クラマス川のダム、4基すべて撤去完了

Polavaram Irrigation Project Targets 2027 Completion

Polavaram, Andhra Pradesh, India

開始 2027/12/31推定確度 66%1.3 年後December 2027 is the official scheduled completion date (Deccan Chronicle^[3], 8 December 2025), with the agencies pushing to finish before the Godavari Pushkaralu in July 2027. Wikipedia's^[2] infobox instead expects July 2029. The pin keeps the official 2027 target its title is about, dated to the last day of that year, but as an estimate that later sources may not bear out.

India's Polavaram multi-purpose dam on the Godavari river, one of the country's largest irrigation and hydropower projects, is racing toward completion under a Rs 12,157 crore central funding boost.

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Gross Dam Raise Tops Out at 470 Feet

Gross Reservoir, Boulder County, Colorado, United StatesDenver Water

開始 2026/06/03確定確度 86%112 日前Happened as dated, per the source^[1]: "workers placed the final load of roller-compacted concrete on the top of the dam, bringing Gross Dam to a height of 470 feet."

Denver Water finished raising Colorado's Gross Dam by 131 feet, topping out the concrete work that will nearly triple the reservoir's storage capacity.

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European Bank for Reconstruction and DevelopmentMailuu-Suu, Jalal-Abad Region, Kyrgyzstan

EBRD-backed remediation of Kyrgyzstan's Mailuu-Suu tailings dam

開始 2030/12/31予定確度 75%4.3 年後Given as scheduled, per the source^[1]: the remediation works agreement covers "seven years of remediation works" with a "contract scheduled completion date" of 31/12/2030.

A €23M EBRD-backed grant funds a seven-year project to relocate radioactive uranium tailings from Mailuu-Suu's most dangerous dam, away from the Fergana Valley's water supply.

€23M

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JAVYSBohunice Nuclear Power Plant, Jaslovské Bohunice, Slovakia

Bohunice V1 Nuclear Reactors Fully Dismantled

開始 2022/07/29確定確度 90%4.2 年前Happened as dated, per the source^[1]: "The two VVER-440 V-230 reactors in Slovakia were decommissioned and disassembled on site".

Slovakia finished fully dismantling the Soviet-era V1 reactors at Bohunice in July 2022, one of the few nuclear plants taken apart down to the reactor vessels.

$1.3B

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United States Bureau of Reclamation

Hoover Dam Dedicated by President Roosevelt

Hoover Dam, Nevada-Arizona border, USA

Hoover Dam Dedicated by President Roosevelt

開始 1935/09/30確定確度 85%91 年前Happened as dated, per the source^[1]: "President Franklin D. Roosevelt dedicates dam September 30th."

President Franklin D. Roosevelt dedicated the Hoover Dam on the Colorado River, then the largest concrete structure ever built.

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Hidroituango Dam Crisis Forces Mass Evacuation in Colombia

EPMItuango, Antioquia, Colombia

開始 2018/05/12確定確度 81%8.4 年前Happened as dated, per the source^[1]: "On 12 May, a sudden release of water from the dam flooded municipalities of Puerto Valdivia and Taraza downstream."

A blocked diversion tunnel at Colombia's roughly $4 billion Hidroituango hydroelectric project triggered flooding and landslides that forced thousands of people downstream to evacuate.

$4B

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Роғун ГЭС, Ноҳияи Роғун, Тоҷикистон

Rogun Dam Targets Completion as World's Tallest

開始 2029/12/31推定確度 61%3.3 年後Given as scheduled, per the source^[1]: "the dam registered a significant advancement of works, with a rise of as much as 100 metres" during the past year, with full completion still targeted for 2029.

Tajikistan's Rogun Dam, a Soviet-era project restarted after independence, is targeted to reach full completion around 2029 as the world's tallest dam at roughly 335 metres.

$6.3B

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Panama Canal Wins Approval for Rio Indio Reservoir

Río Indio, Capira, Panamá Oeste, PanamaPanama Canal Authority

開始 2024/06/30確定確度 89%2.2 年前Happened as dated, per the source^[1]: "In 2024, a Supreme Court ruling overturned a law that had blocked the creation of the Indio River reservoir."

Panama's Supreme Court overturned a 2006 law blocking new reservoirs, clearing the way for a dam on the Rio Indio meant to secure the Panama Canal's water supply against worsening droughts.

$1.6B

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インフラ2026/09/14@ThePinGang

Queensland Reverses Course, Commits to Rebuilding Paradise Dam Wall in Place

Paradise Dam, Burnett River, Queensland, AustraliaSunwater

開始 2026/07/07確定確度 85%78 日前Happened as dated, per the source^[1]: "I don't accept the nonsensical argument that was being put up, which is an inferior, smaller wall downstream".

Queensland abandoned its plan for a new downstream dam in July 2026 and committed instead to rebuilding Paradise Dam's existing wall back to its original height.

A$60M

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Lesotho Delivers Its First Water to South Africa

Katse Dam, Lesotho

Lesotho Highlands Development Authority

Lesotho Delivers Its First Water to South Africa

開始 1998/01/22確定確度 80%28.7 年前Wikipedia^[2] gives an exact date: "Water delivery officially began on 22 January 1998," after the Katse Dam was completed in 1996 and its reservoir filled by 1997.

Water begins flowing from the newly completed Katse Dam through the Lesotho Highlands Water Project to Johannesburg, the first payment on a 1986 treaty that turns Lesotho’s rainfall into its biggest export.

ZAR 9.3B

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建築2026/09/14@BuildDesk

ソルトレーク神殿、免震化の耐震改修が完了

Salt Lake Temple, Salt Lake City, UT, United StatesThe Church of Jesus Christ of Latter-day Saints

開始 2026/06/30確定確度 88%85 日前出典によれば、記載の日付どおりに実施された。「6月25日木曜日から、建設作業員は392枚のプレートと免震装置をつなぐ1,500本超のボルトを取り外した」^[1]

作業員が19世紀建造のソルトレーク神殿の地下に免震（基礎免震）システムの設置を完了した。大地震の際に建物が地盤から切り離されて動けるようにする、総額24億ドルと見積もられる事業の一環。

$2.4B

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Kraftwerke OberhasliSpitallamm Dam, Grimsel Pass, Bern, Switzerland

New Spitallamm Dam Replaces Century-Old Cracked Wall

Swiss utility KWO finished building a new 113-metre arch dam directly in front of its cracked 1932 predecessor high in the Grimsel Pass.

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Polavaram Irrigation Project Targets 2027 Completion

Polavaram, Andhra Pradesh, India

India's Polavaram multi-purpose dam on the Godavari river, one of the country's largest irrigation and hydropower projects, is racing toward completion under a Rs 12,157 crore central funding boost.

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Gross Dam Raise Tops Out at 470 Feet

Gross Reservoir, Boulder County, Colorado, United StatesDenver Water

Denver Water finished raising Colorado's Gross Dam by 131 feet, topping out the concrete work that will nearly triple the reservoir's storage capacity.

0.60

European Bank for Reconstruction and DevelopmentMailuu-Suu, Jalal-Abad Region, Kyrgyzstan

EBRD-backed remediation of Kyrgyzstan's Mailuu-Suu tailings dam

A €23M EBRD-backed grant funds a seven-year project to relocate radioactive uranium tailings from Mailuu-Suu's most dangerous dam, away from the Fergana Valley's water supply.

€23M

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JAVYSBohunice Nuclear Power Plant, Jaslovské Bohunice, Slovakia

Bohunice V1 Nuclear Reactors Fully Dismantled

開始 2022/07/29確定確度 90%4.2 年前Happened as dated, per the source^[1]: "The two VVER-440 V-230 reactors in Slovakia were decommissioned and disassembled on site".

Slovakia finished fully dismantling the Soviet-era V1 reactors at Bohunice in July 2022, one of the few nuclear plants taken apart down to the reactor vessels.

$1.3B

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United States Bureau of Reclamation

Hoover Dam Dedicated by President Roosevelt

Hoover Dam, Nevada-Arizona border, USA

開始 1935/09/30確定確度 85%91 年前Happened as dated, per the source^[1]: "President Franklin D. Roosevelt dedicates dam September 30th."

President Franklin D. Roosevelt dedicated the Hoover Dam on the Colorado River, then the largest concrete structure ever built.

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Hidroituango Dam Crisis Forces Mass Evacuation in Colombia

EPMItuango, Antioquia, Colombia

開始 2018/05/12確定確度 81%8.4 年前Happened as dated, per the source^[1]: "On 12 May, a sudden release of water from the dam flooded municipalities of Puerto Valdivia and Taraza downstream."

A blocked diversion tunnel at Colombia's roughly $4 billion Hidroituango hydroelectric project triggered flooding and landslides that forced thousands of people downstream to evacuate.

$4B

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Роғун ГЭС, Ноҳияи Роғун, Тоҷикистон

Rogun Dam Targets Completion as World's Tallest

Tajikistan's Rogun Dam, a Soviet-era project restarted after independence, is targeted to reach full completion around 2029 as the world's tallest dam at roughly 335 metres.

$6.3B

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Panama Canal Wins Approval for Rio Indio Reservoir

Río Indio, Capira, Panamá Oeste, PanamaPanama Canal Authority

開始 2024/06/30確定確度 89%2.2 年前Happened as dated, per the source^[1]: "In 2024, a Supreme Court ruling overturned a law that had blocked the creation of the Indio River reservoir."

Panama's Supreme Court overturned a 2006 law blocking new reservoirs, clearing the way for a dam on the Rio Indio meant to secure the Panama Canal's water supply against worsening droughts.

$1.6B

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