Figure 2: Percent of Average Daily Traffic on Bridges by Highway Type,,
,Number,ADT on Bridges % by Total ADT
Rural,,
Interstate,"27,648",10.6%
Other Arterial,"76,456",10.5%
Collector,"143,470",4.6%
Local,"208,641",1.6%
Total Rural,"456,215",27.4%
Urban,,
Interstate,"27,929",34.7%
Other Arterial,"66,443",33.3%
Collector,"15,548",2.3%
Local,"27,940",2.3%
Total Urban,"137,860",72.6%
"NOTE: Percentages include the 50 U.S. states, the District of Columbia, and Puerto Rico.",,
"SOURCE: U.S. Department of Transportation, Federal Highway Administration, 2006 Status of the Nation's Highways, Bridges, and Transit: Conditions and Performance, Exhibit 2-16, p. 2-20, available at http://www.fhwa.dot.gov/policy/2006cpr/pdfs/chap2.pdf ",,