Living shorelines in Maine show mixed success
Summary
Maine’s Popham Beach has experienced heavy erosion due to storms and river currents. To help rebuild sand dunes, volunteers placed Christmas trees along the beach as part of a "living shoreline" effort, which uses natural materials to protect coastlines instead of hard structures like seawalls.Key Facts
- Popham Beach in Maine eroded about 92 feet per year between 2017 and 2025.
- The Morse River currents have contributed to the erosion by cutting into the dunes.
- After damaging winter storms in 2023 and 2024, volunteers placed over 500 Christmas trees to trap sand and help rebuild dunes.
- "Living shorelines" use natural materials like plants, logs, and shells to stabilize coasts, unlike seawalls that can cause more erosion.
- Maine’s cold winters and rising sea levels make it hard for living shorelines to grow and last long.
- The Christmas tree dunes lasted about a year before storms scattered the trees along the beach.
- Long-term fixes at Popham might require expensive changes like moving facilities or altering the river’s flow.
- Maintaining living shorelines requires ongoing care such as watering and replanting, which can be costly and time-consuming.
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