A few weeks ago I asked for opinions on the quality of I-10 from Mobile to Houston, and I received several replies which I appreciated. A few days later I drove the 460 +/- miles over two days. I was driving westbound, so this info applies directly only to that side. This is what I found.
I-10 @ Mobile was Very good; this very good, smooth asphalt continued to the MS line and all the way through the state of MS.
In LA I followed the I-10/12/10 route via Baton Rouge, so I cannot speak to the I-10 condition through New Orleans. From the MS line to Exit 92 where we overnighted I found very good cond except for a very few short sections of older concrete; the 18 mile Atchafalaya Bridge is all concrete but in good smooth condition. Immediately west of this bridge is about 15 miles of rough old concrete road which gives a very uncomfortable ride, but there is much work in progress in this area. Due to work areas the traffic was fairly thick in this area.
I took the I-210 bypass at Lake Charles. About half of this (6 miles) was older concrete, giving an uncomfortable ride. After rejoining I-10 there was about 2-3 miles of bad old concrete, another rough ride.
Entering TX at the Sabine, there is a few miles of very bad old concrete in a construction zone. After that it was good asphalt with a few small bumps and some visible cracks, but a good smooth ride right through Houston. We left the highway at Exit 751.
We arrived in the Houston area just before rush hour on a Thursday, leaving the highway on the west side at about 1500. Traffic was a little heavy for the last 30 miles or so, but the highway speed never got below about 50mph. Signage was good, and we had no problem navigating through the city.
Given the reports I received and the road I saw, I think it's important to note that while there are a half dozen or so sections of older concrete road that make for a rough ride in places, these sections are mostly short, and most are in construction areas that are in the process of being resurfaced. The cumulative total of rough road between Mobile and Houston was only about 30 or so miles out of a total distance of 460-- about 6%, that's all. In my view it is a good road with a few relatively small areas to be aware of, but not even close to being among the worst I've seen in the last few years. I would rate it better than many of the Interstates found in PA, and in many northeastern states.
There are also long stretches where the road is two-lane each way, and in some areas the truck traffic was fairly heavy. The mere presence of trucks does not make it bad road.
I hope this was helpful.
John, Diane, and Lincoln, the guard cat. RVM103
Fulltimers since June 2012
2002 Dutch Star 40, Freightliner, Cat 3126, 2004 Element