Dam & Spillway

Dam & Spillway image

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