First - my border crossing into Laos went very smoothly AND I had blue skies with big fluffy clouds on my ride to Muang Khua - what luck! The road from the border to Muang Mai had landslides every 200m or so... but none were very large and so passing was no problem. Then from Muang Mai to Muang Khua, no landslides. This is because the 2nd segment uses proper road construction... where the road escarpments are terraced and there are stone drainage ditches between the escarpment and the road. All of road 4E is a very good road with only the occasional pothole or broken surface. Photographically it's not the greatest, but it's a pleasant ride with little traffic. The road employs gravel shoulders where the gravel gets spread into the road.... so one must be careful cornering. Otherwise, it's a piece of cake!
As for road construction, it's a basic case that is so so common in Asia. Rather than adding 5% to the original capital cost of the road by terracing the escarpments and inserting proper drainage ditches, the roads are cut directly out of the mountains and surprise surprise, high maintenance cost are incurred year after year after year. This is the normal OM of Asia engineering: rather than spend a million dollars to build something properly, spend a half million dollars annually on maintenance. This is a matter I am very well versed in. The Vietnamese border to Muang Mai is an accident waiting to happen, while the next segment to Muang Khua is built properly and experiences very little road disruption from the rain.
I will update more on Northern Laos roads as I go.
As for road construction, it's a basic case that is so so common in Asia. Rather than adding 5% to the original capital cost of the road by terracing the escarpments and inserting proper drainage ditches, the roads are cut directly out of the mountains and surprise surprise, high maintenance cost are incurred year after year after year. This is the normal OM of Asia engineering: rather than spend a million dollars to build something properly, spend a half million dollars annually on maintenance. This is a matter I am very well versed in. The Vietnamese border to Muang Mai is an accident waiting to happen, while the next segment to Muang Khua is built properly and experiences very little road disruption from the rain.
I will update more on Northern Laos roads as I go.