Striving for Better Construction: “KAIZEN PROJECT” Activity Diary Vol. 3

[Goal 9] Industry, Innovation and Infrastructure
SDGs
[Goal 11] Sustainable Cities and Communities
SDGs
[Goal 13] Climate Action
SDGs

2025.12.02

Hello, I am Nakanishi from JICA Volunteer Program. I work at the Provincial Works Supervision Unit in Alotau, Milne Bay Province. In this diary, I share my work, local nature, and construction sites. Last time, I wrote about the condition of provincial roads and the problems we face, such as heavy rain damage and repair costs. Today, I want to talk about a new idea: preventive maintenance. This means fixing problems before they happen, not after the damage.

In 2023, our office sent a manager to Japan for a training program about bridge maintenance. After that, our team wanted to learn more about Japanese methods for checking and repairing bridges. That is why I started the KAIZEN PROJECT. We held a workshop for our staff. We used one simple steel bridge as an example (Photo 1). In the workshop, I explained how Japan checks bridges and makes maintenance plans (Photo 2).

(Photo 1)

(Photo 2)

We talked about why bridges and culverts are important public assets. I showed how to check the top parts of a bridge, like the main beams and concrete deck (Photo 3). We also looked at the bearings (Photo 4), because they carry heavy loads. For the bottom parts, we compared the bridge foundation from two years ago and now (Photo 5).

(Photo 3)  

(Photo 4)

(Photo 5)

We found some erosion and explained why repair is needed. The main point is: if we check and record the condition early, we can plan repairs before big damage happens. This keeps people safe and saves money. Honestly, my English was not perfect, and the topic was a little technical. Maybe it was boring for some people. But one staff member asked for my slides, so I think they are interested. Next time, we will prepare for a detailed inspection of the same bridge. We will make checklists, damage evaluation rules, and record forms. I hope it goes well. I will take my time and do it carefully.

JICA will work hand in hand with local partners to strengthen Papua New Guinea’s road networks and support sustainable infrastructure.

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