Interstate 540 (North Carolina)

I-540
Raleigh Outer Loop
Route information
Auxiliary route of I-40
Length	42.2 mi[1][2][3] (67.9 km) I-540: 25.84 mi (41.59 km)[4] NC 540: 16.4 mi (26.4 km)
Existed	1997–present
Component highways	I-540 (Durham–Knightdale) NC 540 (Apex–Durham)
NHS	Entire route
Major junctions
Beltway around Raleigh
Major intersections	I-40 in Durham US 70 near Raleigh US 1 in Raleigh US 401 in Raleigh I-87 / US 64 / US 264 in Knightdale US 1 near Apex US 64 in Apex NC 885 Toll in Morrisville
Location
Country	United States
State	North Carolina
Counties	Durham, Wake
Highway system
Interstate Highway System Main Auxiliary Suffixed Business Future North Carolina Highway System Interstate US State Scenic
← NC 522 NC 561 →

Interstate 540 (I-540) and North Carolina Highway 540 (NC 540) are part of a partially completed beltway around the city of Raleigh in the US state of North Carolina, forming the Raleigh Outer Loop. When complete, the route will form the loop the city, meeting its parent route of I-40 in 2 locations. And NC-540 is a tollway road while I-540 is a freeway road.

1. ↑ Google (March 4, 2014). "Interstate 540 (North Carolina)" (Map). Google Maps. Google. Retrieved March 4, 2014.
2. ↑ Google (March 4, 2014). "North Carolina Highway 540" (Map). Google Maps. Google. Retrieved March 4, 2014.
3. ↑ Siceloff, Bruce (August 2, 2012). "Toll collection starts Thursday on 9 miles of 540 Outer Loop". The News & Observer. Raleigh, NC. Archived from the original on August 3, 2012. Retrieved August 2, 2012.
4. ↑ "Table 2 – Auxiliary Routes – FHWA Route Log and Finder List – Interstate Highway System – National Highway System – Planning – FHWA". www.fhwa.dot.gov. Archived from the original on July 3, 2017. Retrieved June 8, 2019.