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
- Spread Footing: Bearing Resistance and Settlement (Revised 12/01/10)
- Spread Footing: Limited Eccentricity
- Spread Footing: Sliding and Bearing Resistance
- Drilled Shafts: Axial Resistance (Revised 12/01/10)
- Drilled Shafts: Gravel and Gravelly Soils (Revised 12/01/10)
- Drilled Shafts: Lateral Analysis
- Cast-in-Place Walls: Analysis of ADOT Standard Case III
- Cast-in-Place Walls: Analysis of ADOT Standard Case IV
- PPD #24 Requirements for the Approval of Mechanically Stabilized Earth (MSE) Wall System
The geotechnical project development and design manual below contains requirements for contract coordination, field investigation and testing requirements for ADOT's development processes:
