Matanuska-Susitna Borough

Floodplain Management & Challenges

Mat-Su | Patty Sullivan | Friday, November 02, 2018

Talkeetna is built in a river channel that was once under water. Recently, the river has changed course and is eroding the riverbank toward town. Learn more about the challenges of managing development in floodplains from a presentation by Alex Strawn, Borough Development Services Manager, with an overview of the history of floodplain management nationwide and here. 

Listen to the audio of Strawn's presentation before the joint Borough Assembly and Planning Commission meeting posted here. View the pdf of his presentation and see major flooding events in the Matanuska-Susitna Borough. Learn how with better mapping, some 1,115 homes in the Borough are moving out of the floodplain.

For more information contact Alex Strawn at 861-7854 or This email address is being protected from spambots. You need JavaScript enabled to view it.




An Overview on the Floodplain Mapping


The confluence of the Susitna and the Talkeetna rivers.  You can see in the this photo, looking up the Big Susitna River from the dike that the Susitna is coming directly at the dike.  Photo by Terry Dolan, Public Works Director