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 23OF0036 and 24OF0126 have near-identical descriptions about 478 m apart (funding years 2023, 2024; ₱42.76M, ₱95.34M). Worth checking whether they cover the same works. These may be different types of flood mitigation structures or cover different segments along the river.

Public record entityConstruction of Flood Control Structure along Marikina River, Barangay Bagong Silangan, Quezon City

LocationQUEZON CITY (METROPOLITAN MANILA), QUEZON CITY, National Capital RegionContract 24OF0126

Amount₱95,341,600.18 sumbong source

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

Satellite before / after

Esri Wayback · ~0.5 m

Before capture: 2019-10-13 · 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 0.95

Model: gpt-4.1

Prompt: v4.1

Checked: October 22, 2026

The titles are near-identical, both refer to construction along the Marikina River in Barangay Bagong Silangan, Quezon City, and there are no distinguishing markers such as phase, package, section, or different sites. The only differences are 'Slope Protection' vs 'Flood Control', which are not sufficient to distinguish them as separate works, especially since both are flood mitigation structures. The projects are about 478 meters apart, which is above the 100m threshold, but the rule is for near-duplicate titles within the same municipality, and the code has already flagged this as a potential anomaly. Innocent explanation is plausible (e.g., different segments or types of structures), but the pattern is worth showing.

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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
Construction of Flood Control Structure along Marikina River, Barangay Bagong Silangan, Quezon City24OF0126	100%	March 12, 2025	March 11, 2025	—	completedsumbong source

Start: March 18, 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": "24OF0126",
  "coordinates": {
    "lat": 14.693778,
    "lon": 121.11108
  },
  "municipality": "QUEZON CITY (METROPOLITAN MANILA)",
  "distanceMeters": 477.7084125889881,
  "titleSimilarity": 0.9054726368159204
}

Source documents

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