Navy Yard–Ballpark station

Onyx on First is a high-rise building located in the United States capital of Washington, D.C. The 260 unit building was developed by the Canyon-Johnson Urban Fund. Demolition of the original buildings in the location began in September 2006 and construction began on October 31, 2006. It was completed in August 2008 and move-in began October 2009.The building rises 130 feet (40 m), with 14 stories and 4 below-grade parking levels. The building is an apartment complex with 266 units.

The National Transportation Library (NTL) maintains and facilitates access to information necessary for transportation decision-making in government and coordinates with public and private transportation libraries and information providers to improve information sharing among the transportation community. It is currently under the administration of the Bureau of Transportation Statistics (BTS).

The Credit Union National Association, commonly known as CUNA (pronounced "Cue-Nuh"), is a national trade association for both state- and federally chartered credit unions located in the United States. CUNA provides member credit unions with trade association services, such as lobbying, regulatory advocacy, professional development, and professional services management. The organization operates out of its headquarters in Washington, D.C., and an operations center in Madison, Wisconsin. CUNA's president and chief executive officer Jim Nussle has led the organization since September 2014.It was founded at a meeting in Estes Park, Colorado as a replacement for the Credit Union National Extension Bureau. The first director was Roy F. Bergengren.

The Pipeline and Hazardous Materials Safety Administration (PHMSA) is a United States Department of Transportation agency created in 2004, responsible for developing and enforcing regulations for the safe, reliable, and environmentally sound transportation of energy and other hazardous materials that are essential to the daily lives of the American people. It is in charge of overseeing the nation's approximately 3.4 million miles of pipelines - accounting for 65% of the energy consumed in the U.S. - and regulating the nearly 1 million daily shipments of hazardous materials by land, sea, and air. PHMSA's safety programs are housed in the Office of Pipeline Safety (OPS) and the Office of Hazardous Materials Safety (OHMS). PHMSA is headquartered in Washington, D.C. PHMSA was created within the U.S. Department of Transportation under the Norman Y. Mineta Research and Special Programs Improvement Act of 2004, which then-United States President George W. Bush signed into law on November 30, 2004. Its mission is to protect people and the environment by advancing the safe transportation of energy and other hazardous materials that are essential to the people's daily lives.

The United States Department of Transportation (USDOT or DOT) is one of the executive departments of the U.S. federal government. It is headed by the secretary of transportation, who reports directly to the president of the United States and is a member of the president's Cabinet. The department's fiscal year 2022-2026 strategic plan states that its mission is "to deliver the world's leading transportation system, serving the American people and economy through the safe, efficient, sustainable, and equitable movement of people and goods."

Navy Yard, also known as Near Southeast, is a neighborhood on the Anacostia River in Southeast Washington, D.C. Navy Yard is bounded by Interstate 695 to the north and east, South Capitol Street to the west, and the Anacostia River to the south. Approximately half of its area (south of M Street, SE) is occupied by the Washington Navy Yard (including the Naval Historical Center), which gives the neighborhood its name. The neighborhood is located in D.C.'s Ward 8, currently represented by Trayon White. It is served by the Navy Yard – Ballpark Metro station on the Green Line.

The D.C. Water Main Pumping Station (or simply Main Pumping Station) is located at 125 O Street, SE in the Southeast Quadrant of Washington, D.C. on the Anacostia River between the Washington Navy Yard and Nationals Park.

Building 170 is a former electrical substation located by the Anacostia River in the Navy Yard neighborhood of Washington, D.C. It is situated on the northwest corner of 3rd and Tingey Streets, Southeast, three blocks from the historic Washington Navy Yard. The industrial, two-story building was recently renovated and currently owned by the United States Department of Transportation. It is a contributing property to the Washington Navy Yard Annex Historic District, listed on the National Register of Historic Places in 2008.

The District of Columbia Water and Sewer Authority (DC Water) provides drinking water, sewage collection and sewage treatment for the District of Columbia, in the United States. The utility also provides wholesale wastewater treatment services to several adjoining municipalities in Maryland and Virginia, and maintains more than 9,000 public fire hydrants in the District of Columbia. DC Water was created in 1996 when the District Government and the U.S. federal government established it as an independent authority of the District government.

Velvet Nation was a gay dance event that took place at the Nation nightclub, formerly known as The Capitol Ballroom, located at 1015 Half Street, SE in Washington, D.C. The party name was derived from the venue name and "Velvet", an ode to the gay community. This event was hosted weekly on Saturday nights, 388 times over seven years, serving more than 741,000 patrons. The event ended when Nation closed on July 16, 2006. The club was forced to close because of eminent domain, and the land is now part of the redevelopment program being spurred by the new Nationals Park baseball stadium in the Navy Yard/Near Southeast neighborhood.Velvet Nation was created and operated by John Guggenmos and Ed Bailey. For many years, it hosted circuit event DJs and talents such as Junior Vasquez, Victor Calderone, The Pet Shop Boys, k.d. lang, and The Village People. It was also known for its theme events such as Madonnarama, a night of all Madonna music and video, and its foam parties. In Fall 2007, Bailey and Guggenmos opened the follow-up to Velvet Nation, Town Danceboutique, a two-story, 20,000-square-foot (1,900 m2) gay nightclub in Northwest D.C.

Josh Gibson is a public artwork by sculptor Omri Amrany, located at the Nationals Park in Washington, D.C., United States.

Arthur Capper/Carrollsburg was a housing project on Capitol Hill in Southeast Washington, D.C., bounded by Virginia Avenue, M Street, 2nd Street, and 5th Street, SE. Arthur Capper was known to the residents as "Capers." First built in 1958, the project consisted of the Arthur Capper Senior, Arthur Capper Family, and Carrollsburg Family developments, and housed 707 households. The project's architect was Hilyard Robinson. It was named for Kansas Senator Arthur Capper who, as chair of the District of Columbia Committee, helped create the first housing authority in D.C.