"Double Nickel"? It's shorthand (or shortspeak) for fifty-five miles per hour.
It refers to the 55 mph speed limit.
1000000000000000
On US highways, 102 inches without requiring a permit.
There are 67 Interstate Highways in the US.
No it does not.
The three major US highways or routes that connect to Denver Colorado are RTs. 70, 75 and 25.
North Carolina
construction of highways
Interstate, US, State and Farm-To-Market highways are maintained by the Texas Department of Transportation. County highways and roads are generally maintained at the county level.
Interstate Highways 95 and 295 and US Highway 1.
East-to-west direction highways are even-numbered while north-south are odd-numbered.
They are controlled-access Highways. Interstate highways in the US are this type of highway.