of the 1/4 mile bypass. In Mattituck, an old alignment of Main Road (NY 25) exists as Old Main Road from Bray Avenue to west of Sigsbee Road. Southwest of Southold, Main Road originally followed the length of Lower Road and Ackerly Pond Lane between Lower Road and Main Road. To the northeast of the community, another former segment remains intact as Old Main Road between Budd's Pond and Mill Creek to Hashamomuck Pond. East of Greenport, a former alignment of Main Road is located between the creek from Silver Lake and Silvermere Road. In Orient, two former routings of Main Road exist, both in the vicinity of Bight Road. The first, a loop connecting Grandview Drive to NY 25, is located west of Bight Road. The second, a loop providing access to Whalers Road from NY 25, is west of Charles Rose Airport. Reconstruction and widening projects In the early 1970s, the New York State Department of Transportation (NYSDOT) wanted to install frontage roads along a divided NY 25 between Nesconset and Lake Grove as part of a proposed upgrade of NY 347 into a limited-access highway. In the 1960s and 1970s, NYSDOT wanted to realign both NY 112 and NY 25 in Coram. The realignment and widening of NY 25 was to take place between NY 112 and Winfield Davis Road. The interchange Between CR 58 and I-495 in Riverhead was completed as a result of I-495's eastern completion. This interchange was fully operational by 1972. It features grade separated ramps, high-speed banked curves, and interstate standard signing. A traffic light at Manor Road was installed at the time of completion of Splish Splash Water Park in 1991. Suffixed routes NY 25 once had as many as four suffixed routes; two no longer exist. NY 25A () is an alternate route of NY 25 across northern Long Island. The route begins at the Queens Midtown Tunnel in Queens and ends at NY 25 in Calverton. It was assigned . NY 25B () is an alternate route of NY 25 between eastern Queens and Mineola, Nassau County. The route was assigned . NY 25C was a connector between NY 25 in the New York City borough of Queens and NY 25B in western Nassau County that utilized Union Turnpike and Marcus Avenue. It was assigned in the mid-1930s and removed in 1970. NY 25D was a connector between NY