Spurs, Bypasses and Beltways: Mississippi, Montana, Nebraska and Nevada

The Missouri River at Omaha, Nebraska, USA Photo by Scott Redd (Photo credit: Wikipedia)

Mississippi has two short auxiliary highways. Interstate 110 uses its four miles to connect Interstate 10 to Biloxi. In Jackson Interstate 220 leaves I-20 at Exit 41 and travels north for 12 miles to I-55 at Exit 104.

Interstate 115 in Montana is just over one mile in length and joins I-15/I-90 to Iron Street in Butte. Connecting I-15 to Business I-15/US 89 is the mile of Interstate 315 in Great Falls.

The three auxiliaries of Interstate 80 are in Nebraska. Just over three miles of Interstate 180 depart I-80 at Exit 401 and travel south to Lincoln. Interstate 480 leaves I-80 at Exit 452 in Omaha and travels north and then east for five miles to end at I-29 in Council Bluffs, Iowa. The longest of these three is Interstate 680. It leaves I-80 in Omaha at Exit 446 and travels north and then east for 43 miles before crossing the Missouri River and ending at Exit 61 on I-29 in Iowa.

The Las Vegas area has the two auxiliaries of Interstate 15. Joining I-15 at Exit 34 in Paradise with I-515 at Exit 61 in Henderson is the 13 miles of Interstate 215. It travels in an east-west direction. The 21 miles of Interstate 515 connect US 93 in Henderson with I-15 in Las Vegas.