Featured Projects

River Island Channel & Floodplain Restoration

Metro, a regional government body, contracted Inter-Fluve to restore an abandoned gravel mine on the Clackamas River. In 1996 a 100-year rain-on-snow flood event caused the mainstem Clackamas River to breach a levee and flow through this active gravel mining operation. Goals of the project included: to strategically implement restoration actions in areas where existing processes are insufficient to create or maintain highly functioning habitats, restoring perennially hydrologic connectivity to tributary habitats, and supporting multiple values including salmonids, stillwater species, and wildlife habitat, riparian and floodplain forests, water quality and recreation. Learn More >


Dam Removals

From California to Maine, dams across the United States are being removed to help fish, improve safety and boost recreation. We’ve worked on over 100 dam removals and performed construction oversight on over 35.


Estuary Restoration

Estuaries are dynamic ecosystems where oceans, rivers and human economies converge; they’re also critical to rearing grounds for fish and wildlife. Across the country, we’re reconnecting and restoring these habitats.


Wetlands & Peat Bogs

Holistic ecological restoration of cranberry bogs to native stream and wetland ecosystems was pioneered by Inter-Fluve. Today, we’re applying lessons learned to cranberry farms throughout New England.

Featured News

Society for Ecological Restoration recognizes Eel River project with Restoration Project Award

The New England Chapter of the Society for Ecological Restoration (SER) recognized the SumCo and Inter-Fluve team in October 2018 with the SER New England Chapter’s Restoration Project Award for the Eel River Headwaters Restoration project. The award was given for significant contribution to ecological restoration in the New England region. More about the Eel River Headwaters Restoration project here.

Bloede Dam Breached

Bloede Dam, the first dam on Maryland's Patapsco River, was loaded with explosives and breached on September 11, 2018 after 10 years and millions of dollars. This exciting step improves fish passage for several fish species, eliminates a public safety hazard, and improves recreational opportunities in the surrounding state park. Check out the video of the breaching below. https://www.youtube.com/watch?v=Yxl98RbL1KE#action=share