KHIA headerKnow-How in Action


Belzona® Protects Irrigation Culvert



Water / Wastewater (WATR)



Valves, Pipes and Fittings (VPF)


Customer Location:

Irrigation District - Wyoming, USA


Application Date:

March 2007


Application Situation:

Galvanized steel pipe used to carry 400 ft³/s of irrigation water.



Debris, sand, and silt carried by irrigation water wore through the galvanizing in one season. Left uncorrected, the underlying carbon steel pipe would quickly corrode leading to soil erosion.



Belzona® 5811 (Immersion Grade)
Belzona® 9331 (Reinforcing sheet)


Galvanized steel


Application Method:

Belzona® 5811 and Belzona® 9331 were applied in accordance with a modified Belzona Know-How System Leaflet VPF-2.


Belzona Facts:

Replacement of the damaged pipe would have cost $700,000 and taken considerable time to complete. The Belzona repair was conducted quickly in situ and saved the customer $650,000. Inspected after one season and found to be in excellent condition.


Photographs Description

  1. The galvanized culvert to be protected
  2. Belzona® 5811 being applied via airless spray
  3. The completed application
  4. Inspected after one season of operation
Case study pic one


 Case study pic two


 Case study pic three




For more information about Belzona visit: