178th–179th Street Tunnels

Originally conceived and constructed under the auspices of Robert Moses, the twin tunnels have been superseded by the Trans-Manhattan Expressway in Washington Heights, which itself runs through a cut with high-rise apartments built over it in places.The eastern end split into two directions: a ramp to Amsterdam Avenue on the right and a 1,000-foot-long (300 m) driveway south to the Harlem River Drive on the left.[4] After delays related to the construction of the Harlem River Drive ramp,[5] the 178th Street Tunnel opened on June 27, 1940, serving both directions of traffic.[2] Due to labor shortages and low traffic during World War II, the tunnel was closed in May 1942, reopening in November 1945.A study was completed, in which the tunnels would be rehabilitated and reused temporarily for traffic diverted from a reconstruction of the Trans-Manhattan Expressway and the Alexander Hamilton Bridge.
Eastern portal of 178th St tunnel
One of the tunnels under the Bronx-George Washington Bridge in 1952
tunnelsUpper ManhattanNew York CityRobert MosesTrans-Manhattan ExpresswayWashington Heightshigh-riseinterstatePort Authority of New York and New JerseyGeorge Washington BridgeAmsterdam AvenueHarlem River Drive1939 New York World's FairWashington BridgeHarlem RiverWorld War IIAlexander Hamilton BridgeProQuestThe New York TimesManhattanFort Tryon ParkFort Washington ParkInspiration PointGorman ParkHighbridge ParkJ. 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Hts.Pleasant AvLenox Av (Malcolm X Blvd)Powell BlvdDouglass BlvdMorningside DrAudubon AvSt. Nicholas Av (Duarte Blvd)Claremont AvFt. Washington AvCabrini BlvdSylvan PlBridgeMarketfieldBeaverExchange PlAlbanyLibertyCortlandt St/WyMaiden LaFultonDowntownSpruceRooseveltChambersE BroadwayMadisonN MooreBroomeHesterDelanceyStantonHoustonVandamBleeckerGreat JonesWaverly PlWashington Square NAstor PlWashington MewsStuyvesantMacdougal AlleySt. Mark's PlGreenwich AvChristopherCharles45th (George Abbott Way)52nd (Swing Alley / St of Jazz)59th (Central Park S)Uptown66th / Peter Jennings Way110th (Cathedral Pkwy / Central Park N)125th (Martin Luther King Jr. Blvd)130th (Astor Row)139th (Strivers' Row)Bogardus PlDyckmanColumbusDuke EllingtonFrederick DouglassChathamCooperDuarteGramercy ParkGrand Army PlzHanoverHeraldJacksonLincolnPershingPetrosinoShermanTompkinsZuccotti ParkManhattan address algorithmHowland HookPort JerseyPort Newark–ElizabethRed HookBrooklyn Cruise TerminalCape LibertyAtlantic CityKennedyLaGuardiaNewark LibertyStewartTeterboroBayonne BridgeGoethals Bridge1928–2017 bridgeHolland TunnelLincoln TunnelOuterbridge CrossingAirTrain JFKAirTrain LaGuardiaAirTrain NewarkGateway ProjectNewark Airport StationGreenville YardExpressRailNYNJ RailGWB Bus StationJournal Square Transportation CenterPort Authority Bus TerminalDyer AvenueHolland Tunnel RotaryGeorge Washington Bridge PlazaJFK ExpresswayLincoln Tunnel ExpresswayLincoln Tunnel HelixBathgate Industrial ParkBattery Park City Ferry TerminalEssex County Resource Recovery FacilityMilitary Ocean Terminal at BayonneNewark Legal CenterPANYNJ Police DepartmentTeleportQueens WestWorld Trade Center (2001–present)111 Eighth AvenueDowntown Manhattan HeliportHudson TerminalPort Authority Pavilion (1964–1965)West 30th Street HeliportWorld Trade Center (1973–2001)