Frequently Asked Questions
What's happening in the canal?
In 2010, the Gowanus Canal was designated a Federal Superfund site by the U.S. Environmental Protection Agency (EPA). This spurred a $500 million clean-up process to dredge an average of 10 feet of contaminated sediment from the bottom of the canal, and cap the native sediment below.
The cleanup of the canal is a long ongoing process. The dredging is divided into phases, along three sections of the canal. Key elements of the cleanup include dredging contaminated sediment, stabilizing and capping areas with clean material, and installing infrastructure to reduce further contamination.
The Dredging
Black mayonnaise, the local term for the combination of chemicals, sewage, coal tar, decomposed organic matter and other contaminants, is being scooped off the bottom of the canal. The dredged sediment is then processed and has been managed in different ways, such as being trucked out of state or transformed into a material that can safely be used to cover landfills, according to the EPA.
Stabilization & Capping
A solidifying material is mixed with the sediment to form a solid layer to prevent mobile liquid tar from moving upwards into the water. A multi-layered cap is then placed on top of the in-situ stabilization. The cap includes clay, activated carbon, sand, an ‘armor’ layer of articulated concrete mats, and a final layer of sand and stone to recreate habitat.
Reducing Future Contamination
Two CSO (combined sewer overflow) retention tanks are being built along the canal. Additionally, barrier walls were constructed to prevent future spread of coal tar from uplands areas into the canal.
The overall cleanup is projected to last through 2030.
Are YOU dredging the canal?
No, the PRPs (Potentially Responsible Parties) who are paying for the canal cleanup are working with contractors who are doing the work.
So why are you called the Dredgers?
Our founders were advocates for the clean-up of the canal and named our group after the future they hoped they’d see come to fruition.
Is canoeing in the canal safe?
Yes! The canal is one of the safest waterways in NYC, with very little wind, waves or commercial traffic in the interior of the canal. As far as the water quality – we like to say we operate with subway rules: you wouldn’t lick a pole on the subway, don’t lick the canal!
At our 19th St. Bunker Launch there is more commercial traffic and we’re more exposed to the elements. That’s why we primarily run guided tours from that location– you won’t be on your own on the water.
Why do you use canoes and not kayaks?
We find that canoes help reduce splashing and extended contact with the water. We look forward to the days when we can safely launch the public in kayaks!
How can I get involved?
Just come on by! We’re an all-volunteer organization, and we’d love your help. Send us an email, reach out on instagram or just stop by an event and introduce yourself.
Can I rent a canoe?
We don’t rent canoes. Our boats are available during our public walk-up programming, for our guided tours, or for Steward Members who have completed the steps for equipment access.
Does membership allow me boat storage?
No, we don’t offer private storage. Any boats stored at our sites are put to use in our public programming.
Where can I park?
Street parking is available at both our Boathouse (165 2nd St.) and Bunker (2 19th St.) locations. We recommend you read the posted signs carefully. There is a parking garage next to our boathouse on 2nd St. but we are not affiliated with it. Visitors have told us it’s easy to park there though.