New Preliminary Floodplain Maps

New Preliminary Floodplain Maps

Granite County, Philipsburg, Drummond, and the Montana Department of Natural Resources and Conservation (DNRC) will be hosting two public informational meetings to present the preliminary results of updated floodplain mapping.

Public Informational Meetings – Thursday, November 6, 2014

3:30 p.m. to 5:00 p.m. — Granite County Museum, 135 S. Sansome Street, Philipsburg

6:30 p.m. to 8:00 p.m. – Hall Elementary School, 8 Farm to Market Road, Hall

The meetings will include a short informational presentation, time to review the preliminary floodplain maps and information, and time for individual questions.

The updated floodplain mapping is part of a county-wide Digital Flood Insurance Rate Map (DFIRM) project for Granite County initiated in 2011. Montana DNRC managed the project with FEMA providing grant funding and project oversight.  The project involved four new floodplain studies on portions of Flint Creek, Frost Creek, Camp Creek, and Lower Willow Creek.  The remaining existing mapped floodplains in the county were converted from paper format into digital format, and an updated Flood Insurance Study for Granite County was produced as part of the project.  The maps and study undergo public review prior to being finalized.

The proposed floodplain changes for Flint Creek, Frost Creek, Camp Creek and Lower Willow Creek can be viewed at:

FEMA website with all preliminary floodplain maps (scroll to bottom to see index of maps):

The November 6, 2014, meetings begin the public review process for the preliminary floodplain maps and study. Following the public meetings there will be an official 90-day appeal and comment period during which people can submit appeals or comments regarding the preliminary maps and study.

For more information contact:

Mike Kahoe, Granite County Floodplain Administrator, (406) 859-7023



Tiffany Lyden, MT Dept. of Natural Resources & Conservation, Helena, (406) 444-0599