At Ferry Street in Fair Haven, the line shifted to its own tracks running on Middletown Avenue and Foxon Boulevard (CT-80).

East of Guilford the line ran on a short private section before following the Boston Post Road (Route 1) over the New Haven Railroad tracks and through Madison, Connecticut.

The line followed Main Street (CT-602) to Ivoryton, then a private alignment which merged with the Middlesex Turnpike (Route 154) just south of Deep River.

The line ran on a private alignment south through Sachems Head and then west along the shoreline through Leetes Island to Stony Creek.

[1] Morton F. Plant, a railroad heir and entrepreneur, offered financial assistance, investing heavily in the railway, and eventually took control of the operation.

First, it leased the New London and East Lyme Street Railway and built a branch from Flanders along Route 1 and over the Connecticut River bridge to meet the main line at Saybrook.

[2] The same year, the company purchased the Norwich and Westerly Railway system, which represented 60 miles of lines including the Norwich-Westerly line; branches from Westerly to Watch Hill, Weekapaug, and Ashaway; and the N&W-owned Groton and Stonington Street Railway and its Old Mystic branch.

The riverfront location provided a source of water to cool the condensing units and enabled easy access of coal deliveries by boat.

[5] The two-story, reinforced-concrete building initially consisted of two 1,500-kilowatt, 100 percent power factor, three-phase, 25-cycle vertical Curtis steam turbines.

The open space facilitated the use of large equipment and machinery, as well as interior hopper systems to assist movement of coal.

In 1938 the Power House was sold to Whitney Stueck and Fred Sturgis, who operated the Saybrook Yacht Yard at the site through 1946.