Matanuska-Susitna Borough

Flood Mapping Update Enters Appeal Period

The Borough's flood maps are being updated for the first time since 1985! The preliminary 2016 FEMA flood map update is now ready for public review. You can pan and zoom to see the changes or search for your property by typing your address into the search tool in the upper right corner.

To compare the existing floodplain to the new, simply grab the line near the center of the page and slide it back and forth. Sliding the line to the right shows the existing flood data and sliding the line to the left reveals the new proposed data.

You can also use the numbered tabs towards the upper left of this page to take a tour that highlights some of the changes that come with the new data. Comments and questions can be directed to the Permit Center at 861-7822 or email This email address is being protected from spambots. You need JavaScript enabled to view it.

The preliminary update is ready for public review

You can pan and zoom to see the changes or search for your property by typing your address into the search tool in the upper right corner.

To compare the existing floodplain to the new, simply grab the line near the center of the page and slide it back and forth. Sliding the line to the right shows the existing flood data and sliding the line to the left reveals the new proposed data.

You can also use the numbered tabs towards the upper left of this page to take a tour that highlights some of the changes that come with the new data. Comments and questions can be directed to the Permit Center at 861-7822 or email This email address is being protected from spambots. You need JavaScript enabled to view it.

FEMA Floodplain Resources



FEMA helps. Here are some resources.

 

FEMA Floodplain Brochures

Proposed Flood Map Presentation - FEMA
Download
Biggert-Waters 2012
Download
FEMA Hazard Mitigation Grant Program
Download
FEMA Hazard Mitigation Assistance
Download
FEMA Hazard Mitigation Assistance Fact Sheet
Download

 

 

Current Update Project

More Project InfoThe Borough joined the National Flood Insurance Program (NFIP)in 1985 with the adoption of the FIRM maps. Since that time a number of flood events as well as substantial population growth have revealed inadequacy of those maps. Development has expanded into areas where the flood risk was not previously studied, leaving folks in harm’s way without any type of warning. Additionally, some of the existing flood zones are flawed, showing risk uphill from the actual area of risk. In 2013, several community meetings were held throughout the Borough and the feedback was clear: the flood maps needed to be updated. 

FIRM & DFIRM Maps



These are historic floodway maps that are no longer in use, but are presented as historical data.

FIRM & Floodway Maps

MAP INDEX

 

Historic FIRM Maps

Studies

Flood Plain Management Studies

South Central Alaska Floods of 1971-1972
Download
Matanuska River Watershed, Review of Resources, 1998
Download
Matanuska River Bank Erosion Inspection 10/21/03 Trip Report
Download
Lower Tanana River & Tributaries
Download
Kroto, Rabideux, Trapper & Peters Creeks
Download