INTERSTATE NAVIGATION CO.

  • Engineering District : 1 0
  • TSO Series Number : 5 0
  • Principal Commodity List : PASSENGERS, VEHICLES AND FREIGHT 0
  • Area of Operation : POINT JUDITH TO BLOCK ISLAND, RI; NEWPORT AND BLOCK ISLAND 0
  • Vessels
    • Specialized Carrier : 5 0
    • Vessels List : ANNA C, ATHENA, BLOCK ISLAND, CAROL JEAN, MANITOU 0
  • Address
    P. O. BOX 482 NEW LONDON CT 06320
  • Contact
    • Phone : 860-442-9553 0
P. O. BOX 482 NEW LONDON CT 06320

Managed Vessels

ANNA C

  • Type : 13 0
  • Construction : A 0

ATHENA

  • Type : 13 0
  • Construction : C 0

BLOCK ISLAND

  • Type : 13 0
  • Construction : A 0

CAROL JEAN

  • Type : 13 0
  • Construction : A 0

MANITOU

  • Type : 13 0
  • Construction : A 0

Related News [INTERSTATE NAVIGATION CO.]

Saronic Completes Multi-Day Corsair Deployment with 24/7 Operations

Saronic Completes Multi-Day Corsair Deployment with 24/7 Operations

Last month, the Saronic team completed a continuous, week-long, day and night test operation designed to push the limits of Corsair, their 24-foot Autonomous Surface Vessel currently under contract with the U.S. Navy.Conducted and funded by the company as part of ongoing independent research and development efforts

SDHI Inks Deal to Build RNO Training Ship

SDHI Inks Deal to Build RNO Training Ship

Swan Defence and Heavy Industries Limited (SDHI), India’s largest shipbuilding and heavy fabrication company, won a defense export order from the Government of Sultanate of Oman to supply a state-of-the-art training ship. The vessel that will support the Royal Navy of Oman’s (RNO) advanced naval training and maritime operations, is expected to be delivered within 18 months.Measuring 104.25 x 13.

HII’s Newport News Shipbuilding Marks 140 Years of Service

HII’s Newport News Shipbuilding Marks 140 Years of Service

HII’s Newport News Shipbuilding division is marking 140 years of service to the US today, January 28, 2026.On Jan. 28, 1886, Collis P. Huntington, a businessman whose investments enabled completion of the U.S. transcontinental railroad, turned his focus to shipbuilding, establishing what was first chartered as Chesapeake Dry Dock and Construction Co.

France Detains Captain of Suspected Shadow Fleet Tanker

France Detains Captain of Suspected Shadow Fleet Tanker

The captain of an oil tanker intercepted by the French navy has been detained under investigations into whether it was operating under a false flag, the Marseille prosecutor’s office said on Sunday.The vessel named Grinch was seized in the Mediterranean on Thursday, then diverted to anchor off the French port city

Mitsubishi Shipbuilding Delivers Vessel KEYAKI

Mitsubishi Shipbuilding Delivers Vessel KEYAKI

Mitsubishi Shipbuilding delivered the large car ferry KEYAKI, built for Shin Nihonkai Ferry Co., Ltd. and Japan Railway Construction, Transport and Technology Agency (JRTT), at the Enoura Plant of MHI's Shimonoseki Shipyard & Machinery Works in Yamaguchi Prefecture on the November 11, 2025.

Mitsubishi Shipbuilding Christens Car Ferry HAMANASU

Mitsubishi Shipbuilding Christens Car Ferry HAMANASU

Second of Two Large Car Ferries Ordered by Shinnihonkai Ferry and Japan Railway Construction, Transport and Technology Agency Second ferries in Japan to use a buttock-flow stern hull and ducktail design, providing energy savings of 5%  Delivery scheduled for June 2026, planned to go into service between Otaru and MaizuruMitsubishi Shipbuilding Co., Ltd.

What do Russia–China Dynamics Mean for the Icebreakers Market

What do Russia–China Dynamics Mean for the Icebreakers Market

The Arctic is no longer a remote expanse beyond the edges of global commerce — it is now a contested arena where strategic competition, energy development, and maritime innovation converge. As climate change accelerates sea ice retreat, previously impassable waters are opening to navigation for longer periods each year.

China Oil Port to Ban Shadow Fleet

China Oil Port to Ban Shadow Fleet

Terminal operators in a major oil port in east China's Shandong province are set to introduce measures to ban shadow fleet vessels and curb visits by other old tankers, according to an official notice seen by Reuters and a tanker tracker.The measures, to take effect from November 1, would ban vessels using fake IMO numbers and ships of 31 years or older

Curtin Maritime to Build Eight Hybrid Tugboats for $160M

Curtin Maritime to Build Eight Hybrid Tugboats for $160M

While political winds in the U.S. have significantly tampered many ‘green’ projects, Curtin Maritime is domiciled in California, which is globally known for its strict environmental initiatives. To that end, Curtin Maritime inked a contract recently to invest $160m for eight new hybrid-electric tugboats, vessels being built by Snow & Co.

Satellites Help NOC Track Tidal Change for Safer Port Operations

Satellites Help NOC Track Tidal Change for Safer Port Operations

Scientists at the UK’s National Oceanography Centre (NOC) in Liverpool have used satellite data to create insight into the Mersey River that will help port operators be smarter about managing complex navigation channels. Through a project focused on Liverpool’s famous river and funded by the UK Space Agency

First Deep-Sea Mining Company Asks Trump for International Permit

First Deep-Sea Mining Company Asks Trump for International Permit

Deep-sea mining firm The Metals Co asked the Trump administration on Tuesday to approve its plans to mine the international seabed, making it the first such company to seek the government's permission to operate outside U.S. territorial waters.Last week President Donald Trump signed an order aiming to jumpstart mining in both domestic and international waters in an attempt to boost U.S.

Video Captures Ship Impact on Stena Immaculate

Video Captures Ship Impact on Stena Immaculate

Newly released video footage captured by advanced AI-powered cameras has provided crucial insights into the collision between the container ship MV Solong and the U.S.-flagged tanker Stena Immaculate off the port of Grimsby earlier this week.The footage, recorded by Orca AI’s SeaPod lookout unit mounted on the anchored tanker Ionic Aspis, reportedly shows the exact moment of impact.