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Areas We Cover

With our HQ based in State College, Pa  we cover inspections all over the USA, while also servicing international inspections , including but not limited to:







Dominican Republic

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Dam and Spillway

Dams are complex structures that require frequent inspection by experts to ensure safe and uninterrupted service.  TKS performs inspection of spillway gates and other dam apparatus using a variety of NDE methods.

  • Shear-wave Ultrasonic Testing (UT) of Complete Joint Penetration welds

  • Conventional straight-beam UT of pins, bearings and trunnions

  • Magnetic Particle Testing (MT) of fillet welds

  • Magnetic Flux Leakage (MFL) of steel cables

  • Alternating Current Field Measurement (ACFM) of welds

  • Visual Inspection of weld rework on gates and stop logs

  • QA/QC of welding practices

WINS-NDT inspects to a variety of codes.  If you are unsure of the code compliance requirements, WINS-NDT’s ASNT Level 3 can provide suggestions or develop a procedure for your specific application.  Some examples of codes that govern the acceptance/rejection criteria of dam members are:

  • AASHTO/AWS D1.1/D1.1M – Structural Welding Code – Steel

  • AASHTO/AWS D1.5/D1.5M – Bridge Welding Code

  • ASTM E587 – Standard Practice for Ultrasonic Angle-Beam Contact Testing

  • ASTM E114 – Standard Practice for Ultrasonic Pulse-Echo Straight-Beam Contact Testing

  • ASTM E1571 – Standard Practice for Electromagnetic Examination of Ferromagnetic Steel Wire Rope

  • ASTM E2261 – Standard Practice for Examination of Welds Using the Alternating Current Field Measurement Technique

The LRUT technology is designed to detect the most costly rail flaws ~ head defects. Long range ultrasound travels axially in the rail at distances ranging from a few feet to a few hundred feet depending on the application.  Powerful ultrasonic waves are reflected from transverse defects and rail breaks when the longitudinally traveling wave strikes the discontinuity.


Long range ultrasound is generated efficiently in rail using non-contact electromagnetic acoustic transducers (EMATs).  The EMATs travel along the rail head and introduce pulses of ultrasound into the rail head.  The pulses flood the rail head with ultrasonic energy that reflect powerfully from transverse oriented rail flaws and discontinuities.  The ultrasound penetrates underneath surface shelling and engine burns to detect hidden transverse flaws that are commonly missed by tradition rail flaw inspection techniques. The analysis software is embedded with artificial intelligence capabilities. Pattern recognition classifiers are used to classify defects in real-time.  Each defect is tagged with  GPS coordinates for follow-up inspection and reporting purposes.