New! Enta's Slope Management Schoolis an information site dedicated to slope construction, by slope construction professionals, and for slope construction professionals.

Hello, everyone. This is Enta. Today, I’d like to talk about installing retaining walls. Let’s say we have a slope like this (in a design cross-section). There’s a design drawing showing the installation of a retaining wall. Let’s assume the design looks something like this (for illustrative purposes). Ground anchors have also been installed. …

I work as an engineer for a local government. This incident began with a terrifying phone call: ”It’s 60 cm too deep.” In this article, I’ll share my experience with this “60 cm over-excavation” incident, covering: (1) what happened, (2) the actions taken by the local government, (3) my thoughts during the response, and (4) lessons learned from this experience…

Hello, everyone. This is Enta. What’s the best order for someone coming from another field to learn construction management as a supervisor? (Part 1) This is a continuation of the previous post. ⑤ The basic rule is to “always document” any discrepancies between the drawings and the site. This is extremely important. There are almost no construction projects where the drawings and the site match perfectly. Especially when it comes to slope work…

Hello, everyone. This is Enta. Since I get asked about this quite often, I thought I’d write a post about it. Every now and then, you see people who switch from being craftsmen to construction management, right? Compared to people who go straight into construction management right after joining the company, it somehow feels like a higher hurdle… Or rather, where…

Hello, everyone. This is Enta. Today I’ve got a really scary story. Makita batteries are used by tons of people—not just on slope-construction sites, but at civil engineering and construction sites in general. Are you Team Makita or Team Hi-Koki? Which side are you on? If you don’t know this, it could cause a fire on the job site. Seriously. The batteries I bought online…

Hello, everyone. This is Enta. To Those of You Who Lack Good Taste! (Part 1) This is a continuation of my previous post, “To Those of You Who Are Told You Lack Good Taste (Part 1).” How can you hone your professional instincts? The answer is simple. Put in the volume. That’s all there is to it. Do more than anyone else…

Hello, everyone. This is Enta. This is a continuation of my last post. Ministry of Land, Infrastructure, Transport and Tourism / Revision of Cost Estimation Standards, Increase in General Administrative Expense Rates / Expansion of Measures Against Extreme Heat, Complete Abolition of the Two-Day Weekend Supplement. Don’t you just think, “Who cares about all this complicated stuff!?” when it comes to this series!? Well, this is where I really want to get to the point, lol. Probably…

Hello, everyone. It’s Enta here. I’m Enta, and I’m going through hell because of pollen... Isn’t this year’s pollen season terrible?? When the wind is strong, I really don’t want to go outside... But anyway... Have you ever been told, “You have no taste!”? Especially after doing something...

Hello, everyone. This is Enta. Ministry of Land, Infrastructure, Transport and Tourism / Revision of Cost Estimation Standards, Increase in General Administrative Expense Rates / Expansion of Measures Against Extreme Heat, Complete Abolition of the Two-Day Weekend Supplement Did you see the revision to the Ministry of Land, Infrastructure, Transport and Tourism’s cost estimation standards announced on March 2, 2026? Since this directly affects slope construction contractors, …