[CII] Cost per mile of . . . ?

[David S. Isenberg (isen)]

Anybody here have some insight into the costs of roads?

For example:
A rule of thumb cost per mile for building a simple paved 2 lane road?
Cost per mile to operate, maintain and repair existing simple 2-lane?
Specific examples to illustrate or bound the above?

How about 4-lane, limited-access divided highway?
Cost per mile to build?
Annual cost per mile to operate, maintain, repair?

David I
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