Construction Impact Category Question

We are evaluating a construction project that includes a mix of single-family and multi-family residential, commercial, and school buildings. The IMPLAN construction categories and straightforward to match to these construction buildings. The construction budget includes a separate category called "backbone infrastructure". It's described as follows: 

The “backbone” infrastructure estimate is inclusive of rough grading, including cut and fill cubic yards, construction of the Public Park, Public Collector Roads,  sidewalks, curb/gutter, pavement, pavement striping and the installation of sewer main, storm drain main, potable water, gas, joint trench and electrical infrastructure to support the build out of Dana Reserve.  The utility infrastructure will also include the installation of a dry recycled water main for when NCSD is able to provide recycled water to the Tract’s southern boundary.  The estimate also accounts for providing utility stubs for future connection as each neighborhood is developed.

Would these backbone infrastructure costs be included in Category 56 - Construction of other new nonresidential structures. Or should these costs be included in the primary construction categories: 53-Construction of new educational and vocational structures, 55-Construction of new commercial structures, 57-58-SF and MF residential structures?

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  • Official comment


    I would classify these "backbone infrastructure" costs as site preparation costs, and thus they should be included in the spending for the other construction Industries you noted (53, 55, 57-58). From the Census Bureau's definition of what should be included in construction:

    "Site preparation and outside construction of fixed structures or facilities such as sidewalks, highways and streets, parking lots, utility connections, outdoor lighting, railroad tracks, airfields, piers, wharves and docks, telephone lines, radio and television towers, water supply lines, sewers, water and signal towers, electric light and power distribution and transmission lines, petroleum and gas pipelines, and similar facilities that are built into or fixed to the land."

    In the case that you do have this budget broken out across the four other construction Industries, great. If you don't, you would need to assume some hypothetical split, such as off of square footage of the structures being built.


    Hope this helps!

    Michael Nealy

  • Thanks Michael, that definitely helps.


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