Construction of Retarding Basin24OE0171

Construction of Retarding Basin along Estero de Valencia, Manila City (Phase VIII)

Construction of Retarding Basin along Estero de Valencia, Manila City (Phase VIII) is a DPWH-tracked public work in CITY OF MANILA (METROPOLITAN MANILA), CITY OF MANILA, National Capital Region. Reported contract value: ₱48,803,086.90. Status: Reported complete (DPWH). Contractor on record: ALPHA & OMEGA GEN CONTRACTOR & DEVELOPMENT CORP / MANGEN TECHNO-BUILDERS INC. Figures trace to sumbong.

CITY OF MANILA (METROPOLITAN MANILA), CITY OF MANILA, National Capital Region

Region: National Capital Region

Esri Wayback · ~0.46 m

Before capture: 2023-07-06 · Maxar

After capture: 2025-04-25 · Maxar

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

₱48,803,086.90

Progress100%

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

Money Trail

1. Appropriation

Probable match · score 90%

UACS: 18001
Amount: ₱12,000,000.00 (GAA By-Object, amounts in ₱'000 × 1,000)
Program / description: Construction of Flood Mitigation Structure along Estero de Binondo, Barangay 281, Manila City
GAA fiscal year: FY2024

DBM GAA source document

2. Allotment

Office-level release, not tied to this specific contract

SARO SARO-NCR-24-0002185

₱40,000,000.00 · FY2024

DBM SARO listing (source)

Office-level release, not tied to this specific contract

SARO SARO-NCR-24-0008748

₱1,545,000.00 · FY2024

DBM SARO listing (source)

Office-level release, not tied to this specific contract

SARO SARO-NCR-24-0008763

₱142,000.00 · FY2024

DBM SARO listing (source)

3. Procurement & Award

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

Contractor

ALPHA & OMEGA GEN CONTRACTOR & DEVELOPMENT CORP / MANGEN TECHNO-BUILDERS INC

Not graded

1 projects · ₱48.8M total · 0 flags

4. Implementation

Contract Amount

₱48,803,086.90

Progress

Reported complete (DPWH)

Start Date

February 12, 2024

Target End

December 21, 2024

5. Audit

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