{ "schemaVersion": "1.0.0", "constitutionVersion": "1.0.0", "createdAt": "2026-08-12T00:00:00Z", "description": "Append-only Evidence Passport records. Old revisions are immutable; corrections create a new revision and preserve the previous permalink.", "entity": { "type": "project", "id": "buenos-aires-flood-management", "title": "Arroyo Maldonado relief tunnels & Buenos Aires's storm alert network", "canonicalUrl": "https://1001smartcities.org/projects/buenos-aires-flood-management/" }, "currentRevisionId": "2026-08-20-source-dates", "revisions": [ { "id": "2026-08-20-source-dates", "createdAt": "2026-08-20T18:42:52Z", "effectiveAt": "2026-07-26", "changeType": "baseline", "summary": "Created the first structured Evidence Passport with 1 claim and 10 source dossiers.", "preparedBy": { "type": "automation", "label": "AI-assisted evidence preparation", "humanApproved": false }, "review": { "status": "unreviewed", "by": null, "date": null, "note": "Awaiting operator and domain-expert review; publication of this revision implies neither." }, "changes": [ { "operation": "add", "path": "/evidencePassport", "summary": "Added claim-level evidence mapping and source dossiers." }, { "operation": "add", "path": "/revisionHistory", "summary": "Established a permanent, hash-addressed baseline revision." } ], "snapshotHash": "sha256:5730834229c4001dbfa806675e9f5a73399f7ed35f01979a4bb6fd20212c765b", "snapshot": { "asOf": "2026-07-26", "projectFingerprint": "sha256:3877a2b980d6fe134c2d932777bc67a3ab56c87b400f3f54aba21afdac6a81ea", "assurance": { "status": "unreviewed", "scope": "evidence-passport-revision", "statement": "AI-assisted structural preparation. This revision has not been reviewed by a human or subject-matter expert.", "machineChecks": [ "schema", "publication-diff-contract", "material-project-fingerprint", "claim-text-drift", "source-reference-resolution", "complete-source-dossier", "snapshot-hash" ] }, "projectState": { "status": "live", "outcome": "scaled-back", "evidenceGrade": "independent", "timeline": { "started": 2005, "ended": null } }, "governance": { "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", "actorTypes": [ "city-government" ], "fundingModel": "mixed", "fundingDescription": "World Bank IBRD loan of US$134.01M plus City of Buenos Aires counterpart funds", "cost": "≈US$193M actual (appraisal US$189M)", "ownership": null, "decisionRights": null, "exitConditions": null }, "claims": [ { "id": "clm-7db4e414c477082a", "field": "impact", "text": "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", "statementKind": "quantitative", "textMode": "verbatim-from-project-record", "mappingStatus": "mapped", "sourceRefs": [ "src-3d60bcaca9a45cca" ], "supportNote": "The impact attributes the design standard and beneficiary count to the World Bank ICR.", "caveat": "The Bank's Independent Evaluation Group rated the project's outcome Moderately Unsatisfactory, with the secondary drainage network under way in only 2 of 6 planned areas at closing.", "interpretation": { "added": false, "interpolation": false, "note": "The passport copies the published claim and its recorded source mapping without adding a conclusion." } } ], "sources": [ { "id": "src-612738650401aac4", "title": "World Bank — IEG ICR Review, Urban Flood Prevention and Drainage (P088220)", "url": "https://documents1.worldbank.org/curated/en/500821468186251724/txt/ICRR14624-P088220-Box393183B-PUBLIC.txt", "publisher": { "name": null, "domain": "documents1.worldbank.org", "classification": "not-classified" }, "sourceType": "web-page", "language": "und", "role": "background", "claimRefs": [], "temporal": { "publishedAt": "2015-04-13", "updatedAt": null, "sourceCheckedAt": null, "recordLastVerifiedAt": "2026-07-26", "dossierCreatedAt": "2026-08-20", "retrievedAt": null, "status": "publication-and-record-dates-recorded" }, "locator": { "type": "descriptive-source-note", "value": "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.", "exact": false }, "preservation": { "archiveUrl": null, "archivedAt": null, "contentHash": null, "status": "not-captured" } }, { "id": "src-3d60bcaca9a45cca", "title": "World Bank — Implementation Completion and Results Report, ICR2686", "url": "https://documents1.worldbank.org/curated/en/899301468199157695/txt/ICR26860ICR0Ar0m00PUBLIC0Box379845B.txt", "publisher": { "name": null, "domain": "documents1.worldbank.org", "classification": "not-classified" }, "sourceType": "web-page", "language": "und", "role": "claim-evidence", "claimRefs": [ "clm-7db4e414c477082a" ], "temporal": { "publishedAt": "2012-11-28", "updatedAt": null, "sourceCheckedAt": null, "recordLastVerifiedAt": "2026-07-26", "dossierCreatedAt": "2026-08-20", "retrievedAt": null, "status": "publication-and-record-dates-recorded" }, "locator": { "type": "descriptive-source-note", "value": "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.", "exact": false }, "preservation": { "archiveUrl": null, "archivedAt": null, "contentHash": null, "status": "not-captured" } }, { "id": "src-89defab6e6a67f4c", "title": "Gobierno de la Ciudad de Buenos Aires — Sistema de Alerta de Tormentas", "url": "https://buenosaires.gob.ar/desarrollourbano/desarrollo/programas-y-acciones/sistema-hidrometeorologico-de-observacion-vigilancia-y-alerta", "publisher": { "name": null, "domain": "buenosaires.gob.ar", "classification": "not-classified" }, "sourceType": "web-page", "language": "und", "role": "background", "claimRefs": [], "temporal": { "publishedAt": null, "updatedAt": null, "sourceCheckedAt": null, "recordLastVerifiedAt": "2026-07-26", "dossierCreatedAt": "2026-08-20", "retrievedAt": null, "status": "record-date-only" }, "locator": { "type": "descriptive-source-note", "value": "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.", "exact": false }, "preservation": { "archiveUrl": null, "archivedAt": null, "contentHash": null, "status": "not-captured" } }, { "id": "src-63a6bc265f8902a2", "title": "Gobierno de la Ciudad de Buenos Aires — Red hidrométrica", "url": "https://buenosaires.gob.ar/pluviales/red-hidrometrica", "publisher": { "name": null, "domain": "buenosaires.gob.ar", "classification": "not-classified" }, "sourceType": "web-page", "language": "und", "role": "background", "claimRefs": [], "temporal": { "publishedAt": null, "updatedAt": null, "sourceCheckedAt": null, "recordLastVerifiedAt": "2026-07-26", "dossierCreatedAt": "2026-08-20", "retrievedAt": null, "status": "record-date-only" }, "locator": { "type": "descriptive-source-note", "value": "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.", "exact": false }, "preservation": { "archiveUrl": null, "archivedAt": null, "contentHash": null, "status": "not-captured" } }, { "id": "src-f22896dd44b4e26a", "title": "Infobae — inside the Maldonado conduits, 2 July 2024", "url": "https://www.infobae.com/sociedad/2024/07/02/viaje-a-las-misteriosas-aguas-subterraneas-de-buenos-aires-como-es-el-operativo-para-limpiar-el-arroyo-maldonado/", "publisher": { "name": null, "domain": "infobae.com", "classification": "not-classified" }, "sourceType": "web-page", "language": "und", "role": "background", "claimRefs": [], "temporal": { "publishedAt": "2024-07-02", "updatedAt": null, "sourceCheckedAt": null, "recordLastVerifiedAt": "2026-07-26", "dossierCreatedAt": "2026-08-20", "retrievedAt": null, "status": "publication-and-record-dates-recorded" }, "locator": { "type": "descriptive-source-note", "value": "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.", "exact": false }, "preservation": { "archiveUrl": null, "archivedAt": null, "contentHash": null, "status": "not-captured" } }, { "id": "src-5b02ef8a3518cd64", "title": "La Nación — flooding in the city, 8 February 2024", "url": "https://www.lanacion.com.ar/sociedad/diluvia-en-la-ciudad-no-funcionan-tres-lineas-de-subtes-y-hay-calles-y-negocios-inundados-nid08022024/", "publisher": { "name": null, "domain": "lanacion.com.ar", "classification": "not-classified" }, "sourceType": "web-page", "language": "und", "role": "background", "claimRefs": [], "temporal": { "publishedAt": "2024-02-08", "updatedAt": "2024-02-09", "sourceCheckedAt": null, "recordLastVerifiedAt": "2026-07-26", "dossierCreatedAt": "2026-08-20", "retrievedAt": null, "status": "publication-and-record-dates-recorded" }, "locator": { "type": "descriptive-source-note", "value": "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.", "exact": false }, "preservation": { "archiveUrl": null, "archivedAt": null, "contentHash": null, "status": "not-captured" } }, { "id": "src-d12d2fd7ea930f0c", "title": "Infobae — storm across the AMBA, 25 October 2025", "url": "https://www.infobae.com/sociedad/2025/10/25/diluvio-en-el-amba-cayeron-mas-de-100-milimetros-y-hay-inundaciones-calles-cortadas-y-barrios-anegados/", "publisher": { "name": null, "domain": "infobae.com", "classification": "not-classified" }, "sourceType": "web-page", "language": "und", "role": "background", "claimRefs": [], "temporal": { "publishedAt": "2025-10-25", "updatedAt": null, "sourceCheckedAt": null, "recordLastVerifiedAt": "2026-07-26", "dossierCreatedAt": "2026-08-20", "retrievedAt": null, "status": "publication-and-record-dates-recorded" }, "locator": { "type": "descriptive-source-note", "value": "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.", "exact": false }, "preservation": { "archiveUrl": null, "archivedAt": null, "contentHash": null, "status": "not-captured" } }, { "id": "src-a492e52722648571", "title": "World Bank — Flood Risk Management Support Project for the City of Buenos Aires, 22 June 2016", "url": "https://www.worldbank.org/en/news/press-release/2016/06/22/mayor-proteccion-contra-inundaciones-tres-millones-argentinos-banco-mundial", "publisher": { "name": null, "domain": "worldbank.org", "classification": "not-classified" }, "sourceType": "web-page", "language": "und", "role": "background", "claimRefs": [], "temporal": { "publishedAt": "2016-06-22", "updatedAt": null, "sourceCheckedAt": null, "recordLastVerifiedAt": "2026-07-26", "dossierCreatedAt": "2026-08-20", "retrievedAt": null, "status": "publication-and-record-dates-recorded" }, "locator": { "type": "descriptive-source-note", "value": "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.", "exact": false }, "preservation": { "archiveUrl": null, "archivedAt": null, "contentHash": null, "status": "not-captured" } }, { "id": "src-c774c32420f14191", "title": "Infobae — eight dead in the city, 2 April 2013", "url": "https://www.infobae.com/2013/04/02/1069068-tragico-temporal-buenos-aires-ocho-muertos/", "publisher": { "name": null, "domain": "infobae.com", "classification": "not-classified" }, "sourceType": "web-page", "language": "und", "role": "background", "claimRefs": [], "temporal": { "publishedAt": "2013-04-02", "updatedAt": null, "sourceCheckedAt": null, "recordLastVerifiedAt": "2026-07-26", "dossierCreatedAt": "2026-08-20", "retrievedAt": null, "status": "publication-and-record-dates-recorded" }, "locator": { "type": "descriptive-source-note", "value": "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.", "exact": false }, "preservation": { "archiveUrl": null, "archivedAt": null, "contentHash": null, "status": "not-captured" } }, { "id": "src-701ecded1a2c21ff", "title": "La Nación — courts ratify 89 deaths in La Plata", "url": "https://www.lanacion.com.ar/buenos-aires/la-justicia-ratifico-que-por-el-temporal-de-2013-en-la-plata-murieron-89-personas-nid1707127/", "publisher": { "name": null, "domain": "lanacion.com.ar", "classification": "not-classified" }, "sourceType": "web-page", "language": "und", "role": "background", "claimRefs": [], "temporal": { "publishedAt": "2014-07-04", "updatedAt": "2022-02-15", "sourceCheckedAt": null, "recordLastVerifiedAt": "2026-07-26", "dossierCreatedAt": "2026-08-20", "retrievedAt": null, "status": "publication-and-record-dates-recorded" }, "locator": { "type": "descriptive-source-note", "value": "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.", "exact": false }, "preservation": { "archiveUrl": null, "archivedAt": null, "contentHash": null, "status": "not-captured" } } ], "coverage": { "claimsTotal": 1, "claimsMapped": 1, "sourcesTotal": 10, "sourcesUsedByClaims": 1, "sourcesWithPublicationDate": 8, "sourcesWithArchive": 0, "sourcesWithExactLocator": 0, "sourcesWithContentHash": 0 }, "limits": [ "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." ] } } ] }