September 4, 2020


RE: Hillside Lot Requirements Per Sections R403.1.7.1 Through R403.1.7.4 of 2018 IRC

 
www.ci.missoula.mt.us

Attention all contractors/Designers

Due to the increased number of building lots which fall under the requirements of sections R403.1.7.1 through R403.1.7.4, the Building Division would like to remind the construction industry to design and build in accordance with these sections of the code. If construction scenarios preclude adherence to these sections, please be prepared to submit geotechnical engineering which provides approval for non-prescriptive site locations in relationship to adjacent slopes. 

Free online access to the above referenced code sections can be found at https://codes.iccsafe.org/content/IRC2018/chapter-4-foundations#IRC2018_Pt03_Ch04_SecR403.1.7 and will provide the prescriptive path to compliance without need for specific engineering reports. Should you have any questions regarding these code sections, please reach out to the Building Division Plans Examiners, Brian or Cristina, at cookb@ci.missoula.mt.us or coddingtonc@ci.missoula.mt.us, respectively.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

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