What is the design life expectancy of Standard Duckbill anchors?
Standard Duckbill anchors (68,88,138-DB1) should be considered only for temporary applications. The weak link of the Duckbill anchors is the stranded steel wire rope tendon. The aluminum anchor heads and swage sleeves also corrode, but at a slower rate than the steel cable, and they have more material “to loose” to corrosion before becoming critical. In Moderate soils they should be limited to two years or less of service.
