key system

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K E Y S T E E L

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Keystone KeySteel Sq. Ft. Panel System is a world-classstructural retaining wall system, specifically designed foruse with highways and heavy construction. KeySteel combines

patented Keystone modular concrete units and inextensible stee

soil reinforcement to develop an extremely stable, aesthetically

appealing and cost-effective retaining wall structure.

Keystone KeySteels aesthetic options include a wide range of

completed wall appearances without the high cost of customiza

KeySteel also utilizes design methodology and material compo

that comply with the standards for inextensible reinforcement

as outlined in the current AASHTO Standard Specifications for

Highway Bridges.

S raigh face

8h x 18w x 12d(203 x 457 x 305 mm)

Sculp ure Rock Face

8h x 18w x 12d(203 x 457 x 305 mm)

Galvanized Steel Connection Pins9/16 x 8

(14.3 x 203 mm)

Fiberglass Alignment Pins1/2 x 5-1/4

(12.7 x 133mm)


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S reng hThe strength and performance of a retainingwall system is an obvious top considerationfor wall specifiers and designers. KeySteel isone of the most durable retention solutionsavailable. It features patented concrete units thatare manufactured to a minimum compressive

strength of 4,000 psi. The units are dry stackedand interlockedvertically and horizontally using high-strengthfiberglass pins and galvanized steel pins. Thismethod provides a very strong, mechanicallyinterlocked facing system.

KeySteel is also the ideal product for tall walls.Many walls using KeySteel have been constructedto over 50 ft. (15 m) with a variety of loading

conditions. KeySteel steel soil reinforcementoffers an economical and extremely strongstructural solution for tall walls and extremeloading conditions.

KeyS eel Flexibili yOffers Seismic &Aes he ic Benefi sCopings, crash barriers, railing options,construction slip joints, curves and corners are possible design elements in the KeySteel packawithout the need for specialized moldings andcustom fabrication.

Seismic design loads are easily factored into thKeySteel design analysis. The semi-flexible (Msystem handles seismic events better than morerigid systems.

KeySteel structures have a proven track recordhigh performance, withstanding seismic eventsthe Pacific Rim and Western United States withfailure or significant detrimental effects on the structure.


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KeyS eel Cons ruc ion Sequence

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Detail at Support Pier

KeySteel installation israpid and minimizes heavyequipment requirements.

KeySteel is also cost-competitive with all formsof AASHTO specified MSE structures.


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A S rong, S ruc ural Solu ion

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B R i d g e l O A d S

KeySteel handles all structures withheavy loads and crash barriersand also supports bridge loads andapproach walls.

WYDOT Project Direct Highway Bridge Support Abutment Wall

Picardy Avenue/ I-10 Interchange


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Bridge Support & Slip Joint

Slip Joint Detail

the Keys one A van ageWhen KeySteel is specified, a complete retainingwall system is engineered and supplied to meet site-specific conditions. They also ensure timely arrival

and sequencing of materials for construction.

After over 20 years at the forefront of the industry,Keystone Retaining Wall Systems, Inc. continuesto set the standard for excellence and innovationwithin the segmental retaining wall industry.Keystone represents the global benchmark in soilretention, erosion control and landscape systems.Holding over 50 patents, Keystone symbolizescutting-edge design, performance and aesthetics.

Keystone partners with the best network of productdevelopers, engineers, sales professionals andmanufacturers in the business. They help ensurethat Keystone offers the best in site solutions forresidential, commercial, recreational, industrial andgovernment applications.


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2007 Keystone Retaining Wall Systems, Inc. A CONTECH Company 4444 West 78th Street, Minneapolis, Minnesota 55435 (800) 747-8971 fax (952) 897-385

Keystone Retaining Wall Systems, Inc. reserves the right to improve its products and make changes to its specification and design without notice. The information contained herein has been compiledand to the best of its knowledge, accurately represents the Keystone product and how it may be used in the applications which are illustrated. Site conditions, including load pressures acting on the wand drainage conditions, may vary. Final determination of the suitability of t he product for the use contemplated and the manner of product use are the sole responsibility of the user. Good constructand local building codes require the use of an engineered design when constructing retaining walls or free-standing walls in many conditions. Structural design and analysis should be provided by a qualified

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