Geotech Services

Structural foundation and retaining wall design guidelines are contained in the following memorandums:

AASHTO Load and Resistance Factor Design Policy (LRFD) For Bridge Substructures: Geotechnical Design Policy

Mechanically Stabilized Earth (MSE) Walls Pre-approved Systems List

The systems listed below were approved by ADOT Geotechnical Services and listed on ADOT’s Approved Product List (APL). These products will remain in approved status until a new Approved Systems List (ASL) is created by Bridge Group. The new ASL will be based on the MSE Wall stored specification that was updated on 7/17/20, and published on 8/14/20 (Specification link is below). For information on the ASL, please contact Bridge Group Standards Engineer Amjad Alzubi.

Product ADOT Specific Requirements for Wall System Manufacturer Contact
ARES Wall Ares.pdf Tensar International Corporation
KeySystem I Retaining Wall System Keysystem.pdf Keystone Retaining Wall Systems, LLC
MESA Block Mesa.pdf Tensar International Corporation
MSE Plus Concrete Panel Wall MSEplusConc.pdf SSL, LLC
MSE Plus Welded Wire Wall MSEplusWW.pdf SSL, LLC
Reinforced Earth Company (RECO) Concrete Panel Wall System RECO.pdf Reinforced Earth Company (RECO)
SINE Wall System SINE.pdf Inventure Civil

Mechanically Stabilized Earth (MSE) Walls Design Support Documents

Document Name View Document as a PDF Download Microstation DGN as ZIP
MSE Wall Stored Spec (929MSEW) 929MSEW.pdf  
Figure 929-2.03(A): MSE Wall Compound Stability Search Zone Locations to
Verify the Most Critical Failure Case for an MSE Wall with Level Backfill
929-2.03-A.pdf  
MSE Wall Design Data sheet MSE-Wall-Design-Summary-Sheet.pdf MSE-Wall-Design-Summary-Sheet.zip

The geotechnical project development and design manual below contains requirements for contract coordination, field investigation and testing requirements for ADOT's development processes: