Avalon Structural Inc.
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Road Washout Repair
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.
(below) 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.
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.
Completed project. Design engineer: Patterson & Associates. Soils engineer: Dees & Associates. Avalon's final bill to Owner: $55,000. Job completed start to finish in 21 calendar days despite rain. Owner happy.
Another view of the finished project is shown below.
Avalon installed vertical and diagonal helix piers to support this section of road over poor soils.
Design engineer: Patterson & Associates. Soils engineer: Haro & Kasunich.