The Trinity River basin has been degraded by human activities for almost two hundred years, leading to a decline in available salmonid habitat and populations. The Trinity River Restoration Program (TRRP) was created in 2000 to restore salmon and steelhead populations. The project also aims to restore the river through flow management, streambank restoration, and riverbed improvement. 

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.

Bird Track Springs is a 2-mile reach of the Upper Grande Ronde River in eastern Oregon that has been degraded and altered by human activity. The once multi-threaded, well-connected river and floodplain became a single-threaded river with little connectivity and degraded habitat. This project aims to reconnect the river to its floodplain, increase habitat complexity, and restore salmonid populations. 

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. 

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. 

With a growing push to remove low-head dams due to safety concerns and the potential for ecosystem improvement, Corydon, Indiana was approached by The Nature Conservancy to remove two dams owned by the Town. The dams blocked potential habitat for the endangered hellbender salamander.

In 1992, Congress passed the Elwha River Ecosystem and Fisheries Restoration Act, authorizing the removal of dams to restore the Elwha River's altered ecosystem. The Elwha Dam and Glines Canyon Dam were removed in 2011, allowing water to flow freely from the Olympic Mountains to the Strait of Juan de Fuca.

The Nature Conservancy aimed to restore 7,100 acres of farmland in Emiquon into a functional floodplain that sustains native species. In 2007, 180,000 trees, 8,000 pounds of seed, and 90,000 upland shrubs and trees have been planted in 1,400 acres of Emiquon. Non-native fish have been removed and native fish have been introduced into these new waters.

The Herring River Restoration Project in Massachusetts will replace the restrictive dike at the mouth of the river with a bridge that will allow tidal water to flow freely between the river and Wellfleet Harbor. This will restore the biodiverse, productive, estuary that existed pre-dike construction.  

Horner Park is a 14-acre restoration area along the north branch of the Chicago River. This is a part of a larger goal to reconnect sustainable habitat along the Chicago River. Hydrogeomorphology, native plant communities, and riparian buffers were restored at this site. 

Dams in the Penobscot River have prevented fish passage from the Gulf of Maine for centuries. To restore connectivity, the Penobscot River Restoration Trust built the largest nature-based fish bypass channel in the United States. This project will help restore Atlantic Salmon populations, and the cultural heritage of the Penobscot Nation.  

The Kenilworth Marsh tidal wetland restoration project, led by the National Park Service, aimed to restore areas in Washington, D.C. that were degraded from altered hydrology and contamination. The project team placed 130,000 cubic yards of dredged material to restore hydraulic function of the tidal marshes, installed over 350,000 native plants, and removed invasive purple loosestrife and phragmites.

The Kissimmee River Restoration project aimed to restore over 40 square miles of river/floodplain ecosystem in Central and South Florida after two major hurricanes in the late 1940s caused mass flooding and property damage throughout the upper basin. The project encompassed two primary components: backfilling the C-38 canal and changing water level management practices.

The Lower Boulder Creek Floodplain was degraded by gravel mining. This creek’s natural stream geomorphology was restored by adding riffles, pools, and large woody debris. The creek was reconnected to its historic floodplain, creating vegetated seasonal wetlands, improving water quality, and reducing flash flood risk. 

A 1960s-era levee on the Dungeness River resulted in a straighter channel, increased water velocities, reduced habitat, and a decline in the effectiveness of the levee. This project removed part of the old levee, built a setback levee, and relocated a road bisecting the floodplain. 

This project aims to clear dead trees and debris deposited by Hurricane Andrew in 1992 from mangrove tidal passageways in Matheson Hammock Park on Biscayne Bay. In a five-year effort to prevent further damage to this sensitive habitat, the debris are removed by volunteers using canoes and manual labor instead of large machinery.

This project removed three aging dams and replaced a fourth on the Mill River in Taunton, Massachusetts to increase the area’s ecological and community resilience and reduce flooding. These efforts reconnected more than 48 kilometers of rivers and streams linked to Narragansett Bay. 

The San Antonio River was historically modified to reduce flooding, leaving it devoid of its ecological function. The Mission Reach Ecosystem Restoration and Recreation Project aimed to reduce flooding, restore the riverine ecosystem, and provide recreational opportunities to a 13-kilometer stretch of the river.  

The Puyallup River in Washington state is channelized and disconnected from its floodplain due to levee construction and logging in the region. This has led to habitat degradation for important fish species and a higher risk of flooding and damage to important transportation infrastructure. This project will reconnect over 28 hectares of the floodplain. 

Planned and implemented by the Tribe’s Fish and Wildlife Department, this unique program of watershed restoration and riparian conservation has been rooted in traditional Zuni cultural values. The causes of degradation were man-made dams, channelization, and invasive plant encroachment (i.e. Tamarix pentandra). The project reintroduced 23 beavers to sites with impaired hydrologic flow regimes.