The City of Missoula has adopted the following codes effective March 7, 2020.
The City has recently adopted the State mandated code updates. Below are documents addressing the significant changes from the previously adopted codes to the current adopted codes.
Note: These documents are a summary and do not include all code changes or modifications. Readers are advised to research and verify any code changes and requirements related to their projects. These documents are not to be used as a replacement of, or modification to, officially adopted code documents.
The snow load for the City of Missoula is 30 pounds per square foot and the wind load is roughly 90 miles per hour. See IBC 1609 or IRC 301.2 for an exact number.
To purchase code books, visit the International Code Council.
R401.3 Drainage - Surface drainage shall be diverted to a storm sewer conveyance or other approved point of collection so as to not create a hazard. Lots shall be graded so as to drain surface water away from foundation walls. The grade away from foundation walls shall fall a minimum of 6" (152 mm) within the first 10’ (3,048 mm). One exception is where lot lines, walls, slopes, or other physical barriers prohibit 6" (152 mm) of fall within 10’ (3,048 mm), drains or swales shall be provided to ensure drainage away from the structure.