Question: How long is the canal on the south east side of which Canoe Place opened?

Context paragraphs:
ICF canoe marathon: ICF canoe marathon is an International Canoe Federation governed sport in which athletes compete over long distances.  The race usually starts and ends at the same place, and includes portages. Race categories vary by the number of athletes in the boat, the length of the course, and whether the boat is a canoe or Kayak.  In a kayak, the paddler is seated in the direction of travel, and uses a double-bladed paddle.  In a canoe the paddler kneels on one knee with the other leg forward and foot flat on the floor inside the boat, and paddles a single-bladed paddle on one side only.  The World Championships were held every two years from 1988, becoming annual in 1998.

Second Avenue (Manhattan): Second Avenue is an avenue on the East Side of the New York City borough of Manhattan extending from Houston Street at its south end to the Harlem River Drive at 128th Street at its north end.  A one-way street, vehicular traffic on Second Avenue runs southbound (downtown) only, except for a one-block segment of the avenue in Harlem.  South of Houston Street, the roadway continues as Chrystie Street south to Canal Street.  A bicycle lane in the left hand portion from 55th to 34th Street closes a gap in the Manhattan Waterfront Greenway.  The bike lane extends from 125th Street all the way down to Houston Street.  Second Avenue passes through a number of Manhattan neighborhoods including (from south to north) the Lower East Side, East Village, Gramercy Park, Murray Hill, Upper East Side, Yorkville and Spanish Harlem.

Canoe Place (LIRR station): Canoe Place was a station stop along the Montauk Branch of the Long Island Rail Road and first opened as a low cinder platform on the south east side of Shinnecock Canal around 1935.  The station was in service for "Fisherman's Special" trains and was closed around 1953.  The station was located between Hampton Bays and Suffolk Downs Stations.  The hamlet where it was located is now part of Hampton Bays, New York.

York Avenue / Sutton Place: York Avenue and Sutton Place are the names of a relatively short north-south thoroughfare in the Yorkville, Lenox Hill, and Sutton Place neighborhoods of the East Side of Manhattan, in New York City.  York Avenue runs from 59th to 91st Streets through eastern Lenox Hill and Yorkville on the Upper East Side.  Sutton Place and its southern extension runs through their namesake neighborhood along the East River and south of the Queensboro Bridge, with Sutton Place South running from 53rd to 57th Streets and Sutton Place from 57th to 59th Streets.  The street is considered among the city's most affluent, and both portions are known for upscale apartments, much like the rest of the Upper East Side.

East Side, Buffalo: The East Side is a large, predominately black district of Buffalo.  The East Side is bordered by Main Street to the west, Winspear Avenue to the north, Buffalo River to the south, and the town of Cheektowaga to the east.  Although the Lovejoy District is technically part of the East Side (in fact, it is the easternmost portion thereof), it has a somewhat different cultural composition compared to the inner-city nature of the rest of the East Side.  It is the physically largest neighborhood in Buffalo.  It is characterized by many large, ornate 19th-century churches, most of them Roman Catholic; and modest 1 ⁄ -story wood-frame cottages, many with progressively smaller rear additions that give the houses a telescoping effect.  The East Side was once the second largest Polish-American community in the United States.  Jefferson Avenue and the intersection of Broadway and Fillmore serve as the most heavily used commercial districts.

Suffolk Downs (LIRR station): Suffolk Downs was a seasonal flag stop along the Montauk Branch of the Long Island Rail Road and was first built in 1907.  The depot was purchased by an LIRR employee and was moved to Peconic Bay at an undisclosed location on February 6, 1923 and the station stop itself closed around 1927.  The station stop was located between Canoe Place and Shinnecock Hills Stations.

Butler Place Historic District: Butler Place Historic District is located east of the central business district in Fort Worth, Texas.  Before the housing community was built, the area was known as Chambers Hill.  In the 1930s, Chambers Hill was notorious for squalid housing and prostitution.  In 1938, as a result of the dire circumstances in the area, the Fort Worth Chamber of Commerce lobbied the Public Works Administration to help clear the dilapidated housing in Chambers Hill and replace it with low-rent housing.  Financed by local and federal money, Butler Place opened in 1941.  When it opened, rents ranged from $15.50 to $16.75 per month.  The housing project was named after Henry H. Butler, an educator and Civil War veteran, who settled in Fort Worth after the war.  It was added to the National Register of Historic Places on August 4, 2011.

Fire Place (LIRR station): Fire Place was a station stop on the Main Line of the Long Island Rail Road.  Fire Place opened on June 26, 1844 with the opening of the LIRR to the temporary terminal near Carman's River.  The station was removed from the timetable for June 14, 1845, coinciding with the opening of St. George's Manor station, Riverhead station, Mattituck and Southold.

Shinnecock Canal: The Shinnecock Canal (also known as the Shinnecock and Peconic Canal) is a canal that cuts across the South Fork of Long Island at Hampton Bays, New York.  At 4700 ft long, it connects Great Peconic Bay and the north fork of Long Island with Shinnecock Bay and the Atlantic Ocean.  The canal opened to traffic in 1892.

Wey and Arun Canal: The Wey and Arun Canal is a partially restored, 23-mile-long (37 km) canal in the south east of England.  It runs southwards from the River Wey at Shalford, Surrey to the River Arun at Pallingham, in West Sussex.  The canal comprises parts of two separate undertakings – the northern part of the "Arun Navigation", opened in 1787 between Pallingham and Newbridge Wharf, and the "Wey and Arun Junction Canal", opened in 1816, which connected the Arun at Newbridge to the Godalming Navigation near Shalford, south of Guildford.  The canal was built with 26 locks.

Supporting paragraphs: Canoe Place (LIRR station) Shinnecock Canal
Answer: 4700 ft