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Deep Foundations
Foundation Repair
Foundation Replacement
New Basements
Helical Piles
Drilled Piers
Resistive Piers
Liquefaction Solved
Wind Turbine Foundations
with Helical Piles
Solar Panel Arrays
with Ground Screws
Pipeline Anchors
Airport FAA Projects
Bridge Abutments
Post-tensioned Concrete
More Commercial Projects
Retaining Wall Basics
Retaining Wall Fortification
Solving Limited Access
Using EPS Blocks
Using W-beams
Drainage Systems
Excavation & Drilling
Road Washout Repair
Road Fortification
Hillside Stabilization
Challenging Hillside
Additions & Patios
Landslide Repair
Impact Walls
Avalon Supports
the Famous Rockettes
Avalon builds waterproof rooms under existing homes.

In this example, we installed four 3 1/2 inch round shaft helical piers to support the interior of a 100-year-old Victorian with two stories, and then excavated around the helical piers.

These heavy duty helix piers provided shoring until the basement walls were built, after which they were removed.
CASE STUDY #71 (1 of 2)

Here is the sub-area before the new basement was installed.
CASE STUDY #71 (2 of 2)

Here is the completed basement. Along the wall on the right, Avalon employed shoring techniques that allowed the new retaining wall below to align flush with the existing stem wall above.
Avalon Structural, Inc.
181 Ridgeview Drive
Aptos, CA 95003
(831) 479-4389 (office)
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.