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The following five pictures concern a road washout along steep hillside.
Owner had searched three years to find an affordable contractor. Before finding Avalon, his lowest bid was over $200,000 to repair the washed-out road.
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| For vertical support down into bedrock, Avalon employed 3.5" round shaft helix piers. These piers were then grouted. 1.5" square shaft helix were driven diagonally to tie road section to hillside.
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| The outboard grade beam has been poured. Cantilever platform in place, curb formed. Inboard grade beam helix and steel set, deck double mat steel set, ready for concrete.
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Completed Project
Avalon's final bill to Owner: $55,000. Job completed start to finish in 21 calendar days despite rain. Owner happy.
Design Engineer:
Patterson & Associates.
Soils Engineer:
Dees & Associates.
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| Another view of the finished project is shown below.
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(Different project from above) Avalon installed vertical and diagonal helix piers to support this section of road over poor soils.
Design engineer: Patterson & Associates. Soils engineer: Haro & Kasunich.
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| A typical minor road washout is observed at the right. Another contractor had proposed using a W beam retaining wall alongside the road, with wood.
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| Our solution at Avalon was less expensive, more certain, and longer lasting: use vertical helix piers and tiebacks with concrete. Avalon upgraded the culvert with a larger pipe and new inlet.
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Avalon Structural, Inc.
181 Ridgeview Drive
Aptos, CA 95003
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Phone: (831) 479-4389
Fax: (831) 479-0328
Email: roger@avalonstructural.com
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CA License 677116
Classifications: B, C-8
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