Brunswick, ME Coastal Erosion Rate
Shoreline change 12.2 miles southeast of Brunswick, ME
The coast 12.2 miles southeast of Brunswick, ME shows no statistically significant trend either way. USGS's transects measured a rate here, but it's smaller than the survey's own margin of error for this stretch, so calling it "eroding" or "growing" would overstate what the data actually shows.
The grain of this number
Nothing here is parcel-level. USGS's raw transects run every few hundred feet along the shore; this page averages the ones nearest Brunswick, ME into one ~3.5-mile reading rather than picking a single arbitrary line to represent the area. Centered near 43.73°N, 69.83°W. The survey behind it runs to 2007-2009, in USGS's New England / Mid-Atlantic assessment, using the LRR method. Shoreline surveys aren't repeated every year, so this is the most recent long-term measurement USGS has published for this coast, not a live reading.
Where this fits nationally
This reading comes from 23 individual transects averaged together, 17% of which measured erosion rather than growth. Uncertainty on this specific number: 0.12 ft/yr either side. Taken at face value, this segment's raw 0.1 ft/yr reading would land it 852 of 1211 nationally - a number worth ignoring, since it's statistical noise rather than a real trend. Source: USGS Open-File Report 2010-1119. Rank 1142 nationally for growth belongs to Mexico Beach, FL, 1279 miles from this stretch, measured at 1.54 ft/yr. 1.2 miles away, Brunswick, ME is the nearest other measured stretch: also no significant trend.
Not this whole stretch, just Brunswick itself: the Coastal Change Hazards Portal is USGS's own live version of this data.