FEMA Work Maps
These maps - which correspond to the FIRMs and show greater detail for floodplain areas on Issaquah Creek, East Fork Issaquah Creek, and North Fork Issaquah Creek - are available in CAD format. They are also known as the Montgomery Water Group maps for the 2002 FIS update, and include subsequent LOMRs.
Letter of Map Revisions (LOMRs)
These maps are used to document interim changes to FIRMs (such as floodplain improvement projects or corrections to the original FIRMs).
Letter of Map Amendments (LOMAs)
These maps are used by FEMA to make floodplain determinations on individual properties, as requested by property owners. If the FIRMs doesn't clearly show your property, then in most cases you will need to submit a LOMA to FEMA for their review. A LOMA typically requires elevation data on your property that is prepared by a professional surveyor.
LOMAs can be obtained on FEMA's website, and the City may have copies in our permitting files.