Michigan Administrative Code
Department - Licensing and Regulatory Affairs
Bureau of Construction Codes
Construction Code Commission General Rules
Construction Code
Part 5 - RESIDENTIAL CODE
Section R. 408.30522 - Minimum depth
Universal Citation: MI Admin Code R. 408.30522
Current through Vol. 24-16, September 15, 2024
Rule 522.
Section R403.1.4 of the code is amended to read as follows:
R403.1.4. Minimum depth. All exterior footings and foundation systems shall extend 42 inches below actual grade. Where applicable, the depth of the footings shall also conform to section R403.1.4.1 of the code.
Exception:
Upon evidence of the existence of any of the following conditions, the building official may modify the footing depth accordingly:
(a) Freezing temperatures
(freezing degree days).
(b) Soil
type.
(c) Ground water
conditions.
(d) Snow depth
experience.
(e) Exposure to the
elements.
(f) Other specific
conditions identified by the building official that may affect the foundation
system.
Disclaimer: These regulations may not be the most recent version. Michigan may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
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