cover-plate placement, length and cutoff are not assigned.
Channel/batten sizes, rivet patterns and splice/base detail dimensions are not extracted here and are not zero.
Seventh-floor regional level conflict remains external to this package; schedule bands must not be converted into a universal F7 slab.
Earlier column-schedule base-plate thicknesses are not revalidated or superseded by this body-cell pass.
Upright image regions are approximate retrieval aids; source orientation must be honored before drawing overlays.
Sheet material establishes historical design intent only; no as-built verification or live-scene acceptance follows.
No change to existing W409 coverage.
Whether every floor-height schedule line applies without local exceptions at Main Street, Madison Street, courts, stairs and roof structures
Exact column-top elevations, which W409 says vary and must be resolved from roof plans
The documented Main-side seventh-floor elevation differs from this schedule reference and remains a separate regional datum
The Stair E seventh-floor elevation on W226 differs from both the generic W409 schedule reference and the Main-side datum
The basement-to-first interval conflicts with the 15-foot interval printed on W225 Stair E and must not be applied to that stair without reconciliation
Exhaustive transcription of all W409 steel-section cells and typical connection details
Other 95 column marks
Complete typical base and splice fabrication dimensions
Unresolved E′ companion Sh.411
Roof framing/column tops
Actual C4 plan cross-section and connection details
W409 suffix a E magnitude independently read and tied to C1
signed footing-center minus C1-column-center X offset
signed footing-center minus C1-column-center Z offset
independent check of actual C1 pad center and two footprint edges
cap/pier center, depth, and bearing transform
reinforcement quantity and detailed geometry
material/finish confirmation and as-built position
signed C1 pad-center minus steel-column-center X offset
signed C1 pad-center minus steel-column-center Z offset
which axis, if any, receives W409 E at the corner and whether a separate corner-axis offset applies
two independently identified and dimensioned C1 pad edges
cap/pier transform and bearing continuity
reinforcement layout and quantities
material and finish confirmation
as-built position
Source-pick both Room 402-side and corridor-side faces at the same stations, classify finish or construction boundaries, and independently verify the printed 4-inch witness connects those faces.
Pick the wall's two true terminations at its demising intersections; split it at the door with exact two-jamb coordinates and verify the opening width, head and threshold against a door schedule or detail.
Close reciprocal Room 402/corridor/Room 443 face and door topology, including more than one check of the 7-foot clear corridor witness.
Validate the frozen W-6 transform locally for classified physical faces and carry uncertainty into canonical X/Z coordinates.
Establish the wall's physical base and top from an applicable section, ceiling/slab detail or schedule; the 137.25 finished-floor datum and 11.5-foot story interval alone do not give wall height.
Assign applicable wall assembly and finish layers, material, rating and quantities from the relevant schedule/details.
same-condition exterior stone to classified interior finish face depth and every intervening layer/material
architecturally classified north/south wall ends, joints and pier returns rather than support-axis stations
physical wall base/top and slab-edge interfaces rather than finished-floor schedule datums
independently checked W-6 to Broadway elevation horizontal registration and B05 key/host identity
masonry versus visible/frame/clear opening bounds, sill, head, jamb returns and reveal depth
W403 stone-face continuity away from the floor-beam section and across the 14-foot span
actual-plan attribution of the Broadway footing centerline to C24 pad center of gravity
signed C24 pad-center minus steel-column-center X offset
signed C24 pad-center minus steel-column-center Z offset, including proof of zero if centered
12-foot versus 14-foot scheduled side assignment to world X/Z from attributable pad edges or printed dimensions
cap, base, reinforcement and as-built geometry
C13 pad C.G. minus steel center signed X offset, including its side orientation
legible C13 footing-bottom elevation
cap center, thickness and bearing transform
reinforcement count and bar placement
independent/as-built check
printed C14 steel-column world X station or checked dimensioned tie
C14 pad C.G. minus steel center signed X and Z offsets, including proof of zero on either axis
applicable eccentricity key or direct pad-center control
printed C15 steel-column world X station or checked dimensioned tie
C15 pad C.G. minus steel center signed X and Z offsets, including proof of zero on either axis
Remaining member, reinforcement and connection dimensions require fine-region review
Revision marks and historical instance placements remain unreconciled
Companion-sheet registration and modeling checks remain outstanding
Complete fine-fraction/member schedule transcription
Historical instance mapping and endpoint registration
Annotated revisions and companion notes reconciliation
Accepted connections and modeling checks
Complete member/plate/bar fraction transcription
Historical instance and source-to-plan registration
Revision authority and companion applicability
Connection and modeling acceptance checks
C4 baseplate T glyph read as5¾, but no independent unit convention for the unlabeled B/L/T table was established. Physical T in inches remains unresolved.
C4 source suffix b is not a world signed footing offset. E′ companion SH.411, seating, column top and plan transforms remain open.
Complete source-to-instance registration, physical endpoints, installed quantities and revision authority remain unresolved.
Unreviewed regions, companion sheets, schedules and fine fractions remain open; this package is not exhaustive coverage.
Material grades, connection capacities, world transforms and independent model/as-built checks remain unestablished.
The milling and cap-symbol source questions resolve; C4 section seating, top, baseplate thickness, signed footing eccentricities and installed column transforms remain open.
2 in milling threshold is a condition, not an individual plate thickness. 6 in cover-plate stop remains a beam-relative offset, not an absolute cutoff elevation.
Complete source-to-instance and endpoint registration remains unresolved.
Material grades, finishes, connection capacities and as-built checks remain unestablished.
Unreviewed regions, fine fractions, schedules, companion applicability and revision authority remain open.
Text-only reuse of bounded C4 T cell: 5¾ glyph already established, independent physical unit convention remains absent. No duplicate crop or closure.
C4 angle seating, E′ companion relation, baseplate thickness units, physical column top and all world-coordinate questions remain unresolved.
Full source-to-instance assignment, physical endpoints, installed quantities and governing revision remain unresolved.
Unreviewed regions, notes, fine fractions and companion sheets remain open; this package is not exhaustive coverage.
No world geometry, material grade, structural capacity or model acceptance established.

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423 matching objects

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

datum · w409-level-6-referenceModeling: not-modeled

W409 sixth-floor schedule reference

Research representation: none. Architectural checks: pending.

Sixth floor · Original mark: 6TH

Arithmetic schedule reference; local construction remains separate.

1 recorded properties

Still to extract or check

Floor build-up
Regional exceptions

Column schedule / Floor Heights

423 matching objects

W409 sixth-floor schedule reference

W409 seventh-floor schedule reference

W409 eighth-floor schedule reference

floor-landing · top · Stair D study

C4 — audited W409 assembly references

C4 B1 — nominal component inventory

C4 B1 angle component 1

C4 B1 angle component 2

C4 B1 angle component 3

C4 B1 angle component 4

C4 B1 plate component 1

C4 B1 additionalPlate component 1

C4 B1 additionalPlate component 2

C4 B2 — nominal component inventory

C4 B2 angle component 1

C4 B2 angle component 2

C4 B2 angle component 3

C4 B2 angle component 4

C4 B2 plate component 1

C4 B3 — nominal component inventory

C4 B3 angle component 1

C4 B3 angle component 2

C4 B3 angle component 3

C4 B3 angle component 4

C4 B3 plate component 1

C4 B4 — nominal component inventory

C4 B4 angle component 1

C4 B4 angle component 2

C4 B4 angle component 3

C4 B4 angle component 4

C4 B4 plate component 1

C4 W409 base plate

type w409 c4 section b1

type w409 c4 section b2

type w409 c4 section b3

type w409 c4 section b4

type w409 c4 column composition

type w409 c4 b1 angle profile

type w409 c4 b1 plate profile

type w409 c4 b1 additionalplate profile