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)Object: C4 W409 base plate
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.
40 in
Source audit state: checked-master-crop.
Drawing notation: BASEMENT; 1′6″; TOP OF BASE PL.; B 40; L 53; T 5[fraction unresolved]
Calculated from: w409-E01-baseplate-b
53 in
Source audit state: checked-master-crop.
Drawing notation: BASEMENT; 1′6″; TOP OF BASE PL.; B 40; L 53; T 5[fraction unresolved]
Calculated from: w409-E01-baseplate-l
Numeric value unresolved
Source audit state: fraction-not-resolved; do-not-use-adjacent-row.
Drawing notation: BASEMENT; 1′6″; TOP OF BASE PL.; B 40; L 53; T 5[fraction unresolved]
-18 in
Arrow endpoints and sign locally audited for C4 only. Source audit state: checked-master-crop.
Drawing notation: BASEMENT; 1′6″; TOP OF BASE PL.; B 40; L 53; T 5[fraction unresolved]
Calculated from: w409-E01-baseplate-offset
78.75 ft
Drawing datum; not a surveyed elevation. Resolves top surface reference only. Source audit state: calculated-from-source-references.
Drawing notation: BASEMENT; 1′6″; TOP OF BASE PL.; B 40; L 53; T 5[fraction unresolved]
Calculated from: frame-basement-schedule-finish, first-column-c4-baseplate-offset
Numeric value unresolved
The plan distinguishes E and E′. Do not use footing offset E as column-to-base-plate offset E′. Source audit state: companion-detail-required.
Drawing notation: TYPICAL BASE PLATE FOR EXTERIOR COLS.; E; FOR E′ SEE SH. 411
Source inventory is separate from the floor filters above. Select one drawing to inspect it; no drawing set is preloaded.