What type of soil classification would an inspector mistakenly label as type C?

Type B soil is classified as a soil that has an unconfined compressive strength of 1.5 tons per square foot or greater but less than 3 tons per square foot. It can consist of granular soils such as sand and gravel, as well as non-plastic clay, or clay with some level of plasticity. It is also important to note that Type B soil can become unstable or loose under certain conditions, which can lead to misclassification as Type C soil, which is less stable and typically includes materials that can easily collapse or pose a greater risk during excavation.

In this context, if an inspector mistakenly labels Type B soil as type C, it could have serious safety implications. Type C soil requires additional precautions during excavation due to its lower stability, whereas Type B soil may not need such rigorous measures. Recognizing the right soil type is crucial for ensuring effective excavation safety practices, and understanding the distinctions between these classifications helps prevent accidents on site.

Type A soil, Type D soil, and loose gravel have their own classifications, which differ significantly from Type B and Type C. Therefore, accurate identification is essential for maintaining a safe work environment.