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Research Reports

Cathodic Protection Check-Out: SR 24, Yakima River Bridge


The cathodic protection system on the Yakima River Bridge on SR-24 near Yakima was evaluated for proper operation. Three out of six reference electrodes and rebar probes were found to be non-functioning. One temperature sensing thermistor was also found to be non-functional. All three deck zones were found to be receiving the proper cathodic protection current. Recommendations were made to continue the monitoring at regular intervals and maintain the present rectifier settings.


  • Date Published: November, 1986
  • Publication Number: WA-RD 87.2.1
  • Last Modified: August 20, 2007
  • Author: Ernest R. Telford.
  • Originators: ETCO Engineering Services, Inc.
  • # of Pages: 71 p., 1,598 KB (PDF)
  • Subject: Cathodic protection, Concrete bridges, Corrosion protection, Detection and identification system applications, Floors, Monitoring, Probes (Measuring devices), Reinforcing bars, Thermistors.
  • Keywords: Cathodic protection, SR 24, Yakima River Bridge No. 24/5, Yakima (Wash.)
  • Related Publications: Reinforced Concrete Bridge Decks: Yakima River Bridge No. 24/5, (WA-RD 87.2).
    Demonstration Project No. 34, Cathodic Protection for Reinforced Concrete Bridge Decks, Yakima River Bridge No. 24/5, (WA-RD 87.2.2).

This abstract was last modified April 29, 2008