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Rehabilitation of the Ituango Dam

Total Credits: 0.5 PDH

Technical Presentations
Robert M Cordova |  Richard First
30 Minutes
Audio and Video
Access for 6 month(s) after purchase.


The Ituango dam is an embankment dam that is currently under construction on the Cauca River near Ituango in Colombia. The largest hydroelectric power plant in Colombia’s history, the dam measures 720 ft (220 m) tall, will produce 2.4 gigawatts and will produce approximately 13% of Colombia’s energy.

Three, large diversion tunnels used to divert the water from the river around the construction site during construction collapsed as a result of heavy rainfalls. The nearly completed pump house had to be flooded to accommodate premature water build-up in the reservoir. These tunnels would need to be permanently sealed.

“Pre-stoppers” would need to be constructed in place to serve as bulk heads between which would ultimately be excavated and back-filled with concrete to permanently seal the tunnels. Additional to standard anti-washout properties, the grout had to withstand swiftly flowing water and exhibit an extended working time at temperatures above 32 degrees C. A custom grout was developed for this application. In the end, hundreds of grout micropiles were tremied, consuming more than 1,650 tons of grout, to produce the pre-stoppers to complete the remediation. The dam is currently scheduled for completion in 2023.

Learning Objectives:

  1. What the Ituango Dam is
  2. Why it was built
  3. What went wrong
  4. How Master Builders solutions supplied a material that met its critical requirements under extreme conditions


Robert M Cordova's Profile

Robert M Cordova Related seminars and products

Sr. Technical Product Specialist

Master Builders Solutions

Richard First's Profile

Richard First Related seminars and products

Sr. Technical Product Specialist

BASF Construction Systems

Rick First is Technical Service Lead at Master Builders Solutions. He has been in the concrete industry for over 30 years. Rick has worked for Degussa, BASF and Master Builders Solutions in a technical capacity specializing in Concrete Repair and Resinous Flooring. He has presented to local and national organizations related to concrete and concrete repair. 

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