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 22GB0009 and 22GB0035 have near-identical descriptions at the same coordinates (funding year 2022; ₱34.57M, ₱39.20M). Worth checking whether they cover the same works. One project may be for new construction and the other for rehabilitation or extension of nearby structures.

Public record entityRehabilitation of Flood Control Project along Paliwan-Paningayan River, Brgy. Guinbanga-An, Laua-An, Antique

LocationLAUA-AN (ANTIQUE), ANTIQUE, Region VIContract 22GB0035

Amount₱39,200,000.00 sumbong source

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

Satellite before / after

Esri Wayback · ~0.5 mLocation approximate

Before capture: 2019-05-31 · Maxar

After capture: 2025-08-08 · 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

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How this was checked

publish · confidence 0.70

Model: gpt-4.1

Prompt: v4.1

Checked: October 22, 2026

The two projects have identical coordinates and near-identical titles, both in Barangay Guinbangaan, Laua-an, Antique, funded in the same year. The only differences in the titles are 'Construction' vs 'Rehabilitation', and 'Paliwan River' vs 'Paliwan-Paningayan River', but both refer to flood control works at the same barangay and river system. There are no phase, package, or section markers, and the barangay/place names are spelling variants. This fits the rule's guidance for publishing when one title is a subset or near-duplicate of the other at the same spot.

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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 Flood Control Project along Paliwan-Paningayan River, Brgy. Guinbanga-An, Laua-An, Antique22GB0035Flood control	100%	October 19, 2022	December 5, 2022	No target date from DPWH, so lateness cannot be computed	completedsumbong source

Start: February 7, 2022 · Source fetched October 21, 2026

Rule Definition

Title similarity + distance or shared coordinates within municipality.

Triggering Data & citations

Identical coordinates shared by multiple contracts

{
  "contractId": "22GB0035",
  "coordinates": {
    "lat": 11.074856,
    "lon": 122.05182
  },
  "otherContracts": [
    "22GB0009"
  ]
}

Source documents

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

Possible Innocent Explanations

Multi-component contracts sharing a single pin
GIS centroid placement

Satellite before / after

Project completion

Rule Definition

Triggering Data & citations

Possible Innocent Explanations

Where this project sits