Construction of Flood Mitigation Structure22OE0013

Construction of Retarding Basin at Estero dela Reina, (Phase II), Manila City

Construction of Retarding Basin at Estero dela Reina, (Phase II), Manila City is a DPWH-tracked public work in CITY OF MANILA (METROPOLITAN MANILA), CITY OF MANILA, National Capital Region. Reported contract value: ₱48,192,506.57. Status: Reported complete (DPWH). Contractor on record: ALPHA & OMEGA GEN CONTRACTOR & DEVELOPMENT CORP. Figures trace to sumbong.

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

Region: National Capital Region

Esri Wayback · ~0.5 mLocation approximate

Before capture: 2021-11-03 · 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

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Total Contract Cost

₱48,192,506.57

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
FY2022 · ₱10,000
Probable match · score 0.86
DBM GAA source ↗
2. SARO / NCA release
SARO SARO-BMB-A-22-0002993 · ₱593,500,000
Possible match · score 0.60
DBM release source ↗
3. PhilGEPS award
Not found in PhilGEPS by contract ID 22OE0013 or title. The open PhilGEPS mirror does not include every DPWH notice.
4. DPWH progress + satellite
100% reported · imagery 2021-11-03 → 2025-04-25
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

High flood hazard · NCR, City of Manila, First District

Based on the coordinates published with the DPWH record and NOAH file Metro Manila.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 86%

UACS: 18001
Amount: ₱10,000,000.00 (GAA By-Object, amounts in ₱'000 × 1,000)
Program / description: Rehabilitation of Flood Control Structures and Facilities along Earnshaw St., (Estero de San Miguel to A.H. Lacson Ave.) and Antipolo St., (G. Tuazon to Espana Blvd.), Manila City
GAA fiscal year: FY2022

DBM GAA source document

2. Allotment

Office-level release, not tied to this specific contract

SARO SARO-BMB-A-22-0002993

₱593,500,000.00 · FY2022

DBM SARO listing (source)

Office-level release, not tied to this specific contract

SARO SARO-BMB-A-22-0003032

₱339,314,000.00 · FY2022

DBM SARO listing (source)

Office-level release, not tied to this specific contract

SARO SARO-NCR-22-0000888

₱435,026.00 · FY2022

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

141 projects · ₱11.1B total · 23 flags

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No sat.

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No sat.

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