Interstate 495 (Maine) - History

History

The Falmouth Spur was built as part of the second phase - Portland to Augusta - of the Maine Turnpike, opened December 13, 1955, as well to allieviate traffic on Falmouth Road, the town's east to west connector, connecting Route 9 (Middle Road) and Routes 26 and 100 (Gray Road). The spur connected interchange 8, a trumpet interchange with the mainline Turnpike, with interchange 9, another trumpet at U.S. Route 1 in Falmouth. (The west end later became exit 9 - exit 8 was moved south to the new Westbrook interchange - and the east end became exit 15 on I-95.) The toll booth was just west of US 1, right where the Spur now crosses over Interstate 295. The part of US 1 that it connected to had been built ca. 1948 as a realignment (old US 1 is Route 88), and the Spur connected the Turnpike, which headed inland at Portland, with US 1, a major route to and beyond Brunswick via the shore.

When the Interstate Highway System was designed in the 1940s and 1950s, the main route along the east coast, numbered Interstate 95 in 1957, was assigned to the route via Brunswick to Augusta. Thus the Falmouth Spur became I-95, and the Turnpike was unnumbered between the Spur and Gardiner. Ca. 1960, the piece of I-95 (now I-295) north of the Spur was completed, and a partial interchange was added at its crossing with the Spur. The toll booth was moved west at that time.

The Turnpike stayed unnumbered between Falmouth and Gardiner until around 1988, when it was added to the Interstate System as I-495. This allowed it to have a speed limit higher than the National Maximum Speed Limit of 55 miles per hour (89 km/h), as per the Surface Transportation and Uniform Relocation Assistance Act of 1987.

In 2002, the Maine Department of Transportation submitted a proposal to the American Association of State Highway Officials to relocate I-95 along I-495 and extend I-295 along I-95 to Gardiner, leaving the Falmouth Spur unnumbered. This was approved by AASHTO on November 5, 2002, with one change - the Falmouth Spur was assigned the Interstate 495 designation. The Maine DOT and Maine Turnpike Authority decided not to sign or publicize I-495 to minimize confusion; maps of the changes distributed to the public included the remark "existing I-95 becomes a ramp" or just "Falmouth Spur" pointing to the Spur. Signs were changed from January 5 to January 10, 2004 A prominent sign was posted near the New Hampshire state line informing travelers of the change, and that the information center had new maps.

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