The Atlantic Shore Line Railroad was a pioneering electric trolley line that operated throughout York County, Maine in the early 20th century. Founded on February 9, 1900, it grew to operate over 87 miles of track, making it the second longest trolley line in the state. This extensive network provided vital passenger and freight service that connected coastal and inland communities across southern Maine.
The foundation of the Atlantic Shore Line Railroad began with its initial charter, issued by the Maine legislature in March 1893. The railway's formal articles of association were filed in October 1899, with the charter receiving final approval on February 9, 1900, in Augusta, Maine.
The railroad's founding team included experienced railway executives who already held officer positions with the Mousam River Railway and the Sanford & Cape Porpoise Railways, bringing valuable expertise to this ambitious regional transportation project.

The charter established the legal framework for what would become one of Maine's most significant electric railway systems, setting the stage for decades of service to the region's communities.
Connected Cape Porpoise, Kennebunkport, Biddeford, Wells, Ogunquit, York, York Beach, and Kittery along Maine's scenic coast
Extended service to Kennebunk, Alfred, Sanford, Springvale, Eliot, and South Berwick, linking coastal and interior regions
Offered ferry service from Kittery to Portsmouth, NH via the ferry "Kittery" (built 1900), creating a vital interstate link
The extensive network was powered by the Kittery Point power plant, which supplied electricity to the entire trolley system across York County. This interconnected transportation web represented an engineering achievement for its time.
Transported 5 million passengers in 1907, demonstrating the vital role the railroad played in regional mobility
Hauled 50,000 tons of coal annually, along with substantial timber products and other freight
Electric freight operations continued until June 1949, when they were replaced by diesel locomotives
The Atlantic Shore Line maintained important freight interchange connections with the Boston & Maine Railroad and the Biddeford & Saco Railroad, facilitating the movement of goods throughout the region.
Initial railway operations begin following charter approval
Acquired Mousam River Railway, Sanford & Cape Porpoise Railway, and Portsmouth, Dover & York Railway
Established multiple connection points with Boston & Maine Railroad, enhancing regional transit integration
Completed final expansion phases, ultimately reaching over 87 miles of track throughout York County

The iconic locomotive #100, built in 1906 by the Laconia Car Company, represented the pinnacle of the Atlantic Shore Line's rolling stock. This historic vehicle has been preserved and meticulously restored at the Seashore Trolley Museum, where it stands as a testament to early 20th century railway engineering.
The railroad's diverse fleet operated entirely on electric trolley lines, representing an early adoption of electric traction technology for both passenger and freight service.
The rise of automobiles and changing transportation needs led to the progressive abandonment of many routes throughout the 1920s and 1930s as ridership declined.
The last electric trolley freight service concluded in 1949, marking the end of the railroad's original operational model after nearly half a century.
The Seashore Electric Railway was formed in 1939 with the mission of preserving these historic electric cars before they disappeared completely.
Today, four miles of the original right-of-way are preserved by the Seashore Trolley Museum, which maintains a demonstration railway where visitors can experience this important chapter in Maine's transportation history.
The Atlantic Shore Line Railroad played a vital role in the early 20th-century development of York County, Maine. As one of the state's largest and longest electric trolley systems, it fundamentally transformed how people and goods moved throughout the region.
The railroad supported passenger travel, freight transport, and regional economic growth during a critical period of industrial and commercial expansion. Its extensive network connected coastal communities with inland towns, facilitating trade and tourism that helped shape southern Maine's development.

Through the dedicated efforts of the Seashore Trolley Museum and railway historians, the Atlantic Shore Line's legacy continues through restored equipment, preserved routes, and educational programs.
The railroad's 87+ miles of track represented a remarkable achievement in regional transportation infrastructure that helped define Maine's early 20th century landscape.
History of the Atlantic Shore Line Railroad