The Delridge Neighborhood Development Association shared via their newsletter that work on the restoration of the Roxhill Bog has begun.

In their newsletter they said, "construction is officially underway at Roxhill Park! This pilot project will test an innovative design using vinyl piling to create a barrier that helps retain water in the wetland. This is a major milestone in rehydrating the peat soils and restoring this vital wetland ecosystem. 

To celebrate and support this important work, DNDA is hosting two Roxhill restoration volunteer events on Tuesday, December 9 and Saturday, December 13."

You can visit their site to sign up for those events here: https://dnda.org/nature/

As WestSideSeattle.com first told you in August, the bog is an essential part of the local ecosystem.

The Critical Importance of Roxhill Bog: A Unique and Endangered Ecosystem

Central to the park's future is the Roxhill Bog, recognized as "one of the most biologically diverse ecology zones within the Seattle City limits". Sharon Leishman of the Duwamish Alive Coalition emphasized its unique status: "this is the last peat bog in Seattle," with many others having been removed or built over.

What Is Peat?

• Formed from Sphagnum moss, sedges, grasses, and other vegetation.

• Develops in anaerobic (oxygen-deficient) conditions, which slow decomposition.

• Appears dark, fibrous, and sponge-like, with up to 90% water content.

• Found in peatlands, which cover ~3% of Earth’s land surface but hold outsized ecological importance.

This ancient wetland, thousands of years old, serves multiple vital functions:

• Water Filtration: It acts as an "essential water filter for a 3.5-mile long waterway" that forms the headwaters of Longfellow Creek, supporting species like coho salmon, ensatina salamanders, and red foxes downstream.

• Carbon Sequestration: The bog "collects more carbon than our forests," serving as a "huge key carbon" sink. Its degradation releases stored carbon back into the atmosphere.

• Unique Ecosystem: It provides a "really unique ecosystem" with diverse native plant life and a rich bird population, historically one of the most diverse in the city according to Audubon's bird surveys.

• Community Hub and Educational Resource: Historically, when healthy and safe, it was a "vibrant, central gathering place for diverse communities" for educational and recreational activities. Schools, from elementary to university level, regularly utilized it as an outdoor classroom for hands-on lessons in science, math, and social science, fostering a love of nature, stewardship, and community.

 

Degradation and Cutting-Edge Restoration Efforts

The bog is currently in peril, with "water levels too low" and fluctuating too much, which could lead to the "destruction of the natural peat base". This drying out is causing the peat to degrade, compress, and dry out, visibly affecting park paths. It's most visible looking at the footbridges in the park which are now elevated above the surrounding landscape.

A community-driven restoration project is slated to begin this fall, focusing on rehydration. The initial phase will involve installing a "cutting-edge, plastic type barrier" approximately "four feet five feet deep" in the wettest part of the bog. This innovative technique, inspired by similar work in the UK, aims to "minimize the amount of disturbance". The pilot project will be monitored for a year to gather data for future grant funding, with the expectation that its success will lead to research papers encouraging similar efforts nationwide.

Collaboration for Long-Term Support and Education

This community-led initiative is supported by a larger, distinct but complementary effort from Seattle Public Utilities (SPU), which is in the "very early stage" of exploring ways to bring clean water to the rehydration area. This larger SPU project, potentially involving a "treatment wetland" or "natural drainage systems," could see construction around 2028. Collaboration between SPU and the community is "paramount," with SPU emphasizing that "None of this would have moved forward without community".

Both the community and SPU are committed to transforming the bog into an educational resource, creating a "platform for the school to do outdoor classroom studies". The Delridge Wetland Park serves as a model for an outdoor classroom in partnership with a STEM school. Efforts include engaging high school environmental clubs and youth programs, such as DNDA's environmental justice program, to connect young people to Longfellow Creek and foster long-term stewardship.

Addressing Deep Community Needs

The restoration project is critically needed for the surrounding communities, characterized as "underserved, diverse with limited resources". The demographics highlight this need:

• Roxhill Community: High population density, with 61.3% identifying as non-white.

• Delridge Community: Over 30,000 residents, 46.5% non-white, 40% living in poverty (12% below 100% federal poverty level, 28% below 200%), and the highest proportion of youth under 18 in Seattle (23.6%). Twenty percent speak English as a second language.

• White Center: Over 60% of its 13,495 residents identify as non-white, with 25.0% below the poverty line, including 38.3% of those under 18.

Given these demographics, the project aims to provide:

• Safe, Accessible Natural Areas: Healthy ecosystems that foster community health and well-being, especially for BIPOC communities historically most impacted by environmental factors.

• Improved STEM Educational and Career Pathways: Hands-on, real-world learning for K-12 students, particularly BIPOC youth, fostering critical thinking and problem-solving skills.

• Community Education and Recreation: Restoring positive, safe experiences with nature, learning, exercise, and inter-cultural connection.

• Community Building: Creating a nucleus for developing social networks that foster trust and reciprocity, empowering community members to advocate for their community.

The restoration effort was initially instigated many years ago by local, longtime residents alarmed by the bog's degradation, who wished to restore it to its former status as a community treasure. The Delridge Neighborhood Development Association (DNDA) is a prominent community organization leading this effort, alongside county and city leadership. Key partners include American Rivers and the Duwamish Alive Coalition (DAC). Funding support comes from Boeing, King County Water Works, Rose Foundation, and Seattle Parks Foundation has provided some staff support.

The collective efforts, from weekly cleanups to innovative bog restoration and strong collaborations, offer a hopeful outlook for Roxhill Park's future as a safer, cleaner, and ecologically vibrant space that serves as a vital asset to its diverse communities. As Leishman summarized the impact of community voice, "In Seattle your voice makes a difference. When community members get together and say there's a problem that's what moves the needle"

Folks that would like to help care for the park, can volunteer with DNDA.  Their website lists volunteer opportunities for Longfellow Creek and Roxhill Bog.