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  • Retaining Walls Supported in Sliding Soils – How to Prevent a Failure

    Retaining Walls Supported in Sliding Soils – How to Prevent a Failure

    Global Stability includes the stability of the soils BELOW the retaining wall. If the foundation soils are sliding on a sloping surface of bedrock, then the retaining wall could begin to slide downhill! This 2-minute video shows two ways to prevent this type of global stability failure. Joseph Kowalski, P.E. www.RetainingWallExpert.com Current State PE Registrations

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  • Versa-lok Retaining wall project Bay area

    Wood retaining wall had to come down after 40 years . Poor design, no drainage but hey it was 40 years ago… There are many factors that go into building a retaining wall. How tall should it be? Does it need to be engineered? Does the contractor have experience? We can take the guessing part out for you. At All Access we stand ready to serve you and answer any and all questions that may come up during the project. […]

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  • Retaining Walls – What is Global Stability?

    When dealing with retaining wall design, Global Stability means the stability of the soils above and below the retaining wall.  If the soil that supports a wall kicks out, and the wall shifts downhill, that is a Global Stability Failure.  This video is a short discussion of retaining wall global stability. Joseph Kowalski, P.E. www.RetainingWallExpert.com Current State PE Registrations

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  • Retaining Walls – Fence Required at Top?

    Retaining Walls – Fence Required at Top?

    Most building codes require a handrail or a fence if a wall is about 4 feet or higher.  So, what’s the best way to get your fence constructed without damaging the blocks or the geogrids? FOLLOW THIS LINK FOR PROJECT PHOTOS Joseph Kowalski, P.E. www.RetainingWallExpert.com Current State PE Registrations

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  • How to Build a Retaining Wall in 2 Minutes!

    How to Build a Retaining Wall in 2 Minutes!

    In this video, we will mass-excavate a jobsite, make a trench, add a drainage pipe, install gravel, place wall blocks, geotextile and compact lean clay cap soils to make a beautiful retaining wall … ALL IN UNDER TWO MINUTES! FOLLOW THIS LINK FOR PROJECT PHOTOS Joseph Kowalski, P.E. www.RetainingWallExpert.com Current State PE Registrations

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  • Shoring Wall with Segmental Block Face

    Shoring Wall with Segmental Block Face

    Pier walls and shoring walls can be constructed right up against a property line, because they are made of steel or concrete beams with wood or concrete lagging between the piers. But, these walls are not as attractive as a block retaining wall, so we engineered a way to attach the blocks to the shoring wall. The shoring wall is doing the work, the blocks on the front are just a veneer of block, stone and geogrids attached to the […]

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  • Retaining Walls as Bridge Abutments

    Retaining Walls as Bridge Abutments

    These two retaining walls are made of BIG retaining wall blocks. Each block weighs a couple thousand pounds! At this site in Ohio, we engineered these walls so that the bridge deck could be placed directly on top of the retaining walls. This saved the county money and opened up an important connector across the stream. FOR PROJECT PHOTOS CLICK HERE Joseph Kowalski, P.E. www.RetainingWallExpert.com Current State PE Registrations

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  • Gravity Retaining Wall Project with Redi-Rock

    Gravity Retaining Wall Project with Redi-Rock

    This 13.5-foot high gravity retaining wall was constructed using Redi-Rock blocks. This wall was an alternate bid on a project where a reinforced concrete wall was proposed. The engineering design, construction, and construction review services of this retaining wall saved the Owner money and resulted in a much more attractive wall than a simple, gray concrete wall. Joseph Kowalski, P.E. www.RetainingWallExpert.com Current State PE Registrations

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