MAIN MENU       About Us Inspection Request Contact Information Glossary Careers at Avalon  FOUNDATIONS  Deep Foundations Helical Piles and Helical Tiebacks For Enginners: Typical Helical Specifications Drilled Piers Liquefaction Solved   FOUNDATION REPAIR   Underpinning Horizontal Cracks Foundation Replacement Resistive Piers Underpinning Done Right   COMMERCIAL PROJECTS   Mega Foundations with Helical Piles Solar Panel Arrays with Ground Screws Pipeline Anchors Bridge Abutments Post-tensioned Concrete More Commercial Projects   RETAINING WALLS   Retaining Wall Basics Retaining Wall Fortification Solving Limited Access Using EPS Blocks Using W-beams  EXCAVATION  & GRADING Excavation & Drilling Grading   SPECIAL HILLSIDE   ISSUES Road Washout Repair Road Fortification Hillside Stabilization Challenging Hillside Additions & Patios Landslide Repair Impact Walls   OTHER PROJECTS   Avalon Supports the Famous Rockettes		ROAD FORTIFICATION Special Hillside Issue CASE STUDY The road had begun to slip down the hillside and was falling apart with large cracks. Avalon fortified the road with drilled reinforced concrete piers, helical tiebacks and a reinforced concrete wall. Design Engineer:Bob Patterson, Patterson & Associates. In this picture, Avalon is lowering reinforcing steel into deep drilled holes which will be poured with concrete to form drilled piers. Here is a row of drilled piers ready for concrete. Tiebacks are installed to grip deep into the hillside, for lateral support. The rim of the fortification is ready to be poured, firmly attaching the drilled piers to the tiebacks. The road is now stable; the road fortification is complete. The edge of the road is now supported vertically with drilled piers, and the entire width of the road is supported laterally by helical tiebacks. Avalon Structural, Inc. 181 Ridgeview Drive Aptos, CA 95003 (831) 479-4389 (office) info@avalonstructural.com Copyright © 2015 Avalon Structural, Inc. All Rights Reserved CA License 677116 Classifications:  B, C-8 Avalon is a general building contracting firm and does not employ engineers.