# Tainan transportation and flood management infrastructure

> Live situation record from CLSTR: https://clstr.news/situations/tainan-transportation-and-flood-management-infrastructure
> Updated: 2026-09-24T13:11:01.000Z. Sources: 7. Developments: 3.

Tainan is progressing with major transportation infrastructure, though recent heavy rainfall has highlighted drainage vulnerabilities. Flooding in the West Central and North districts has been linked to the railway undergrounding project, as the conversion of drainage paths into culverts caused water to back up in Changsheng and Kaiyuan villages. The Tainan Water Resources Bureau acknowledged these altered routes, prompting a proposed 360 million TWD improvement plan to install side-trench box culverts to redirect runoff toward Chaitougang Creek. This has sparked debate regarding whether existing flood control subsidies and infrastructure have been effectively utilized given the high levels of central government funding Tainan has received.

Regarding the railway undergrounding project, construction has reached approximately 85.7% completion. The 8.23-kilometer project, which aims to eliminate 23 railway-road intersections, is scheduled to begin operations on the morning of October 18. To mark the milestone, the city government is organizing commemorative events, including heritage walks and musical performances. The project will integrate the new underground station with the historic Tainan Railway Station, which is being restored to serve as a primary entrance.

Parallel to these developments, Mayor Huang Wei-che has activated the ‘Tainan City Advanced Transportation System Phase I Blue Line Project Agency Procurement Integrity Platform.’ This initiative utilizes cross-agency cooperation between judicial, audit, and engineering sectors to ensure transparency and mitigate risks during the procurement of the 32.731 billion TWD MRT Blue Line project.

## Timeline

### 2026-09-24: Tainan railway undergrounding project set to open October 18

Tainan's 8.23km railway undergrounding project is set to open on October 18, eliminating 23 level crossings and triggering a series of city-wide celebratory events.

3 sources. https://clstr.news/cluster/tainan-railway-undergrounding-project-set-to-open-october-18

### 2026-08-27: Tainan advances MRT Blue Line integrity platform and railway undergrounding

Tainan is launching an anti-corruption platform for its new MRT Blue Line and reports that its railway undergrounding project may open its first phase as early as mid-October.

2 sources. https://clstr.news/cluster/tainan-advances-mrt-blue-line-integrity-platform-and-railway-undergrounding

### 2026-08-27: Tainan flooding linked to railway undergrounding and drainage issues

Tainan faces recurring flooding linked to railway undergrounding projects and outdated drainage planning, sparking debates over the effectiveness of the city's significant flood control budget.

3 sources. https://clstr.news/cluster/tainan-flooding-linked-to-railway-undergrounding-and-drainage-issues

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Cite as: Tainan transportation and flood management infrastructure. CLSTR, https://clstr.news/situations/tainan-transportation-and-flood-management-infrastructure