1001 Smart Cities

Permanent project revision

Arroyo Maldonado relief tunnels & Buenos Aires's storm alert network

Revision 2026-10-05-p4-quality-run · effective 2026-10-05

Current revision. This is the snapshot used by the live entity page.

unreviewed

Quality run to P4: claim array, source dates, present-tense audit. Nothing in the entry's present tense has been contradicted: the tunnels still carry the Maldonado (Infobae, 2024, on their maintenance), and the city's sensor pages still describe monitoring and alerting, not automatic actuation. Three passages overstate their sources and get minimal fixes.

sha256:fab341a96e74f3a5d3ff75fde64cf5cc66d11278b1e60f499d575833c54a92ab
All revisions → Current entity page →

Change set

  • replace /snapshot/projectFingerprint — Updated projectFingerprint to the current sourced project record.
  • replace /snapshot/asOf — Updated asOf to the current sourced project record.
  • replace /snapshot/claims — Updated claims to the current sourced project record.
  • replace /snapshot/sources — Updated sources to the current sourced project record.
13
of 13 claims mapped
10
source dossiers
8
publication dates recorded
0
archives linked
0
exact locators
0
content captures hashed

Claims, one by one

The text below is copied verbatim from the published record. Each claim names the source dossiers that carry it; caveats stay attached to the claim they qualify.

Claim 1 clm-1b461d9b38442382 quantitative
Two bored tunnels — 9.8 km and 4.6 km, both 6 m across — have carried the culverted Maldonado's overflow since mid-2012
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this file
What the mapping says
The ICR describes two 'drainage tunnels (of length 9.8km and 4.6 km respectively and 6m inner diameter)' and notes 'the tunnels only began to be operated in early to mid-2012'. Infobae (2024) reports the conduits still in service and under routine inspection.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. World Bank — Implementation Completion and Results Report, ICR2686
  2. Infobae — inside the Maldonado conduits, 2 July 2024
Claim 2 clm-e7316d6b78c4303b quantitative
financed by a World Bank loan and sized for a 1-in-10-year storm
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this file
What the mapping says
IEG records an IBRD loan as 'the only source of financing'; the ICR says the works were 'designed to avoid flooding in the area of the City within the Maldonado Basin during rain events of 10 year intervals'.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. World Bank — IEG ICR Review, Urban Flood Prevention and Drainage (P088220)
  2. World Bank — Implementation Completion and Results Report, ICR2686
Claim 3 clm-8f575f216652c7ce descriptive
Water enters them hydraulically; no source describes a sensor in that loop.
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this file
What the mapping says
Neither the ICR's description of the tunnels nor Infobae's 2024 account of their operation mentions any sensor-controlled gate or pump on the tunnel inflow; Infobae describes inspection and cleaning, not control.
Caveat
This is a statement about what the sources describe, not a claim that no sensor exists.

Sources carrying this claim

  1. World Bank — Implementation Completion and Results Report, ICR2686
  2. Infobae — inside the Maldonado conduits, 2 July 2024
Claim 4 clm-87f282f818b0de26 descriptive
rain, wind, flow and level sensors feed a control desk
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this file
What the mapping says
'Los sensores monitorean en forma constante la lluvia, la temperatura, el viento, el caudal y el nivel del agua. Estos datos llegan a un tablero de control'.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. Gobierno de la Ciudad de Buenos Aires — Red hidrométrica
Claim 5 clm-eab8ed9b798bbfe6 quantitative
a Sistema de Alerta de Tormentas with automatic stations and a Doppler radar was begun in October 2016, its data to converge at the city's Centro Único de Coordinación y Control
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this file
What the mapping says
The programme page: 'Inicio: Octubre 2016'; a network of '34 estaciones meteorológicas automáticas, de las cuales 10 ya se encuentran transmitiendo datos'; 'Un radar doppler de alta definición y doble polaridad' then still being installed at Merlo; the component 'se integrará' into the Centro Único de Coordinación y Control.
Caveat
The page is an undated snapshot from around launch; it gives no current count of stations transmitting.

Sources carrying this claim

  1. Gobierno de la Ciudad de Buenos Aires — Sistema de Alerta de Tormentas
Claim 6 clm-b34a8707725f42c4 descriptive
Readings raise alerts and send crews — no source describes a pump or gate starting on a threshold
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this file
What the mapping says
The city's pages describe data reaching a control board 'con la finalidad de detectar variaciones en los caudales y anticipar posibles inconvenientes' and an alert system improving emergency handling; neither describes automatic actuation of pumps or gates.
Caveat
The 'send crews' half is inferred from the stated purpose (emergency management), not from a described dispatch procedure.

Sources carrying this claim

  1. Gobierno de la Ciudad de Buenos Aires — Red hidrométrica
  2. Gobierno de la Ciudad de Buenos Aires — Sistema de Alerta de Tormentas
Claim 7 clm-a8d72467d9e9922a descriptive
The Bank's own evaluation arm rated the loan Moderately Unsatisfactory
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this file
What the mapping says
IEG's ICR Review: 'Outcome Rating: Moderately Unsatisfactory'.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. World Bank — IEG ICR Review, Urban Flood Prevention and Drainage (P088220)
Claim 8 clm-e6d60b2d76ccf970 descriptive
the tunnels got built, but only two of six secondary-network groups were under way at closing
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this file
What the mapping says
IEG: the secondary drainage network 'was partially completed (works were underway in 2 of the 6 proposed areas), with the remainder expected to be completed with City funds'.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. World Bank — IEG ICR Review, Urban Flood Prevention and Drainage (P088220)
Claim 9 clm-a539a068df5e44d7 descriptive
funding fell short of a complete monitoring network under the loan
Published field
snippet · verbatim
Mapping
mapped · no interpretation or interpolation added by this file
What the mapping says
ICR: 'shortage of funding meant that the Project could not achieve the development of a complete hydrological monitoring network for the City'.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. World Bank — Implementation Completion and Results Report, ICR2686
Claim 10 clm-7db4e414c477082a quantitative
the works were designed to prevent flooding in the city's Maldonado basin in a 10-year storm, with about 342,968 direct beneficiaries in the basin's critical zone
Published field
impact · verbatim
Mapping
mapped · no interpretation or interpolation added by this file
What the mapping says
ICR: works 'designed to avoid flooding in the area of the City within the Maldonado Basin during rain events of 10 year intervals'; 'the total number of inhabitants of the critical zone within the Maldonado Basin was 342,968 people'.
Caveat
A design standard and an exposed population, not a measured reduction in flooding; IEG faulted the ICR for reporting outputs rather than outcomes.

Sources carrying this claim

  1. World Bank — Implementation Completion and Results Report, ICR2686
Claim 11 clm-771ab8e49e7e88f8 quantitative
The Bank's Independent Evaluation Group nonetheless rated the project's outcome Moderately Unsatisfactory, with the secondary drainage network under way in only 2 of 6 planned areas at closing
Published field
impact · verbatim
Mapping
mapped · no interpretation or interpolation added by this file
What the mapping says
IEG: 'Outcome Rating: Moderately Unsatisfactory'; secondary works 'underway in 2 of the 6 proposed areas'.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. World Bank — IEG ICR Review, Urban Flood Prevention and Drainage (P088220)
Claim 12 clm-86ffea366d58a752 descriptive
IEG's own lesson from this loan is that combining structural and non-structural components in one project needs specific implementation arrangements that give both weight
Published field
lesson · verbatim
Mapping
mapped · no interpretation or interpolation added by this file
What the mapping says
IEG's lessons: 'The combination of structural and non-structural components within the same project is challenging. This requires specific implementation arrangements that offer incentives for highlighting both dimensions.'
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. World Bank — IEG ICR Review, Urban Flood Prevention and Drainage (P088220)
Claim 13 clm-fd7164a6f0c5aa2d descriptive
here the tunnels were finished and the monitoring network was not
Published field
lesson · verbatim
Mapping
mapped · no interpretation or interpolation added by this file
What the mapping says
ICR: tunnels in operation from mid-2012; 'shortage of funding meant that the Project could not achieve the development of a complete hydrological monitoring network for the City'.
Caveat
No claim-specific caveat recorded

Sources carrying this claim

  1. World Bank — Implementation Completion and Results Report, ICR2686

Source dossiers and revision state

This layer records what is known about each source, what is still missing, and the exact snapshot this page is rendering. A missing date, archive or hash stays visible as missing.

unreviewed Revision 2026-10-05-p4-quality-run effective 2026-10-05 · created 2026-10-05

Awaiting operator and domain-expert review; publication of this revision implies neither.

sha256:fab341a96e74f3a5d3ff75fde64cf5cc66d11278b1e60f499d575833c54a92ab
Revision history → Permanent version link → Machine-readable record → Evidence Constitution →
13
of 13 claims mapped
10
source dossiers
8
publication dates recorded
0
archives linked
0
exact locators
0
content captures hashed

Governance facts carried by the record

Operator
Gobierno de la Ciudad de Buenos Aires — Dirección General Sistema Pluvial (drainage, sensors, pumping stations); alert data converges at the Centro Único de Coordinación y Control under the Ministerio de Justicia y Seguridad
Actor types
city-government
Funding model
mixed
Funding description
World Bank IBRD loan of US$134.01M plus City of Buenos Aires counterpart funds
Cost
≈US$193M actual (appraisal US$189M)
Ownership
Not recorded
Decision rights
Not recorded
Exit conditions
Not recorded

10 source dossiers

World Bank — IEG ICR Review, Urban Flood Prevention and Drainage (P088220) documents1.worldbank.org · 5 linked claims

Open original source ↗

Stable source ID
src-612738650401aac4
Publisher
Name not classified · documents1.worldbank.org
Type / language
web-page · language not classified
Published
2015-04-13
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-10-05
Dossier created
2026-10-05
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

Independent review. Gives the Moderately Unsatisfactory outcome rating, appraisal cost US$189M against actual US$193.01M, an IBRD loan of US$134.01M (originally EUR 98M), board approval 5 April 2005 and closing 31 August 2012 after extension from 31 December 2010; states the secondary drainage works were 'underway in 2 of the 6 proposed areas, with the remainder expected to be completed with City funds', and draws the lesson that combining structural and non-structural components in one project is challenging. The PDF at the same document ID returned unparseable binary to our fetcher; this identical .txt rendition was read instead.

Descriptive only — not page/paragraph exact
Claims linked
World Bank — Implementation Completion and Results Report, ICR2686 documents1.worldbank.org · 6 linked claims

Open original source ↗

Stable source ID
src-3d60bcaca9a45cca
Publisher
Name not classified · documents1.worldbank.org
Type / language
web-page · language not classified
Published
2012-11-28
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-10-05
Dossier created
2026-10-05
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

Source for the tunnel dimensions (9.8 km and 4.6 km, 6 m inner diameter, both in operation from mid-2012), the design standard ('designed to avoid flooding in the area of the City within the Maldonado Basin during rain events of 10 year intervals'), the figure of roughly 342,968 direct beneficiaries, and the statement that 'shortage of funding meant that the Project could not achieve the development of a complete hydrological monitoring network for the City'. PDF unparseable; .txt rendition read.

Descriptive only — not page/paragraph exact
Claims linked
Gobierno de la Ciudad de Buenos Aires — Sistema de Alerta de Tormentas buenosaires.gob.ar · 2 linked claims

Open original source ↗

Stable source ID
src-89defab6e6a67f4c
Publisher
Name not classified · buenosaires.gob.ar
Type / language
web-page · language not classified
Published
Not recorded
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-10-05
Dossier created
2026-10-05
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

Operator page. Dates the system to October 2016, describes a network of 34 automatic meteorological stations 'of which 10 are already transmitting data', a dual-polarisation Doppler radar then still being installed at Merlo, and data converging at the Centro Único de Coordinación y Control, 'currently operated by the Ministry of Justice and Security'. The page reads as an undated snapshot close to launch — we did not find a current count of stations actually transmitting, so the entry claims none. Nothing on the page describes automatic actuation of pumps or gates.

Descriptive only — not page/paragraph exact
Claims linked
Gobierno de la Ciudad de Buenos Aires — Red hidrométrica buenosaires.gob.ar · 2 linked claims

Open original source ↗

Stable source ID
src-63a6bc265f8902a2
Publisher
Name not classified · buenosaires.gob.ar
Type / language
web-page · language not classified
Published
Not recorded
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-10-05
Dossier created
2026-10-05
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

Confirms the sensing layer: 'Los sensores monitorean en forma constante la lluvia, la temperatura, el viento, el caudal y el nivel del agua', feeding 'un tablero de control donde se visualizan en mapas y gráficos con la finalidad de detectar variaciones en los caudales y anticipar posibles inconvenientes'. No sensor count, no public data feed and no automatic response described — the basis for this entry's placement as warning-only.

Descriptive only — not page/paragraph exact
Claims linked
Infobae — inside the Maldonado conduits, 2 July 2024 infobae.com · 2 linked claims

Open original source ↗

Stable source ID
src-f22896dd44b4e26a
Publisher
Name not classified · infobae.com
Type / language
web-page · language not classified
Published
2024-07-02
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-10-05
Dossier created
2026-10-05
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

Describes maintenance rather than control: constant inspection because 'en esos conductos pluviales una obstrucción puede generar un problema muy grande', robots in the smaller pipes, cleaning of some 900 km of conduits and 30,000 sumideros by Espacio Público e Higiene Urbana, and a 6 m conduit that routes inflow from the Province to the Riachuelo via the Cildañez. Also cites rainfall up about 11% over two decades. No sensor-driven control is mentioned anywhere in the piece.

Descriptive only — not page/paragraph exact
Claims linked
La Nación — flooding in the city, 8 February 2024 lanacion.com.ar · background

Open original source ↗

Stable source ID
src-5b02ef8a3518cd64
Publisher
Name not classified · lanacion.com.ar
Type / language
web-page · language not classified
Published
2024-02-08
Updated
2024-02-09
Source last checked
No source-level check date
Record last verified
2026-10-05
Dossier created
2026-10-05
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

Counterweight: flooded streets and businesses and three subway lines out of service, a decade after the tunnels opened. Surfaced via search with headline and date; the article page itself was not fetched.

Descriptive only — not page/paragraph exact
Claims linked
Background source; no baseline claim points here
Infobae — storm across the AMBA, 25 October 2025 infobae.com · background

Open original source ↗

Stable source ID
src-d12d2fd7ea930f0c
Publisher
Name not classified · infobae.com
Type / language
web-page · language not classified
Published
2025-10-25
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-10-05
Dossier created
2026-10-05
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

Second dated counterweight: close to 118 mm across the AMBA, with 155 mm in Villa Devoto and 114 mm in Villa Santa Rita, flooded neighbourhoods and cut streets. Surfaced via search; page not fetched.

Descriptive only — not page/paragraph exact
Claims linked
Background source; no baseline claim points here
World Bank — Flood Risk Management Support Project for the City of Buenos Aires, 22 June 2016 projects.worldbank.org · background

Open original source ↗

Stable source ID
src-aa94a120ff3bca58
Publisher
Name not classified · projects.worldbank.org
Type / language
web-page · language not classified
Published
2016-06-22
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-10-05
Dossier created
2026-10-05
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

The follow-on loan (P145686), which moved to the Vega basin — the basin where the city's 2013 deaths occurred and which the Maldonado tunnels do not serve. Cited only for the existence and date of the successor project, not for any Maldonado figure.

Descriptive only — not page/paragraph exact
Claims linked
Background source; no baseline claim points here
Infobae — eight dead in the city, 2 April 2013 infobae.com · background

Open original source ↗

Stable source ID
src-c774c32420f14191
Publisher
Name not classified · infobae.com
Type / language
web-page · language not classified
Published
2013-04-02
Updated
Not recorded
Source last checked
No source-level check date
Record last verified
2026-10-05
Dossier created
2026-10-05
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

Contemporaneous reporting put the toll inside the Autonomous City at six to eight, in Saavedra, Colegiales, Villa Luro, Villa Ortúzar and Villa Urquiza — neighbourhoods largely in the Vega basin, not the Maldonado. Surfaced via search; page not fetched, and the exact final city figure varies between outlets, so the entry gives no number.

Descriptive only — not page/paragraph exact
Claims linked
Background source; no baseline claim points here
La Nación — courts ratify 89 deaths in La Plata lanacion.com.ar · background

Open original source ↗

Stable source ID
src-701ecded1a2c21ff
Publisher
Name not classified · lanacion.com.ar
Type / language
web-page · language not classified
Published
2014-07-04
Updated
2022-02-15
Source last checked
No source-level check date
Record last verified
2026-10-05
Dossier created
2026-10-05
Retrieved copy
No local capture recorded
Archive
No archived copy linked
Content hash
No captured content hash
Locator
Open the recorded source note

Cited only to keep the tolls apart: the 89 judicially confirmed deaths of 2-3 April 2013 belong to La Plata, a different city roughly 60 km away, and are routinely merged with Buenos Aires figures in coverage. They are not attributed to this entry.

Descriptive only — not page/paragraph exact
Claims linked
Background source; no baseline claim points here
Known limits of this file
  • Publisher names and source languages have not yet been classified; domains are recorded without guessing.
  • Existing source notes are descriptive locators, not page- or paragraph-exact citations.
  • A missing archive, publication date or content hash is shown as null rather than inferred.
  • The project-level evidence grade ranks the strongest source in the entry; it is not a truth score for every claim.