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. It is possible that the second project is a continuation or expansion of the first, or covers a different type of flood mitigation structure at a nearby location.

Public record entityConstruction of Slope Protection Structure along Marikina River, Barangay Bagong Silangan, Quezon City

LocationQUEZON CITY (METROPOLITAN MANILA), QUEZON CITY, National Capital RegionContract 23OF0036

Amount₱42,762,228.48 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

Click imagery to enlarge

Loading satellite imagery…

How this was checked

publish · confidence 0.95

Model: gpt-4.1

Prompt: v4.1

Checked: October 22, 2026

The two project titles are near-identical, both refer to construction along the Marikina River in Barangay Bagong Silangan, Quezon City, and are about 478 meters apart. There are no distinguishing markers such as phase, package, section, or different sites. The only differences in the titles are 'Slope Protection' vs 'Flood Control', which are not sufficient to establish they are distinct works, as both could refer to similar or overlapping flood mitigation structures. The evidence is complete and meets the rule's criteria.

Full AI audit log →

View project record

Submit evidence about this

Named in this indicator? Respond or report an error · Corrections policy

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 Slope Protection Structure along Marikina River, Barangay Bagong Silangan, Quezon City23OF0036Flood control	100%	December 10, 2023	March 31, 2024	No target date from DPWH, so lateness cannot be computed	completedsumbong source

Start: February 14, 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": "23OF0036",
  "coordinates": {
    "lat": 14.689484,
    "lon": 121.11094
  },
  "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

Satellite before / after

Project completion

Rule Definition

Triggering Data & citations

Where this project sits