Seattle, Washington

Helix Steel was used to fully replace all of the #6 rebar cages in 53 piles.


Project Summary

Pier 57 is a Seattle waterfront location favored by tourists and locals.  It was lengthened to construct a 156 ft diameter Ferris wheel which opened in 2012. Helix® Micro Rebar™ reinforcement was incorporated into the project design to fully replace the #6 rebar cages inside 53 piles. This application allowed the owner significant reduction in material and labor cost.


A total of 980 yd3 of concrete were placed by Manson Construction, pumped by Conco Pumping with concrete supplied by Cal Portland of Seattle. There were 23,420 lb of Helix® Micro Rebar™ reinforcement added into the concrete at the batch plant that replaced all of the structural rebar cages.

Category:                 Infrastructure
Contractor:             Manson Construction
Location:                 Seattle, Washington
Application:           Pier Foundation

Original Design:  30” diameter piles, 8- #6 and #3@12’’ hoops 

Helix Dosage:       25 lb/yd3  and 31.5 lb/yd3









Increase in Shear Strength:               111 %

Increase in Modulus of Rupture:    40 %

Increase in Durability:                        45 %

Increased Speed of Construction:   4 Days

Reduction in Carbon Footprint:     40 Tons

 Infrastructure Projects

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