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Nature-Based Solutions Case Study Search

This database contains over 400 implementations of nature-based solutions. Use the filters to identify the case studies most relevant to you.

While all cases here exemplify applications of NBS strategies, they were gathered from various sources and not all were written using the framing of nature-based solutions. To qualify as a nature-based solution, a project must provide benefits to both people and nature. In some instances, the human benefits are present but not emphasized in the case write ups; these cases were included because they still provide useful information to learn from.

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The coral communities in Culebra were stressed by recognized erosion from an unpaved parking lot and road that had increased the volume of post-rainstorm runoff carrying pollutants. Community members managed to slow the flow of rainwater through erosion and sedimentation control, reforestation and habitat restoration through dune restoration, restoration of the line permanent vegetation, and delineation of vehicular and pedestrian access.

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After years of hard work by American Rivers and its project partners, the Bloede Dam in Maryland’s Patapsco River was successfully removed in 2018, restoring 52.5 miles of the river’s natural flow and more than 65 miles of native fish spawning habitat. Removing the dam also strengthened community resilience, improved public safety, and facilitated increased sediment transport to marshes and beaches along the Chesapeake Bay.

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Muskegon Lake’s shoreline and wetlands were severely degraded from industrial waste disposal, shoreline land use, and stormwater management. The Amoco Fish and Wildlife Habitat Restoration Project restored wetlands and wildlife habitat at a 9-hectare site. A constructed shoal system, the removal of a concrete wall, and a planted embankment restored wetland habitat. 

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In 2007 the Anacostia Watershed Society (AWS) initiated an experimental research project, called the 38th St. Bridge Project, on the rip-rap slope along the streambanks in order to demonstrate an alternative to the county's annual mowing-and-spraying of herbicide to control invasive species along the streambank.

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Arden Park is along Minnehaha Creek, an impaired waterway that is a tributary to the Mississippi River. This park is in a highly developed suburb just south of Minneapolis (Edina). This project improved the park and restored a section of the creek, improving habitat, water quality, and recreation opportunities. 

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City of Arlington constructed a 21-acre stormwater wetland park to treat stormwater from Old Town Arlington, clean backwash water from the City’s water treatment plant, and reclaim water from the City’s Water Reclamation Facility before infiltrating or discharging into the Stillaguamish River.

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Along the Morro Bay, the wetlands, intertidal mudflats, salt and freshwater marshes, eelgrass beds host some of the most productive natural habitats in the world. To protect the ecological significance of estuaries, stakeholders of the Morro Bay National Estuary Program in California worked with resources from the EPA's Climate Ready Estuaries program to identify their climate risks.

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In 2003, NOAA led a partnership that restored a 0.8-acre salt marsh in Bar Beach Lagoon, North Hempstead, New York, as part of a natural resource damage assessment (NRDA) settlement addressing natural resource injury damages due to release of contaminants into Hempstead Harbor. 

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Bayou La Branche, originally a brackish marshland, was levied and pumped into farmland before flooded into a large, open-water pond after the 1915 Hurricane. USACE and Louisiana Department of Natural Resources aimed to re-create the marsh habitat with an area of 70% land and 30% water within 5 years of construction.

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In 2017, the Bedford Parks and Recreation Department partnered with Live Well Lawrence County to open Bedford Garden Park, a community garden. The resulting park is now a space that produces food, brings people together, and offers activities that improve physical and mental health.

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The City of Bloomington began a creek naturalization project in 2002 to address significant erosion caused by intense storm water pressure and to enhance biodiversity in a popular local park. Through partnerships with local organizations, the City reduced flooding impacts, improved water quality and increased plant and animal species diversity in the improvement area.

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The U.S. Army Corps of Engineers (USACE)–Detroit District and several other partners used Great Lakes Restoration Initiative funding to reconnect 340 kilometers of the Boardman River to Grand Traverse Bay of Lake Michigan. This project involved three dam removals over six years, and improved riverine habitat for important species. 

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A manufacturing company purchased 100 acres of abandoned golf course on floodplain of Fort Collins to develop its new headquarter. To reduce the frequency and severity of flooding, the company reconnected the Cache la Poudre River with its floodplain, removing fill from 31 acres to build up pads for properties.

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The San Clemente Dam on the Carmel River was no longer useful due to sedimentation of the reservoir, and was declared a public safety hazard in the 1990s. This project removed the dam and restored the Carmel River’s floodplain and habitat. This improved habitat and connectivity for wildlife, including the threatened steelhead.  

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Cat Island and Ship Island are barrier islands off the coast of Mississippi that provide protection to coastal communities from erosion and storm surges. This project used millions of cubic meters of sand and reused dredged sediment to restore the islands’ beaches and dunes.  

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The Cat Island Chain in Green Bay, Wisconsin was lost to erosion and storms in the 1970s. This project is rebuilding the islands using clean dredged material from a nearby navigational channel. This will create beach and wetland habitat for many species and support both sport and commercial fisheries. 

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Plum creek is a primary tributary to the Chatfield Reservoir, a major source of water for Denver, Colorado. Urban development and increased stormwater runoff disrupted the creek’s sediment dynamic, causing streambed degradation and loss of wetlands. This project restored Plum Creek and its riparian habitat to increase water supply and protect native species. 

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The Clackamas River is a tributary to the Columbia River that has been degraded by beaver removal, logging, mining, overgrazing, and urban development. This disconnected the floodplain from its river and negatively impacted fish populations. This project restored habitat to help threatened and endangered salmonids. 

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Cleveland Metroparks worked closely with 12 community-based organizations and 40 stakeholder groups in restoring Lake Erie’s eastern shorefront. The team managed to conduct virtual and in-person outreach activities during the COVID-19 pandemic and develop a plan for 150 acres of park and habitat amenities, including 80 acres of newly acquired park land.

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The Alabama DOT considered a nature-based solution for a bridge replacement and highway realignment project across Mobile Bay, AL. The plan involved using a continuous rock revetment from the edge of the pavement down to the existing bay bottom, complemented by a nature-based solution consisting of stone breakwaters and planted marsh in front of the revetment.

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