Written for engineers: method, evidence, and where each approach stops working.
18 Jun 2026 · 9 min
Welded attachments on tension flanges continue to drive fatigue cracking in steel bridges built to codes that already prohibited them. A review of what inspection regimes keep missing.
02 May 2026 · 7 min
A single critical chloride content applied across binder types, moisture states and cover depths produces both premature repair and missed corrosion. What the data supports instead.
27 Mar 2026 · 6 min
Ground penetrating radar is fast, non-contact and frequently misapplied. Where congested reinforcement defeats it, and which methods to reach for instead.
11 Feb 2026 · 8 min
Flight altitude determines whether a 0.2 mm crack appears in your dataset. A practical derivation of capture parameters from defect acceptance criteria.
09 Dec 2025 · 11 min
Forensic sequence reconstruction depends on distinguishing primary fracture surfaces from secondary damage. Notes from three investigations.
22 Oct 2025 · 7 min
Fixed inspection cycles allocate the same effort to a culvert and a cable-stayed bridge. How consequence-weighted intervals change portfolio spend.
14 Aug 2025 · 6 min
Most instrumentation schemes produce data nobody interprets. Defining the decision threshold before selecting the sensor.
30 Jun 2025 · 8 min
Codes encode assumptions about workmanship, loading and maintenance. When a structure departs from those assumptions, compliance stops being the relevant test.