Klong 4 Project

Reinforced pressure main along Khlong Luang Road (Pat. 3214) from Thammasat University to Khlong Si distribution station, Kanchanaphisek Road (Highway 9), PWA Khlong Luang branch

฿363M

Project value

—

Treatment capacity

9,723 m

Pipe transmission

1,200 mm

Largest pipe

the challenge

Works ran through dense communities and a busy highway, requiring constant traffic-plan adjustments. DI pipe — new to the company — was used for jacking, so methods had to be studied carefully before each drive.

what we delivered

A transmission main from Thammasat Rangsit to Khlong Si distribution station, boosting supply capacity and pressure in low-flow areas.

how it was built

HDD HDPE 1,000 mm (7,241 m), microtunneled DI 1,000 mm (1,822 m), jacked steel casing 1,200 mm (74 m), and open-cut HDPE 1,000 mm (412 m), plus tie-ins and fittings at Khlong Si station.

Impact

Increased transmission capacity to low-pressure areas in the Khlong Luang–Khlong Si corridor.