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
The speed limit for vehicles merging onto the highway from an on ramp is typically the same as the posted speed limit for that section of the highway.
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.
The off-ramp speed limit on the highway is typically 25-35 mph.
No, it is not legal to exceed the speed limit on a highway under any circumstances.
Montana
70mph
85 Miles in Texas east of Austin Texas
The speed limit in the fast lane is the same as the speed limit for the road or highway you are driving on.
55 on the highway, and 30 in the city.