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 23OF0062 have near-identical descriptions about 258 m apart (funding year 2023; ₱42.76M, ₱96.50M). Worth checking whether they cover the same works. It is possible that these are adjacent or complementary structures serving different technical purposes along the same riverbank.

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

LocationQUEZON CITY (METROPOLITAN MANILA), QUEZON CITY, National Capital RegionContract 23OF0062

Amount₱96,499,629.50 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 mLocation approximate

Before capture: 2021-02-02 · 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 two project titles are near-identical, both referring to construction along the Marikina River in Barangay Bagong Silangan, Quezon City, with no distinguishing markers such as phase, package, section, or different locations. The only difference is 'Slope Protection Structure' versus 'Flood Mitigation Structure', which are often used interchangeably or as overlapping terms in public works. Both projects are in the same funding year, are about 258 meters apart, and have different contractors. There is enough information for public review.

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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 Mitigation Structure along Marikina River, Barangay Bagong Silangan, Quezon City23OF0062Flood control	100%	February 21, 2024	December 19, 2023	No target date from DPWH, so lateness cannot be computed	completedsumbong source

Start: February 27, 2023 · 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": "23OF0062",
  "coordinates": {
    "lat": 14.6918,
    "lon": 121.111
  },
  "municipality": "QUEZON CITY (METROPOLITAN MANILA)",
  "distanceMeters": 257.6083012176802,
  "titleSimilarity": 0.9215686274509803
}

Source documents

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

Satellite before / after

Project completion

Rule Definition

Triggering Data & citations

Where this project sits