OUR WORK

Every day, on every project, we are helping
to create a more adaptive, resilient, and
sustainable world.

Secaucus High School Marsh Restoration

The size of this restoration was 35 acres and included 65,000 CY of excavation that included 55,000 CY of marsh plain excavation, 10,000 CY of channel excavation and 16,000 CY of imported sand to construct high marsh. New canals were excavated to allow the site to tidal flush in order to establish a new low marsh. Following the restoration a 2,700 LF raised boardwalk was constructed to allow pedestrian access from Mill Creek Park to Secaucus High School along the river.

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Sylvan Lake Living Shoreline, Avon/Bradley Beach, NJ

Sylvan Lake is a 17 acre coastal lake connected to the Atlantic Ocean in the Jersey shore towns of Avon and Bradley Beach. Over decades of a highly developed watershed, the lake’s freshwater sources have shifted from natural inputs to stormwater and roadway runoff. SumCo Eco implemented one of the earliest living shoreline projects in New Jersey – and the outcome was dramatic.

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Hepburn Preserve Living Shoreline, Old Saybrook, CT

The former estate of Katharine Hepburn is now the backdrop for a new living shoreline that is stabilizing a severely eroding beach and dune system on the coastal spit sheltering wetlands, a salt pond and tidal stream that make up the Hepburn Family Preserve. SumCo Eco was able to assist in the design, and ultimately the construction, of this award-winning project using state-of-the-art construction techniques and materials.

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Columbia Lake Dam, Knowlton, NJ

The Columbia Lake Dam was ranked by conservation groups in the top 5% of dams with the highest negative impacts on the East Coast. This dam removal restored connection to the third largest New Jersey tributary to the Delaware, improving water quality in a river that supplies drinking water for 17 million people in four states. The Columbia Lake Dam removal has become a model for the collaboration and partnership efforts needed to remove dams and restore rivers.

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Teaneck Creek Restoration, Teaneck, NJ

SumCo Eco remediated historic debris and landfilled materials that predated the establishment Teaneck Creek Park. Large areas were regraded, seeded and planted with native wetland plugs, herbaceous plants and riparian tree and shrub species to restore wetland habitats. The project improved water quality and water infiltration while restoring habitat for wildlife. Public access amenities included repairs and replacements of footbridges and trails that were impacted by washouts and dense invasive species stands.

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Gateway Wetlands Mitigation

Restored a tidal wetland marsh for the NJ Department of Transportation. This mitigation project consisted of excavating a trench through an existing degraded and drowning marsh in order to drain the area of impounded water and restore tidal flush to a newly created wetland, including the construction of both high marsh and low marsh planting areas.

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Kerite Dam Removal and River Restoration, Seymour, CT

The Kerite Dam (aka Seymour Dam) was initially constructed in the 1850s across the Bladens River, just upstream from its confluence with the Naugatuck River in Seymour, CT. Over time, wear and tear overwhelmed the stone structure.
The dam removal and pond excavation relieved this flooding as well as water seepage into adjacent buildings. The removal and remediation of sediment improved water quality and aquatic habitat along the upstream riparian corridor.

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Ocean Avenue Seawall, Marblehead, MA

Constructed for the Town of Marblehead, MA, this project included a new concrete retaining wall, and a new rock revetment on the seaward side of the concrete wall. Large stones were placed for the toe of the revetment and wooden fencing installed along the concrete wall.

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Hellcat Trail Boardwalk Replacement, Newburyport, MA

The Hellcat project involved constructing a 4000 lineal foot helical supported boardwalk for the U.S. Fish and Wildlife service. The location was a premier bird watching area used by tens of thousands of birders each year. The project was completed in eight months.

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Narrow River Resiliency Project Narragansett, RI

SumCo Eco implemented a cutting edge coastal resilience strategy to address salt marshes impacted by sea level rise on Rhode Island’s Narrow River where it flows through the John H. Chafee National Wildlife Refuge. Working with The Nature Conservancy in partnership with USFWS and the Rhode Island Coastal Resources Management Council, SumCo used the innovative technique of thin-layer deposition of dredge material to create and enhance the eroding and “drowning” marsh resources of this tidal estuary while increasing climate resilience for Narragansett communities.

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Upper Roberts Dam Removal, City of Northampton, MA

After years of partner efforts, SumCo Eco removed the Upper Roberts Meadow Reservoir Dam in 2018 which at the time, was the tallest dam removed in the state. The project was executed in multiple phases that included staged release of impounded sediment, along with management and monitoring of sediment mobilization to ensure no flooding downstream and no impacts to infrastructure.

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Arlington Reservoir, Arlington, MA​

This project consisted of the demolition and removal of existing park amenities, followed by the construction of a 1-mile stabilized stone dust trail, a new playground with three timber-framed overlooks, paved parking lots, and other site amenities.

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Russell Park, Keene, NH

This park project consisted of existing park demo, new field, site amenities, drainage, road work, parking lots, sidewalks, restroom building, landscaping, playgrounds, and
stream restoration.

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Long Beach Dyke Repair, Plymouth, MA

Originally constructed in 1901, the stone dike protects the 2.8-mile barrier beach and was significantly damaged during the blizzard “Juno” in 2015. The Army Corps of Engineers contracted SumCo Eco in efforts to rebuild and repair the damaged dike. With the structure vulnerable to future storm events, this project was essential in increasing coastal resiliency as Long Beach provides shelter between Plymouth Harbor and Cape Cod Bay.

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Coonamessett River Bog Restoration

Phase 1 of this 2-phase project consisted of the removal of Lower Bog dam, installation of a public access boardwalk, reconstruction of the river channel, and restoration of 17 acres of wetlands. Then in Phase 2, SumCo Eco removed the Middle Bog dam, installed a public access boardwalk and restored 39 acres wetlands. Additional work included the replacement of three failing culverts with a large box culvert – which will allow migratory fish to access their upstream habitat, including the 158-acre Coonamessett Pond.

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Coir Envelope Installation, Newburyport, MA

Coir envelope installation designed to protect an existing high-end bed and breakfast series of houses from nor’easter storm impacts. The envelopes were 3’ wide x 3’ high and extended approximately 210 lineal feet from the ends of each property. The envelopes were filled with sand and held in place with posts. This is one of the earliest “soft” solutions allowed by the MDEP for stabilizing and protecting a coastal dune. The installation involved installing 5 terrace levels, each 3 feet high starting 3 feet below the beach face and extending to the top of the existing dune on the beach side of the housing structures.

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