The following highways are numbered 505:
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The following highways are numbered 505:
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Interstate 505 (California) 
Interstate 505 (Oregon; never built)
Florida State Road 505 
Louisiana Highway 505 
Maryland Route 505 
County Route 505 (New Jersey) 
New Mexico State Road 505 
Ohio State Route 505 
Pennsylvania Route 505 
Ranch to Market Road 505 
Washington State Route 505 | Preceded by 504 | Lists of highways 505 | Succeeded by 506 |
Interstate 505 (I-505) is a north–south auxiliary Interstate Highway in the Sacramento Valley in Northern California. It is a spur auxiliary route of I-5 that runs from near Dunnigan south to I-80 in Vacaville. I-505 is primarily a rural Interstate, but travels through Vacaville and the city of Winters. The highway is the primary route connecting the San Francisco Bay Area and the northern Sacramento Valley, bypassing Sacramento and its attendant city traffic. Thus, it is a major route for travelers heading directly from the San Francisco Bay Area to the Shasta Cascade and the Pacific Northwest.
