A Website for Road Enthusiasts

including those that "count" or "clinch" counties and interstate highways

This site provides tables that contain the following information, current as of February 28, 2008 (see also the Update page): 

	Interstate highways, both 2-digit and 3-digit, with estimated mileages as signed plus "hidden" designated routes (e.g. I-695 in DC and I-194)
	The mileages provided by the FHWA Route Log and Finder List (October 31, 2002) and the differences between FHWA's mileages and those estimated by this website
	The names of the counties the highways pass through and quantity
	Counties per interstate mileage
	Cities served by each interstate highway

Please see the Methodology page for more specific information regarding how the mileages and counties were determined for the tables provided on this site.  

The Tables:  All tables are in HTML format.  If you use any of the information in the following tables, please cite this website as a source.

	Table 1:  Sorted by interstate route and then State (includes mileages by state).
	Table 2:  Sorted by counties per estimated mileage, including both totals for entire interstates and for individual States.
	Table 3:  Sorted by number of counties entered, then by counties per estimated mileage.
	Table 4:  Interstate mileage totals only sorted by route and then State (i.e. no individual state segments).
	Table 5:  Interstate mileage totals only sorted by counties per estimated mileage.
	Table 6:  Interstate mileage totals only sorted by number of counties entered, then by counties per estimated mileage.