Countywide FEMA Floodplain Maps Effective December 18, 2009
New county-wide preliminary maps August, 2016
***New Interactive Map Tool at bottom of page***
Principal Flood Problems
Flooding in Lincoln County usually occurs during the winter months (from October to April). Lincoln County is a coastal county with both riverine and coastal flooding sources. Riverine flooding typically results in Lincoln County when snow accumulates in the upper reaches of watersheds. When a warm southwest storm occurs in the region, the heavy rainfall, when combined with an increase in snowmelt, causes riverine flooding. The storms that produce coastal flooding often bring heavy rain, causing high flows in rivers. At estuaries and at the mouths of rivers, these flows are held back by high ocean levels, causing increased flood hazards. default Read more...
Changes since last mapping
As part of the countywide update, floodplain boundaries for the Pacific Ocean, Devil's Lake, and portions of Schooner Creek, Drift Creek, and Rowdy Creek were redelineated using contour data provided by the City of Lincoln City. The data consisted of topographic mapping with a vertical contour interval of two feet and horizontal scale of 1" = 100'. The data were derived from aerial photography flown on February 25th,
2001. Additional topographic data were obtained from the National Oceanic and Atmospheric Administration (NOAA) for the entire coastline of Lincoln County. These data were first-return and had not been post-processed to filter out extraneous data points. These data were only used in areas where aerial photography clearly indicated the absence of ground cover. The approximate vertical precision of the NOAA LiDAR data is +/- 15 centimeters for bare ground.
As part of the countywide update, floodplain boundaries were digitized from the effective FIRM and Flood Boundary and Floodway Map (FBFM) panels. USGS topographic maps and aerial photography were used to adjust floodplain and floodway boundaries where appropriate
A "KML" is a file that can be downloaded and opened directly in Google Earth, ArcGIS Explorer and other viewing software available on the Internet. The KML below is for the Special Flood Hazard Area (SFHA), also known as the "100-year" flood.
- Download KML - default Lincoln Co SFHA KML (2.97 MB)
A Flood Insurance Study (FIS) is the publication developed in conjunction with the Flood Insurance Rate Map (FIRM) and discusses the engineering methods used to develop the FIRMs. The study also contains flood profiles for studied flooding sources and can be used to determine Base Flood Elevations for some areas.
- Download County Flood Insurance Study - default Lincoln Co FIS (4.51 MB)
Lincoln County's floodplain maps are being remapped; FEMA has contracted with DOGAMI for the project. Preliminary maps projected spring 2016
Snapshots around the County
Communities showing the Special Flood Hazard Area (SFHA) and general location of NFIP policies:
Note - For general information only - DO NOT use for regulatory purposes, especially for non-modernized areas: see "description" for source information and disclaimer
(hint: once in Viewer select "Basemap" in upper left corner for imagery background)