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$3,022,700,000, an average of $211,600 per mile. For all rural sections to be reconstructed, a total of 13,467 miles, the cost is $2,117,100,000, averaging $157,200 per mile. For the 816 miles of urban sections to be reconstructed the cost is $905,600,000, averaging $1,109,800 per mile.

Relocation

The cost of relocated sections of the system, aggregating 11,891 miles, is $7,236,700,000, an average of $608,600 per mile. For all rural relocated sections, eeeiing 9,867 rhiles, the cost is $3,077,400,000, averaging $311,900 per mile. For all urban relocated sections, totaling 2,024 miles, the cost is $4,159,300,000, averaging $2,055,000 per mile.

“They shall not pass” at this point on U S Route 78 in Alabama, where sight distance is practically zero. The 20-foot pavement is badly damaged and the shoulders worn and narrow, yet this road must handle 3,350 vehicles daily. Reconstruction to remedy such conditions is required on 14,283 miles of the interstate system.

Right-of-way, bridges, and tunnels

All foregoing cost estimates include costs of right-of-way, and of the bridges and tunnels included in the road sections.