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Hayward Baker completes major highway scheme

Keller’s US business Hayward Baker has just completed geotechnical work on a 42 month upgrade on a 21km section of a highway in Dallas, Texas which one of the company’s biggest ever road projects.

Widening of Interstate Highway 635 – the busiest road in the Dallas area – called for large retaining structure which were designed and built by Hayward Baker for main contractor Ferrovial.

Hayward Baker developed an anchored solution to deal with the retained height and limited working space.

“Initially we had different design philosophies,” said Hayward Baker senior project manager Marty Schrantz. “But we have a lot of expertise of working in the expansive clays you find in this area. So, we did a test section to show that our anchors would work, that we could get the bonding capacities and that there wouldn’t be any long-term detrimental effects.”

In total Hayward Baker has installed over 450,000 linear metres of permanent soil and rock nails and tiebacks and over 120,000m2 of shotcrete for the retention systems.

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