St Lawrence Seaway Development Corp.

  • Federal/State/County
180 Andrews St.
Massena, NY 13662
(315) 764-3200
(315) 764-3235 (fax)
www.greatlakes-seaway.com
Hours:
Monday - Friday: 8:00 AM - 5:00 PM (Eastern)

  • About

    The SLSDC headquarters staff offices are located in Washington, D.C. Operations are located at the two U.S. Seaway locks (Eisenhower and Snell) in Massena, N.Y. More information: greatlakes-seaway.com