No. Currently the fastest speed in the US is 85 mph (the first to open at that speed is SH-130 between San Antonio, TX and Austin, TX).
the posted speed limit
In the US, the maximum speed on an interstate highway is 70. Until recently, there were a couple of stretches of highway that were limitless.
The speed limit is 55mph.
The normal speed limit on the highway.
Montana
85 Miles in Texas east of Austin Texas
70mph
55 on the highway, and 30 in the city.
It all depends on the type of highway and the speed limit signs.
Whatever the posted speed limit is.
The speed limit on most highways in the US is 65 mph. Depending on conditions, most traffic does 70 to 75 mph.
The Autobahn