RetainingWallExpert.com

Constructing a Retaining Wall on Sliding Soils

Mon, 09 Nov 2015 16:11:22 PST

The old retaining wall (which failed) was constructed on soils that were sliding downhill! The rock was too deep to put the new retaining wall on the bedrock, so we drilled piers down to the bedrock to stop the hill from sliding and to support the new retaining wall.

This video shows you how to prevent a retaining wall failure when there are sliding soils!

Link to Photos of this project

Joseph Kowalski, P.E.
www.RetainingWallVideos.com
Current State PE Registrations

Tiered or Merged Retaining Walls?

Tue, 04 Feb 2014 15:00:57 PST

When one retaining wall is constructed above another retaining wall, the two walls together are called a Tiered Wall System. Tiered walls look like this:

When dealing with tiered walls, a retaining wall contractor will ask:

How far apart are the walls?
How high are the walls?
Are they really two separate, independent walls?
Do the two tiers of wall join and become one (merged) wall?
READ MORE ...

Retaining Wall Block Tolerance

Sat, 18 Jan 2014 17:19:59 PST

This short article discusses retaining wall block tolerance: what it is, what are the limits, and what happens when blocks are manufactured "out of tolerance".

Segmental retaining wall blocks do not use mortar. They are simply stacked one upon another. Sometimes there are grooves, or lips, or pins or clips that align the blocks. However, the blocks always rest one upon another.

Our past videos (like this one) and articles discuss the critical importance of getting your first row of blocks perfectly level. The blocks must be level front-to-rear and side-to-side. A perfectly level first-row of blocks will help make wall construction fast! Unless .... the blocks are out of tolerance!

When blocks are "out of tolerance" it means that one side of the block is higher or lower than the other side. You can see that this can cause big problems for these reasons ... Read More...

Stone Strong Retaining Wall Installation

Fri, 17 Jan 2014 19:53:16 PST

Retaining Wall Design Contracts

Fri, 13 Dec 2013 12:22:02 PST

Obviously, retaining wall design involves contracts. These contracts between the Engineer and the Client are important. Does the contract benefit both parties? Is using contracts a win-win?

Contracts are important to:

1. Memorialize everyone's understanding of each party's roles and responsibilities;

2. Reach a mutual understanding of the project requirements;

3. Establish the rules to which the parties will adhere; and,

4. To identify and allocate risk fairly.

A good contract fairly allocates reasonable risk to both parties, based on the benefits of the project to each party.

Here's an example of fair allocation of reasonable risk: when the contract includes a Limitation of Liability for the Engineer. Why, you might ask, am I limiting the Engineer's liability and how is that fair?

Well, here's how it is fair: The Engineer doesn't demand an Unlimited Fee. With an unlimited fee comes unlimited liability. With a limited fee there is limited liability.

Sounds fair to me. What do you think?

SmartSlope

Tue, 08 Mar 2011 22:02:53 PST

SmartSlope Living Wall

Every once in a while, a truly fantastic product comes along. SmartSlope is one of those products! The benefits include: excellent block dimension tolerance, a 100% mechanical connection to the reinforcement, a huge pocket for holding soils, the ability to batter at 20 degrees or flatter, and the ability to install drip irrigation lines directly into the block!

Here's a video about the system:

So, we are talking about the Living Wall: the most environment-friendly block on the market and the only block with a true 100% mechanical, verifiable connection.

For more info see SmartSlope.com

Retaining Walls: What is Global Stability?

Mon, 07 Mar 2011 07:27:51 PST

Global Stability is the stability of the hillside ABOVE and BELOW a retaining wall. By it's very existence, a retaining wall changes the shape of a hillside. These changes should be addressed by the Engineer and Contractor to determine if the hillside is stable. Take a look at these sketches, photos and video:

Retaining Wall Failure and Rebuild 6041

Sun, 30 Jan 2011 17:07:32 PST

Retaining Wall Failure: upper portion collapsed

When this 38-foot high retaining wall failed, Kowalski Engineering was retained to help. Our services included determining what caused the failure, redesigning the new retaining wall, and reviewing the new wall's construction.

Many of the retaining wall blocks were reused on the project - demonstrating that these blocks are extremely durable, even after being dislodged from such a height. You see, the large and durable block facing was not the problem.

Retaining Wall Failure: upper portion collapsed

The problems were: the type of soil used during construction, the spacing of the geogrids, and (you guessed it) water. Remember this recipe for failure: "Just Add Water".

Good design and good construction will account for the "added water" and a retaining wall will be quite stable. We engineered the new retaining wall and reviewed its construction.

Retaining Wall Rebuilt

SEE OUR INTERACTIVE PROJECT LOCATION MAP:

View Retaining Wall Expert Projects Map in a larger map

Failing Retaining Wall Pushing Building

Fri, 21 Jan 2011 17:30:00 PST

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

Sat, 08 Jan 2011 21:42:48 PST

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
dgentry@jetfiltersystem.com
239.825.4508

Jet Filter Installed in Sheetpile Wall to Relieve Water Pressure

Retaining Wall Failure - San Antonio TX

Tue, 26 Jan 2010 13:07:03 PST

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 .....

Allan Block 90-Degree Corner

Thu, 21 Jan 2010 11:22:52 PST

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

Wed, 28 Oct 2009 09:29:26 PST

Rock Anchors and Moving Mountains

Tue, 27 Oct 2009 11:22:36 PST

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

Thu, 16 Apr 2009 08:43:02 PST

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
To: JoeK@RetainingWallExpert.com
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
_______________________________________________________________

Frederick,

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 ...

Radio Show March 21 2009

Tue, 24 Mar 2009 21:01:23 PST

AT HOME WITH GARY SULLIVAN SHOW!

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:

AT HOME WITH GARY SULLIVAN, MAR 21

Gary Sullivan and Joe Kowalski at 55KRC

Steep Reinforced Soil Slope

Wed, 04 Mar 2009 13:36:17 PST

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.

Gslope Slope Stability Software

Wed, 04 Feb 2009 16:56:31 PST

A complete retaining wall design analyzes wall stability and Global Stability. One of our recommended software programs for global stability is Gslope!

GSLOPE allows geotechnical engineers to carry out limit equilibrium slope stability analysis of existing natural slopes, unreinforced man-made slopes, or slopes with soil reinforcement. The program uses Bishop’s Modified method and Janbu’s Simplified method. GSLOPE allows either method to be applied to circular, composite, and non-circular surfaces.

Retaining Wall with No Stone Drainage Column?

Mon, 19 Jan 2009 12:15:15 PST

This video shows an innovative design of a large retaining wall with no stone drainage column.

Fred Creek Wall in Tulsa, Oklahoma

Mon, 05 Jan 2009 06:39:12 PST

When the natural banks of Fred Creek, a storm water runoff channel near the campus of Oral Roberts University (ORU) in downtown Tulsa, began eroding and threatening the stability of the banks and associated utilities, the city needed to stabilize the stream banks while providing an attractive green area for jogging trails and parks...

Strata Systems

Thu, 18 Dec 2008 13:20:23 PST

Strata Systems has extensive experience with retaining walls of all types. Strata systems geogrid products have been proven in many installations throughout North America with a broad variety of modular block facings.

Keystone Century Wall Units

Thu, 18 Dec 2008 11:10:22 PST

Keystone Century Wall is a dry stacked yet mechanically connected wall that evokes the old world charm of a mason crafted structure. Random and rugged yet blended with color and character, these high strength concrete modules appear as natural stone, but have the latest built-in technology of the Keystone pin assured connection. Designed specifically for taller wall structures and heavy loading conditions, Keystone Century Wall blends the distinctive look and character of natural stone with structural integrity that lets you build with confidence.

Keystone Standard Unit

Thu, 18 Dec 2008 09:46:24 PST

The Keystone Standard Unit is an American original. What started the industry is still the industry leader. Its height-to-depth ratio delivers a structurally sound, engineered wall system with superior construction stability, durability, and strength. The choice for tall walls and critical structures.

Reinforced Soil Slope at Lowes

Thu, 18 Dec 2008 01:20:50 PST

This video discusses the innovative design of a 44-foot high geogrid Reinforced Soil Slope with a concrete face at Lowe's Home Improvement that used some lime-treated lean clay soils within the geogrid zone.

Stone Strong System

Wed, 17 Dec 2008 13:29:52 PST

Stone Strong is so revolutionary; you'll save your customers a lot of money, including a dramatic reduction in labor and excavation costs. Which means you'll blow competing bids out of the water.

Monster Walls Keystone Century

Wed, 17 Dec 2008 13:22:46 PST

This monster retaining wall video discusses the use of Keystone Century blocks and Strata Grid in a 37 feet high wall that needed to withstand loads from parking structures and have ramp accessibility.

Keystone Compac Unit

Tue, 16 Dec 2008 08:28:58 PST

The Keystone Compac Unit is the perfect choice where the deep embedment length of the Standard unit is not required. An installer's favorite, its lighter weight and shorter tail design makes it easy to handle for smaller walls.

Keystone Elite133 Series

Wed, 10 Dec 2008 10:56:26 PST

Keystone 133Elite

The forward-thinking design of the new Keystone 133Elite™ combines great looks with an exciting new way to increase efficiency. The Keystone 133Elite is perfect for large wall applications. Its 8” x 24” face dimension creates a larger-scale look, aesthetically matching the larger wall look and feel, while reducing the number of units required to complete the job. Never before have wall designers had so much flexibility in creating the perfect appearance for their Keystone wall. In addition to conventional textures, Keystone’s patented StoneArt™ embossing technology can produce units with specially designed natural textures- in combination with the wide variety of colors available in most Keystone products. The Keystone 133Elite can satisfy a wide array of design requirements from corners to sweeping curves. The Keystone 133Elite is simply the best combination of strength, beauty, and efficiency on the market.

Attaching Fencing to Caps--Right or Wrong?

Thu, 04 Dec 2008 07:16:44 PST

We recently got an email asking: What is the best way to attach a vinyl fence to the top of an Allan block wall?

Our answer was: Don't, if you don't have to.....but it has been successful in the past.....(Read Full Article)

Allan Block Europa Collection

Wed, 03 Dec 2008 13:35:29 PST

The Allan Block Europa series is Allan Block's newest offering to the retaining wall industry. The series builds from the dependability and performance of the original Allan Block Collection and adds European stylings and rough hewn stone appearances that provide classical aesthetics to any landscape.

Allan Block Collection

Wed, 03 Dec 2008 08:06:02 PST

The Allan Block Collection features blocks that have been used by landscapers, wall builders, and homeowners for years. They're easy to work with and yield great looking walls with nice finishes for many needs.

Retaining Walls as Bridge Abutments

Sat, 15 Nov 2008 12:35:01 PST

This video shows two Redi-Rock retaining walls as aesthetically pleasing abutments for a county bridge replacement in a Nature Preserve Area in Clermont County, Ohio.

Segmental Blocks attached to Pier Wall

Sat, 15 Nov 2008 08:21:32 PST

This video shows MESA segmental retaining wall blocks attached to a soldier pile wall to createa nice appearance and hide the soldier pile retaining wall.

Happy Halloween-Don't Let Retaining Wall Failures Haunt You

Fri, 31 Oct 2008 12:54:42 PST

Retaining Wall failures are nothing to laugh about. They can cost the wall builder, the engineer, and the client thousands of dollars.

Temporary Soil Enforcement

Wed, 22 Oct 2008 05:35:11 PST

Temporary soil enforcement supports heavy dynamic loading during construction of grade separation retaining walls.

"Geogrid reinforcement supports a temporary retaining wall and keeps trains running in two-stage construction of a rail grade separation..."

Redi-Rock of Northwest Ohio-Sandusky Township Cemetery Wall

Wed, 22 Oct 2008 04:47:03 PST

Sandusky Township Cemetery Wall

"The existing wall at the cemetery was an old poured concrete wall that had decades of wear and tear and cracking..."

Redi-Rock of Northwest Ohio - 10 Mile Creek Wing Walls

Tue, 21 Oct 2008 07:01:33 PST

"The original plan was to use gabion baskets....but....Redi-Rock was called upon..."

US Fabrics Inc

Thu, 16 Oct 2008 12:38:22 PST

Welcome to US Fabrics!

US Fabrics is a geosynthetic products company specializing in geotextiles, geogrids and geomembranes. Whether you're a distributor, contractor, engineer or a homeowner, our knowledgeable staff is here to help.

Power Equipment for Retaining Wall Construction

Mon, 13 Oct 2008 12:43:59 PST

Power tools and heavy equipment are an integral part of the wall building process. These various machinery and tools will be needed to complete your segmental retaining wall.

Outdoor Environments

Sun, 12 Oct 2008 10:56:23 PST

"Ten years ago I hired Scott to build our first Allan Block retaining wall. Since then he has been installing an average of two walls a week without any problems. Outdoor Environments and Allan Block have been an excellent fit for our company."
- Rick Sievers (Project Manager, The Drees Company)

Hand Tools for Retaining Wall Construction

Fri, 10 Oct 2008 09:08:54 PST

Hand tools are an integral part of the wall building process. These tools will be needed to complete your segmental retaining wall.

Fredericks Landscaping

Tue, 07 Oct 2008 06:41:47 PST

Created in 1977 by Fred Hollmann Fredericks Landscaping is a dynamic design build landscape construction and maintenance company...

KY Board-Unlicensed Practice of Engineering

Tue, 30 Sep 2008 06:41:44 PST

On July 29, 2008 the Kentucky Board of Engineers and Land Surveyors issued a letter to all Kentucky Governmental Agencies and Organizations outlining concerns over Landscape Architects performing engineering design services on segmental retaining walls.

*The Kentucky Board of Licensure for Landscape Architects has posted a rebuttal to this letter. We will post their rebuttal (and our opinions on this issue) shortly ... stay tuned.

Construction Review Services

Mon, 29 Sep 2008 12:16:02 PST

Construction Review is the most important part of segmental retaining wall construction. It protects the owner, design engineer, contractor and insurance companies from improper wall construction. (Note: This video is longer than most others.)

Sand and Glacial Till Soil

Thu, 25 Sep 2008 17:27:16 PST

This short video briefly shows a gray, very stiff undisturbed sandy, silty clay (Glacial Till) in Ohio at the base of a retaining wall being constructed. Also, we discuss why sand is such a good material for use in the geogrid reinforced zone of a segmental retaining wall.

Retaining Wall Excavation and Base Preparation

Thu, 25 Sep 2008 16:44:36 PST

This video shows the site excavation and base preparation for a segmental retaining wall. The base of the entire geogrid zone should be cleaned of soft soil material prior to wall construction.

Leveling Pad Installation for Segmental Retaining Walls

Thu, 25 Sep 2008 16:11:29 PST

This video shows how to install the leveling pad stone for a segmental retainining wall. Dense grade aggregate (DGA) is placed on a stiff clean soil base and compacted with vibratory plate compactor.

Base Course Installation for Segmental Retaining Wall

Thu, 25 Sep 2008 15:47:27 PST

The first row of blocks for a segmental retaining wall is called the base course. The installation of the base course is crucial for a good looking retaining wall. This video shows you how to properly install the base course.

Retaining Wall Layout and Surveying

Wed, 24 Sep 2008 17:44:56 PST

This video shows some basic things to consider when surveying (or laying out) your segmental retaining wall.

Sleeve-It Fence System

Fri, 19 Sep 2008 14:04:40 PST

In our video "Fence Posts & Floods we show how improperly installed fences damage retaining walls. Additionally, we should consider the safety and stability of the fence itself and the safety of people relying onthe fence! We've learned about a product that greatly improves the safety and stability of fences.

Take a look at the Sleeve-It System

MORE FENCE VIDEOS COMING SOON!

Retaining Wall with Box Culvert

Thu, 18 Sep 2008 16:52:12 PST

This video considers rapid drawdown and preventing soil loss when designing a retaining wall around a box culvert.

Retaining Walls-Fence Posts and Floods

Wed, 17 Sep 2008 16:15:49 PST

This video discusses improper fence installation, how to place guardrails near a retaining wall, and techniques to protect walls from streams.

Retaining Walls With Large Drainage Structures

Wed, 17 Sep 2008 13:45:00 PST

This video discusses a retaining wall design that incorporates large drainage structures within the reinforced zone to allow for drainage from the stream above.

Large Gravity Wall

Tue, 16 Sep 2008 11:45:50 PST

This video discusses the advantages of a Redi-Rock gravity retaining wall in comparison to walls with geogrid and to reinforced concrete cantilever walls.

Planning, Bidding and Constructing Your Wall

Tue, 16 Sep 2008 11:10:25 PST

Retaining wall video discusses planning, bidding, and constructing retaining walls with the help of design professionals.

Annual Inspection

Sat, 13 Sep 2008 15:58:04 PST

It is very important to annually review walls for settlement, deflection, bulging, cracks or other signs of early trouble.

Retaining Walls at Eagles Cliff

Sat, 13 Sep 2008 08:34:02 PST

In North Bend, Ohio this viewing platform created by tiered retaining walls is wheelchair accessible and provides incredible views of the Ohio River Valley.

Parking Barrier at Top of Redi-Rock Wall

Sat, 13 Sep 2008 08:20:52 PST

Using the free-standing blocks of the Redi-Rock system, we were able to create a stout parking barrier at the top of these retaining walls.

Stratagrid Holding Up a Car

Fri, 12 Sep 2008 08:50:13 PST

This video demonstrates how geogrid works by supporting an SUV on a small simple cube of gravel!

Allan Block Ashlar Blend

Mon, 08 Sep 2008 12:19:35 PST

AB Ashlar Blend^® Pattern

Features:

Blended Beauty
Elegant and Unique
Variety of Patterns

Approximate Specifications:

By combining different styles of blocks,
you can build beautiful blended patterned walls.

Let Us Know What You Need!

Mon, 08 Sep 2008 10:35:02 PST

At RetainingWallExpert.com we improve the quality
and quantity of our information every day
with the help of viewers like YOU! Send us your retaining wall questions or ideas.

ASK A QUESTION - REQUEST INFORMATION - NEED A VIDEO?

Thank you!

We Want Your Ideas

Mon, 08 Sep 2008 10:33:06 PST

Thank you!

Allan Block 12-Degree Block

Sun, 07 Sep 2008 12:17:13 PST

AB Stones

Features:

12° setback delivers
maximum performance
Built-in drainage,
interlock and engineering
The fastest stacking
full size block available

Approximate Specifications:

Dimensions:8 in. H x 12 in. D x 18 in. L
(200 mm H x 305 mm D x 460 mm L)
Set Back: 12° from vertical
Weight: 75 lbs. (34 kg)
Options: Capstone, Corner Block
Colors: Each Allan Block manufacturer offers their own unique color selections.

Retaining Wall Expert Contractors

Sat, 06 Sep 2008 13:15:07 PST

A large percentage of wall failures happen because of improper wall building techniques. These contractors are trusted by RetainingWallExpert.com to build your wall properly and in a timely manner. Please contact any of them for a bidding quote.

Allan Block Jumbo Junior

Sat, 06 Sep 2008 12:24:40 PST

AB Jumbo Junior

Features:

Perfect for small to mid-size walls
Great for tight curves and smaller spaces
Unlimited landscape

Approximate Specifications:

Dimensions:8 in. H x 9.5 in. D x 9 in. L
(200 mm H x 240 mm D x 230 mm L)
Set Back: 6° from vertical
Weight: 35 lbs. (16 kg)
Options: Capstone, Corner Block
Colors: Each Allan Block manufacturer offers their own unique color selections.

Allan Block 6-Degree Block

Sat, 06 Sep 2008 12:13:05 PST

AB Classic

Features:

6° setback provides perfect
fit and finish
Built-in drainage,
interlock and engineering
Easy to install

Approximate Specifications:

Dimensions:8 in. H x 12 in. D x 18 in. L
(200 mm H x 305 mm D x 460 mm L)
Set Back: 6° from vertical
Weight: 75 lbs. (34 kg)
Options: Capstone, Corner Block
Colors: Each Allan Block manufacturer offers their own unique color selections.

Allan Block 3-Degree Block

Sat, 06 Sep 2008 10:57:42 PST

AB Three

Features:

3° setback for a near vertical solution
Built-in drainage, interlock and engineering
The best choice when space is a premium

Approximate Specifications:

Dimensions:8 in. H x 12 in. D x 18 in. L
(200 mm H x 305 mm D x 460 mm L)

Set Back: 3° from vertical
Weight: 75 lbs. (34 kg)
Options: Capstone, Corner Block
Colors: Each Allan Block manufacturer offers their own unique color selections.

Send us YOUR Ideas!

Fri, 05 Sep 2008 14:28:03 PST

Thank you!

Allan Block Lite Stones

Fri, 05 Sep 2008 12:28:03 PST

AB Lite Stones

Features:

Ideal for long low walls and long borders
Strong horizontal lines
Easy to handle

Approximate Specifications:

Dimensions:4 in. H x 12 in. D x 18 in. L
(100 mm H x 300 mm D x 460 mm L)
Set Back: 6° from vertical
Weight: 35 lbs. (16 kg)
Options: Capstone, Corner Block
Colors: Each Allan Block manufacturer offers their own unique color selections.

Allan Block Junior Lite

Thu, 04 Sep 2008 12:30:26 PST

AB Junior Lite

Features:

Ideal for planters and borders
Lightweight

Approximate Specifications:

Dimensions:4 in. H x 12 in. D x 9 in. L
(100 mm H x 305 mm D x 230 mm L)
Set Back: 6° from vertical
Weight: 23 lbs. (10 kg)
Options: Capstone, Corner Block
Colors: Each Allan Block manufacturer offers their own unique color selections.

Allan Block Caps & Corners

Wed, 03 Sep 2008 12:33:32 PST

Caps and Corners

AB Caps

Dimensions:4 in. H x 12 in. D x 18 in. L
(100 mm x 305 mm x 460 mm)
Weight: 55 lbs (25 kg)

AB Corners (available in right and left hand)

Dimensions:8 in. H x 8 in. D x 16 in. L
(200 mm x 200 mm x 405 mm)
Weight: 50 lbs (23 kg)

Soldier Pile Wall with Tiebacks

Mon, 21 Jan 2008 13:38:16 PST

Soldier Pile walls with Timber Lagging are used when there is no room for excavation or when making the excavation would be unsafe. Steel beams are inserted into an open cylindrical excavation, then filled with concrete. Later, the excavation can be made from the top downward without affecting the adjacent property.

Retaining Wall Failure Caused by Water

Mon, 21 Jan 2008 13:32:28 PST

This video shows a retaining wall that is failed only where downspouts from a building are drained into the ground right behind the wall!

Need a Preliminary Design?

Mon, 21 Jan 2008 12:11:26 PST

Having a preliminary design is crucial for an accurate bid on every geogrid wall. A preliminary design will result in accurate quantities for block, geogrid, soil volumes, excavation lengths and more. Be confident that your bid is accurate, tight and most importantly - profitable. 48-hour turnaround guarantee!

What is geogrid?

Wed, 16 Jan 2008 10:34:58 PST

Geogrid is:

"A geosynthetic material consisting of connected parallel sets of

tensile ribs with apertures of sufficient size to allow strike-through

of surrounding soil, stone, or other geotechnical material."

- from Designing With Geosynthetics, Robert Koerner, 1998.

Continue to article for more ....

How does geogrid work?

Wed, 16 Jan 2008 10:05:30 PST

This video demonstrates how geogrid works by supporting an SUV on a small simple cube of gravel!

Contact Us!

Tue, 01 Jan 2008 12:03:49 PST

Feel free to contact us at:

Joseph W. Kowalski, P.E.

3710 Section Road
Cincinnati, Ohio 45236

JoeK@RetainingWallExpert.com

513-403-5657

Legal Disclaimer

Sat, 01 Dec 2007 08:16:32 PST

Terms & Conditions

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(a) You may view, print or download any content, graphic, form or document from the Site so long as such activity is for Your own personal and non-commercial use. You may not modify, copy, transmit, display, perform, reproduce, license, publish, distribute, assign, sublicense, sell, or create a derivative work from or make other use of the content of this Site. No part of any content, form or document accessible at this Site may be reproduced in any form or incorporated into any information retrieval system, electronic or mechanical, other than for Your personal use. The authorization granted does not include any transfer of title.

(b) Your activities on the Site shall not: (i) violate any law, statute, ordinance or regulation (including, but not limited to, those governing export control, consumer protection, unfair competition, anti-discrimination or false advertising); (ii) contain or subject this Site to any virus, Trojan horses, worms, time bombs, cancelbots, easter eggs or other computer programming routines that may damage, detrimentally interfere with, surreptitiously intercept or expropriate any system, data or personal information; (iii) create liability or cause Us or our affiliates to lose (in whole or in part) the services of its ISPs or other suppliers; or (iv) modify or alter any part of this Site, including, without limitation by (A) providing a link directly or indirectly to any other site from this Site or (B) modifying or altering any material on this Site.

(c) Without our express prior approval, You shall not post or transmit through the Site any material which contains advertising or any solicitation with respect to products or services. You shall not use the Site to advertise or perform any commercial solicitation, including, without limitation, the solicitation of users to become subscribers of other on-line information services competitive with the Site.

(d) We reserve the right, in our sole discretion and judgment, and without liability of any kind to You, to terminate, change, or suspend Your access to the Site for any reason, at any time, without notice.

5. Linking to the Site. Except as provided in this Section 5 below, all links from Your web site to the Site must receive our prior written approval. Notwithstanding the foregoing, we hereby consent to links from Your web site to the Site which: (a) the limited purpose is to promote our goods and services; (b) only link to the homepage of the Site and not to “deeper” pages or graphics of the Site; (c) do not use any of our trademarks or logos for the form of the link or otherwise; (d) do not suggest an affiliation with or endorsement by Us of You or Your products or services; (e) do not place the Site in a frame within Your web site when the link is activated; and (f) do not cause confusion with, dilute, or damage our reputation or goodwill or any of our goods or services, as determined by Us in our sole discretion. We reserve the right to terminate the above consent at any time in our sole discretion.

6. Editing, Deleting and Modification. We have the right, in our sole discretion, but not any obligation, to refuse to post, modify or remove any material submitted to or posted on the Site and to terminate, change, or suspend any aspect of the Site at any time. Without limiting the foregoing, we have the right to remove any material that we in our sole discretion, find to be in violation of any provision hereof or otherwise objectionable in our sole discretion.

7. Indemnification. You agree to indemnify, defend and hold harmless Us, our affiliates, and our respective directors, officers, employees, and agents from any liability, loss, claim and expense, including without limitation, reasonable attorney's fees, related to Your violation of these Terms of Use and/or Your use of the Site.

8. No Warranty and Disclaimer of Liability.

(a) THE INFORMATION AND MATERIALS PROVIDED FROM, AT OR THROUGH THIS SITE ARE PROVIDED "AS IS," "AS AVAILABLE," AND ANY AND ALL WARRANTIES, EXPRESS OR IMPLIED, ARE DISCLAIMED, INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE INFORMATION AND MATERIALS PROVIDED AT THIS SITE OR THE SITE ITSELF MAY CONTAIN ERRORS, PROBLEMS OR OTHER LIMITATIONS. NEITHER WE NOR OUR AFFILIATES SHALL HAVE ANY LIABILITY WHATSOEVER FOR YOUR USE OF THIS SITE OR ANY INFORMATION OR MATERIALS PROVIDED AT THIS SITE.

(b) NEITHER WE NOR OUR AFFILIATES SHALL BE LIABLE TO YOU FOR ANY LOSS, CLAIM OR DAMAGES OF ANY KIND, INCLUDING WITHOUT LIMITATION, INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES, WHETHER BASED ON BREACH OF CONTRACT, BREACH OF WARRANTY, TORT (INCLUDING NEGLIGENCE), PRODUCT LIABILITY OR OTHERWISE THAT RESULTS FROM YOUR USE OF OR INABILITY TO USE THE SITE. FURTHER, AND WITHOUT LIMITATION, NEITHER WE NOR OUR AFFILIATES SHALL BE LIABLE FOR ANY DAMAGES OF ANY KIND, INCLUDING WITHOUT LIMITATION, INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES CAUSED BY VIRUSES THAT INFECT YOUR COMPUTER EQUIPMENT OR OTHER PROPERTY ON ACCOUNT OF YOUR ACCESS TO, USE OF, OR BROWSING IN THE SITE OR YOUR DOWNLOADING OF ANY MATERIALS, DATA, TEXT, IMAGES, VIDEO, OR AUDIO FROM THE SITE.

(c) THE WALL DESIGNS, AS WELL AS ALL OTHER INFORMATION CONTAINED OR PROVIDED ON THIS SITE OR THE SITE ARE FOR INFORMATIONAL PURPOSES ONLY. THE INFORMATION PROVIDED ON THIS SITE OR THE SITE IS NOT A SUBSTITUTE FOR A PROFESSIONAL ENGINEER’S REVIEW AND APPROVAL OF THE WALL DESIGNS OR ANY OTHER INFORMATION OTHERWISE PROVIDED; IN FACT, THE WALL DESIGNS AND INFORMATION PROVIDED ON THIS SITE AND THE SITE ARE SUBJECT TO REVIEW AND APPROVAL BY A PROFESSIONAL ENGINEER PRIOR TO YOUR USE ON ANY PROJECT OR OTHERWISE.

(d) YOU ACKNOWLEDGE THAT THIS SITE AND THE INFORMATION PROVIDED AT THIS SITE WOULD NOT BE PROVIDED BY US WITHOUT THE FOREGOING DISCLAIMERS AND LIMITATIONS.

9. Limitations on Information. In compiling this Site, we have made a determined effort to present its contents accurately. However, reliance on the contents of this Site for any purpose by You is at Your sole risk. All standards, specifications, technical discussions, and reports included on this Site are advisory only. Neither we nor our affiliates shall be responsible for any errors of any kind (typographical or otherwise).

10. Use of Information Provided by the User. We reserve the right, and You authorize Us, to use all information regarding Your use of this Site and all information provided by You in any manner consistent with our Privacy Policy. By submitting material to Us, You automatically grant, or warrant that the owner of such material has expressly granted Us the royalty-free, worldwide, perpetual, irrevocable, non-exclusive right and license to use, reproduce, modify, adapt, publish, display, translate and distribute such material (in whole or in part) and/or incorporate it in other works in any form, media or technology now known or hereafter developed. You also permit any other user of the Site to access, view, store or reproduce the material for that user’s personal use. You grant Us the right to edit, copy, display, publish and distribute any materials made available on the Site by You.

11. Privacy Policy. Our Privacy Policy, as it may change from time to time, is a part of these Terms of Use. Neither we nor our affiliates shall be liable to You for any damages, including without limitation, indirect, special, incidental, or consequential damages, that may result from any violation of the Privacy Policy.

12. Links to Third Party Web Sites. The Site may contain links to other web sites as a convenience to You. Those sites are not operated or controlled by Us. Neither we nor our affiliates are responsible for the content, accuracy or opinions expressed in such web sites, and we have not investigated, monitored or checked for accuracy or completeness of any of these sites. Inclusion of any linked web site on the Site does not imply approval or endorsement of the linked web site by Us. If You decide to leave the Site and access these third-party sites, You do so at Your own risk.

13. Copyrights and Copyright Agents. We respect the intellectual property of others, and we ask You to do the same. If You believe that Your work has been copied in a way that constitutes copyright infringement, please provide our Copyright Agent with the following information: (a) An electronic or physical signature of the person authorized to act on behalf of the owner of the copyright interest; (b) Description of the copyrighted work that You claim has been infringed; (c) A description of where the material that You claim is infringing is located on the Site; (d) Your address, telephone number, and email address; (e) A statement by You that You have a good faith belief that the disputed use is not authorized by the copyright owner, its agent, or the law; and (f) A statement by You, made under penalty of perjury, that the above information in Your Notice is accurate and that You are the copyright owner or authorized to act on the copyright owner's behalf. Our Copyright Agent for notice of claims of copyright infringement on the Site is Joseph Kowalski who can be reached by mail at 3710 Section Road, Cincinnati, Ohio 45236; phone: (513) 984-8095; email: info@engineeronstaff.com.

14. Information and Press Releases. The Site contains information about Us and our affiliates. While this information was believed to be accurate as of the date it was prepared, we and our affiliates disclaim any duty or obligation to update this information or any press releases. Information about entities other than Us and our affiliates contained in the press release or otherwise, should not be relied upon as being provided or endorsed by Us.

15. Miscellaneous. These Terms of Use and the agreement created by Your acceptance of them through Your use of the Site shall be treated as though executed and performed in Ohio, and shall be governed by and construed in accordance with the laws of the State of Ohio (without regard to conflict of law principles). We do not make any representations or warranties regarding the use of or access to this Site outside of the United States and You are responsible for compliance with all applicable laws when using this Site. Any cause of action by You with respect to the Site (and/or any information, products or services related thereto) must be instituted according to the terms outlined in Section 16 herein and within one (1) year after the cause of action arose or be forever waived and barred and all actions shall be subject to the limitations set forth in these Terms of Use. The language in these Terms of Use shall be interpreted as to its fair meaning and not strictly for or against either party. Should any part of these Terms of Use be held invalid or unenforceable, the remaining portions of these Terms of Use shall remain in full force and effect. To the extent that anything in or associated with the Site is in conflict or inconsistent with these Terms of Use, these Terms of Use shall control. Our failure to enforce any provision of these Terms of Use shall not be deemed a waiver of such provision nor of the right to enforce such provision.

16. Arbitration. All disputes arising out of or in connection with these Terms of Use shall be settled by arbitration in Hamilton County, Ohio before the Center for Dispute Resolution in Cincinnati, Ohio. Arbitration may be commenced at any time by any party hereto giving written notice to the other party to a dispute that such dispute has been referred to arbitration under this Section 16. The arbitrator shall be selected by the joint agreement of Us and You, but if we do not so agree within twenty (20) days after the date of the notice referred to above, each party shall select one arbitrator. The two arbitrators selected by the parties shall select a third arbitrator and the three arbitrators shall serve as the arbitration panel. Any award rendered by the arbitrator, or arbitrators, whichever the case, shall be conclusive and binding upon the parties hereto; provided, however, that any such award shall be accompanied by a written opinion giving the reasons for the award. This provision for arbitration shall be specifically enforceable by the parties and the decision of the arbitrators in accordance herewith shall be final and binding and there shall be no right of appeal therefrom. Each party shall pay its own expenses of arbitration and the expenses of the arbitrators shall be equally shared. To the extent that arbitration may not be legally permitted hereunder, all legal proceedings arising out of or in connection with these Terms of Use shall be brought solely in state or federal courts located in Hamilton County, Ohio, and You expressly submit to the exclusive jurisdiction of said courts and consent to extra-territorial service of process.

We hope that You enjoy Your visit to this Site and find it informative. Thank you.