O'Hare 21 Terminal Program Slips to 2034

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• Transport09/20/2026@BuildDesk

  O'Hare's Satellite Concourse 1 Is Finished

  Satellite Concourse 1, O'Hare International Airport, Chicago, IllinoisChicago Department of Aviation

  

  Starts 10/01/2028DELAYED3 years late40% CONFIDENCEin 2.0 yearsSatellite Concourse 1 "began vertical construction in April 2026 with a targeted completion date of late 2028" - a season rather than a day, and one that has already moved.^[1]

  The first of two satellite concourses west of O'Hare's terminal core, designed by Skidmore, Owings & Merrill with Norviska and designated Concourse D, is reached by an underground tunnel from the terminals. Vertical construction started in April 2026; the $1.45 billion concourse is the first piece of the O'Hare 21 rebuild to be delivered, a programme approved in 2018 at $8.5 billion and now put at roughly $12 billion in current dollars.

  $1.4B

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• Transport09/20/2026@BuildDesk

  Phoenix Sky Harbor Starts Building Its Third Terminal

  Phoenix Sky Harbor International Airport, 3400 E Sky Harbor Blvd, Phoenix, AZ 85034City of Phoenix

  

  Starts 01/01/2029ESTIMATED50% CONFIDENCEin 2.3 yearsThe airport's own schedule lists "Construction 2029 - 2033" with no start date, so the pin uses the start of 2029.^[1]

  Sky Harbor's West Terminal, the airport's first new terminal since Terminal 4 opened in 1990, is scheduled to go into construction in 2029 and open in 2033, with the number of concourses and gates still to be decided. The airport puts the likely cost at around $4.5 billion, paid for with passenger facility charges, bonds and airport funding rather than tax dollars.

  0.67

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• Transport09/15/2026@BuildDesk

  Denver Airport's Great Hall Program Targets 2027 Completion

  Denver International Airport, 8500 Peña Boulevard, Denver, Colorado, United StatesDenver International Airport

  

  Starts 12/31/2027SCHEDULED74% CONFIDENCEin 1.3 yearsGiven as scheduled, per the source^[1]: "the airport says work will be completed on time and on budget in 2027."

  Denver International Airport's long-running Great Hall renovation, meant to modernise its original 1995 terminal and add new security checkpoints, is now scheduled to finish by the end of 2027.

  $1.3B

  0.64

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• Transport09/15/2026@BuildDesk

  JFK's New Terminal One Phase 1 Slips to Late 2026

  John F. Kennedy International Airport, Queens, New York, USAThe New Terminal One

  

  Starts 11/30/2026DELAYED5 months late65% CONFIDENCEin 68 daysGiven as scheduled, per the source^[1]: "This opening date has been pushed back to November 2026 at the earliest".

  The first phase of JFK's $9.5BN New Terminal One, originally due in June 2026, will not open before November 2026 at the earliest.

  $9.5B

  0.64

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• Transport09/14/2026@BuildDesk

  Chuo Shinkansen Maglev Delayed to 2035

  Shinagawa Station, Tokyo, JapanCentral Japan Railway

  

  Starts 12/31/2035DELAYED8 years late57% CONFIDENCEin 9.3 yearsJR Central said in 2024 that 2027 was impossible and that the line would not open before 2034; in 2025 that slipped again to no earlier than 2035, which is what Wikipedia's^[2] infobox now gives (citing Asahi Shimbun, 29 October 2025). Dated to the last day of 2035, the earliest year now stated.

  JR Central's Chuo Shinkansen maglev line, meant to cut Tokyo-Nagoya travel to around 40 minutes, has slipped from a planned 2027 opening to no earlier than 2035.

  $64B

  0.64

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• Transport09/20/2026@BuildDesk

  LAX's SkyLink People Mover Starts Systems Testing

  Los Angeles International Airport, 1 World Way, Los Angeles, CA 90045Los Angeles World Airports

  

  Starts 04/21/2026CONFIRMED90% CONFIDENCE155 days agoThe article states that "Systems demonstration testing began on April 21, 2026, intending to demonstrate 30 consecutive days of continuous error-free operation."^[1]

  The 2.25-mile automated people mover linking LAX's terminals to the Metro Rail system and the rental car centre began demonstration running without passengers, aiming for 30 consecutive days of error-free operation before it can carry anyone. Construction was originally due to finish in March 2023; Los Angeles World Airports has since agreed to more than $880 million in dispute payments on top of the $4.9 billion, 25-year contract, and has not announced an opening date.

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• Transport09/15/2026@BuildDesk

  Vancouver's Broadway Subway Delayed to Fall 2027

  Arbutus Station, Kitsilano, Vancouver, British Columbia, Canada

  

  Starts 10/31/2027DELAYED2 years late68% CONFIDENCEin 1.1 yearsGiven as scheduled, per the source^[1]: "testing continuing in stages throughout 2027 ahead of the planned opening in autumn 2027."

  A five-kilometre SkyTrain extension meant to unlock a taller, denser Broadway Corridor in Vancouver has slipped from its original early-2026 target to autumn 2027.

  $2.1B

  0.63

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• Transport09/20/2026@BuildDesk

  SFO's Terminal 3 West Expansion Opens

  Terminal 3, San Francisco International Airport, San Francisco, CA 94128San Francisco International Airport

  

  Starts 09/01/2027ESTIMATED50% CONFIDENCEin 343 daysThe builder's announcement says the expansion "is scheduled to open in the fall of 2027", a season rather than a day.^[1]

  Turner broke ground on 5 September 2024 on the $2.6 billion modernization of SFO's Terminal 3: a 200,000-square-foot expansion, 650,000 square feet of renovation and a new six-story building holding airline lounges and operational offices. The eastern addition follows in 2029.

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• Transport09/20/2026@BuildDesk

  DFW Airport Opens the First 15 Gates of Terminal F

  Terminal F, Dallas Fort Worth International Airport, TX 75261, United StatesDallas Fort Worth International Airport

  

  Starts 12/31/2027ESTIMATED50% CONFIDENCEin 1.3 yearsDFW's own newsroom says "the first phase of the Terminal F expansion program is anticipated to open with 15 gates in 2027", giving a year rather than a day, so it sits at the end of that year.^[1]

  Phase one of DFW's sixth terminal opens with 15 gates, two and a half years after construction began in November 2024 and on a frame built from six prefabricated modules rolled into place by August 2025. DFW and American Airlines have since scaled the programme up to an eventual 31 gates at about $4 billion, with the rest of the terminal following by 2031.

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• Transport09/20/2026@BuildDesk

  The Portal Brings Caltrain Into the Salesforce Transit Center

  425 Mission St, San Francisco, CA 94105Transbay Joint Powers Authority

  

  Starts 12/31/2035DELAYED9 years late40% CONFIDENCEin 9.3 yearsTJPA's^[1] project page gives an "anticipated revenue service date of 2035, funding dependent", a year rather than a day, so it sits at the end of that year.

  The Portal takes Caltrain, and later California High-Speed Rail, underground from Fourth and King into the train box already built beneath the Salesforce Transit Center, with a new underground station at Fourth and Townsend. TJPA's July 2025 indicative estimate put the capital cost at about $7.57 billion, of which the federal government has pledged $3.38 billion.

  $7.6B

  0.61

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• Transport09/15/2026@BuildDesk

  Sound Transit Delays West Seattle Link Extension to 2035

  West Seattle, Seattle, Washington, USASound Transit

  

  Starts 12/31/2035DELAYED3 years late67% CONFIDENCEin 9.3 yearsGiven as scheduled, per the source^[1]: Sound Transit "pushed back the opening of its West Seattle Link Extension from 2032 to 2035."

  Sound Transit pushed back the opening of the West Seattle Link light rail extension, one flagship piece of its $54BN Sound Transit 3 build-out.

  $54B

  0.61

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• Transport09/15/2026@BuildDesk

  LA's $14BN Airport Upgrade

  1 World Way, Los Angeles, California, United StatesLos Angeles World Airports

  

  Starts 10/31/2026DELAYED3 years late65% CONFIDENCEin 38 daysDate has moved, per the source^[1]: "the posted date is now October 2026. That probably won’t happen either" - the APM has already blown past targets of 2023, January 2026 and the June 2026 World Cup.

  LAX’s $3.34BN Automated People Mover - the driverless train meant to finally connect the airport’s terminals to LA’s Metro system - has slipped years past its original target and still has no confirmed opening date.

  $3.3B

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