201 ► District of Columbia, Washington, Southeast Washington, Navy Yard — 1970 / 2000 —

1970. Airlines carry 172 million passengers in the United States. 2000. Airlines carry almost 615 million passengers in the United States. — — Map (db m113622) HM

202 ► District of Columbia, Washington, Southeast Washington, Navy Yard — 1971 —

The final game in Washington ends in a forfeit win for the Yankees when fans storm the field. For over three decades the Nation's Capital is without a major league team. — — Map (db m114047) HM

203 ► District of Columbia, Washington, Southeast Washington, Navy Yard — 1972-1978 — Ivan Getting, Bradford Parkinson —

Getting and Parkinson devise the Global Positioning System. It uses satellite signals, control stations and GPS receivers to pinpoint location in consumer cars and boats as well as commercial and military craft. — — Map (db m113619) HM

204 ► District of Columbia, Washington, Southeast Washington, Navy Yard — 1977 — Paul MacCready —

His 70 pound Gossamer Condor, powered by cyclist Bryan Allen maneuvers a figure eight on a closed course and stays aloft for 7 minutes, 2.7 seconds, winning the $95,000 Kremer Prize. — — Map (db m113620) HM

205 ► District of Columbia, Washington, Southeast Washington, Navy Yard — 1983 — Sally Ride —

Dr. Ride, the first American woman in space, takes part in the 7th Space Shuttle mission. The reusable spacecraft carry out 113 missions between 1983 and 2003. — — Map (db m113618) HM

206 ► District of Columbia, Washington, Southeast Washington, Navy Yard — 3 — 200 I — Then & Now — Capitol Riverfront — Reported permanently removed

Once a paper warehouse and printing facility for The Washington Post, 200 I Street also served as a "tech hotel" before it was ultimately repurposed as a Class A office space that houses four DC Government agencies. The renovation and . . . — — Map (db m141559) HM

207 ► District of Columbia, Washington, Southeast Washington, Navy Yard — 2003 — Transportation Walk — Reported damaged

Dean Kamen introduces the battery operated self-balancing Segway Human Transporter. It carries people and small cargo 12 mph over a variety of terrains. — — Map (db m221971) HM

208 ► District of Columbia, Washington, Southeast Washington, Navy Yard — 2004 — Burt Rutan / Michael W. Melvill / Brian Binnie —

The SpaceShipOne rocket and glider reaches a record altitude of 368,000 feet. Its second flight in two weeks wins it the $10 million Ansari X-Prize offered to inspire private development of manned space flight. — — Map (db m113617) HM

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209 ► District of Columbia, Washington, Southeast Washington, Navy Yard — 2005 —

Baseball returns to Washington, D.C. after a 33-year absence as the new Washington Nationals franchise hosts the Arizona Diamondbacks in their home opener on April 14th. — — Map (db m114046) HM

210 ► District of Columbia, Washington, Southeast Washington, Navy Yard — 2005 — Transportation Walk — Reported damaged

Alternative fuel vehicle device options for clean fuel and energy independence. This includes solar cars, electric cars and busses, and gas and electric hybrids. — — Map (db m180185) HM

211 ► District of Columbia, Washington, Southeast Washington, Navy Yard — 5 — 909 Capitol Yards — Then & Now — Capitol Riverfront — Reported permanently removed

909 Capitol Yards is one of three residential apartment buildings constructed in Capitol Riverfront by developer JPI. The 237-unit building opened in 2011 on New Jersey Avenue, an area of the neighborhood populated by low commercial building, auto . . . — — Map (db m141565) HM

212 ► District of Columbia, Washington, Southeast Washington, Navy Yard — 12 — 99M — Then & Now — Capitol Riverfront — Reported permanently removed

The parcel of land on which 99M—a 220,000 square-feet LEED Platinum Class A Office building—is set was once the site of Normandie Liquors. According to JDLand.com, Normandie Liquors "seemed to become a symbol of old versus new" in the neighborhood, . . . — — Map (db m141572) HM

213 ► District of Columbia, Washington, Southeast Washington, Navy Yard — A Walk on the Canal —

You are standing on the site of the Washington City Canal. From 1815 to about 1880, the three blocks of Canal Park were part of an innovative, man-made waterways linking the Potomac River to the Eastern Branch of the Anacostia River. In . . . — — Map (db m113630) HM

214 ► District of Columbia, Washington, Southeast Washington, Navy Yard — American League Pennant / All-Star Game / Baseball in the Civil War / First Printing — Baseball Americana —

American League Pennant. As the defending world champions, Washington players raise the pennant early in the season prior to defeating the Philadelphia Athletics, 9-4. National Photo Company. Griffith Stadium, Washington, D.C., May 1, 1925. . . . — — Map (db m192569) HM

215 ► District of Columbia, Washington, Southeast Washington, Navy Yard — An Anacostia River That's Clean Doesn't Have to be a Dream —

When litter's on the ground, and the rain falls down, it ends up in the Anacostia River. So when you take your last drag, or you just have a bag, please do your part and don't litter. Earth Conservation Corps • Youth development . . . — — Map (db m114117) HM

216 ► District of Columbia, Washington, Southeast Washington, Navy Yard — April 1, 1967 — Transportation Walk — Reported unreadable

"In a nation that spans a continent, transportation is a web of union."—Lyndon B. Johnson on the new Department of Transportation begins operations. It oversees how transportation affects safety, property, economic growth, trade, the . . . — — Map (db m112719) HM

217 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Arch Bridge — Transportation Walk —

One of the strongest bridge types, the arch bridge was used extensively by the Romans. The arch carries the weight of the roadway and vehicular traffic to supports at each end. — — Map (db m113615) HM

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218 ► District of Columbia, Washington, Southeast Washington, Navy Yard — 16 — Audi Field — Then & Now — Capitol Riverfront — Reported permanently removed

Opened in July 2018, Audi Field is the home for the D.C. United professional soccer team. Located in Buzzard Point of Capitol Riverfront, Audi Field was a public-private partnership between the District Government and the ownership of D.C. United to . . . — — Map (db m141578) HM

219 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Baseball Americana — Play Ball! —

America and baseball grew up together, a democratic sport for a democratic nation. Transcending class and gender, the game is embedded in our history and consciousness like no other. The Library of Congress — the largest library in the world . . . — — Map (db m179717) HM

220 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Boiler House —

Building 116 was part of the combined boiler and Power Plant that serves the Washington Navy Yard and Annex. The Building is significant as part of the industrial complex, and represents the physical expansion of the yard that followed the . . . — — Map (db m141569) HM

221 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Cable Stayed Bridge — Transportation Walk —

The cables connect structure supporting the roadway and traffic to the tower, stiffening or staying the bridge and enabling the tower to carry the required load. — — Map (db m113616) HM

222 ► District of Columbia, Washington, Southeast Washington, Navy Yard — 1 — Canal Park — Then & Now — Capitol Riverfront — Reported permanently removed

Built on the site of the historic Washington Canal, Canal Park is three blocks of vibrant urban space with seasonal ice skating, interactive water fountains, and larger-than-life sculptures. Historically, the park draws its name from the Washington . . . — — Map (db m141549) HM

223 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Cantilever Bridge — Transportation Walk —

Cantilever bridges carry heavy loads. The structure is built out symmetrically from each pier. The landward side is anchored and the other side may support an intermediate truss or be joined to the next cantilever. — — Map (db m112781) HM

224 ► District of Columbia, Washington, Southeast Washington, Navy Yard — 2 — Capitol Quarter — Then & Now — Capitol Riverfront — Reported permanently removed

Constructed by EYA in partnership with the DC Housing Authority, these 327 townhomes are part of the rebuild of the Arthur Capper Carrollsburg public housing complex. The earlier 707 housing units were demolished in 2005 and these homes are a blend . . . — — Map (db m141554) HM

225 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Clean Rivers Project — Water Is Life —

Recycling Rain Rain is good for rivers, right? Not always. When heavy rains overwhelm storm drains, rainwater mixes with sewage, and the heavily polluted result—called Combined Sewer Overflows (CSOs)—winds up in Rock Creek,, the . . . — — Map (db m114113)

226 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Covered Wagon Wheels — Transportation Walk —

From the 1840s to the 1860s, settlers and gold rushers walk overland trails 15 to 20 miles a day beside covered ox-drawn wagons carrying up to 2500 lbs. of household goods and supplies. — — Map (db m113612) HM

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227 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Crane Runway —

The ability to move large machinery was essential to assembly and manufacturing at the Naval Gun Factory, and crane systems were both inside buildings and across outdoor spaces of the yard to coordinate numerous manufacturing efforts. They . . . — — Map (db m113797) HM

228 ► District of Columbia, Washington, Southeast Washington, Navy Yard — 15 — Dock 79 — Then & Now — Capitol Riverfront — Reported permanently removed

Voted by DC residents as Best Apartment Building in Washington City Paper's 2018 "Best of DC" poll, Dock 79 sits on once-neglected riverfront land that was used by land owner Florida Rock Properties for concrete mixing and gravel storage. Florida . . . — — Map (db m141575) HM

229 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Dudley Knox Center for Naval History — Dudley Wright Knox, Commodore, USN — 1877-1960 —

Dudley W. Knox, an 1896 graduate of the Naval Academy, had numerous tours afloat during the first twenty-five years of his career, including service in the first of the Navy's destroyers. He later played an important role in developing tactics and . . . — — Map (db m52235) HM

230 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Expanding Gate Valve —

Pipeline and Hazardous Materials Safety Administration To advance the safe transportation of energy and other hazardous materials Expanding Gate Valve Utilized on a filter skid in a liquid petroleum gas system in Texas City, Texas . . . — — Map (db m112726) HM

231 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Flight Path —

Look up, and every few seconds you'll see a plane taking off or landing from Washington Reagan National Airport, as they have since the 1940s. Due to its shorter runway, the airport is limited to smaller jet planes like 737s and 757s. — — Map (db m146987) HM

232 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Foundry —

The Foundry was critical to the mission of the National Gun Factory and consisted of the Steel Foundry, Brass Foundry, Brass Casting Cleaning Shop, and Smelting Plant. Constructed in 1913, the Steel Foundry was the largest of the structures and . . . — — Map (db m113792) HM

233 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Four Bicycles and a Three-Wheeler —

Marked, designated bike lanes on streets in most major cities, in suburbs and towns, are a response to increased cycling for fun, fitness and convenient, fuel-saving commuting. — — Map (db m112722) HM

234 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Frank Oliver Howard — "Hondo" —

Frank Howard played for the Washington Senators from 1965 through 1971. One of the most physically intimidating hitters in baseball history Howard was named the National League Rookie of the Year in 1960. He led the American League in home . . . — — Map (db m114056) HM

235 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Frank W. Crilley Building — Frank W. Crilley, Ensign, U.S. Navy, 1883-1947 —

Frank W. Crilley was born in Trenton, New Jersey on September 13, 1883. Following enlistment in the Navy in March, 1900 he became a gunner's mate and received additional training as a diver. In 1915 he made dives to over 300 feet during salvage . . . — — Map (db m10679) HM

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236 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Functioning as a Union Stronghold — Defense — Behind These Walls —

At the start of the Civil War, the Commandant of the Navy Yard mobilized all of the available forces—about 350 Marines, sailors, and volunteers—and hastily established key locations to protect the nation's capital. Additional Union . . . — — Map (db m126453) HM

237 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Functioning as the Nation's First Proving Ground — Firepower — Behind These Walls —

During the Civil War, the Navy established its first "Experimental Battery" here, testing cannons by firing down the Anacostia River. Ballistic test pits also were created here to determine how best to defeat Confederate ironclads. The Navy's . . . — — Map (db m126459) HM

238 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Functioning as the Navy's First Research and Development Center — Innovation — Behind These Walls —

The Navy has a treasured aeronautical history. Important early activities included the first shipboard catapult test in 1912, the establishment of the world's largest wind tunnel by the Navy's Aerodynamics Laboratory, and the large wooden scale . . . — — Map (db m126458) HM

239 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Historic Pumping Station — Water Is Life —

More Than a Century of Service You're standing before water pumping history— DC Water's Main Pumping Station. This beautiful and distinctive building was built in 1905 in the Beaux Arts style, like Union Station and the Corcoran . . . — — Map (db m114112) HM

240 ► District of Columbia, Washington, Southeast Washington, Navy Yard — 8 — Homewood Suites Hotel — Then & Now — Capitol Riverfront — Reported permanently removed

Today, the Homewood Suites by Hilton at 50 M Street, SE features rooftop views and two of DC's most popular fast casual restaurants — CAVA and Shake Shack. The land on which the hotel sits included a Sunoco gas station until 2006 when the station . . . — — Map (db m141561) HM

241 ► District of Columbia, Washington, Southeast Washington, Navy Yard — 10 — Insignia on M — Then & Now — Capitol Riverfront — Reported permanently removed

Once a quiet block that served as an entrance to the Navy Yard-Ballpark Metro station, mixed-use residential building Insignia on M now sits on a bustling corner of the Capitol Riverfront neighborhood. St. Matthews Baptist Church, built in 1972, . . . — — Map (db m141567) HM

242 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Joshua (Josh) Gibson —

Josh Gibson is considered one of the greatest power hitters in the history of baseball. The powerful catcher led the Washington Homestead Grays to eight of nine Negro National titles from 1937 through 1945. Gibson utilized a powerful swing, . . . — — Map (db m114055) HM

243 ► District of Columbia, Washington, Southeast Washington, Navy Yard — 34 — Lafayette's Tour — Mapping the Farewell Tour™ — The Lafayette Trail —

On October 15, 1824, General Lafayette visited the Washington Navy Yard at the invitation of Navy Commodore Thomas Tingey. — — Map (db m184842) HM

244 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Landing Gear and Wheels —

Many people fly for the first time after the Airline Deregulation Act of 1978 results in lower fares and the growth of commuter airlines offering new routes through a hub-and-spoke system. — — Map (db m112725) HM

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245 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Latrobe Gate - Tingey House —

Latrobe Gate Designed by Benjamin Henry Latrobe in 1804, the gate and flanking guardhouses were constructed in the Greek Revival style. This style became very popular in the young nation, and the original section of the gate represents one of . . . — — Map (db m28348) HM

246 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Leutze Park - Marine Corps Historical Center —

Leutze Park This park is named for Rear Admiral Eugene H. Leutze, who was Commandant of the Yard from 1905 to 1910. The park is used as a parade ground and for formal affairs as the Ceremonial Quarterdeck of the Navy. Surrounding the park is . . . — — Map (db m55429) HM

247 ► District of Columbia, Washington, Southeast Washington, Navy Yard — No 8 — Leutze Park Gun Collection — Historic Precinct Walking Tour —

Captured naval guns representing battle trophies of conflicts from the Barbary War to Spanish American War parallel the Dahlgren Avenue axis of the Navy Yard in Leutze Park. These guns are smooth bore muzzle loaders of eighteenth and nineteenth . . . — — Map (db m10138) HM

248 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Lumber Shed - Form and Function —

The Lumber Storage Shed, constructed in 1918-1919 in the wake of World War I, is one of the last surviving service facilities at the Navy Yard. Originally composed of two open-air concrete structures set parallel to each other, the separate . . . — — Map (db m113791) HM

249 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Lumber Shed - Movement of Materials —

A segment of the Navy Yard's marine rail system bisected the Lumber Storage Shed buildings. These tracks facilitated the movement of the newly cut lumber from the ships at the waterfront, to the shed for drying, and finally to the adjacent Pattern . . . — — Map (db m113795) HM

250 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Marine Railway - Experimental Model Basin —

Marine Railway In 1822 Commodore John Rogers designed and built the first marine railway in the United States. The purpose of the railway was to haul ships out of the water for repair or preservation of their hull. Before this time, ships . . . — — Map (db m10799) HM

251 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Mildred Belle —

Mildred Belle is an authentic Chesapeake Bay "buy boat" operated by Living Classrooms Foundation. Buy boats are an important part of. the Bay economy. They serve as "middlemen" on the bay, purchasing fish, crabs, and oysters directly from the . . . — — Map (db m114111) HM

252 ► District of Columbia, Washington, Southeast Washington, Navy Yard — National Museum of the U.S. Navy — Washington Navy Yard — Formerly: the Naval Gun Factory's 'Breech Mechanism & Gun Shop' —

lower panel, above doorway National Museum of the United States Navy upper panel Breech Mechanism & Gun Shop Extended 297 Feet, 1899 Rear Admiral Charles O’Neil, Chief of Bureau of Ordnance Comdr. E. C. Pendleton, U.S.N., . . . — — Map (db m89340) HM

253 ► District of Columbia, Washington, Southeast Washington, Navy Yard — 14 — Nationals Park — Then & Now — Capitol Riverfront — Reported permanently removed

Nationals Park opened in April 2008 as the 42,000 seat home for the Washington Nationals Baseball Club and a catalyst for the Capitol Riverfront and the Anacostia Waterfront Initiative (AWI) framework Plan. Situated on 17 acres of land, Nationals . . . — — Map (db m182141) HM

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254 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Naval Historical Foundation —

Chartered in the District of Columbia in 1926, the primary objectives of the Naval Historical Foundation are to collect and preserve private documents, papers and artifacts of naval historical significance and to make them readily available for . . . — — Map (db m52251) HM

255 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Navy Department Library —

The Navy Department Library was established by President Adams on 31 March 1800. On that date he wrote to the first Secretary of the Navy, Benjamin Stoddart, requesting the gathering “… of all the best writing in Dutch, Spanish, French, . . . — — Map (db m51068) HM

256 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Navy Gun Car — Mounting 14" - 50 Caliber Naval Gun —

One of the United States Naval Railway Batteries Designed, constructed and shipped abroad by the Bureau of Ordnance, Navy Department Placed in operation in France and Manned by naval personnel Under the command of Rear Admiral C.P. Plunkett, U.S.N. . . . — — Map (db m10162) HM

257 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Navy Yard — 9.16.13 — [Washington Navy Yard Shooting Memorial] —

In remembrance of the lives lost and the lives forever changed by the events of September 16, 2013. For our neighbors at the Navy Yard, we stand beside you. — — Map (db m179722) HM

258 ► District of Columbia, Washington, Southeast Washington, Navy Yard — 6 — One Hill South — Then & Now — Capitol Riverfront — Reported permanently removed

For many years, the land on which One Hill South now exists was the site of an Exxon gas station, a Wendy's fast food restaurant, and a towing company. The gas station closed in 2006 following a fraud scandal, and the Wendy's location stayed open . . . — — Map (db m141552) HM

259 ► District of Columbia, Washington, Southeast Washington, Navy Yard — One of DC's Oldest Neighborhoods —

In 1815 the Washington City Canal, linking the Anacostia River to the Potomac via downtown Washington, was completed. The canal attracted businesses where it met the Anacostia River. Among the first was the eight-story sugar refinery of merchant . . . — — Map (db m113629) HM

260 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Optical Tower - Second Officers House —

Optical Tower Rising behind the First Officer's Quarters is the Optical Tower built in 1918-19 to calibrate optical equipment, particularly range finding instruments, made in the Yard. From the tower, sightings were taken on the United States . . . — — Map (db m10140) HM

261 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Play — Water Is Life —

Park It Here The great outdoors is getting even better thanks to the Anacostia Waterfront Initiative. Existing parks have been cleaned up and improved, and new parks have been added to give residents and visitors a buffet of recreational . . . — — Map (db m114114)

262 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Presidential Fans / Fans! / Congressional Baseball Game — Baseball Americana —

Presidential Fans a. Woodrow Wilson throws out the first pitch on Opening Day, 1916. National Photo Company. b. Calvin Coolidge and Senators ace Walter Johnson, 1924. National Photo Company. c. President Herbert . . . — — Map (db m179719) HM

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263 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Protecting the River's Watershed — Anacostia River — Behind These Walls —

The Anacostia River has flooded the Navy Yard many times, with the worst flooding in 1936, 1937, 1942, and 1996. The flooding curtailed operations, inundating buildings closest to the river, and covered ground floors with 12 to 18 inches of water. . . . — — Map (db m130978) HM

264 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Protecting Undersea Rescue and Salvage Techniques — Diving — Behind These Walls —

In 1927, the U.S. Navy established an experimental dive school at the Navy Yard. The school centralized training, allowing the consolidation of dive-related and submarine-escape research efforts—including the development of the Momsen Lung . . . — — Map (db m130977) HM

265 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Providing Neighborhood Enrichment — Community — Behind These Walls —

For much of its history, the Washington Navy Yard was the life of the party, holding local community and neighborhood events such as WWI and WWII Navy Day diving demonstrations. Divers wearing cumbersome 190-pound deep-sea diving suits recovered . . . — — Map (db m126461) HM

266 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Racing Presidents Visit the Library of Congress —

a. The Washington Nationals racing presidents pay a visit to the Library of Congress. Library of Congress staff photographer. Racing presidents, 2013. b. Bill and Teddy did some research in the Library's Main Reading Room — and . . . — — Map (db m179721) HM

267 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Radio Towers —

Since its earliest development, radio communication has been critical to the operations of the United States Navy. Powerful radio towers on shore transmitted coded messages to Navy ships, where trained radio operators and de-coders managed the . . . — — Map (db m113793) HM

268 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Railroad Freight Car Truck and Tracks —

In 1831, American inventor John Stevens is the first to use wooden ties and develops the easily fastened T-shaped rail still used today. — — Map (db m112746) HM

269 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Receiving Honored Servicemembers and Dignitaries — Honor — Behind These Walls —

Famous and fallen leaders have arrived at the Navy Yard including the body of James Smithson, benefactor of the Smithsonian Institution in 1904. In 1921, the Unknown Soldier from WWI was brought here before burial at Arlington National Cemetery. A . . . — — Map (db m126457) HM

270 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Restore and Connect — Water Is Life —

Uniting a City by Revitalizing a River For thousands of years, rivers have been the engines that fueled the world's greatest cities. But for decades, Washington's Anacostia River had been a symbol of pollution and division. Then in 2000, an . . . — — Map (db m114116) HM

271 ► District of Columbia, Washington, Southeast Washington, Navy Yard — River Revival —

Wetlands like those pictured here once functioned as a natural filtering system for the Anacostia River, but development in the region led to the destruction and infill of almost all of the river's wetlands. These restored wetlands near Greenbelt, . . . — — Map (db m184833) HM

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272 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Saint Paul African Union Methodist Protestant (AUMP) Church — 401 I Street SE — African American Heritage Trail, Washington DC —

The St. Paul African Union Methodist Protestant (AUMP) Church is the first and only church in Washington, DC that evolved from what is considered the oldest incorporated, independent African American denomination in the country. The . . . — — Map (db m113632) HM

273 ► District of Columbia, Washington, Southeast Washington, Navy Yard — No 5 — Second Officer's House —

The Second Officer's House or Quarters B is believed to contain elements of an existing eighteenth century farmhouse. Erected as a simple two and one-half story Federal style brick house late in 1801, the Second Officer's House may have incorporated . . . — — Map (db m10136) HM

274 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Senators Sign One-Legged Pitcher / Baseball and Our Troops — Baseball Americana —

Senators Sign One-Legged Pitcher Left-handed pitcher Bert Shepard lost his right leg after his plane was shot down over Germany during World War II. On August 4, 1945, he appeared in his only major league game, finishing his career with . . . — — Map (db m179718) HM

275 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Serving as a Temporary Federal Prison — Safety — Behind These Walls —

The body of John Wilkes Booth, assassin of President Abraham Lincoln, was brought to the Navy Yard for examination and identification aboard the USS Montauk. With the exception of Mary Surratt, the Lincoln conspirators (including Lewis Payne, . . . — — Map (db m126460) HM

276 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Serving as an Arsenal and Gun Factory — Industry — Behind These Walls —

The first large gun foundry was erected during the Civil War at the Navy Yard. In 1886, the Navy Yard was designated the manufacturing center for all Navy ordnance. By World War II, the Yard was the largest naval ordnance in the world. In December . . . — — Map (db m126454) HM WM

277 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Serving as the City's Diplomatic Gateway — Diplomacy — Behind These Walls —

Before air travel, the Navy Yard was the ceremonial gateway to the nation's capital. In 1860, the first Japanese diplomatic mission was welcomed to the United States in an impressive pageant here. Great Britain's George VI and Queen Elizabeth (shown . . . — — Map (db m126456) HM

278 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Ship's Propeller / Airplane Propeller / Truck Wheel — Transportation Walk —

Ship's Propeller The helical blades of the ship's propeller force water backward. The reaction drives the ship forward. Additional drive is provided by the suction created on the forward face of the screw blades. Airplane . . . — — Map (db m112922) HM

279 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Ships' Wheels — Transportation Walk —

Starting in the 18th century, helm wheels begin to replace tillers for turning ships' rudders, making steering easier. — — Map (db m113747) HM

280 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Single Bit Bollard —

Completed under the direction of George W. Goethals, the 51-mile Panama Canal opens to shipping in 1914 and shortens the voyage from New York to San Francisco by 7,873 miles. — — Map (db m112762) HM

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281 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Site of U. S. Experimental Model Basin 1898 - 1955 — Founded by Rear Admiral David Watson Taylor Who Was the Director Until 1914 —

Here the Navy laid the foundations for research in ship and aircraft design with the establishment of a 470 foot towing tank in 1898 and an 8-by 8-foot closed circuit wind tunnel in 1914, both of which were first in the United States. Structural . . . — — Map (db m10456) HM

282 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Sliding at Griffith Stadium —

a. Washington catcher Muddy Ruel lays on a tag to prevent Bing Miller of the Philadelphia Athletics from scoring. b. Bucky Harris is safe at third as Boston's Joe Dugan watches a wild throw sail into left field. c. . . . — — Map (db m179715) HM

283 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Suspension Bridge — Transportation Walk —

Suspension bridges span the widest openings. Cables stretched over high towers conduct the weight of roadway and traffic to the anchorages at each end. — — Map (db m112737) HM

284 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Swift Boat PCF-1 —

Dedicated on 23 April 1998 by Senator John F. Kerry and Wade Sanders of the Swift Boat Sailors Association, Inc. in recognition of those who served and in memory of lost comrades — — Map (db m10453) HM WM

285 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Swift Boats (PCFs) and the Vietnam War — Ninety-Two Swifts Deployed to Vietnam, From 1965 until their 1973 Transfer to the South Vietnam Navy —

Swift Boat Operations The U.S. Navy employed Patrol Craft Fast (PCF) or Swift Boats in its coastal river operations of the Vietnam War. From 1965 to 1972, Swift Boats based all along the coast of the Republic of Vietnam searched for North . . . — — Map (db m184839) HM

286 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Swift Boats, Home and Friend to Their Six Man Crew — Manned by an Officer-In-Charge (Ensign to Lieutenant), and five crew — Quartermaster, Gunner's Mate, Engineman, Radarman, and Seaman —

Bravery Under Fire An operation that occurred on 28 January 1969 attested to the courage and quick-thinking of the young Swift Boat Sailors. Lieutenant (junior grade) John Rodgers Roland Jr., the officer in tactical command of PCF-35 . . . — — Map (db m184835) HM WM

287 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Switching Yard —

Almost 100 years ago, the tracks of the busy Pennsylvania Railroad freight yard known as the "Navy Yard" occupied the area around 4th and M Streets, serving the US Navy Shipyard Annex. Two or three yard engines switched freight cars that brought in . . . — — Map (db m113613) HM

288 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Taxiway Guidance Sign / Crossing Gate and Flashing Light Signal / Channel Marking Buoy —

Taxiway Guidance Sign The colors, letters and design of standardized airport signs on taxiways and runways provide specific instructions to pilots. Crossing Gate and Flashing Light Signal Uniform traffic signs, sounds, signals and . . . — — Map (db m112925) HM

289 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Teaching Sailors for the Fleet — Training — Behind These Walls —

As the nation's first naval gunnery center, the Navy created its first gunnery school here in the 1850's. These "Top Gun" sailors learned how to operated and repair the Navy's largest ordnance, including 4-inch to 13-inch guns. In 1911, the Navy . . . — — Map (db m126455) HM

290 ► District of Columbia, Washington, Southeast Washington, Navy Yard — 18 — The Bixby — Then & Now — Capitol Riverfront — Reported permanently removed

Formerly the site of the Arthur Capper Senior Citizens Facility, the Bixby was completed in 2016 as part of the Arthur Capper Carrollsburg HOPE VI redevelopment and includes a mix of affordable and market rate apartments. The senior center . . . — — Map (db m141581) HM

291 ► District of Columbia, Washington, Southeast Washington, Navy Yard — The Center for Naval History - The Navy Museum —

The Center for Naval History The Dudley Knox Center for Naval History is housed in the complex of buildings adjacent to the Leutze Park and extending down Dahlgren Avenue. Building 57, which was erected in 1866 as a warehouse, was enlarged in . . . — — Map (db m52503) HM

292 ► District of Columbia, Washington, Southeast Washington, Navy Yard — 4 — The Collective — Then & Now — Capitol Riverfront — Reported permanently removed

The Collective is a group of three highly-amenitized apartment buildings including the completed Park Chelsea and Agora, and The Garrett which is set to deliver in 2020. Long before developer WC Smith broke ground on these luxury apartments, the . . . — — Map (db m141562) HM

293 ► District of Columbia, Washington, Southeast Washington, Navy Yard — The Leg of Colonel Ulric Dahlgren —

The plaque below marks the spot where the leg of U.S. Army Colonel Ulric Dahlgren, son of Admiral John Dahlgren, "father of American naval ordnance," was interred following his wounding after the battle of Gettysburg in 1863. The leg was enclosed . . . — — Map (db m32629) HM

294 ► District of Columbia, Washington, Southeast Washington, Navy Yard — 20 — The Lumber Shed — Then & Now — Capitol Riverfront — Reported permanently removed

An original historic structure from the Washington Navy Yard campus, the Lumber Shed building was a concrete, open air structure that was used for the storage and drying of wood to make molds for ship construction. The building was renovated and . . . — — Map (db m141583) HM

295 ► District of Columbia, Washington, Southeast Washington, Navy Yard — The Lumber Shed Building —

Concrete Structures Constructed: 1918-1919 Wooden Roof & Trusses Constructed: 1953 Renovation of Historic Building Completed: 2013 — — Map (db m114110) HM

296 ► District of Columbia, Washington, Southeast Washington, Navy Yard — The Paving Stone Archaeological Site / The L'Enfant Plan — Virginia Avenue, SE —

Diagonal Virginia Avenue, SE and rectangular Virginia Avenue Park are two of the many features that characterize the L'Enfant Plan. Eventually, cut granite block paving stones were installed on Virginia Avenue, SE and most likely due to the . . . — — Map (db m136584) HM

297 ► District of Columbia, Washington, Southeast Washington, Navy Yard — The Return of Indigenous Plants and Wildlife —

This mural celebrates the return of the indigenous plants and wildlife to their native habitats in the Anacostia watershed. Designed and created by a group of students in the Corcoran Gallery of Art's ArtReach program. It was installed in the . . . — — Map (db m114118) HM

298 ► District of Columbia, Washington, Southeast Washington, Navy Yard — The River in Focus — Capitol Riverfront — DC Amplified. Life Simplified. —

The story of the Anacostia River pulses with the same sad cycles of abuse and neglect that define the stories of rivers across America. Our alteration of the Anacostia has affected everyone in the watershed and beyond, from the Anacostia . . . — — Map (db m184829) HM

299 ► District of Columbia, Washington, Southeast Washington, Navy Yard — The Washington Navy Yard —

Authorized by the first Secretary of the Navy, Benjamin Stoddard, is the U.S. Navy's oldest shore establishment. It occupies land set aside by George Washington for use by the federal government. The Navy Yard expanded rapidly as a shipbuilding . . . — — Map (db m90434) HM

300 ► District of Columbia, Washington, Southeast Washington, Navy Yard — Three Gas Pumps — Transportation Walk —

Increased automobile use and interstate trucking companies spur the growth of the largest of roads in the world. Rural areas are linked to major economic centers. — — Map (db m112718) HM

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