Mailing Address:

Chesapeake Stormwater Network
117 Ingleside Ave.,
Baltimore, MD 21228

Contact Information

8030 Main Street, 3rd Floor
Ellicott City, MD 21043

CSN is located in the heart of historic Ellicott City overlooking the scenic Patapsco River. Our office is located at the bottom of the hill, close to the train bridge, on the third floor of what used to be the old Railroad Hotel. The entrance is located directly across from the Ellicott City clock.


Sometimes, there are parking spaces on Main Street, but the best approach for free parking is Parking Lot A off Oella Avenue next to the Trolley Stop Restaurant. From here, it is just a short walk across the Patapsco River Bridge to the office.

There are several other lots along Main Street that can be explored. Please be aware of parking restrictions in order to avoid ticketing.

Email Us, We would love to hear from you

Chesapeake Stormwater Network
117 Ingleside Ave, Baltimore, MD 21228

Tom Schueler

David Wood