Contents 1 Description 2 History 3 See also 4 References 5 External links

Description[edit] The highway is a stack interchange that connects U.S. Route 101 to State Route 110. All movements are possible in this interchange between US 101, which crosses over SR 110, but not necessarily with surrounding roads, like Sunset Boulevard, which crosses SR 110 just northeast of the interchange. The interchange is located at Exit 3 of US 101 and Exit 24A of SR 110. The four freeway segments ("paths" of travel) from the Four Level Interchange are: US 101 north (Hollywood Freeway) – Ventura US 101 south (Santa Ana Freeway) to I-5 south / I-10 east / SR 60 east SR 110 north (Arroyo Seco Parkway) – Pasadena SR 110 south (Harbor Freeway) to I-110 south – San Pedro

History[edit] While the highway oriented east–west at this intersection has consistently been numbered US 101, the numerical designation of road oriented north–south at this interchange has changed over the years. Originally designated U.S. Route 66 and U.S. Route 6 and later signed as State Route 11, all of these designations were eventually removed from the intersection and replaced with the current designation of Route 110. In July 2006, the freeway interchange was officially named in honor of Bill Keene, former KNX and KNXT traffic and weather reporter, although the new name is rarely used. Keene referred to the interchange as "The Stacks" and the "4-H Interchange". During the 1960s, Dick Whittinghill on radio station KMPC sometimes called it the Four Letter Interchange.[2] The interchange was constructed as a stack interchange because surrounding buildings and terrain made construction of a cloverleaf interchange impractical. The construction of the interchange displaced over 4000 people from their homes and cost $5.5 million (~$56 million in 2017 dollars) - making it the most expensive half-mile of highway ever built at the time.[3] The mainline traffic of US 101 is at the top of the interchange, above the ramps, a rarity in stack interchanges (although a similar configuration would later be used on the M25 to the south of London, with the M23 passing above the ramps). Its distinctive architecture has long made it a symbol of Los Angeles' post–World War II development, and it appears on numerous postcards from the 1950s and 1960s.[4]

See also[edit] California Roads portal

References[edit] ^ Four Level interchange-Los Angeles-Orange County Frwys ^ Floodgap-Arroyo Seco Parkway ^ "The famous "four-level" opens in Los Angeles". History. Retrieved February 21, 2015.  ^ "California: District 11: 1954 Four Level Interchange". 

External links[edit] Wikimedia Commons has media related to Bill Keene Memorial Interchange. L.A.'s Famous Four-Level Freeway Interchange, 'The Stack,' Turns 58 ( Retrieved from "" Categories: Southern California freewaysRoad interchanges in CaliforniaBridges on U.S. Route 66U.S. Route 101Road bridges in CaliforniaConcrete bridges in the United StatesTransportation buildings and structures in Los AngelesHidden categories: Coordinates on Wikidata

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Four_Level_Interchange - Photos and All Basic Informations

Four_Level_Interchange More Links

Downtown Los Angeles, CaliforniaGeographic Coordinate SystemGeographic Coordinate SystemU.S. Route 101 In CaliforniaCalifornia State Route 110CaltransStack InterchangeDowntown Los AngelesLos AngelesCaliforniaUnited StatesU.S. Route 101 (California)Hollywood FreewaySanta Ana FreewayState Route 110 (California)Harbor FreewayArroyo Seco ParkwayBill KeeneStack InterchangeU.S. Route 101 In CaliforniaCalifornia State Route 110Sunset BoulevardU.S. Route 101 In CaliforniaHollywood FreewayVentura, CaliforniaU.S. Route 101 In CaliforniaSanta Ana FreewayInterstate 5 In CaliforniaInterstate 10 In CaliforniaCalifornia State Route 60California State Route 110Arroyo Seco ParkwayPasadena, CaliforniaCalifornia State Route 110Harbor FreewayInterstate 110 (California)San Pedro, CaliforniaU.S. Route 66 (California)U.S. Route 6 (California)Bill KeeneKNX (AM)KCBS-TVDick WhittinghillRadio StationKMPCCloverleaf InterchangeM25 MotorwayLondonM23 MotorwayWorld War IIPostcardPortal:California RoadsHelp:CategoryCategory:Southern California FreewaysCategory:Road Interchanges In CaliforniaCategory:Bridges On U.S. Route 66Category:U.S. Route 101Category:Road Bridges In CaliforniaCategory:Concrete Bridges In The United StatesCategory:Transportation Buildings And Structures In Los AngelesCategory:Coordinates On WikidataDiscussion About Edits From This IP Address [n]A List Of Edits Made From This IP Address [y]View The Content Page [c]Discussion About The Content Page [t]Edit This Page [e]Visit The Main Page [z]Guides To Browsing WikipediaFeatured Content – The Best Of WikipediaFind Background Information On Current EventsLoad A Random Article [x]Guidance On How To Use And Edit WikipediaFind Out About WikipediaAbout The Project, What You Can Do, Where To Find ThingsA List Of Recent Changes In The Wiki [r]List Of All English Wikipedia Pages Containing Links To This Page [j]Recent Changes In Pages Linked From This Page [k]Upload Files [u]A List Of All Special Pages [q]Wikipedia:AboutWikipedia:General Disclaimer

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