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 23HL0012 and 22HL0036 have near-identical descriptions about 315 m apart (funding years 2022, 2023; ₱44.10M, ₱45.93M). Worth checking whether they cover the same works. It is possible that the construction followed the rehabilitation as a continuation or upgrade of the same river control structure.

Public record entityRehabilitation of Manalongon River Control, Upstream A, Sta. Catalina, Negros Oriental

LocationSANTA CATALINA (NEGROS ORIENTAL), NEGROS ORIENTAL, Region VIIContract 22HL0036

Amount₱45,927,700.00 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 mLocation approximate

Before capture: 2019-01-17 · Maxar

After capture: 2019-01-17 · Vantor

No imagery since construction began — latest capture 2019-01-17

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 titles are near-identical, both refer to 'Manalongon River Control, Upstream A, Sta. Catalina, Negros Oriental', and there are no distinguishing markers such as different phases, sections, or locations. The only difference is 'Construction' vs 'Rehabilitation', which does not clearly indicate different works, especially since both are at the same site and funded in consecutive years. Innocent explanations (e.g., a new structure after a failed rehabilitation, or a continuation/upgrade) are plausible but do not negate the anomaly.

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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 Manalongon River Control, Upstream A, Sta. Catalina, Negros Oriental22HL0036Flood control	100%	December 27, 2022	December 27, 2022	—	completedsumbong source

Start: February 17, 2022 · 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": "22HL0036",
  "coordinates": {
    "lat": 9.22222,
    "lon": 122.88444
  },
  "municipality": "SANTA CATALINA (NEGROS ORIENTAL)",
  "distanceMeters": 315.17319800969796,
  "titleSimilarity": 0.9069767441860465
}

Source documents

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