The Ed Pastor Kino Environmental Restoration Project (KERP) aimed to restore natural areas by redeveloping an unlined stormwater detention basin in Tucson, Arizona. KERP covers 125 acres and includes constructed stream courses, five vegetation-lined ponds, restored native vegetation communities, flood control structures, and a recreational path.
Let us know what you think of the Roadmap website. Provide your feedback →
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.
Also search for nature-based solutions strategies (project types) →
Cincinnati is one of the nation’s top five combined sewer overflow (CSO) dischargers, causing severely polluted waterways and building damage. The Lick Run Watershed hosts the Cincinnati-area's largest combined sewer and was a priority for improved stormwater management. The Lick Run Watershed Strategic Integration Plan aims to eliminate 400 million gallons of combined sewer overflow annually.
Toledo, Ohio has experienced increased stormwater flooding and sewage system overflows, causing water quality issues and flood hazards. The city created the the Green Stormwater Infrastructure (GSI) Task Force to address these issues. One of GSI’s projects on Maywood Avenue used green infrastructure to improve water quality and reduce runoff.
Dangerous and costly flash floods in Tulsa, Oklahoma resulted in deaths, injuries, and hundreds of millions of dollars in damage. Mingo Creek was a flood control priority waterway for the city to reduce damage and flood risk. The Tulsa Department of Stormwater Management implemented a voluntary acquisition program by purchasing flooded properties and began floodplain restoration.
The Illinois Coastal Management Program and Navy Pier, Inc collaborated to redevelop Chicago’s Navy Pier with green infrastructure projects. These projects aimed to reduce runoff, flooding, and pollution. The project planted trees in planters designed specifically for this project to retain and filter stormwater, or redirect it for future use.
Aging infrastructure in Pittsburgh has resulted in sewer overflows and street flooding with more frequent and intense heavy rainfall under climate change. The Pittsburgh Water and Sewer Authority (PWSA) identified priority neighborhood and designed an integrated watershed plan utilizing green and gray infrastructure to improve water quality and manage stormwater.
Located at the intersection of North Plum Street and East Walnut Street, the site of numerous vehicle accidents from a confusing merge lane, the Plum and Walnut Green Intersection Project integrated green infrastructure (GI), enhanced pedestrian amenities and a roadway realignment to improve traffic safety and reduce stormwater runoff.
After an extremely heavy rain destroyed almost 500 miles of roadway in Colorado, the state is redesigning roadways and the streams they follow to make the roads more resilient to future floods. Rebuilding strategy include armoring road base away from river and constructing floodplain between the road and the river.
Hampton, Virginia created the state’s first environmental impact bond to finance community resilience projects. The city’s resiliency officer led the effort, and partnered with the Chesapeake Bay Foundation, an outcomes-based capital firm, and local partners to make the bond and the storm-water management resilience projects a reality.
Batiquitos Lagoon’s diverse ecosystems was degraded in the 20th century because of heavy agricultural and residential, and transportation runoff. Restoration efforts began in 1997 by local government. Major constructions involved dredging sand from central basin for beach replenishment (1994 – 1995) and placing fine sediment materials from the western into central basin to construct lagoon mouth jetties (1995 – 1996).
Coastal erosion has repeatedly damaged bike paths and parking lots near Ventura, California. Local groups took a decade to agree on the decision to retreat from the ocean to rehabilitate the beach instead of constructing harden structure that limit recreational opportunities.
In northern Vermont, the Vermont Fish and Wildlife Department (VFWD), Connecticut River Conservancy (CRC), and the U.S. Fish and Wildlife Service (USFWS) are working to restore and create riparian buffers to improve habitat for native fish and wildlife, strengthen streambanks, and retain sediment and decrease nutrient loading from agricultural runoff.
The MWRD is working with the village of Robbins to help reduce flooding, restore Midlothian Creek, and create recreational and economic development opportunities to strengthen and revitalize the community. The Robbins Heritage Park and Midlothian Creek Restoration Project helps address overbank flooding through a new stormwater park and pond, along with improvements to Midlothian Creek and an overflow channel.
The Dixon Water Foundation utilizes rotational grazing regimes to rehabilitate grasslands at Mimms Ranch in the Chihuahuan Desert, which was previously degraded by overgrazing. Rotational grazing mimics historical bison movements, allowing pastures long periods of rest and recovery after short disturbances. This promotes soil health and reduces runoff and erosion.
The Dixon Water Foundation employs grazing techniques that mimic historical bison movements to rehabilitate the Chihuahuan Desert grassland from the impacts of overgrazing, which have led to increased erosion, runoff, reduced aquifer recharge, and carbon sequestration. Such rotationally grazed practices improve soil health as cattle fertilize soil with manure and break up surface to allow seeding and water infiltration.
The Paseo de las Iglesias restoration project aims to reverse severe environmental degradation and improve flood resilience along the Santa Cruz River. The project’s main goals are: significant ecosystem revitalization, on-site water reclamation and storage, hybrid green/gray erosion control, historic programming, and public access and recreation.
Massachusetts government initiated the Permeable Paving Materials and Bioretention in the Silver Lake Beach Parking Lot, aiming to reduce runoff volume, improve water quality, and enhance groundwater recharge. The project incorporated permeable paving materials, bioretention cells, and two ten-foot-wide vegetated water quality swales.
The EPA, FEMA, and Rebuild Iowa partnered to plan economic growth and redevelopment of the Iowa City riverfront following the devastation of the 2008 Iowa floods. The primarily goal of the partnership was to add green infrastructure and add open space along the riverfront to reduce future flooding.
Teaneck Creek Park is a low-lying area in a highly urbanized neighborhood of North New Jersey. During storm and rain events, this area experienced flooding, erosion, and produced untreated runoff that degraded Teaneck Creek. This project restored 8 hectares of wetland habitat to mitigate these negative outcomes.
In 2017, the City of St. Louis Park, Minnesota implemented the Rainwater Rewards Program with the goal of increasing awareness and importance of managing stormwater and green infrastructure throughout the city. The program seeks to increase green infrastructure by providing residents with financial and technical assistance to install projects that reduce stormwater runoff on residential properties.