Failing Retaining Wall Pushing Building

Posted in: Wall Failures
In Cincinnati, Ohio we have our fair share of retaining wall failures: due to poor construction, poor design, or sometimes just age!  In this case, a number of factors contribute to a failing retaining wall that is literally shoving a building sideways!

Photo of failing old stone retaining wall pushing building sideways!
At this location, a natural stone retaining wall was constructed outside an apartment building.  The foundation walls of the apartment building and this stone retaining wall are supporting the land adjacent to them.

However, at some point in the past another retaining wall was added above!  This additional retaining wall was constructed just a few feet away from the apartment building.  The nearby wall is about 6 feet high, and adds a huge amount of loading to the basement/foundation wall and to the natural stone wall.

The basement wall is being held in place at the front of the building and at the middle of the building, because there are walls at a 90-degree angle to the basement wall.  Those walls are supporting the basement wall.

However, at the rear, where there are openings for the garage doors, there is little support.  The top of the garage doors has been shifted a few INCHES sideways, and the back wall of the apartment building is bulging outward.  Even the old stone wall is being pushed outward.

The owner is currently exploring options for repair!

Jet Filter System

Posted in: Jet Filter System

Jet Filter Components
Retaining walls are failing daily in all parts of the world due to the lack of proper erosion control. The JET FILTER prevents seawall failure by relieving pressure and allowing drainage while saving time & money on extensive repairs. The JET FILTER relieves the hydrostatic pressures created by rain water as well as tidal surges trapped behind erosion control structures such as:

        • Seawalls
        • Bulkheads
        • Retaining Walls
        • Sheet Piling
Because of its unique design, the Jet Filter allows water behind walls to escape, but retains the soil.

For more information contact:

Mr. David Gentry
Blue Marlin Marine Solutions
PO Box 31
Casey, Illinois  62420

Jet Filter Installed in Sheetpile Wall to Relieve Water Pressure

Retaining Wall Failure - San Antonio TX

Posted in: Wall Failures

Retaining Wall Failure in San Antonio, Texas

This past Sunday (January 24, 2010) a large retaining wall failed in a San Antonio, Texas subdivision.   Initially 80 homes were evacuated when crevices up to 15 feet deep appeared after the 1000-foot long retaining wall failed.      READ MORE .....

Download attachment(s): [ Aerial View of Terrain ] [ Collapse-diagram-012610.jpg ]

Allan Block 90-Degree Corner

Posted in: How-To Videos, Allan Block, VIDEOS

  Have you ever tried to construct a 90-degree bend using Allan Blocks and wondered where to make the saw cut?


 THIS VIDEO SHOWS YOU HOW!  Take a minute and learn how to make PERFECT 90-degree outside corners with Allan Block.    READ MORE ....

Drilled Pier Walls

Posted in: VIDEOS

Rock Anchors and Moving Mountains

Posted in: Large Block Systems, Monster Walls

PDF showing rock anchors for Costco, St. John's, NB, Canada
 What began as simply "moving a mountain" quickly became an engineering challenge.  The task: find a safe way to quickly and safely anchor the bottom of a 7-meter high retaining wall from falling off a 10-meter high cliff onto the heavily-travelled roadway below!  Canada, here we come!

Because excavating solid bedrock in New Brunswick, Canada, was prohibitively expensive, we assisted the design engineer in developing rock anchors for the lowest region of the MSE retaining wall on the top of a rock outcrop.                 READ MORE ...

Fences Down Under

Posted in: Fence Systems
 We received this question from West Perth, Australia. How close can you excavate for a new wall near existing fence posts?

From: Frederick 
Sent: Thursday, April 16, 2009 4:00 AM
Subject: wall question

Hey guys, I just found your website and its great.
I need to build a retaining wall in my back yard but the neighbouring fence is five feet higher than the ground level, how do I build the retaining wall without the fence falling down?
thanks guys
Frederick in West Perth WA 6005
We'd be glad to help with your wall project.  By the way, I've got some relatives in Australia, but they live near Adelaide!  My wife visited a number of years ago, and my father-in-law usually travels there about every 2 years, and spends a few weeks traveling from Perth to Sydney.
Anyway, back to your wall question ..... Read More ...

Advertise with us!

Posted in: Advertise Here, CONTACT US, Membership info



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Radio Show March 21 2009

Posted in: Advertise Here

Thank you Gary Sullivan, 55KRC (550AM), and Executive Producer Joe Strecker!  During the "At Home With Gary Sullivan" Show on March 21st we answered retaining wall questions from across the U.S. from 10 a.m. to 12 noon.    What a real treat - thanks, guys!

If you'd like to download the podcasts, click here:


Gary Sullivan and Joe Kowalski at 55KRC

Steep Reinforced Soil Slope

Posted in: VIDEOS

A Reinforced Soil Slope (RSS) is a very steep soil slope that uses geogrid to allow the slope to be steeper than nature will normally allow.