Annotated image

Scope & Limitations

Drone-captured imagery of Pier 12 north face. Experimental analysis only; no structural conclusions.

Findings Summary

One long diagonal crack-like region detected with high experimental confidence. A spalling-like region was flagged as out-of-scope for the current model.

Findings summary

Sources

1. Concrete Crack Assessment Guide — CRS Internal, §3.2 Surface cracks (2025)
2. Visual Inspection of Concrete Structures — ACI 201.1R (sample excerpt), §4.1 Crack mapping (2008)
3. Drone-Assisted Façade Survey Methodology — CRS Internal, §2 Capture requirements (2025)
4. Human Review Protocol — CRS Internal, §1 Triage tiers (2026)