U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
202-366-4000
October 21, 2014
Table HM-18
| FUNCTIONAL SYSTEM | FEDERAL-AID HIGHWAYS | NON- FEDERAL-AID HIGHWAYS |
TOTAL | ||||
|---|---|---|---|---|---|---|---|
| NATIONAL HIGHWAY SYSTEM | OTHER | TOTAL | |||||
| INTERSTATE | OTHER | TOTAL | |||||
| Rural: | |||||||
| Principal Arterial: | |||||||
| Interstate | 29,678 | - | 29,678 | - | 29,678 | - | 29,678 |
| Other Freeways and Expressways | - | 4,822 | 4,822 | 20 | 4,842 | - | 4,842 |
| Other | - | 89,265 | 89,265 | 1,140 | 90,405 | - | 90,405 |
| Subtotal | 29,678 | 94,087 | 123,766 | 1,160 | 124,926 | - | 124,926 |
| Minor Arterial | - | 5,513 | 5,513 | 127,332 | 132,845 | - | 132,845 |
| Major Collector | - | 1,665 | 1,665 | 413,151 | 414,816 | - | 414,816 |
| Minor Collector | - | 4 | 4 | - | 4 | 262,485 | 262,490 |
| Local | - | 25 | 25 | - | 25 | 2,002,374 | 2,002,399 |
| Total Rural | 29,678 | 101,295 | 130,973 | 541,643 | 672,616 | 2,264,859 | 2,937,476 |
| Small Urban: | |||||||
| Principal Arterial: | |||||||
| Interstate | 2,690 | - | 2,690 | - | 2,690 | - | 2,690 |
| Other Freeways and Expressways | - | 1,330 | 1,330 | 9 | 1,338 | - | 1,338 |
| Other | - | 13,323 | 13,323 | 965 | 14,287 | - | 14,287 |
| Subtotal | 2,690 | 14,652 | 17,342 | 973 | 18,316 | - | 18,316 |
| Minor Arterial | - | 753 | 753 | 21,271 | 22,024 | - | 22,024 |
| Major Collector | - | 74 | 74 | 27,572 | 27,646 | - | 27,646 |
| Minor Collector | - | 8 | 8 | 2,135 | 2,143 | - | 2,143 |
| Local | - | 15 | 15 | - | 15 | 170,552 | 170,566 |
| Total Small Urban | 2,690 | 15,502 | 18,192 | 51,951 | 70,143 | 170,552 | 240,695 |
| Urbanized: | |||||||
| Principal Arterial: | |||||||
| Interstate | 15,206 | - | 15,206 | - | 15,206 | - | 15,206 |
| Other Freeways and Expressways | - | 10,188 | 10,188 | 76 | 10,264 | - | 10,264 |
| Other | - | 50,760 | 50,760 | 1,462 | 52,223 | - | 52,223 |
| Subtotal | 15,206 | 60,948 | 76,154 | 1,538 | 77,693 | - | 77,693 |
| Minor Arterial | - | 1,446 | 1,446 | 87,558 | 89,004 | - | 89,004 |
| Major Collector | - | 368 | 368 | 93,376 | 93,744 | - | 93,744 |
| Minor Collector | - | 3 | 3 | 2,966 | 2,969 | - | 2,969 |
| Local | - | 88 | 88 | - | 88 | 673,794 | 673,882 |
| Total Urbanized | 15,206 | 62,853 | 78,059 | 185,438 | 263,497 | 673,794 | 937,292 |
| Total Urban: | |||||||
| Principal Arterial: | |||||||
| Interstate | 17,896 | - | 17,896 | - | 17,896 | - | 17,896 |
| Other Freeways And Expressways | - | 11,517 | 11,517 | 85 | 11,602 | - | 11,602 |
| Other | - | 64,083 | 64,083 | 2,427 | 66,510 | - | 66,510 |
| Subtotal | 17,896 | 75,601 | 93,497 | 2,512 | 96,009 | - | 96,009 |
| Minor Arterial | - | 2,199 | 2,199 | 108,829 | 111,028 | - | 111,028 |
| Major Collector | - | 442 | 442 | 120,947 | 121,389 | - | 121,389 |
| Minor Collector | - | 11 | 11 | 5,101 | 5,112 | - | 5,112 |
| Local | - | 102 | 102 | - | 102 | 844,346 | 844,448 |
| Total Urban | 17,896 | 78,355 | 96,251 | 237,389 | 333,640 | 844,346 | 1,177,986 |
| Total Rural and Urban | 47,575 | 179,650 | 227,224 | 779,033 | 1,006,257 | 3,109,205 | 4,115,462 |
(1) Includes the 50 States, and the District of Columbia.