Construction of Flood Mitigation Structure23E00128

Construction of Flood Control Structure along Libtangin River, Barangay Mangiliol Section, Gasan, Marinduque

Construction of Flood Control Structure along Libtangin River, Barangay Mangiliol Section, Gasan, Marinduque is a DPWH-tracked public work in GASAN (MARINDUQUE), MARINDUQUE, Region IV-B. Reported contract value: ₱241,248,643.70. Status: Reported complete (DPWH). Contractor on record: HGG BUILDERS & SUPPLY. Figures trace to sumbong.

GASAN (MARINDUQUE), MARINDUQUE, Region IV-B

Region: Region IV-B

Esri Wayback · ~0.5 mLocation approximate

Before capture: 2015-09-25 · Maxar

After capture: 2015-09-25 · Vantor

No imagery since construction began — latest capture 2015-09-25

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

₱241,248,643.70

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. Links are automated matches unless marked confirmed.

1. GAA budget line
FY2023 · ₱50,000
Probable match · score 0.93
DBM GAA source ↗
2. SARO / NCA release
No SARO/NCA found for this office and year. DBM publishes releases by agency and office, rarely by project.
3. PhilGEPS award
Not found in PhilGEPS by contract ID 23E00128 or title. The open PhilGEPS mirror does not include every DPWH notice.
4. DPWH progress + satellite
100% reported · imagery 2022-05-12 → 2024-02-26
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

Outside mapped flood-hazard zones · Marinduque

Based on the coordinates published with the DPWH record and NOAH file Marinduque.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 93%

UACS: 18001
Amount: ₱50,000,000.00 (GAA By-Object, amounts in ₱'000 × 1,000)
Program / description: Construction of Flood Control Structure along Boac River, Barangay Balimbing, Boac, Marinduque
GAA fiscal year: FY2023

DBM GAA source document

2. Allotment

Agency-level releases for FY2023, not tied to this contract

Marinduque District Engineering Office · SARO 16 (₱22,616,681,592.00) · NCA 0 (₱0.00)

Top SAROs
SARO SARO-BMB-A-23-0024206 · ₱22,279,640,000.00 · Source document
SARO SARO-BMB-A-23-0024467 · ₱310,000,000.00 · Source document
SARO SARO-BMB-A-23-0022993 · ₱22,716,000.00 · Source document
SARO SARO-ROVII-23-0020381 · ₱627,189.00 · Source document
SARO SARO-ROV-23-0023529 · ₱617,483.00 · Source document

3. Procurement & Award

No PhilGEPS award linked in the link table for this contract yet.

Contractor

HGG BUILDERS & SUPPLY

41 projects · ₱5.5B total · 27 flags

Other projects by this contractor

No sat.

OO 2: PROTECT LIVES AND PROPERTIES AGAINST MAJOR FLOODS, FLOOD MGMT. PROG., CONST./ REHAB. OF FLOOD MITIGATION FACILITIES WITHIN MAJOR RIVER BASINS AND PRINCIPAL RIVERS, CONST. OF LOBOC RIVER CONTROL STRUCTURE, POBLACION ONDOL, RIGHT SIDE, LOBOC, BOHOL

Region VII, Region VII

2024₱241.2M

Past target date (DPWH On-Going)

Construction of Sta Cruz Seawall, Barangay Tagum - Barangay Morales Section, Sta Cruz, Marinduque

SANTA CRUZ (MARINDUQUE), MARINDUQUE, Region IV-B

2023₱241.2M

Reported complete (DPWH)

Construction of Sta Cruz Seawall, Barangay Morales Section, Sta Cruz, Marinduque

SANTA CRUZ (MARINDUQUE), MARINDUQUE, Region IV-B

2023₱241.2M

Reported complete (DPWH)

Construction of Torrijos Seawall, Barangay Marlangga Section, Torrijos, Marinduque

TORRIJOS (MARINDUQUE), MARINDUQUE, Region IV-B

2023₱241.2M

Reported complete (DPWH)

Construction of Torrijos Seawall, Barangay Poblacion Section, Torrijos, Marinduque

TORRIJOS (MARINDUQUE), MARINDUQUE, Region IV-B

2023₱241.2M

Reported complete (DPWH)

No sat.

ORGANIZATIONAL OUTCOME 2: PROTECT LIVES AND PROPERTIES AGAINST MAJOR FLOODS-FLOOD MANAGEMENT PROGRAM-CONSTRUCTION/MAINTENANCE OF FLOOD MITIGATION STRUCTURES AND DRAINAGE SYSTEMS-CONSTRUCTION OF FLOOD MITIGATION STRUCTURE, TALISAY RIVER, PACKAGE 2, BARANGA

Region V, Region V

2025₱237.4M

Past target date (DPWH On-Going)

View all 41 projects →

4. Implementation

Contract Amount

₱241,248,643.70

Progress

Reported complete (DPWH)

Start Date

April 13, 2023

Target End

April 6, 2024

5. Audit

No COA audit observations linked to this project yet. See COA AAR sources.

Construction of Flood Control Structure along Libtangin River, Barangay Mangiliol Section, Gasan, Marinduque

Follow the peso

Money Trail

1. Appropriation

2. Allotment

3. Procurement & Award

Other projects by this contractor

4. Implementation

5. Audit

Hazard context

Where this project sits

Hazard context