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Interstate 80

  • I-80 Auxiliary Routes

  • East

  • Interstate 280 runs from I-80 in Parsippany-Troy Hills, New Jersey southeast through downtown Newark to I-95 near Jersey City.
  • Interstate 380 is a spur from near Stroudsburg, Pennsylvania northwest to I-81 and I-84 near Scranton.
  • Interstate 180 is a spur to Williamsport, Pennsylvania.
  • Interstate 680 is a connection through downtown Youngstown, Ohio, from I-80 northwest of downtown to I-76 south of downtown.
  • Interstate 480 is a loop through the south side of Cleveland, Ohio.
  • Interstate 280 is a spur from I-80 (and I-90) southeast of Toledo, Ohio northwest to I-75 in Toledo.
  • Interstate 180 is a spur to Hennepin, Illinois.
  • Interstate 280 is a half-loop around the south side of the Quad Cities, from I-80 west of Davenport, Iowa to I-80 and I-74 east of Moline, Illinois.
  • Interstate 280 is a half-loop around the south side of the Quad Cities, from I-80 west of Davenport, Iowa to I-80 and I-74 east of Moline, Illinois.
  • Interstate 380 is a spur from near Iowa City, Iowa north past Cedar Rapids into Waterloo.
  • Interstate 680 is a bypass around the north side of Omaha, Nebraska and Council Bluffs, Iowa.
  • Interstate 580 was a spur from I-480 north along U.S. Route 75.
  • Interstate 480 is a short half-loop through downtown Omaha, Nebraska, from I-80 north and east to I-29 in Council Bluffs, Iowa.
  • Interstate 180 is a spur into downtown Lincoln, Nebraska.
  • Interstate 180 is a spur into downtown Cheyenne, Wyoming. It falls far short of meeting Interstate standards, as no part of it is a freeway.
  • Interstate 580 is a partially-completed unsigned spur from I-80 in Reno, Nevada south to Carson City.
  • Interstate 238 is a short connection between I-580 and I-880 near Hayward. Formerly part of State Route 238, it was assigned a nonstandard number because all possible auxiliary numbers of I-80 were in use. It is thus not an auxiliary route of I-80, but it would have been if the situation was different at the time.
  • Interstate 180 was a temporary designation for the Richmond-San Rafael section of I-580. It was renumbered because California already had a State Route 180.
  • Interstate 980 is a short connection between I-580 and I-880 in Downtown Oakland.
  • Interstate 880 runs from I-80 in Oakland south to I-280 in San Jose. The number was originally used for the Sacramento bypass, now part of I-80. It is also known as the Nimitz Freeway. In the past, I-880 was known as CA-17.
  • Interstate 780 connects I-80 in Vallejo to I-680 at Benicia. In the past, this segment was designated as I-680.
  • Interstate 680 runs from I-80 near Fairfield south across I-580 to the south end of I-280 at US 101 in San Jose.
  • Interstate 580 runs from I-80 in Oakland southeast and east to I-5 south of Tracy, forming part of the route between the Bay Area and Los Angeles. From Oakland it continues north with I-80 to Richmond, where it splits northwest to San Rafael across the San Rafael Bridge. The segment between Oakland and San Rafael was formerly designated as CA-17.
  • Interstate 480 was the Embarcadero Freeway in downtown San Francisco, now demolished. Oddly, this freeway was signed as State Route 480.
  • Interstate 380 runs east from I-280 to U.S. Route 101 at San Francisco International Airport and is signed as the Quentin Kopp Freeway. There is no direct connection with I-80.
  • Interstate 280 runs from downtown San Francisco south to San Jose, where it becomes I-680 at U.S. Route 101. There is no freeway-to-freeway connection between I-280 and I-80 in San Francisco.
  • West



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