Transport09/15/2026@BuildDesk
LA's New Sixth Street Viaduct Opens as the 'Ribbon of Light'
6th Street Viaduct, Santa Ana Freeway, Boyle Heights, Los Angeles, Los Angeles County, California, 90021, United States
Starts 07/09/2022CONFIRMED 85% CONFIDENCE4.2 years agoHappened as dated, per the source^[1]: "Dramatic new 6th Street Bridge opens, delivering a 'love letter' to Los Angeles," reported the day of the public opening.
Los Angeles opened its replacement Sixth Street Viaduct, nicknamed the 'Ribbon of Light,' on 9 July 2022, six years after demolishing the earthquake-vulnerable 1932 original.
$588M
0.68
Architecture09/15/2026@BuildDesk
Little Island Opens on the Hudson River
Little Island, Hudson River Park, New York, NY, USA
Starts 05/21/2021CONFIRMED 84% CONFIDENCE5.3 years agoHappened as dated, per the source^[1]: "The park officially opened on May 21, 2021."
Little Island, a 2.4-acre park raised on sculpted concrete piles over the Hudson River, opened to the public at the site of Manhattan’s former Pier 54.
$260M
0.67
Transport09/15/2026@BuildDesk
The Brooklyn Bridge Opens
Brooklyn Bridge, New York, NY, USA
Starts 05/24/1883CONFIRMED 82% CONFIDENCE143.3 years agoHappened as dated, per the source^[1]: "Brooklyn Bridge opens | May 24, 1883".
New York's Brooklyn Bridge opened to the public, completing a 13-year construction effort that Emily Warren Roebling steered to completion after her husband was incapacitated by decompression sickness.
0.66
Transport09/20/2026@BuildDesk
The Park at Penn's Landing Opens Over a Capped I-95
Park at Penn's Landing, Columbus Boulevard at Walnut Street, Philadelphia, PA 19106Delaware River Waterfront Corporation
Starts 01/01/2030ESTIMATED 50% CONFIDENCEin 3.3 yearsThe park's own site gives a pair of years rather than a day: the "11.5-acre civic park under construction along Philadelphia's Central Delaware Waterfront" is "Set to open in 2029/2030".^[1]
An 11.5-acre civic park on a deck over Interstate 95 and Columbus Boulevard, stitching Old City back to the Delaware River waterfront. PennDOT is building the $329 million cap underneath and the waterfront corporation the park on top of it.
0.65
Architecture09/15/2026@BuildDesk
One Park Drive Opens in London's Wood Wharf
One Park Drive, Wood Wharf, London E14, United KingdomCanary Wharf Group
Starts 07/29/2021CONFIRMED 86% CONFIDENCE5.2 years agoHappened as dated, per the source^[1]: "Completed: 2021".
Herzog & de Meuron's 205-metre One Park Drive tower, the centrepiece of Canary Wharf's new Wood Wharf district on reclaimed Thames-side land, opened to its first residents in London.
0.65
Architecture09/20/2026@BuildDesk
Six Flags Qiddiya City Opens Three Years Behind Its First Date
Qiddiya City, Riyadh Province, Saudi ArabiaQiddiya Investment Company
Starts 12/31/2025DELAYED4 years late40% CONFIDENCE267 days agoWikipedia^[1] records that "On November 16, 2025, it was announced that Six Flags Qiddiya City would officially open on December 31, 2025."
The first Six Flags park in Asia opened outside Riyadh with 28 attractions across six themed areas, among them Falcons Flight, billed as the world's tallest, fastest and longest roller coaster. Qiddiya Investment Company awarded a $1 billion construction contract to Almabani General Contractors and Bouygues Batiment International in December 2021.
0.62
Transport09/15/2026@BuildDesk
Golden Gate Bridge Opens to Pedestrians
Golden Gate Bridge, San Francisco, California, USA
Starts 05/27/1937CONFIRMED 75% CONFIDENCE89.3 years agoHappened as dated, per the source^[1]: "opened on May 27, 1937".
San Francisco's Golden Gate Bridge, a mile-long suspension span across a notoriously treacherous strait, opened to the public with a Pedestrian Day that drew roughly 200,000 walkers.
0.61
Transport09/15/2026@BuildDesk
Silvertown Tunnel Opens Under the Thames
Silvertown, London Borough of Newham, London, United KingdomTransport for London
Starts 04/07/2025CONFIRMED 90% CONFIDENCE1.5 years agoHappened as dated, per the source^[1]: "The Silvertown Tunnel will open on 7 April 2025, as confirmed by TfL^[2]."
Transport for London opened the Silvertown Tunnel, a new road crossing under the Thames built to relieve the perennially congested Blackwall Tunnel a few hundred metres away.
$2.8B
0.61
Architecture09/15/2026@BuildDesk
Seoul's Twin Eye Ferris Wheel Targets a 2028 Opening
Peace Park, Sangam-dong, Mapo District, Seoul, South KoreaSeoul Metropolitan Government
Starts 12/31/2028ESTIMATED 52% CONFIDENCEin 2.3 yearsGiven as scheduled, per the source^[1]: "Seoul plans to complete the 910.2 billion won ($702 million) Ferris wheel by 2028".
Seoul's long-troubled giant Ferris wheel, now called Seoulling, is targeting a 2028 opening at Peace Park after two earlier wheel designs were scrapped.
0.60
Architecture09/15/2026@BuildDesk
Siam Park Opens as a Thai-Themed Water Park in Tenerife
Av. Siam, 38660 Adeje, Santa Cruz de Tenerife, SpainLoro Parque
Starts 09/15/2008CONFIRMED 78% CONFIDENCE18.0 years agoWikipedia's^[2] Siam Park (Tenerife) entry documents the park opening to the public on September 15, 2008 after construction problems delayed the originally planned 2007 opening.
The Loro Parque Company opened Siam Park in Costa Adeje, Tenerife, a Thai-themed water park that would go on to be ranked the world's best by TripAdvisor.
0.60
Architecture09/15/2026@BuildDesk
The Vessel Opens at Hudson Yards
Hudson Yards, Manhattan, New York, NY, USARelated Companies
Starts 03/15/2019CONFIRMED 89% CONFIDENCE7.5 years agoConfirmed against contemporaneous coverage of the public opening. Happened as dated, per the source^[1]: "The Vessel opened to the public on March 15, 2019".
Thomas Heatherwick's climbable honeycomb staircase, The Vessel, opens to the public as the centrepiece of Manhattan's new Hudson Yards district.
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Transport09/20/2026@BuildDesk
Downtown San Diego's COASTER Platform Opens
Harbor Drive, Downtown San Diego, CaliforniaNorth County Transit District
Starts 12/01/2027DELAYED11 months late68% CONFIDENCEin 1.2 yearsNCTD's project page anticipated the platform "open to passengers in early 2027", while reporting from February 2026 has construction starting that spring and the station opening "in late-2027 or early-2028"; the date takes the later window.^[1]
A new COASTER commuter-rail platform on Harbor Drive between 1st and 5th Streets, by the Gaslamp Quarter, the convention centre and Petco Park, with San Diego Trolley connections either side. The $33 million project also adds a pocket track so trains can run more often.
$33M
0.59

3 months late

The LA Local^[1] (September 16, 2026): the park "won't open until early 2027, months later than city officials had expected" and no specific date was given; early 2027 is taken as the end of March.

First promised for 12/31/2026; now 3 months later. Stated: the city's Bureau of Engineering scheduled the park to be completed in 2026 and it "was set to open later this year"; playground-equipment scheduling pushed it to early 2027, a delay of about three months or more.

Start: Mar 31, 202740% CONFIDENCE Low confidencefrom the source

The Park Under the Sixth Street Bridge Opens

Twelve acres of fields, courts, a dog park and an arts plaza with an amphitheater beneath the Sixth Street Viaduct, on both banks of the LA River between Boyle Heights and the Arts District.

The Sixth Street PARC (Park, Arts, River & Connectivity), a 12-acre park beneath the Sixth Street Bridge, will not open until early 2027, months later than city officials expected^[1]
The delay comes from scheduling changes to the installation of playground equipment, according to the Bureau of Engineering; the city gave no specific opening date^[1][4]
Construction began in 2023, a year after the bridge opened, and residents have raised concerns about the park's maintenance and safety, including possible homeless encampments^[1]
The Bureau of Engineering had scheduled completion for 2026; it gives the project's cost as $60 million, funded mainly by the 2018 Parks and Water Bond Act^[2][3]
Streetsblog found construction nearly complete in January 2026, with paths and landscaping in, especially east of the river^[5]

Notable features

12 acres on both sides of the LA River, mostly in Boyle Heights with a smaller part in the Arts District^[2]
The Leonard Hill Arts Plaza with a performance amphitheater, garden and terrace seating, plus a cafe, dog park, fitness equipment, sports fields and courts, children's play areas and skate elements^[1][3]

@BuildDesk

References 573% CONFIDENCE

The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.

[1]40%
thelalocal.org/news/park-6th-street-bridge-wont-open-until-2027
thelalocal.org· Posted Sep 24, 2026· Starts Mar 31, 2027 ✓· 23% of score
The LA Local (September 16, 2026): the park "won't open until early 2027, months later than city officials had expected" and no specific date was given; early 2027 is taken as the end of March.
[2]85%
Sixth Street PARC (Park, Arts, River & Connectivity) Project
engineering.lacity.gov· Added Sep 24, 2026· 23% of score
Bureau of Engineering: construction of the $60 million project began in fall 2023; 12 acres of open space under and beside the viaduct; the Leonard Hill Arts Plaza; funded mainly by the 2018 Parks and Water Bond Act; to be completed in 2026.^[1]
[3]80%
Sixth Street PARC Project
engineering.lacity.gov· Added Sep 24, 2026· 23% of score
Bureau of Engineering: the PARC is scheduled to be completed in 2026 and will include soccer fields, trees and paths, the arts plaza, an amphitheater, restrooms, a dog park, skate elements and courts.^[1]
[4]85%
Park under 6th Street Bridge won't open until 2027
laist.com· Published Sep 17, 2026· 22% of score
LAist's copy of the Boyle Heights Beat story: the 12-acre park won't open until early 2027 because of playground-equipment scheduling changes, per Bureau of Engineering spokesperson Mary Nemick.
[5]80%
Eyes on the Street: 6th Street Viaduct 'PARC' Construction
la.streetsblog.org· Published Jan 26, 2026· 9% of score
Photographed on January 17, 2026: construction nearly complete, especially east of the river, and expected to finish in 2026.^[1]

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1The Park Under the Sixth Street Bridge Opens

Transport09/15/2026@BuildDesk
LA's New Sixth Street Viaduct Opens as the 'Ribbon of Light'
6th Street Viaduct, Santa Ana Freeway, Boyle Heights, Los Angeles, Los Angeles County, California, 90021, United States
Starts 07/09/2022CONFIRMED 85% CONFIDENCE4.2 years agoHappened as dated, per the source^[1]: "Dramatic new 6th Street Bridge opens, delivering a 'love letter' to Los Angeles," reported the day of the public opening.
Los Angeles opened its replacement Sixth Street Viaduct, nicknamed the 'Ribbon of Light,' on 9 July 2022, six years after demolishing the earthquake-vulnerable 1932 original.
$588M
0.68
Architecture09/15/2026@BuildDesk
Little Island Opens on the Hudson River
Little Island, Hudson River Park, New York, NY, USA
Starts 05/21/2021CONFIRMED 84% CONFIDENCE5.3 years agoHappened as dated, per the source^[1]: "The park officially opened on May 21, 2021."
Little Island, a 2.4-acre park raised on sculpted concrete piles over the Hudson River, opened to the public at the site of Manhattan’s former Pier 54.
$260M
0.67
Transport09/15/2026@BuildDesk
The Brooklyn Bridge Opens
Brooklyn Bridge, New York, NY, USA
Starts 05/24/1883CONFIRMED 82% CONFIDENCE143.3 years agoHappened as dated, per the source^[1]: "Brooklyn Bridge opens | May 24, 1883".
New York's Brooklyn Bridge opened to the public, completing a 13-year construction effort that Emily Warren Roebling steered to completion after her husband was incapacitated by decompression sickness.
0.66
Transport09/20/2026@BuildDesk
The Park at Penn's Landing Opens Over a Capped I-95
Park at Penn's Landing, Columbus Boulevard at Walnut Street, Philadelphia, PA 19106Delaware River Waterfront Corporation
Starts 01/01/2030ESTIMATED 50% CONFIDENCEin 3.3 yearsThe park's own site gives a pair of years rather than a day: the "11.5-acre civic park under construction along Philadelphia's Central Delaware Waterfront" is "Set to open in 2029/2030".^[1]
An 11.5-acre civic park on a deck over Interstate 95 and Columbus Boulevard, stitching Old City back to the Delaware River waterfront. PennDOT is building the $329 million cap underneath and the waterfront corporation the park on top of it.
0.65
Architecture09/15/2026@BuildDesk
One Park Drive Opens in London's Wood Wharf
One Park Drive, Wood Wharf, London E14, United KingdomCanary Wharf Group
Starts 07/29/2021CONFIRMED 86% CONFIDENCE5.2 years agoHappened as dated, per the source^[1]: "Completed: 2021".
Herzog & de Meuron's 205-metre One Park Drive tower, the centrepiece of Canary Wharf's new Wood Wharf district on reclaimed Thames-side land, opened to its first residents in London.
0.65
Architecture09/20/2026@BuildDesk
Six Flags Qiddiya City Opens Three Years Behind Its First Date
Qiddiya City, Riyadh Province, Saudi ArabiaQiddiya Investment Company
Starts 12/31/2025DELAYED4 years late40% CONFIDENCE267 days agoWikipedia^[1] records that "On November 16, 2025, it was announced that Six Flags Qiddiya City would officially open on December 31, 2025."
The first Six Flags park in Asia opened outside Riyadh with 28 attractions across six themed areas, among them Falcons Flight, billed as the world's tallest, fastest and longest roller coaster. Qiddiya Investment Company awarded a $1 billion construction contract to Almabani General Contractors and Bouygues Batiment International in December 2021.
0.62
Transport09/15/2026@BuildDesk
Golden Gate Bridge Opens to Pedestrians
Golden Gate Bridge, San Francisco, California, USA
Starts 05/27/1937CONFIRMED 75% CONFIDENCE89.3 years agoHappened as dated, per the source^[1]: "opened on May 27, 1937".
San Francisco's Golden Gate Bridge, a mile-long suspension span across a notoriously treacherous strait, opened to the public with a Pedestrian Day that drew roughly 200,000 walkers.
0.61
Transport09/15/2026@BuildDesk
Silvertown Tunnel Opens Under the Thames
Silvertown, London Borough of Newham, London, United KingdomTransport for London
Starts 04/07/2025CONFIRMED 90% CONFIDENCE1.5 years agoHappened as dated, per the source^[1]: "The Silvertown Tunnel will open on 7 April 2025, as confirmed by TfL^[2]."
Transport for London opened the Silvertown Tunnel, a new road crossing under the Thames built to relieve the perennially congested Blackwall Tunnel a few hundred metres away.
$2.8B
0.61
Architecture09/15/2026@BuildDesk
Seoul's Twin Eye Ferris Wheel Targets a 2028 Opening
Peace Park, Sangam-dong, Mapo District, Seoul, South KoreaSeoul Metropolitan Government
Starts 12/31/2028ESTIMATED 52% CONFIDENCEin 2.3 yearsGiven as scheduled, per the source^[1]: "Seoul plans to complete the 910.2 billion won ($702 million) Ferris wheel by 2028".
Seoul's long-troubled giant Ferris wheel, now called Seoulling, is targeting a 2028 opening at Peace Park after two earlier wheel designs were scrapped.
0.60
Architecture09/15/2026@BuildDesk
Siam Park Opens as a Thai-Themed Water Park in Tenerife
Av. Siam, 38660 Adeje, Santa Cruz de Tenerife, SpainLoro Parque
Starts 09/15/2008CONFIRMED 78% CONFIDENCE18.0 years agoWikipedia's^[2] Siam Park (Tenerife) entry documents the park opening to the public on September 15, 2008 after construction problems delayed the originally planned 2007 opening.
The Loro Parque Company opened Siam Park in Costa Adeje, Tenerife, a Thai-themed water park that would go on to be ranked the world's best by TripAdvisor.
0.60
Architecture09/15/2026@BuildDesk
The Vessel Opens at Hudson Yards
Hudson Yards, Manhattan, New York, NY, USARelated Companies
Starts 03/15/2019CONFIRMED 89% CONFIDENCE7.5 years agoConfirmed against contemporaneous coverage of the public opening. Happened as dated, per the source^[1]: "The Vessel opened to the public on March 15, 2019".
Thomas Heatherwick's climbable honeycomb staircase, The Vessel, opens to the public as the centrepiece of Manhattan's new Hudson Yards district.
0.59
Transport09/20/2026@BuildDesk
Downtown San Diego's COASTER Platform Opens
Harbor Drive, Downtown San Diego, CaliforniaNorth County Transit District
Starts 12/01/2027DELAYED11 months late68% CONFIDENCEin 1.2 yearsNCTD's project page anticipated the platform "open to passengers in early 2027", while reporting from February 2026 has construction starting that spring and the station opening "in late-2027 or early-2028"; the date takes the later window.^[1]
A new COASTER commuter-rail platform on Harbor Drive between 1st and 5th Streets, by the Gaslamp Quarter, the convention centre and Petco Park, with San Diego Trolley connections either side. The $33 million project also adds a pocket track so trains can run more often.
$33M
0.59

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