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2012-13 FEMA Map Updates
Posted Date: 10/8/2012 8:00 AM

You may have heard (or received a notice) that the Flood Maps will be updated soon and that the new map will contain a Regulatory Floodway. Properties and structures located in a Regulatory Floodplain are located within the Floodplain but have additional development restrictions.

The City of Mill Valley is hosting a Community Meeting with FEMA and the County of Marin regarding these updates at the Mill Valley Community Center, Cascade Room, at 7 p.m. on Thursday, October 11, 2012. At this meeting, FEMA will summarize the process of conducting a flood study and revision of the Flood Insurance Risk Maps, including the creation of a regulatory floodway. A schedule of activities and milestones will be reviewed regarding the timeline of this work. A flood insurance representative from FEMA will then discuss the National Flood Insurance Program and review benefits to adding flood insurance coverage before map changes occur to a flood risk area, otherwise known as “grandfathering”. FEMA will then conduct a question and answer period for general questions, with a following break out session where local officials can answer more specific property related questions using the draft maps.

Further information regarding these updates can be found on FEMA’s website.

Will your property be affected by the 2012-13 Map Updates?

You can check to see if your property is within a FEMA designated floodplain or within a regulatory floodway by clicking on our website.

Remember, the maps are in the draft form at this time and will not be final until spring of 2013. Note: If your property is currently in a FEMA designated floodplain and does not appear on the spreadsheet please contact the Planning Department to confirm it is no longer in a flood zone. Some properties have not been affected by these map changes and will remain in the same floodplain as they previously were.

What is a Regulatory Floodway?

A regulatory floodway means the channel of a river or other watercourse and the adjacent land areas that must be reserved in order to discharge the base flood without cumulatively increasing the water surface elevation by more than one foot. Structures located within Regulatory Floodways have additional development restriction beyond those imposed by being located within a floodplain. Note: All properties within the regulatory floodway are also in a floodplain and must follow the requirements of both designations.

Where can I get more information?

Chapter 18.04 of the Mill Valley Municipal Code

Additionally, for information on the Floodplain, Regulatory Floodway, or the Map Updates for properties within the City of Mill Valley you can contact the Planning Department at (415) 388-4033.

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