Approved Wall Systems meeting

STANDARD SPECIFICATION Revision of December 2002

SECTION 636

Mechanically Stabilized Earth Retaining Wall

"Reinforced Earth Walls"

Reinforced Earth Company

133 Park Street

North Reading, MA 01864

Tel: (978) 664-2830
Fax: (978) 664-2831

"Retained Earth Walls"

Foster Geotechnical Corporation

1372 Old Bridge Road Suite 101

Woodbridge, VA 22192

Approved Wall Systems meeting

SPECIAL PROVISION

SECTION 635

PREFABRICATED GRAVITY RETAINING WALL

(Pre-cast Concrete Modular Gravity Wall)

"T-Wall Retaining Wall System"

The Neel Company

8328-D Traford Lane

Springfield, VA 22152

(703) 913-7858

"Doublewal"

Doublewal Corporation

7 West Main Street

Plainville, CT 06062

(860) 793-0295

Approved Wall Systems meeting

SPECIAL PROVISION

SECTION 635

PREFABRICATED GRAVITY RETAINING WALL

(Prefabricated Concrete Block Gravity Wall)

"Redi-Rock Wall"

Redi-Rock International

05481 South US 31

Charlevoix, MI 49720

(866) 222-8400

(231) 237-9500

Notes:

1. 6 of these retaining walls were constructed during the Trial-Use phase, which commenced in 2003.
2. Performance and serviceability issues are being monitored.

Trial Status Wall Systems meeting

SPECIAL PROVISION

SECTION 635

PREFABRICATED GRAVITY RETAINING WALL

(Prefabricated Aggregate-Filled Concrete Block Gravity Wall)

"Stone Strong Systems"

Stone Strong Systems, Inc.

3801 Union Drive, Suite 102

Lincoln, NE 68516

(402) 434- 5652

Notes:

1. This wall system is only for trial use. Contact the Project Manager for questions regarding use of this wall system as an alternative wall system on advertised projects.
2. A maximum of six (6) retaining walls can be constructed in a 3 to 5 year trial period starting September, 2006.
3. Performance and serviceability will be monitored and evaluated at the end of the trial-use period.
4. Contact the Product Approval Coordinator at (207) 624-3268 for more information.