Question: Are both the Houston Ship Channel and Carondelet Canal still in operation?

Context paragraphs:
Houston Buffaloes: The Houston Buffaloes, Houston Buffalos, or Buffs were an American minor league baseball team, and were the first minor league team to be affiliated with a Major League franchise, which was the St. Louis Cardinals.  The club was founded in 1888, and played in the Texas League at various levels throughout the majority of its existence.  Most recently, from 1959 through 1961, the team played in the American Association at the Triple-A level of high minor league baseball as an affiliate of the Chicago Cubs.  The Buffaloes derived their nickname from Buffalo Bayou, the principal waterway through Houston to the Houston Ship Channel, outlet to the Gulf of Mexico.  The team's last home was Buffalo Stadium, built in 1928.  Before that, they played at West End Park from 1905–1928, and at Herald Park prior to that.

Magnolia Park, Houston: Magnolia Park is an area of the East End, Houston, Texas, located near the Houston Ship Channel.  One of the oldest Hispanic neighborhoods in the City of Houston, Magnolia Park was formerly incorporated as the City of Magnolia Park in eastern Harris County.

Rob Todd: Rob Todd (born October 23, 1963) is an American entrepreneur and former member of the Houston City Council from 1996 to 2002.  Todd, a Republican, was a member of the Houston City Council from 1996 to 2002, representing the eastern edge of Houston.  His district included the Johnson Space Center, William P. Hobby Airport, the Houston Ship Channel, and Lake Houston.  He chaired the Regulatory Affairs Committee, the Charter Committee, and the Rail Committee.  He was also a member of the Aviation, Ethics, and Finance Committees.  At the time of his initial election, Todd was the youngest person ever elected to Houston City Council at the age of 31 and has been a mainstay in the business community.

Sidney Sherman Bridge: The Sidney Sherman Bridge is a strutted girder bridge in Houston, Texas.  It spans the Houston Ship Channel (Buffalo Bayou) and carries the East Loop segment of Interstate 610 on the east side of the city.  It is more popularly known as the "610 Bridge" or "The Ship Channel Bridge."

Denver Harbor, Houston: Denver Harbor is a historic community located in eastern Houston, Texas, United States near the Houston Ship Channel.  The community, bounded by Wallisville Road, the Houston Belt and Terminal Railroad, the Southern Pacific Railroad, the Port Authority Railroad, was first settled in the 1890s and platted in 1911 and 1913.  The community includes many historic bungalow and cottage homes.

Bayport Terminal: The Bayport Container Terminal, or simply the Bayport Terminal, is a major deep water port in the Greater Houston area in Texas (United States).  This relatively new terminal, part of the Port of Houston, is designed to handle standardized cargo containers and offload the nearby Barbours Cut Terminal, which has no further room for expansion.  The Bayport Terminal is situated along the Bayport Ship Channel off Galveston Bay, between La Porte, Texas and Seabrook, Texas (adjacent to Shoreacres and El Jardin).  This channel itself feeds into to the larger Houston Ship Channel, which runs from Houston, through Galveston Bay, to the Gulf of Mexico.

Carondelet Canal: The Carondelet Canal, also known as the Old Basin Canal, was a canal in New Orleans, Louisiana, U.S.A., operating from 1794 into the 1920s – or nearly 135 years.  It ceased to be navigable in 1927 and was filled in 1938.

Sheldon Lake: Sheldon Lake is a reservoir on Carpenters Bayou in the San Jacinto River basin, 16 miles (26 km) northeast of downtown Houston, Texas.  The reservoir was created in 1943 when the federal government built a dam to provide fresh water for shipbuilding and shipping industries on the Houston Ship Channel during World War II.  After the war, management of the reservoir was assumed by the City of Houston.  In 1952, after the construction of the dam that creates Lake Houston, the city sold the reservoir to the Texas Parks and Wildlife Department for use as a waterfowl sanctuary and public fishing site.  In 1984, land around the reservoir was designated the Sheldon State Wildlife Management Area.

Sam Houston Ship Channel Bridge: Sam Houston Tollway Ship Channel Bridge (formerly known as the Jesse H. Jones Memorial Bridge) is a bridge in Harris County, Texas.  It was acquired from the then–Texas Turnpike Authority (TTA) (now North Texas Tollway Authority) on May 5, 1994, and is now a part of the Harris County Toll Road Authority system.  The bridge opened to traffic in May 1982.  It carries four lanes of Beltway 8 over the Houston Ship Channel with a clearance of 175 ft .

Houston Ship Channel: The Houston Ship Channel, in Houston, Texas, is part of the Port of Houston, one of the US's busiest seaports.  The channel is the conduit for ocean-going vessels between Houston-area terminals and the Gulf of Mexico, and it serves an increasing volume of inland barge traffic.

Supporting paragraphs: Houston Ship Channel Carondelet Canal
Answer: no