OUR WORK

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

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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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

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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

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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

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Eel River Headwaters Restoration – Plymouth, MA

The Eel River Headwaters Restoration has been a signature effort for the Commonwealth of Massachusetts environmental restoration efforts since its completion in 2010. This $2 million project designed and constructed between 2007 and 2010 included channel reconstruction, dam removals, culvert replacements, grading, and extensive plantings across a 60-acre site. Benefits of the project include fish passage and habitat for diadromous and resident fish; improved water

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Flock Process Dam – Norwalk, CT

SumCo was contracted by the City of Norwalk to remove the Flock Process Dam located along the Norwalk River. Work included the construction of concrete retaining walls, river bank restoration, restoration of the river bed with rock riffle at the dam location, tree planting and wetland seeding, and the construction of a bituminous concrete parking lot.   The 15’ high dam, constructed in 1850, supplied

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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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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

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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

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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

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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

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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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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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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

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South Wilmington Wetlands Park – Wilmington, DE

This project involved the remediation of a 14 acre highly contaminated site, regrading and replacement with clean soils, and installation of boardwalks and trails. Planting included 4.7 acres of upland and wetland seeding/plugs, container trees and plants to create forested wetlands, emergent marshes, scrub shrub habitats and upland meadows. Restoration of this industrial site with Green Infrastructure creates a stormwater management facility to mitigate chronic

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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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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

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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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Howland Dam Fish Bypass Channel – Howland, ME

As part of the Penobscot River Restoration,  the Howland Bypass project increased access to over 1,000 miles of habitat for 11 different species of sea-run fish, while retaining the Howland Dam and impoundment for the community to enjoy.  The bypass channel enables fish to continue up the Piscataquis River, which meets with the Penobscot just after the channel.  

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Maintenance Dredging Bradford Bay – Accomack County, VA

This project consisted of hydraulic maintenance dredging of waterways on the east coast of Virginia in Bradford Bay where approximately 123,000 cubic yards of material were removed from the Lower Bradford Channel, Upper Bradford Channel, and Finney Creek Channel.   These channels had filled in to the point where some areas were dry ground during low tide which hampered the marine navigation required for Bradford

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Sen. Joseph Finnigan Park Restoration – Dorchester, MA

Situated on the Neponset River in Boston’s Dorchester neighborhood is this award-winning restoration project of the former Shaffer Paper Company site. What had been an abandoned industrial site and stockyard is now the Senator Joseph Finnegan Park, an asset for the entire community to enjoy.

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Sawmill Ecological Restoration – Acushnet, MA

Restoration of a 19-acre former sawmill to a naturalized area and park with walking trails, boardwalks, and piers. Over the course of the project, a dam was removed, fishway installed to increase herring populations and several buildings were dismantled. More than 3 acres of impervious surface was excavated, concrete river walls were removed, and a bridge crossing was eliminated. During 2014, the natural river bank

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Willards Woods – Lexington, MA

This river daylighting project involved the removal of 250′ of stone culvert and 30′ of concrete pipe to daylight a stream that had been buried for the previous 150 years. The project included improved emergency and pedestrian access via installation of two prefabricated steel truss bridges.

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Pond Lily Dam Removal – New Haven, CT

The removal of the 180′ Pond Lily Dam and ensuing restoration of the upstream river channel included construction of approximately 200′ of riffles and rock features. An additional pair of stone weirs were constructed further upstream to provide scour protection to Pond Lily Ave. Bridge. Resource areas were seeded.

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Muddy River Flood Reduction – Boston, MA

Subcontracted by Charter Contracting Company, LLC to help complete the first Phase I of the high profile Muddy River Flood Damage Reduction and Environmental Restoration Project, SumCo Eco handled the landscaping, seeding and planting elements of the plan.

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Haskell Pond Dam Rehabilitation – Gloucester, MA

The Haskell Pond Dam holds back a 60-acre impoundment which serves as a drinking water supply for the city of Gloucester, Massachusetts. The dam was originally built in 1902 and was classified as a high-hazard structure in poor condition. This challenging dam improvement project included construction of a steep-sloped spillway channel.

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Blair Pond Restoration – Cambridge, MA

Located within the Alewife Brook Reservation in Cambridge, Massachusetts Blair Pond had over many years experienced deteriorating water quality and become inundated with contaminated sediment as part of the the city’s combined stormwater catchment system. SumCo Eco dredged over 8,000 cubic yards of sediment to expand water storage capacity, among other improvements.

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Little Bummet Brook Relocation – Shrewsbury, MA

Little Bummet Brook was formerly located between the customer parking lot and the retail shops at Shrewsbury Village. Once an aesthetic feature of the retail complex, shoppers were now crossing an aging, narrow pedestrian bridge, harming the shopping experience- in any season.

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Mink Meadows Marsh Restoration – Tisbury, MA

Located in Tisbury, Massachusetts the Mink Meadows Association and surrounding area had in recent years experienced deteriorating conditions for recreation due to excessive presence of mosquitos emanating from degrading marsh conditions.

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Science Center Beach Nourishment – Nahant, MA

The Northeastern University Marine Science Center located in Nahant, Massachusetts includes a parking area adjacent to a town beach. Battered by severe weather, the beach had suffered severe erosion over time. SumCo Eco-Contracting constructed a dune for shoreline protection and beach nourishment, saving the parking lot from yet another ferocious storm soon after project completion.

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