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Speak up. Do you support dam removal on the Neponset River, want to be kept abreast of river restoration developments, or wish to get more involved? Fill-out a Questionnaire.

Learn more. What are PCBs, and how can they affect me?

See a map of the project sites.

Read the Fish Consumption Advisory.

View a letter of support from organizations that support the Neponset River restoration project.

Get updates on Neponset restoration by joining NepRWA's e-mail list. Write to rocklen@neponset.org and request to be added. 

 

 

 

 

 

 

Neponset River Restoration Project

Dam Removal & PCB Cleanup

 

The Opportunity for Neponset River Restoration is Now!

Since the 1970s, an extraordinary improvement in the water quality of the Neponset River has occurred. Untreated industrial wastewater discharges and sewer overflows are gone (although toxic sediments from these historic discharges still remain on the river bottom). Public lands along the waterfront are being opened up for recreational use and a growing number of people are enjoying the river once again. Where private property owners once turned their back on the Neponset, a spate of recent redevelopment projects are helping to reorient neighborhoods back toward the river.

The Neponset River Restoration Project presents a unique opportunity to continue the revitalization of neighborhoods along the river by making it cleaner, more accessible, and more natural. The Project would restore historic spawning runs of herring and shad for 17 miles up the Neponset by removing two obsolete state dams (the Baker Dam in Lower Mills Dorchester and Milton, and the T&H Dam in Hyde Park and Milton), while creating unimpeded canoeing from Walpole to the sea. At the same time, it would help to clean up toxic polychlorinated biphenyls or PCBs that still linger in river-bottom sediments and in the flesh of fish caught in the river. The Project would also reduce the risk of flooding, remove “junk” from the riverbed and restore the stream channel to a more natural shape and flow that will enhance recreation, wildlife and aesthetics. Furthermore, if the Baker and T&H Dams were removed, Massachusetts taxpayers would be spared the multi-million dollar cost of indefinitely repairing and maintaining two obsolete state-owned dams.

See the Summary of Major Benefits of the Neponset River Restoration Project, below, and learn more about its History & Background and Opportunities for Community Participation.

Share Your Opinion, Get Involved, or Just Stay Informed. Once you've reviewed the information on this website, we'd like to get your feedback. If you would like your voice to be heard, or just to be kept informed about the latest developments regarding the Restoration Project, please fill out the Questionnaire. You can also send us your comments and questions or obtain additional information by e-mailing us at staff@neponset.org or by phoning Ian Cooke or Steve Pearlman at 781-575-0354.

Read a letter of support for the Neponset River Restoration Project, signed by major statewide and regional organizations. 

Summary of Major Benefits of Neponset River Restoration Project

Scroll to bottom of page for access to more detailed discussion of benefits.

River Restoration Restore Herring and Shad Runs.  Herring and shad—migratory fish species that swam up the Neponset River to lay their eggs for thousands of years—now have no access to the river beyond the Baker Dam. If the river were open, American shad, blueback herring, and rainbow smelt would come from the ocean to lay their eggs upstream, and their offspring would head back to the ocean in the fall. Shad and herring make up a large part of the diets of popular salt water sport fish such as striped bass and bluefish. Resident freshwater fish species, such as largemouth bass and sunfish, would also benefit. Dam removal is the only way to fully restore herring and shad runs.

River Restoration Will Improve Boating.  Removing the Baker and T&H Dams would greatly improve recreational boating on the Neponset River . The dams and their ponds would be replaced with a calm pools, smooth moving water, riffles and small rapids. The primary hazard to novice boaters—the dams—would be eliminated. The drudgery of carrying boats around dams would be replaced with a continuous “water-trail” from Walpole to Boston Harbor .

River Restoration Will Combine PCB Cleanup with Habitat & Recreational Improvements, while reducing human health risk from eating contaminated Neponset River fish incidental contact with the water and mud along the shore of the Neponset River is safe, even for children; and there is no danger in boating on the river. However, PCB’s in Neponset River sediments have poisoned bottom-feeding fish and pose a significant risk to people who eat them. A state Public Health Advisory warns people not to eat white suckers caught in the river from Walpole to Boston/Milton and to limit consumption of brown bullhead (hornpout) to two meals per month (children, nursing mothers and women who are or may become pregnant shouldn’t eat any). Additional fish species will be tested this summer. Dam removal would require the state to clean up most of the PCBs in the mud, reducing the risk of eating fish from the river and stopping the migration of PCBs into the Neponset River Estuary where health and environmental risks have not yet been assessed. If the dams remain, it is unlikely that any action will be taken to clean up the PCB’s. Even if a cleanup without dam removal were to occur, state hazardous waste rules would allow it to be conducted without regard to stream habitat, recreational use or post-cleanup aesthetics. A recent Boston Globe editorial describing GE’s PCB clean-up of the Housatonic River stated,What had been a tree-lined stream wandering through backyards is now a ‘ditch.’” The Neponset Ecological Restoration Project would save the lower Neponset from a similar fate.

River Restoration Will Reduce Long-term Maintenance Costs for State Taxpayers.   According to a recent study for the state Riverways Program, it would cost approximately $2 million to remove the two dams versus $7.2 million to maintain and operate them for another 30 years. In addition, federal grant money may be available for dam removal where as no such outside funding is available for dam maintenance. 

River Restoration Will Reduce Flooding.  The U.S. Army Corps of Engineers has concluded that the Baker and T&H Dams serve no flood control purpose. In fact, during 1968 during a relatively modest 40 year storm, the Baker Dam caused the Neponset Greenway bike path, the MBTA trolley station and the Wharf Street area to be flooded with up to three feet of water. A failure of the Baker Dam would be particularly dangerous because the dam is part of the foundations of the buildings on either side of the river. The latest engineering inspection of the Baker Dam concludes that it is a “significant hazard” dam, meaning that “failure may cause loss of life and damage to homes (and property).

River Restoration Will Restore Lost Wetlands and other key ecological features of the River.  Removing the dams creates the opportunity to restore a substantial portion of the wetlands that once bordered the river. Wetlands add to the natural beauty of the river, act as a nursery and habitat for a wide variety of fish and wildlife, help hold back floodwaters and filter pollutants out of the water. 

June 2008

 

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