The Department of Rural Roads (DRR), through its Road Maintenance Division, undertook rehabilitation works on Road No. LB.4132, connecting Highway No. 3196 to Ban Pho Talad Kaew in Mueang District, Lopburi Province. The project involved complete reconstruction of the pavement structure, including the base, subbase layer, and asphalt pavement surface, across a 6-meter-wide carriageway. The construction covered the sections between km 6+342 – km 6+379, km 6+489 – km 10+163, and km 10+285 – km 10+710, totaling a length of 4.136 kilometers, with an overall project budget of 30 million THB.

The existing road was constructed along a natural canal embankment on soft clay soil, which led to two major types of issues:

1. Stability issues, and

2. Settlement issues.

These issues stemmed from soil movement and inadequate bearing capacity of the foundation soils, resulting in pavement cracking, potholes, and other road surface’s damages. Furthermore, during flood events, rapid water level fluctuations in the canal—particularly rapid drawdowns—caused significant damage to the road. These conditions disrupted transportation, caused vehicle damage, posed safety risks, and greatly impacted local communities.