Question: Are the Washington City Canal and Champlain Canal both still fully operational ?

Context articles: Glens Falls Feeder Canal
New York State Canal System
Cerro Armazones Observatory
Washington City Canal
New York State Canal Corporation
New York State Department of Public Works
MIDnet
Isle of Man Railway stations
Champlain Canal
Lake Champlain Bridge (2011)

The Glens Falls Feeder Canal is a canal from Glens Falls, New York, United States through Hudson Falls and into Fort Edward.
 It is 7 mi long and delivers water from above Glen's Falls on the Hudson River to the highest point of the Champlain Canal.
 The Feeder Canal Heritage Trail runs along a large part of the canal.
The New York State Canal System (formerly known as the New York State Barge Canal) is a successor to the Erie Canal and other canals within New York.
 Currently, the 525 mi system is composed of the Erie Canal, the Oswego Canal, the Cayuga–Seneca Canal, and the Champlain Canal.
 In 2014 the system was listed as a national historic district on the National Register of Historic Places in its entirety, and in 2016 it was designated a National Historic Landmark.
Cerro Armazones Observatory (Spanish: "Observatorio Cerro Armazones," OCA; German: "Observatorium Cerro Armazones," OCA) is an astronomical observatory owned and operated jointly by the Ruhr University Bochum (RUB) and the Catholic University of the North (UCN).
 It was established in 1995 on the slopes of Cerro Armazones, a mountain in the Antofagasta Region of Chile.
 The observatory is located in the Atacama Desert about 110 km south of the city of Antofagasta.
 Unlike many other observatories, OCA is not located at the highest point of its host mountain.
 Instead, it was in a saddle approximately 340 m below the summit and 1 km to the southwest.
 This location has been given up due to the vicinity of the ELT construction site in January 2014.
 The Telescopes of the Bochum university, installed after 2006, are still fully operational, and are located 500 m further to the west and 100 m higher than the original OCA observatory, on a subsidiary peak of Cerro Armazones, Cerro Murphy.
 The coordinates here are those of this summit now.
The Washington City Canal operated from 1815 until the mid-1850s in Washington, D.C. The canal connected the Anacostia River, called the "Eastern Branch" at that time, to Tiber Creek, the Potomac River, and later the Chesapeake and Ohio Canal (C&O).
 The canal fell into disuse in the late 19th century and the city government covered over or filled in various sections.
The New York State Canal Corporation is responsible for the oversight, administration and maintenance of the New York State Canal System, which consists of the Erie Canal, Cayuga–Seneca Canal, Oswego Canal and Champlain Canal.
 It is also involved with the development and maintenance of the New York State Canalway Trail and with the general development and promotion of the Erie Canal Corridor as both a tourist attraction and a working waterway.
The office of Superintendent of Public Works was created by an 1876 amendment to the New York State Constitution.
 It abolished the canal commissioners and established that the Department of Public Works execute all laws relating to canal maintenance and navigation except for those functions performed by the New York State Engineer and Surveyor who continued to prepare maps, plans and estimates for canal construction and improvement.
 The Canal Board (now consisting of the Superintendent of Public Works, the State Engineer and Surveyor, and the Commissioners of the Canal Fund) continued to handle hiring of employees and other personnel matters.
 The Barge Canal Law of 1903 (Chapter 147) directed the Canal Board to oversee the enlargement of and improvements to the Erie Canal, the Champlain Canal and the Oswego Canal.
 In 1967, the Department of Public Works was merged with other departments into the new New York State Department of Transportation.
Grants were submitted to the National Science Foundation in the Spring of 1986, and in the Summer of 1986 NSF approved funding.
 In September, 1987 MIDnet was the first NSFNET regional backbone network to become fully operational.
 The NSFNET regional backbone networks were the precursors to the Internet.
 MIDnet initially connected Iowa State University, Kansas State University, Oklahoma State University–Stillwater, the University of Kansas, the University of Missouri, the University of Nebraska-Lincoln, the University of Oklahoma, and Washington University in St. Louis with 56 kbit/s DDS leased telephone lines in a ring topology.
 The MIDnet ring was originally connected via a 56 kbit/s DDS leased telephone line from the Nebraska node to the NSFNET backbone.
 It was the first of the NSF-funded regional networks to become fully operational.
This article details each of the lines operated by the Isle of Man Railway, including the original line to Peel in the west, opened in 1873, followed by the Port Erin line the following year (which is still fully operational today), as well as the Manx Northern Railway's line between St John's and Ramsey and the Foxdale Railway's line between St John's and Foxdale (the latter two of which were independent companies bought out in 1905 by the Isle Of Man Railway Company.
The Champlain Canal is a 60 mi canal that connects the south end of Lake Champlain to the Hudson River in New York.
 It was simultaneously constructed with the Erie Canal and is now part of the New York State Canal System and the Lakes to Locks Passage.
The Lake Champlain Bridge is a vehicular bridge traversing Lake Champlain between Crown Point, New York and Chimney Point, Vermont.
 It replaced the Champlain Bridge.
 The bridge was designed and constructed during an aggressive two-year schedule to minimize the social and economic impact of the original bridge's demolition.
 It is the only fixed-link crossing of Lake Champlain/Champlain canal between US 4 in Whitehall, 42 miles to the south and US-2 at Rouses Point, 85 miles to the north.