This project involved performing all required subsurface investigations and geotechnical engineering associated with the proposed bridge replacements over Dean Swamp, along US-176 near the Berkeley/Orangeburg county line.
Field testing consisted of soil test borings, multi-channel analysis of surface waves, and bulk samples. The soil test borings were advanced using rotary wash drilling techniques to depths of up to 100 feet.
Laboratory testing consisted of:
- 32 Atterberg limits,
- 32 natural moisture contents,
- 28 grain size distributions with wash 200,
- 4 hydrometer tests,
- 2 corrosion series (consisting of pH level, sulfate content, chloride content, and soil resistivity level),
- 4 organic loss contents,
- 2 standard proctors (laboratory compaction tests), and
- 2 direct shear tests.