RFP #502-26 On-Call Geotechnical Services

Dawson County Board of Commissioners is issuing this RFP to solicit sealed proposals from qualified vendors specializing in Geotechnical Services. The selected vendor will be responsible for providing on-call Geotechnical Services to support County construction and development projects.

The selected consultant will provide professional support for County construction and development projects, including – but not limited to – materials testing, special inspections, NPDES compliance, and laboratory analysis.

The consultant should have the ability to complete Material Sampling and Testing and coordination on proposed projects and travel to project sites to perform testing and inspection services. The following types of services required may include, but are not limited to:

Geotechnical Services

• Perform soil borings, test pits, and subsurface exploration
• Provide geotechnical engineering analysis and recommendations for: Foundations, Retaining walls, Slopes, Pavements, road base and sub-base, Embankments
• Prepare geotechnical data reports, engineering reports, and design recommendations.

Materials Testing & Special Inspections

• Field and laboratory testing for: Soils, Aggregates, Concrete, Asphalt, Masonry, Steel
• Perform field density tests, penetration tests, slump, air content, compressive strength, compaction testing, etc.
• Provide qualified inspectors and certified test reports conforming to ASTM/AASHTO standards.

NPDES Compliance Services

• Weekly BMP inspections
• Weekly rainfall reports
• Post-precipitation inspections
• Water sample analysis and stormwater sampling

Laboratory Testing Services

• Soil classification, permeability, compaction, moisture density
• Concrete, grout, mortar, masonry, asphalt testing
• Consolidation, compressive strength, CMU tests

Administrative Services (not limited to)

• Prepare observation/testing/inspection reports
• Provide daily field reports for after each site visit
• Maintain documentation for each test
• Provide engineering consultation, interpretation of results, and recommendations

All work shall be done in accordance with County Development Standards, Americans with Disability Act (ADA) Standards, Georgia Department of Transportation (GDOT) Standards, Georgia Adopted ICC Codes 2024, any other authorities having jurisdiction over the project, and county guidance documents applicable to the project. It is expected that certain projects may require tasks to be performed by sub-consultants.

Complete RFP packages must be submitted in a sealed envelope or container clearly marked with the RFP Name and RFP Number. Submit one (1) original hard copy proposal, and one electronic (1) copy of the proposal on USB drive. Handwritten or incomplete proposals may not be considered.

The initial term of a contract awarded as a result of this RFP shall be from award through December 31, 2027. The contract may be renewed according to the terms stated herein for four (4) additional one (1) year periods.

**Evaluation:** Executive Summary 20, References 25, Approach 35, Financial Proposal 20, TOTAL POINTS 100.

General Liability, Professional Liability, and Cyber Liability at a minimum should cover $2,000,000 per incident and $6,000,000 aggregate. Dawson County Board of Commissioners shall be named as additionally insured for the project herein.

Bid Bond – not required. Performance Bond – not required. Payment Bond – not required.

Submittals shall be valid and may not be withdrawn for a period of ninety (90) days from the date specified for receipt submittals.