Utah has 978 miles of Interstate Highway. 90% of Utah Highways are rated good compared to 78% for the rest of the country. 44% of Utah Highways are considered congested while the rest of the country is at 55% nationwide and California is the most congested at 85%. None of Utah’s Interstate Highways are rated in poor condition.
The longest Interstate Highway is I-90 which goes from Seattle to Boston and is 3,085 miles long. This Highway misses going through Utah. The second longest Highway is I-80 going from San Francisco to Teaneck, NJ which is 2,907 miles and goes through Utah. In fact, I-80 is only 6 miles from the home office of Rowser Construction!
The costliest Interstate to build was I-95 which reaches from Miami to Maine and is 1,893 miles but cost $8 Billion to build. I-90 was the second most expensive costing $7.5 Billion to build.
States that have the most Interstate miles include:
| Texas | 17 routes | 3,232 miles |
| California | 25 routes | 2,453 miles | Illinois | 23 routes | 2,160 miles |
| Pennsylvania | 21 routes | 1,755 miles |
| Ohio | 21 routes | 1,565 miles |
Americans travel over 600 million miles on our Interstate Highways each year. Our Highways have 1,214 rest areas.
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