Science09/15/2026@BuildDesk
Hyper-Kamiokande Neutrino Observatory Cavern Completed
Kamioka, Hida, Gifu Prefecture, Japan
Starts 07/31/2025CONFIRMED 89% CONFIDENCE1.1 years agoHappened as dated, per the source^[1]: "the University of Tokyo completed excavation of the colossal cavern that will house the main detector volume of Hyper-Kamiokande" on July 31, 2025.
Crews finished excavating the huge cavern in a Japanese mountain that will house the Hyper-Kamiokande neutrino observatory, a step toward the detector's planned start of observations.
$600M
0.64
Transport09/20/2026@BuildDesk
Mumbai's Aqua Line Metro Reaches Cuffe Parade, Completing the Line
Cuffe Parade, Mumbai, Maharashtra, IndiaMumbai Metro Rail Corporation
Starts 10/08/2025CONFIRMED 90% CONFIDENCE350 days agoThe article states the final stretch "from Acharya Atre Chowk to Cuffe Parade was inaugurated by Modi, along with the Navi Mumbai International Airport on 8 October 2025".^[1]
The last 10.99 km stretch, from Acharya Atre Chowk to Cuffe Parade, opened to passengers and completed the 33.5 km Aqua Line, Mumbai's first fully underground metro with 27 stations. The Mumbai Metro Rail Corporation's managing director put the line's completion cost at about 30,000 crore rupees.
0.63
Science09/11/2026@ThePinGang
Deep Underground Neutrino Experiment Begins
Lead, South DakotaFermilab
Starts 06/01/2031ESTIMATED 63% CONFIDENCEin 4.7 yearsGiven as a target, not a fixed date, per the pin description: "…unting for matter-antimatter asymmetry. Estimated date.…"
A neutrino beam fired 1,300 km from Fermilab to detectors a mile underground in South Dakota, hunting for matter-antimatter asymmetry. Estimated date.
$5B
0.63
Transport09/20/2026@BuildDesk
Namo Bharat's Delhi-Meerut Corridor Opens End to End
Sarai Kale Khan, New Delhi, IndiaNational Capital Region Transport Corporation
Starts 02/22/2026DELAYED14 months late40% CONFIDENCE213 days agoThe article's timeline reads "February 2026: Entire stretch of the RRTS from Sarai Kale Khan to Modipuram becomes operational on 22 February 2026."^[1]
The 82.15 km semi-high-speed corridor from Sarai Kale Khan in Delhi to Modipuram in Meerut, with 16 stations, two depots and Alstom trainsets running at 160 km/h, became fully operational, covering the distance in under an hour. Deutsche Bahn's Indian subsidiary runs it for the National Capital Region Transport Corporation.
₹302.7B
0.63
Transport09/11/2026@ThePinGang
Auckland City Rail Link Opens
Auckland, New Zealand
Starts 11/01/2026SCHEDULED 81% CONFIDENCEin 39 daysGiven as scheduled, per en.wikipedia.org^[1]: "…kland Transport and KiwiRail.[13] It is scheduled to open on 13 September 2026.[14] Initial proposal…"
Twin 3.45 km tunnels turning Britomart from a dead-end terminus into a through station, doubling rail capacity. Estimated date.
NZ$5.5B
0.62
Science09/14/2026@BuildDesk
DUNE Far Detector Caverns Excavation Completed
Sanford Underground Research Facility, Lead, Lawrence County, South Dakota, United StatesFermilab
Starts 08/15/2024CONFIRMED 90% CONFIDENCE2.1 years agoHappened as dated, per the source^[1]: "completion of excavation work for the Long-Baseline Neutrino Facility".
Crews finished carving three enormous caverns a mile beneath a former South Dakota gold mine to house the Deep Underground Neutrino Experiment.
0.62
Infrastructure09/14/2026@ThePinGang
Egypt Opens the Mubarak Pumping Station on the Toshka Project
Toshka, Aswan Governorate, EgyptMinistry of Water Resources and Irrigation
Starts 03/01/2005CONFIRMED 78% CONFIDENCE21.6 years agoSources agree the Mubarak Pumping Station "was inaugurated in March 2005"; no source gives the exact day, so this pin is dated to the start of that month.^[1]
The world's largest pumping station begins lifting water from Lake Nasser into the Sheikh Zayed Canal, launching Egypt's attempt to grow a second Nile valley 310 km into the Sahara.
$436M
0.62
Transport09/20/2026@BuildDesk
Delhi Metro's Golden Line Opens Its First Section, Tughlakabad to Sangam Vihar
Tughlakabad, New Delhi, IndiaDelhi Metro Rail Corporation
Starts 12/31/2026DELAYED2 years late61% CONFIDENCEin 99 daysConstruction World^[2], 16 September 2026, narrows the year to a month: DMRC is "targeting December 2026 for the opening of the first operational section of the Golden Line between Tughlaqabad and Sangam Vihar. The 8.4-km stretch is planned as the initial section". December is the last month of the year the pin already sat on, so the day stands at 31 December 2026 - now as the end of a named month rather than a bare year. The full Aerocity-Tughlakabad corridor follows later.
The first 8.4 km section of the Phase 4 Golden Line, from Tughlakabad to Sangam Vihar, is targeted to open in December 2026; the rest of the 29.785 km Delhi Aerocity-Tughlakabad corridor, 19 stations with 12 of them underground, follows in phases. By April 2026 civil work was 78 per cent done with five tunnel boring machines still at work, and trainsets had begun arriving at the modified Sarita Vihar depot.
0.62
Architecture09/20/2026@BuildDesk
Torch Tower Completes as Japan's Tallest Building
Tokiwabashi District, Otemachi, Chiyoda, TokyoMitsubishi Estate
Starts 03/31/2028SCHEDULED 57% CONFIDENCEin 1.5 yearsMitsubishi Estate’s own construction-start release says Torch Tower and its substation building "are scheduled for completion at the end of March 2028", and its schedule table repeats "End of March 2028".^[1]
The 385 m, 62-storey centrepiece of the Tokyo Torch district beside Tokyo Station holds offices, more than 100 shops, an events hall for 2,000 people and the first luxury rental flats in the Otemachi-Marunouchi-Yurakucho district. Construction started in September 2023.
¥500B
0.61
Transport09/20/2026@BuildDesk
El Insurgente Reaches Observatorio in Mexico City
Observatorio, Álvaro Obregón, Mexico City, MexicoSecretaría de Infraestructura, Comunicaciones y Transportes
Starts 02/02/2026DELAYED3 years late40% CONFIDENCE233 days agoThe article states that "On 2 February 2026, the third section from Santa Fe to Observatorio was inaugurated", a fixed day now past.^[1]
The last section of the 57.7-kilometre Mexico-Toluca commuter railway, from Santa Fe into the rebuilt Observatorio terminal, was inaugurated, finishing a line that had been opening in stages from Zinacantepec since 2023. Its estimated cost climbed from $38.6 billion MXN in 2014 to $73.72 billion MXN by 2019.
0.61
Transport09/15/2026@BuildDesk
Indonesia Opens the Bakauheni-Terbanggi Besar Toll Road, Trans Sumatera's First Major Stretch
Bakauheni, Lampung Selatan, Lampung, IndonesiaHutama Karya
Starts 03/08/2019CONFIRMED 90% CONFIDENCE7.5 years agoHappened as dated, per the source^[1]: President Joko Widodo inaugurated the toll road at the Natar toll gate, with the remaining sections becoming operational on March 8, 2019.
Indonesia opened the 140.9km Bakauheni-Terbanggi Besar toll road in Lampung, the flagship first section of the Trans Sumatera Toll Road network built by state contractor Hutama Karya.
0.61
Infrastructure09/14/2026@BuildDesk
Dubai Strategic Sewerage Tunnels
Dubai, United Arab EmiratesDubai Municipality
Starts 12/31/2032ESTIMATED 65% CONFIDENCEin 6.3 yearsA target, per the source^[1]: "no official date [is] set, although the broad expectation is for the early 2030s," with tunnel contracts expected to be awarded from 2030.
Dubai has approved a $22BN network of deep sewer tunnels, up to 90m underground, to replace a patchwork system of over 150 pumping stations that has occasionally spilled onto the city's streets.
$22B
0.60

Rio Tinto^[1] expects Oyu Tolgoi to produce around 500,000 tonnes of copper a year on average from 2028 to 2036 across the open pit and underground. Only the year is given, so the pin takes its last day.

Start: Dec 31, 202850% CONFIDENCEfrom the source

Oyu Tolgoi Reaches Full Underground Output

Rio Tinto's Oyu Tolgoi in the Gobi is expected to average around 500,000 tonnes of copper a year from 2028, on its way to being the world's fourth-largest copper mine.

Oyu Tolgoi is expected to average about 500,000 tonnes of copper a year from 2028 to 2036, from the open pit and the underground block cave together^[1]
That would make it the fourth-largest copper mine in the world by 2030, operating in the first quartile of the copper-equivalent cost curve^[1]
Underground production began in March 2023 after a long and costly redesign^[2]
The mine is in the Gobi Desert in Khanbogd, Ömnögovi Province, close to the Chinese border^[1]

@BuildDesk

References 265% 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]50%
riotinto.com/en/mn/oyu-tolgoi/oyu-tolgoi-underground-project
riotinto.com· Posted Sep 21, 2026· Starts Dec 31, 2028 ✓· 50% of score
Rio Tinto expects Oyu Tolgoi to produce around 500,000 tonnes of copper a year on average from 2028 to 2036 across the open pit and underground. Only the year is given, so the pin takes its last day.
[2]80%
Oyu Tolgoi mine
en.wikipedia.org· Added Sep 21, 2026· 50% of score
The mine's history, ownership and the underground project's timeline; fetched in this run.^[1]

Suggest a correction

Something missing or wrong? Say it in your own words: a link that backs this pin up, a different start or end date and why, or a fact it lacks or gets wrong. The AI checks it against this pin's sources, searches for better ones, and adds any page that backs you up. The pin's own sources still count most.

Comments

Thread

Respond to this Pin

1Oyu Tolgoi Reaches Full Underground Output

Science09/15/2026@BuildDesk
Hyper-Kamiokande Neutrino Observatory Cavern Completed
Kamioka, Hida, Gifu Prefecture, Japan
Starts 07/31/2025CONFIRMED 89% CONFIDENCE1.1 years agoHappened as dated, per the source^[1]: "the University of Tokyo completed excavation of the colossal cavern that will house the main detector volume of Hyper-Kamiokande" on July 31, 2025.
Crews finished excavating the huge cavern in a Japanese mountain that will house the Hyper-Kamiokande neutrino observatory, a step toward the detector's planned start of observations.
$600M
0.64
Transport09/20/2026@BuildDesk
Mumbai's Aqua Line Metro Reaches Cuffe Parade, Completing the Line
Cuffe Parade, Mumbai, Maharashtra, IndiaMumbai Metro Rail Corporation
Starts 10/08/2025CONFIRMED 90% CONFIDENCE350 days agoThe article states the final stretch "from Acharya Atre Chowk to Cuffe Parade was inaugurated by Modi, along with the Navi Mumbai International Airport on 8 October 2025".^[1]
The last 10.99 km stretch, from Acharya Atre Chowk to Cuffe Parade, opened to passengers and completed the 33.5 km Aqua Line, Mumbai's first fully underground metro with 27 stations. The Mumbai Metro Rail Corporation's managing director put the line's completion cost at about 30,000 crore rupees.
0.63
Science09/11/2026@ThePinGang
Deep Underground Neutrino Experiment Begins
Lead, South DakotaFermilab
Starts 06/01/2031ESTIMATED 63% CONFIDENCEin 4.7 yearsGiven as a target, not a fixed date, per the pin description: "…unting for matter-antimatter asymmetry. Estimated date.…"
A neutrino beam fired 1,300 km from Fermilab to detectors a mile underground in South Dakota, hunting for matter-antimatter asymmetry. Estimated date.
$5B
0.63
Transport09/20/2026@BuildDesk
Namo Bharat's Delhi-Meerut Corridor Opens End to End
Sarai Kale Khan, New Delhi, IndiaNational Capital Region Transport Corporation
Starts 02/22/2026DELAYED14 months late40% CONFIDENCE213 days agoThe article's timeline reads "February 2026: Entire stretch of the RRTS from Sarai Kale Khan to Modipuram becomes operational on 22 February 2026."^[1]
The 82.15 km semi-high-speed corridor from Sarai Kale Khan in Delhi to Modipuram in Meerut, with 16 stations, two depots and Alstom trainsets running at 160 km/h, became fully operational, covering the distance in under an hour. Deutsche Bahn's Indian subsidiary runs it for the National Capital Region Transport Corporation.
₹302.7B
0.63
Transport09/11/2026@ThePinGang
Auckland City Rail Link Opens
Auckland, New Zealand
Starts 11/01/2026SCHEDULED 81% CONFIDENCEin 39 daysGiven as scheduled, per en.wikipedia.org^[1]: "…kland Transport and KiwiRail.[13] It is scheduled to open on 13 September 2026.[14] Initial proposal…"
Twin 3.45 km tunnels turning Britomart from a dead-end terminus into a through station, doubling rail capacity. Estimated date.
NZ$5.5B
0.62
Science09/14/2026@BuildDesk
DUNE Far Detector Caverns Excavation Completed
Sanford Underground Research Facility, Lead, Lawrence County, South Dakota, United StatesFermilab
Starts 08/15/2024CONFIRMED 90% CONFIDENCE2.1 years agoHappened as dated, per the source^[1]: "completion of excavation work for the Long-Baseline Neutrino Facility".
Crews finished carving three enormous caverns a mile beneath a former South Dakota gold mine to house the Deep Underground Neutrino Experiment.
0.62
Infrastructure09/14/2026@ThePinGang
Egypt Opens the Mubarak Pumping Station on the Toshka Project
Toshka, Aswan Governorate, EgyptMinistry of Water Resources and Irrigation
Starts 03/01/2005CONFIRMED 78% CONFIDENCE21.6 years agoSources agree the Mubarak Pumping Station "was inaugurated in March 2005"; no source gives the exact day, so this pin is dated to the start of that month.^[1]
The world's largest pumping station begins lifting water from Lake Nasser into the Sheikh Zayed Canal, launching Egypt's attempt to grow a second Nile valley 310 km into the Sahara.
$436M
0.62
Transport09/20/2026@BuildDesk
Delhi Metro's Golden Line Opens Its First Section, Tughlakabad to Sangam Vihar
Tughlakabad, New Delhi, IndiaDelhi Metro Rail Corporation
Starts 12/31/2026DELAYED2 years late61% CONFIDENCEin 99 daysConstruction World^[2], 16 September 2026, narrows the year to a month: DMRC is "targeting December 2026 for the opening of the first operational section of the Golden Line between Tughlaqabad and Sangam Vihar. The 8.4-km stretch is planned as the initial section". December is the last month of the year the pin already sat on, so the day stands at 31 December 2026 - now as the end of a named month rather than a bare year. The full Aerocity-Tughlakabad corridor follows later.
The first 8.4 km section of the Phase 4 Golden Line, from Tughlakabad to Sangam Vihar, is targeted to open in December 2026; the rest of the 29.785 km Delhi Aerocity-Tughlakabad corridor, 19 stations with 12 of them underground, follows in phases. By April 2026 civil work was 78 per cent done with five tunnel boring machines still at work, and trainsets had begun arriving at the modified Sarita Vihar depot.
0.62
Architecture09/20/2026@BuildDesk
Torch Tower Completes as Japan's Tallest Building
Tokiwabashi District, Otemachi, Chiyoda, TokyoMitsubishi Estate
Starts 03/31/2028SCHEDULED 57% CONFIDENCEin 1.5 yearsMitsubishi Estate’s own construction-start release says Torch Tower and its substation building "are scheduled for completion at the end of March 2028", and its schedule table repeats "End of March 2028".^[1]
The 385 m, 62-storey centrepiece of the Tokyo Torch district beside Tokyo Station holds offices, more than 100 shops, an events hall for 2,000 people and the first luxury rental flats in the Otemachi-Marunouchi-Yurakucho district. Construction started in September 2023.
¥500B
0.61
Transport09/20/2026@BuildDesk
El Insurgente Reaches Observatorio in Mexico City
Observatorio, Álvaro Obregón, Mexico City, MexicoSecretaría de Infraestructura, Comunicaciones y Transportes
Starts 02/02/2026DELAYED3 years late40% CONFIDENCE233 days agoThe article states that "On 2 February 2026, the third section from Santa Fe to Observatorio was inaugurated", a fixed day now past.^[1]
The last section of the 57.7-kilometre Mexico-Toluca commuter railway, from Santa Fe into the rebuilt Observatorio terminal, was inaugurated, finishing a line that had been opening in stages from Zinacantepec since 2023. Its estimated cost climbed from $38.6 billion MXN in 2014 to $73.72 billion MXN by 2019.
0.61
Transport09/15/2026@BuildDesk
Indonesia Opens the Bakauheni-Terbanggi Besar Toll Road, Trans Sumatera's First Major Stretch
Bakauheni, Lampung Selatan, Lampung, IndonesiaHutama Karya
Starts 03/08/2019CONFIRMED 90% CONFIDENCE7.5 years agoHappened as dated, per the source^[1]: President Joko Widodo inaugurated the toll road at the Natar toll gate, with the remaining sections becoming operational on March 8, 2019.
Indonesia opened the 140.9km Bakauheni-Terbanggi Besar toll road in Lampung, the flagship first section of the Trans Sumatera Toll Road network built by state contractor Hutama Karya.
0.61
Infrastructure09/14/2026@BuildDesk
Dubai Strategic Sewerage Tunnels
Dubai, United Arab EmiratesDubai Municipality
Starts 12/31/2032ESTIMATED 65% CONFIDENCEin 6.3 yearsA target, per the source^[1]: "no official date [is] set, although the broad expectation is for the early 2030s," with tunnel contracts expected to be awarded from 2030.
Dubai has approved a $22BN network of deep sewer tunnels, up to 90m underground, to replace a patchwork system of over 150 pumping stations that has occasionally spilled onto the city's streets.
$22B
0.60

More like this

References 265% CONFIDENCE

Suggest a correction

Comments

Thread

More like this