Interstate 505
Template:Short description Template:For Template:Redirect Template:Use American English Template:Use mdy dates Template:Infobox road 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.
Power lines connecting Path 15 to Path 66 follow the highway for a while, until one heads northeast and the other northwest.
Route description
The entirety of I-505 is defined in section 617 of the California Streets and Highways Code as Route 505, and that the highway is from "Route 80 near Vacaville to Route 5 near Dunnigan".<ref name="CSHC617">Template:Cite web</ref> This definition roughly corresponds with the Federal Highway Administration (FHWA)'s route logs of I-505.<ref name=fhwa-nhs /><ref name="FHWA">Template:Cite web</ref>
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 Template:Convert 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 Template:Convert, including an interchange with California State Route 16 near Madison, until it reaches its northern terminus with I-5 near Dunnigan.
For its entire length, I-505 is a four-lane freeway (two lanes in each direction) with a maximum speed limit of Template:Convert, which is typical for rural Interstates in California.
I-505 is part of the California Freeway and Expressway System,<ref name="cafes">Template:CAFESystem</ref> and is part of the National Highway System,<ref name=fhwa-nhs>Template:FHWA NHS map</ref> a network of highways that are considered essential to the country's economy, defense, and mobility by the Federal Highway Administration.<ref name=NHS-FHWA>Template:FHWA NHS</ref>
History
What is now I-505 was originally conceived as part of a loop Interstate with a directional suffix, I-5W.<ref name="cahighways_5">Template:Cite web</ref> However, I-5W and most of the other Interstates around the country with directional suffixes were eventually renumbered or eliminated, except I-35E and I-35W in Texas and Minnesota. I-69 segments I-69W, I-69C, and I-69E in southern Texas have since been designated as well along with proposed suffixed segments for future extensions of I-14 and I-27 to follow. The former route of I-5W now corresponds to I-580 from I-5 south of Tracy to Oakland, I-80 from Oakland to Vacaville, and I-505 from Vacaville to I-5 near Dunnigan.
The northernmost section of I-505, between SR 16 in Madison and I-5 near Dunnigan, opened in August 1977.<ref>Template:Cite news</ref> Template:-
Exit list
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See also
References
External links
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