Materials and Road Research

Materials and Road Research | Geotechnical Engineering

Geology

The Geology Unit is responsible for lithological identification, rock mass classification and analysis of rock competence for recommendations including: rock slope and excavation design, foundation bearing capacities, blasting, vibrations, and rock fall management.

Aggregates

• Aggregate resources

Geology

• A simplified bedrock map of Minnesota (PDF)
• A simplified quaternary map of Minnesota (PDF)

Geophysics

• Geophysical surveys

Groundwater

• Occurrence & control (PDF)

Manuals

• Geotechnical manual

RipRap

• Approved QC Plans(for carbonate sources) and Gradations (for non-carbonate sources) (Word)
• Requirements for Carbonate Riprap Quality Control (QC) Plan (PDF)
• MnDOT - Modified Acid Insoluble residue Test Procedure (PDF)
• Form G&B-104b Riprap Quality Control Plan
• Form G&B-108a and G&B-108b
• Form G&B-109b Acceptance of Riprap Material

Rock Slopes

• Recommendations (PDF)

Vibrations

• Example Special Provisions Language for Vibration Control and Monitoring (PDF)