Serang’s Bojonegara–Puloampel Corridor Puts Drainage and Road Widening Ahead of Industrial Expansion

SERANG, 20 September 2026 — In Serang Regency’s western industrial belt, the infrastructure question is no longer simply how to move more trucks. It is whether road expansion can be delivered with drainage and river management before additional industrial traffic increases the cost of recurring floods.

The clearest current plan is in Bojonegara, Puloampel and Kramatwatu, where Banten Governor Andra Soni said on 6 August that the provincial government would coordinate a new arrangement for the industrial zone with the regency and central government. The stated package includes road and drainage construction, air-quality improvement, health and education services, economic development, greening and marine-ecosystem protection.

That list matters because the three districts combine large industrial operations with port access and densely used local roads. The provincial government said the first priority is widening roads and drainage to keep people, goods and industrial supplies moving and to reduce flooding that occurs almost every year.

A 10-kilometre design with a flood-control obligation

Provincial PUPR chief Arlan Marzan said a detailed engineering design and land acquisition were targeted for completion in December 2026. The first stage covers about 10 kilometres, from the Seruni three-way junction to Bojonegara Port. Because the route is classified as a national road, construction would be undertaken by the central government, while the local government is preparing the design and land process.

The design described by the province calls for a 25-metre road space, a median, shoulders and drainage. The province also said the widening would be concentrated on the right side of the route, citing a high-voltage transmission line and dense housing on the left and industrial-owned land on the right.

That sequencing should be watched closely by the Serang Regency DPRD. A wider carriageway without continuous outfalls, culverts and maintenance access could move congestion while leaving water trapped beside the road. The governor’s office said local residents had reported congestion lasting as long as 24 hours, while residents’ representatives separately described the existing drainage system as poor and linked it to annual flooding. Those are reported claims, not an independently measured traffic series, but they identify the pressure point that the project is intended to address.

Flood work already shows why one agency cannot solve it alone

The flood problem is not confined to the western port corridor. On 20 December 2025, the Cidanau-Ciujung-Cidurian River Basin authority, or BBWS C3, met with the governor, the Serang regency and Serang city governments to coordinate emergency work. The authority said it would deploy heavy equipment to affected locations to improve river flow and repair damaged embankments, with a plan to address flood-prone river sections in 2026.

BBWS C3 said flooding in the two Serang jurisdictions was not caused only by heavy rainfall. It also pointed to sedimentation and the narrowing of river channels associated with land-use change. The authority described Sindangheula Dam as safe at the time, although its water level was reported to be about 10–20 centimetres above the crest elevation.

In early 2026, the regency’s own emergency works illustrated the limits of piecemeal action. In Bumi Ciruas Permai 2, Desa Ranjeng, DPUPR said it was normalising one kilometre of drainage channels, two to three metres deep, toward the Ciwaka Timur River. Officials described the neighbourhood as low-lying — effectively a water-storage area — and said longer-term management would require continuing pumping and further study.

In Kibin, DPUPR used an excavator to normalise the Cikambuy River, a tributary of the Ciujung, after flooding in parts of Cijeruk and Nagara. The department attributed the overflow to sedimentation, narrowing and reduced channel capacity, while noting that the river is under BBWS C3 or central-government authority for follow-up work. Officials said daily progress could range from 50 to 100 metres depending on trees, sediment depth and other field obstacles.

Industrial growth raises the standard for public works

At a May Day event in Modern Cikande on 3 May 2026, Bupati Ratu Rachmatuzakiyah said she wanted investment in Serang to keep growing and create jobs. More than 5,000 workers attended the event, according to the regency government. Workers’ representatives also listed infrastructure repair among their three demands, alongside action against labour brokers and progress on a labour regulation.

Governor Andra said workers had complained about dark roads in industrial areas and on national, provincial and regency routes. The complaint expands the infrastructure agenda beyond asphalt: lighting, safe shoulders, drainage and reliable access are part of whether industrial growth benefits workers and surrounding communities.

What we know

The province’s latest western-zone plan covers Bojonegara, Puloampel and Kramatwatu and puts road widening and drainage first.
The first planned widening stage is about 10 kilometres from the Seruni junction to Bojonegara Port; the province said the design and land process were targeted for December 2026.
Regency emergency works in Ciruas and Kibin show that low elevation, sedimentation, narrowed channels and land-use change are material flood-management issues.
BBWS C3 has said river sections require coordinated treatment across government authorities, not isolated local works.
BMKG’s PIKACU portal reported that its event database was available through 19 September 2026, but the event view accessible for this review did not expose a complete Serang-specific 2026 flood count. This article therefore does not claim a new annual flood total.

For the DPRD, the practical oversight test is straightforward: require the road design, drainage discharge points, river interfaces, maintenance responsibility and land-acquisition timetable to be published together. Serang’s industrial expansion can improve access and jobs, but only infrastructure that moves both traffic and water will make that growth durable.