1-Attachment A - Scope of Work (SOW).docx

Attachment A Scope of Work (SOW)

The Responder shall adhere to the following minimum specifications, performance requirements, and all terms and conditions within this solicitation.

1. On-Call Geotechnical Engineering Services

1.1. Purpose

The scope of services for Geotechnical Engineering Services includes the ability to plan, study, and analyze soils, rock, and other materials in support of the design and evaluation of various public works, transportation, and infrastructure projects. Services shall include, but may not be limited to: field investigations; laboratory testing; analyses; and the preparation of reports, memorandums, and other deliverables.

1.2. General Geotechnical Engineering Services

The consultant shall perform geotechnical engineering services as requested, including but not limited to:

1.2.1. Site investigations, subsurface exploration, and soil sampling;

1.2.2. Evaluation of soil, rock, and groundwater conditions;

1.2.3. Laboratory testing of soil, aggregate, concrete, asphalt, and other construction materials;

1.2.4. Review of grading and earthwork plans for geotechnical compliance;

1.2.5. Review of Geotechnical reports and studies; and

1.2.6. Preparation of geotechnical reports or memorandums with recommendations for:

1.2.6.1. Foundation design (shallow and deep);

1.2.6.2. Pavement design including subgrade support and treatment/mitigation for expansive soils;

1.2.6.3. Slope stability and embankment design;

1.2.6.4. Retaining structures and earth support systems;

1.2.6.5. Settlement, consolidation, and bearing capacity analyses;

1.2.6.6. Groundwater control and drainage considerations; and

1.2.6.7. Construction support including field density testing, compaction control, and materials quality assurance.

1.3. Materials Testing Services

The consultant shall provide laboratory and field-testing services, which may include but are not limited to:

1.3.1. In-place density and moisture testing (nuclear and sand cone methods);

1.3.2. Concrete testing (slump, air content, compressive strength);

1.3.3. Asphalt mix and compaction testing;

1.3.4. Aggregate gradation and quality analysis;

1.3.5. Laboratory classification and strength testing of soils (Atterberg limits, sieve analysis, triaxial, direct shear, etc.); and

1.3.6. Corrosivity and chemical testing for buried infrastructure.

1.4. Specialized Geotechnical Services

When required, the consultant shall provide specialized investigations and analyses, including:

1.4.1. Earth fissure investigations and mapping;

1.4.2. Expansive and collapsible soil evaluations;

1.4.3. Ground improvement and stabilization methods;

1.4.4. Forensic geotechnical investigations related to structural or pavement distress;

1.4.5. Geophysical testing to supplement subsurface evaluations; and

1.4.6. Geotechnical support for dam safety, levee stability, and flood control structures.

1.5. Deliverables

Deliverables will typically include, but are not limited to:

1.5.1. Field logs and laboratory test results;

1.5.2. Memoranda and summary letters as requested;

1.5.3. Comprehensive geotechnical reports with findings, analyses, and design recommendations; and

1.5.4. Digital data and GIS-compatible subsurface information when applicable.

1.6. Standards & Compliance

All work shall comply with applicable local, state, and federal statutes and standards, including, but not limited to:

1.6.1. ASTM, AASHTO, and ADOT testing standards;

1.6.2. Local building codes and agency geotechnical guidelines;

1.6.3. Applicable environmental and safety standards; and

1.6.4. Selected consultants may be required to abide by Minority & Disadvantaged Business Enterprise practices during the term of the contract for federally funded projects.

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