Interstate 505 | ||||
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Route information | ||||
Defined by S&HC § 617 | ||||
Maintained by Caltrans | ||||
Length: | 32.99 mi[1] (53.09 km) | |||
Existed: | 1977 – present | |||
Major junctions | ||||
South end: | I-80 in Vacaville | |||
North end: | I-5 near Dunnigan | |||
Highway system | ||||
Auxiliary route of the Interstate Highway System State highways in California(list • pre-1964)
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Interstate 505 (I-505) is an Interstate Highway in California between Interstate 80 in Vacaville and Interstate 5 near Dunnigan. I-505 is primarily a rural interstate, but travels through Vacaville and the city of Winters. The interstate 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 Pacific Northwest.
This route is part of the California Freeway and Expressway System.[2]
Power lines connecting Path 15 to Path 66 follow the highway for a while, until one heads northeast and the other northwest.
The southern terminus of I-505 is at I-80 next to the Nut Tree Airport in the Nut Tree area in Vacaville. From there, it travels north about ten miles through rural areas near the western edge of the Sacramento Valley before reaching Winters. I-505 then skirts the eastern city limits of Winters, intersecting with State Route 128 – the only exit in Winters. After leaving that city, the interstate then proceeds north through rural areas again for about 20 miles until it reaches its northern terminus with I-5 near Dunnigan.
For most of its length, I-505 is a four-lane freeway, which is typical for rural interstates in California.
County | Location | Postmile [3][4][5] |
Exit [6] |
Destinations | Notes |
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Solano SOL R0.00-R10.63 |
Vacaville | R0.00 | 1 | I-80 – San Francisco, Sacramento | Southbound exit and northbound entrance; signed as exits 1A (west) and 1B (east) |
R0.00 | 1B | Monte Vista Avenue | Southbound exit and northbound entrance | ||
R1.45 | 1C | Vaca Valley Parkway | Signed as exit 1 northbound | ||
R3.08 | 3 | Midway Road | |||
R5.59 | 6 | Allendale Road | |||
R10.62 | 10 | Putah Creek Road | |||
Yolo YOL 0.00-R22.36 |
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0.40 | 11 | SR 128 west (CR E6 east) – Winters, Davis | |||
4.03 | 15 | Road 29A | |||
6.53 | 17 | Road 27 | |||
10.62 | 21 | SR 16 – Woodland, Esparto | |||
13.43 | 24 | Road 19 | |||
17.45 | 28 | Road 14 (CR E10) – Zamora | |||
20.13 | 31 | Road 12A | |||
R22.36 | I-5 north – Redding | Northbound exit and southbound entrance | |||
1.000 mi = 1.609 km; 1.000 km = 0.621 mi Concurrency terminus • Closed/Former • Incomplete access • Unopened |
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