Construction of Flood Mitigation Structure21II0022

Construction of Gamay Flood Control Structure and Drainage System, Gamay River Basin, Gamay, Northern Samar

Construction of Gamay Flood Control Structure and Drainage System, Gamay River Basin, Gamay, Northern Samar is a DPWH-tracked public work in NORTHERN SAMAR, Region VIII. Reported contract value: ₱47,299,306.00. Status: Reported complete (DPWH). Contractor on record: CDU CONST. Figures trace to sumbong.

NORTHERN SAMAR, Region VIII

Region: Region VIII

Esri Wayback · ~0.31 mLocation approximate

Before capture: 2020-01-02 · Maxar

After capture: 2020-01-02 · Vantor

No imagery since construction began — latest capture 2020-01-02

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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Total Contract Cost

₱47,299,306.00

Progress100%

Source: DPWH Transparency Portal (via BetterGov.PH mirror, snapshot 22 Jan 2026); Sumbong sa Pangulo flood-control list where applicable

Follow the peso

2 of 5 steps linked to this project, 1 at office level only. Links are automated matches unless marked confirmed.

1. GAA budget line
FY2021 · ₱50,000
Probable match · score 1.00
DBM GAA source ↗
2. SARO / NCA release
SARO SARO-BMB-A-21-0010157 · ₱33,000,000
Possible match · score 0.60
DBM release source ↗
3. PhilGEPS award
Not found in PhilGEPS by contract ID 21II0022 or title. The open PhilGEPS mirror does not include every DPWH notice.
4. DPWH progress + satellite
100% reported · imagery 2020-01-02 → 2020-01-02
Same record (DPWH contract ID)
DPWH Transparency Portal source ↗
5. COA audit finding
No COA finding names this project. COA audits DPWH by office each year; project-level findings are only linked when the report names the contract.

Site vs flood hazard · Project NOAH 100-year map

Medium flood hazard · Northern Samar

Based on the coordinates published with the DPWH record and NOAH file NorthernSamar.zip. Pins are sometimes placed at the town center rather than the site. NOAH data (ODbL) · Need vs spending by province

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Money Trail

1. Appropriation

Probable match · score 100%

UACS: 18001
Amount: ₱50,000,000.00 (GAA By-Object, amounts in ₱'000 × 1,000)
Program / description: Construction of Gamay Flood Control Structure and Drainage System, Gamay River Basin, Gamay, Northern Samar
GAA fiscal year: FY2021

DBM GAA source document