Indicator C3 — Duplicate or Near-Duplicate Projects

AI-verified / Na-verify ng AI Data as of October 21, 2026

Duplicate or Near-Duplicate Projects

Very similar descriptions within ~100m or identical coordinates across contracts/years.

This is a statistical anomaly or indicator worth examining — not proof of wrongdoing, fraud, or corruption against any person.

Indicator: contracts 24OE0116 and 22OE0030 have near-identical descriptions about 525 m apart (funding years 2022, 2024; ₱29.09M, ₱49.00M). Worth checking whether they cover the same works. It is possible that the second contract is a continuation or additional phase of the same drainage system project.

Public record entityRehabilitation of Drainage System at Zone 41-57 (Phase 3), Manila City

LocationCITY OF MANILA (METROPOLITAN MANILA), CITY OF MANILA, National Capital RegionContract 24OE0116

Amount₱29,086,241.46 sumbong source

Only contractors and government agencies named in public procurement records are shown. Private individuals are not named.

Satellite before / after

Esri Wayback · ~0.46 m

Before capture: 2023-07-06 · Maxar

After capture: 2025-04-25 · Vantor

Satellite comparison for public reference — not proof of completion or non-completion.

Imagery may not show small or linear works; no visible change is not evidence of wrongdoing.

Imagery © Esri, Maxar, Earthstar Geographics, and the GIS User Community

Caveats & resolution

Esri World Imagery Wayback (~0.5–1 m); dates are archive release dates, not capture timestamps.
Imagery may not show small or linear works; no visible change is not evidence of wrongdoing.
DPWH coordinates can be approximate; marker shows the imagery center (may be snapped to riverbank/coast).

Disclaimer

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How this was checked

publish · confidence 0.85

Model: gpt-4.1

Prompt: v4.1

Checked: October 22, 2026

The only distinguishing marker is 'Phase 3' in the 2024 project, while the 2022 project has no phase marker. Per rule guidance, if one title has a phase/package marker and the other has none, this is a classic 'unlabelled twin' scenario and should be published. The locations are close (525 m), and the titles are otherwise near-identical, both referring to the same zones in Manila City. All required records and fields are present.

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Project completion

Schedule fields from DPWH transparency portal records and the Sumbong sa Pangulo flood-control list — not inferred beyond those columns.

Reported complete (DPWH): 1Ongoing: 0Delayed: 0Status unknown: 0

Project	Prog.	Target end	Actual end	Days late	Status
Rehabilitation of Drainage System at Zone 41-57 (Phase 3), Manila City24OE0116	100%	March 6, 2025	February 10, 2025	—	completedsumbong source

Start: February 12, 2024 · Source fetched October 21, 2026

Rule Definition

Title similarity + distance or shared coordinates within municipality.

Triggering Data & citations

Similar project description near another contract in the same municipality

{
  "contractId": "24OE0116",
  "coordinates": {
    "lat": 14.60529,
    "lon": 120.99754
  },
  "municipality": "CITY OF MANILA (METROPOLITAN MANILA)",
  "distanceMeters": 524.6286251176845,
  "titleSimilarity": 0.967741935483871
}

Source documents

sumbong — https://raw.githubusercontent.com/rukku/sumbongsapangulo.ph-datasets/main/flood_control_projects.geojsonFetched October 21, 2026