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In CSI MasterFormat, which division covers earthwork and site preparation?

Correct Answer

B) Division 31 - Earthwork

Division 31 - Earthwork covers excavation, grading, and site preparation activities in the current CSI MasterFormat.

Answer Options
A
Division 03 - Concrete
B
Division 31 - Earthwork
C
Division 32 - Exterior Improvements
D
Division 02 - Existing Conditions

Why This Is the Correct Answer

Division 31 - Earthwork is the correct CSI MasterFormat division that covers all earthwork and site preparation activities. This division includes excavation, grading, soil stabilization, dewatering, and other ground preparation work. The CSI MasterFormat 2016 edition specifically designates Division 31 for earthwork operations, making it the standard reference for contractors when organizing specifications and cost estimates for site preparation projects.

Why the Other Options Are Wrong

Option A: Division 03 - Concrete

Division 02 - Existing Conditions deals with assessment and remediation of existing site conditions, such as hazardous material abatement, selective demolition, and structure moving. While it involves existing site work, it does not cover new earthwork or site preparation activities like excavation and grading.

Option C: Division 32 - Exterior Improvements

Division 32 - Exterior Improvements covers site improvements like paving, landscaping, fencing, and outdoor structures that are installed after earthwork is complete. While related to site work, this division deals with finished improvements rather than the initial earthwork and site preparation phases.

Memory Technique

Remember '31 = Dirt Work Done' - Division 31 is where all the dirt moving, excavation, and earthwork happens before anything else can be built on the site.

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