Indicator C5 — Pattern Consistent with Contract Splitting

AI-verified / Na-verify ng AI Data as of October 21, 2026

Pattern Consistent with Contract Splitting

Multiple similar contracts to the same contractor/DEO just under a threshold in a short window.

This is a statistical anomaly or indicator worth examining — not proof of wrongdoing, fraud, or corruption against any person.

Indicator: 4 contracts awarded to ROTAFLEX CONST AND DEVELOPMENT CORP FORMERLY:ROTA FLEX CONST by the same office started within 9 days, each between ₱42.5M and ₱50M (just under the ₱50M threshold), with 4 in the same municipality. It is common for large riverwall or flood mitigation projects to be split into phases or cover multiple sites within a city for logistical or budgetary reasons.

Public record entityConstruction of Flood Mitigation Structure, Dampalit Riverwall (Phase 8), Barangay Dampalit, Malabon City

LocationCITY OF MALABON (METROPOLITAN MANILA), MALABON CITY, National Capital RegionContract 24OA0033

Amount₱48,998,274.82 sumbong source

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

Satellite before / after

Esri Wayback · ~0.31 mLocation approximate

Before capture: 2023-03-06 · 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

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How this was checked

publish · confidence 0.98

Model: gpt-4.1

Prompt: v4

Checked: October 22, 2026

This is a textbook C5 indicator: four contracts, all just under the ₱50M threshold, awarded to the same contractor by the same DEO, started within 9 days, and all in the same municipality. The titles show two sites (Dampalit and Muzon), each with two phases, which is expected for C5 (the rule is about clusters in one municipality, not duplicate works). The evidence is complete and the public can check all records.

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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, Dampalit Riverwall (Phase 8), Barangay Dampalit, Malabon City24OA0033Flood control	100%	October 8, 2024	October 8, 2024	No target date from DPWH, so lateness cannot be computed	completedsumbong source

Start: February 12, 2024 · Source fetched October 21, 2026

Rule Definition

≥3 contracts within 120 days, each 85–100% of ₱50M threshold, similar titles.

Triggering Data & citations

Cluster of contracts just under procurement threshold with similar scope

{
  "deo": "Malabon-Navotas District Engineering Office",
  "contractId": "24OA0033",
  "contractor": "ROTAFLEX CONST AND DEVELOPMENT CORP FORMERLY:ROTA FLEX CONST",
  "windowDays": 120,
  "clusterSize": 4,
  "thresholdPhp": 50000000,
  "contractCostPhp": 48998274.82,
  "averageTitleSimilarity": 0.8750888580534641
}

Source documents

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

Possible Innocent Explanations

Legitimate multi-lot procurement
Different sites under same program

Satellite before / after

Project completion

Rule Definition

Triggering Data & citations

Possible Innocent Explanations

Where this project sits