774:
731:
887:
747:
1011:
2611:
2567:
2152:
1132:
762:
263:
128:
2814:
2450:
2393:
2320:
2290:
2056:
1880:
1370:
92:
1899:
1357:
1120:
2133:
2444:
1893:
1215:
28:
2139:
1363:
1126:
235:
170:
123:
2605:
2561:
878:(named after Joseph P. Sinclair, District Engineer for District 4 California Division of Highways). A 26-foot (7.9 m) high faux-sandstone statue of Father Serra kneeling and pointing over the freeway is located at a highway rest area just north of the SR 92 intersection between the Bunker Hill Drive and Black Mountain Road exits on northbound I-280 in Hillsborough and can be clearly seen by drivers in both directions.
466:
451:
2438:
2146:
2062:
1905:
1886:
1840:
1717:
1530:
1376:
1264:
1221:
221:
207:
193:
175:
156:
2802:
2456:
2399:
2326:
2296:
2158:
249:
807:. The northern terminus of I-280 is now within about a mile (1.6 km) of I-80's western terminus (at the interchange with US 101), but the two Interstates do not directly connect; instead, I-280 complies with numbering conventions by virtue of its interchanges with the southern ends of I-680 and I-880, both of which connect to I-80 at their northern terminuses. Although San Francisco
3989:
796:). Both freeways are northâsouth routes connecting San Jose with San Francisco; however, unlike I-280, the route that US 101 takes between the two cities goes entirely through urbanized areas. The vast majority of the population of the San Francisco Peninsula lives somewhere between I-280 and US 101.
811:
and has had several opportunities to connect I-280 to I-80, it has chosen to use the money for other purposes. Instead, I-280's northernmost extension, which includes a significant double-deck section (with northbound traffic on the lower deck and southbound traffic on the upper), primarily functions
1043:
was placed on the highest bridge overnight, where it obviously would be impossible to drive. The following day, San Jose City
Councilmember Joe Colla was photographed standing next to the car, an image that was circulated across many newspapers. It has been suggested this stunt nudged the state of
1038:
The interchange at the beginning of I-280 at I-680 and US 101 in San Jose was constructed years before its completion. The three flyovers, with no connecting ramps, stood as a 110-foot-tall (34 m) monument to inefficiency for years in the 1970s, becoming the butt of local jokes. The
862:(Caltrans), meaning that it is a substantial section of highway passing through a "memorable landscape" with no "visual intrusions", where the potential designation has gained popular favor with the community. The Junipero Serra Freeway is the name of I-280 from SR 1 in San Francisco to
1022:
underneath the Bay Bridge approach/I-80 to connect to SR 480 and then loop back to the Bay Bridge approach/I-80 near 1st Street. However, the segment of I-280 between 3rd Street and SR 480 was never built. This left I-280 terminating in midair at 3rd Street, along with
773:
958:. I-480 would have continued south on the never-built section of the Southern-Embarcadero Freeway from Folsom and the Embarcadero to 5th and King streets, then along the present Southern-Embarcadero Freeway to meet the Southern Freeway (now I-280) near the
1063:
and insurance data over the past five years, according to which five of the 20 one-mile (1.6 km) stretches of highway in the state with the highest costs for this reason are on I-280, the worst being between San Bruno and
Cupertino.
1035:, plans to connect I-280 to I-80 were formally abandoned, the earthquake-damaged Embarcadero Freeway was torn down in 1991, and the northern terminus of I-280 was reconfigured to the present-day King Street on/offramps in 1997.
3235:
730:
1007:) was completed in the late 1960s alongside SR 85. The section between SR 92 (San Mateo) and SR 84 was not completed until the 1970s. Until then, traffic was routed on Cañada Road between the two ends.
894:. These early plans essentially called for an Interstate loop route that would head south down the San Francisco Peninsula from San Francisco to San Jose, then head north through the eastern cities of the East Bay to
1031:(which was also never built). This also caused the completed freeway segment from the Bay Bridge approach/I-80 near 1st Street to The Embarcadero to be signed as part of SR 480 instead of I-280. After the
973:, I-280's legislative designation was officially applied to the planned route. This replaced SR 1 in San Francisco; the new SR 1 alignment turned northeast where I-280 now runs, quickly ending at
677:) and Daly City (SR 1) has been called the "World's Most Beautiful Freeway" since its dedication in the 1960s. Drivers along this portion of I-280 are treated to scenic views of the
1000:
at the western Bay Bridge approach. This change was made on the state level in 1968, restoring SR 1 to its current alignment and truncating SR 82, SR 87 and SR 480.
685:
to the east and are isolated by hills from the cities to the east. Through much of this segment, the freeway is actually running just inside the eastern rim of the rift valley of the
3730:
3244:
3134:
3053:
1044:
California to find the funds to complete the freeway. The ramps opened five years later in 1981. In 2010, a resolution was introduced in the state legislature to name it the
988:
A realignment approved
January 1968 primarily took I-280's legislative definition onto its current route. This new routing ran along what had been SR 1, SR 82,
373:
4065:
3507:
3420:
963:
4070:
4050:
3613:
580:
419:
414:
918:. This ran along the present alignment of I-280 south of San Francisco, but, in San Francisco, it was instead intended to run north parallel to
4055:
3384:
2837:
3356:
3284:
970:
4030:
3080:
424:
3187:
3161:
2926:
3027:
394:
556:
is known as the "World's Most
Beautiful Freeway" due to its scenic route through the San Francisco Peninsula. From SR 1 to the
4035:
3454:
1927:
855:
843:
714:
434:
409:
91:
858:
and, from the San MateoâSanta Clara county line to the San Bruno city limits, is officially designated as a scenic highway by the
3467:
3397:
3392:
859:
847:
77:
53:
4040:
746:
3775:
3761:
3582:
363:
2769:
3546:
3494:
2627:
955:
429:
404:
368:
3489:
3966:
3877:
2169:
874:
in the 18th century. I-280 from its southern terminus at US 101 and I-680 north to I-880 in San Jose is part of the
3608:
3858:
3834:
3829:
3819:
3800:
3790:
3785:
3573:
981:). SR 1, however, continued to be signed along its former (and current) alignment, which had not been upgraded to
378:
3333:
2214:
2093:
813:
399:
3749:
3694:
3663:
4060:
2973:
2196:
1052:
663:
866:, as named by Assembly Concurrent Resolution 140, Chapter 208 in 1967, in honor of Spanish missionary
3628:
3536:
2845:
1098:
1028:
871:
851:
808:
545:
323:
72:
3942:
3927:
3922:
3917:
3911:
3898:
3233:
2818:
850:, a network of highways that are considered essential to the country's economy, defense, and mobility by the
670:
before it runs across a southeastern swath of the city of San
Francisco on the way to its northern terminus.
3537:
Planning maps for the pre-1968 planned route of the freeway along
Junipero Serra Boulevard in San Francisco
2615:
2571:
2165:
1675:
1639:
1573:
1468:
1139:
947:
934:
and Park
Presidio, along what would have been the Park Presidio Freeway north to the south approach to the
651:
623:
565:
506:
490:
386:
327:
266:
135:
3424:
2838:"Table 2: Auxiliary Routes of the Dwight D. Eisenhower National System Of Interstate and Defense Highways"
3971:
3960:
3653:
3648:
3638:
3633:
3623:
3602:
2623:
2407:
2161:
1602:
1380:
1135:
1056:
1032:
1019:
997:
939:
923:
836:
824:
800:
643:
627:
576:
525:
502:
358:
238:
178:
131:
3001:
792:
For nearly all of its length, I-280 runs roughly parallel and several miles to the west of US 101 (
761:
3506:
1666:
1018:
A direct freeway connection between I-280 and I-80 was never completed. I-280 was planned to run along
993:
469:
454:
4075:
3853:
3847:
3795:
3780:
3769:
2460:
2066:
1917:
1913:
1909:
1855:
1843:
1720:
1537:
1533:
1512:
1384:
1267:
1226:
1151:
1060:
989:
974:
907:
863:
828:
784:
780:
698:
674:
350:
270:
224:
210:
196:
182:
159:
3744:
3738:
3306:"Person Details for Joseph A Colla, 'United States Social Security Death Index' â FamilySearch.org"
3224:"Opening Ceremonies PamphletâThe Sinclair Freeway-Interstate 280âCalif Div. of Highways-District 4"
2464:
2403:
2371:
2330:
2300:
1963:
919:
690:
584:
529:
252:
3689:
3683:
3675:
2806:
1155:
647:
631:
518:
3234:
California
Department of Transportation; California State Transportation Agency (January 2021).
568:). From the James Lick Freeway to its northern end at King and 5th streets, I-280 is called the
4045:
3706:
3566:
2977:
2233:
Northbound exit as well as southbound entrance from westbound
Westborough Blvd. are via exit 44
1541:
1392:
1147:
891:
706:
494:
3429:
3937:
3903:
3893:
3887:
3882:
3872:
3866:
3839:
3824:
3814:
3808:
3725:
3719:
2238:
2042:
1938:
1847:
1643:
1555:
1478:
1161:
1045:
1040:
886:
832:
737:
718:
667:
659:
639:
635:
619:
607:
533:
256:
242:
228:
200:
96:
3243:. Sacramento: California Department of Transportation. pp. 89, 341, 342. Archived from
3108:
2416:
North end of SR 1 overlap; northbound left exit and southbound entrance; SR 1 south exit 511
1003:
For the scenic portion, the section of I-280 between SR 85 (Cupertino) and SR 84 (
3002:"'Most Beautiful Freeway' Is the Role Model : Challenge Handed to Toll Road Designers"
2982:(Topographic map). 1:24,000. 7.5 Minute Series. Reston, VA: United States Geological Survey
2873:"California Highways: Interstate Highway Types and the History of California's Interstates"
2733:
Former northern terminus; replaced with the current King Street ramps; northbound exit only
2579:
2334:
2304:
2070:
2003:
1701:
1446:
1103:
1004:
911:
678:
655:
510:
214:
186:
163:
139:
2951:
8:
2650:
1851:
1569:
1464:
1388:
951:
895:
753:
710:
702:
694:
498:
1164:; US 101 north exit 384, south exit 385B; Sinclair Freeway continues east as I-680 north
2757:
2619:
2575:
2411:
1545:
935:
931:
557:
552:
to San
Francisco. One of the dedication signs (in Daly City) still indicates that the
3559:
3498:
3213:
2535:
1271:
978:
927:
686:
682:
3551:
867:
541:
2252:
1790:
1143:
793:
3531:
1010:
3305:
1027:
at 5th Street that were intended to connect to the second proposed location of a
1860:
Southbound exit to SR 92 west is via exit 34; SR 92 east exits 8A-B, west exit 8
1550:
Signed as exits 12A (north) and 12B (south); SR 85 north exit 19, south exit 19A
3976:
3952:
3947:
3932:
3711:
3658:
3643:
3237:
2020 Named Freeways, Highways, Structures and Other Appurtenances in California
2656:
25th Street not signed northbound; Cesar Chavez Street was formerly Army Street
2539:
2468:
1692:
1635:
899:
689:. A particularly attractive six-mile (9.7 km) stretch of the freeway from
646:
before it settles along its scenic route just to the west of the cities of the
1397:
West end of the Sinclair Freeway; SR 17 north exits 26A-B; I-880 south exit 1B
4024:
3588:
3541:
2422:
915:
514:
331:
303:
284:
3357:"This Bay Area highway sees more roadkill than any other road in the state"
3341:
3310:
2780:
2633:
2585:
966:
until I-280 was built. The I-280 number was approved on November 10, 1958.
959:
817:
943:
95:
Junipero Serra Freeway between the San MateoâSanta Clara county line and
823:
Major intersections include US 101 and SR 1 in San Francisco,
3452:
3261:
3185:
3159:
2924:
2903:
1648:
Arastradero Road not signed northbound; Palo Alto not signed southbound
787:
runs north-south parallel to I-280 through the middle of the photograph
603:
591:
313:
3088:(Map). Scale not given. Washington, DC: Federal Highway Administration
630:
westward. In between San Jose and San Francisco, I-280 passes through
3423:. Sacramento: California Department of Transportation. Archived from
3107:
Natzke, Stefan; Neathery, Mike & Adderly, Kevin (June 20, 2012).
1955:
1806:
1024:
549:
3471:
2872:
3418:
3162:"Officially Designated State Scenic Highways and Historic Parkways"
2927:"Officially Designated State Scenic Highways and Historic Parkways"
2339:
Southbound signage; south end of SR 1 overlap; SR 1 north exit 509B
2075:
North end of SR 35 overlap; northbound exit and southbound entrance
898:. This route now basically comprises present-day I-280, I-680, and
575:
I-280 is one of two auxiliary Interstate designations to appear on
2389:
2316:
2052:
1876:
1231:
Signed as exit 2 northbound; Virginia Street not signed northbound
3285:"Herhold: The story behind Joe Colla's famous 1976 highway stunt"
982:
3195:. Sacramento: California Department of Transportation. p. 5
3028:"Roadshow: Is I-280 truly the 'World's Most Beautiful Freeway'?"
3521:
2972:
2686:
2601:
2517:
2503:
2435:
2352:
2269:
2209:
2187:
2174:
Signed as exit 43A southbound, 43B northbound; I-380 exits 5A-B
2108:
2088:
2033:
2016:
1953:
1788:
1754:
1427:
1410:
1320:
1306:
1244:
1177:
736:
Aerial view of I-280 in San Jose, looking northeast toward the
658:. I-280 reemerges in a decidedly urbanized area in the city of
3078:
2729:
1804:
1116:
709:, partly filling the rift valley. The waters are impounded by
673:
The segment of the Junipero Serra Freeway between Cupertino (
599:
27:
3516:
2738:
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
717:; I-280 crosses the deep valley formed by this creek on the
816:, as suggested by signage on northbound US 101 at the
560:(US 101) in San Francisco it is officially called the
3526:
701:, formed by water piped over 160 miles (260 km) from
2632:
Northbound exit and southbound entrance; northern end of
595:
489:) is a 57.22-mile-long (92.09 km) major northâsouth
3160:
California Department of Transportation (August 2019).
2925:
California Department of Transportation (August 2019).
942:(Embarcadero Freeway), which would have headed east on
3457:. Sacramento: California Department of Transportation.
3141:. Sacramento: California Office of Legislative Counsel
3060:. Sacramento: California Office of Legislative Counsel
2588:; signed as exit 54 southbound; US 101 north exit 430A
2415:
2386:
2338:
2313:
2074:
1921:
1873:
3581:
3453:
California Department of Transportation (July 2007).
3167:. Sacramento: California Department of Transportation
3106:
2932:. Sacramento: California Department of Transportation
2689:
2683:
2631:
2598:
2520:
2506:
2500:
2473:
2432:
2355:
2349:
2272:
2266:
2212:
2206:
2190:
2184:
2111:
2105:
2091:
2085:
2036:
2030:
2019:
2013:
1757:
1751:
1430:
1424:
1413:
1407:
1323:
1309:
1303:
1247:
1241:
1180:
1174:
779:Aerial view directed west showing interchange with
517:, running just to the west of the larger cities of
2732:
2726:
1159:
1113:
3508:Template:Attached KML/Interstate 280 (California)
3079:Federal Highway Administration (March 25, 2015).
2867:
2865:
2863:
2309:Northbound signage; SR 1 north exits 509B and 510
1039:highlight prank occurred in January 1976, when a
4022:
3354:
3186:California Department of Transportation (2012).
3115:. Washington, DC: Federal Highway Administration
2952:"In the Eye of the Beholder | A Kauai Blog"
2213:Northbound exit and southbound entrance; former
2092:Southbound exit and northbound entrance; former
954:, and onto the Embarcadero Freeway to reach the
626:in San Jose, where it acts as a continuation of
1411:Stevens Creek Boulevard, West San Carlos Street
926:which would have been at the junction with the
103:
3153:
2860:
3567:
3262:"California Highways: Former State Route 480"
590:I-280 was formerly shown on the app icon for
3355:Stoughtenborough, Ryce (November 11, 2021).
3527:California Highway Patrol Traffic Incidents
3379:
3377:
3082:National Highway System: California (North)
890:1955 map of the planned Interstates in the
606:. This is because the highway goes through
3574:
3560:
713:, which drains into San Francisco Bay via
3511:
3446:
3419:California Department of Transportation.
3412:
2898:
2896:
2894:
2892:
2890:
1014:Cars driving near Page Mill Road on I-280
803:, its parent Interstate, although it was
4066:State Scenic Highway System (California)
3374:
3331:
3135:"Article 2.5 of Chapter 2 of Division 1"
3100:
3072:
2707:At-grade intersection; northern terminus
1009:
885:
844:California Freeway and Expressway System
799:I-280 does not currently intersect with
4071:Transportation in Sunnyvale, California
4051:Roads in Santa Clara County, California
3468:California Department of Transportation
3398:California Department of Transportation
3393:California Numbered Exit Uniform System
3282:
3254:
2690:Northbound exit and southbound entrance
2521:Northbound exit and southbound entrance
2507:Southbound exit and northbound entrance
2474:Southbound exit and northbound entrance
2356:Southbound exit and northbound entrance
2273:Southbound exit and northbound entrance
2191:Northbound exit and southbound entrance
2112:Southbound exit and northbound entrance
2037:Southbound exit and northbound entrance
2020:Northbound exit and southbound entrance
1431:Southbound exit and northbound entrance
1414:Northbound exit and southbound entrance
1324:Southbound exit and northbound entrance
1310:Northbound exit and southbound entrance
1248:Southbound exit and northbound entrance
1181:Southbound exit and northbound entrance
910:on September 15, 1955, as a route from
860:California Department of Transportation
839:and I-680 and US 101 in San Jose.
536:, I-280 was built and dedicated as the
4023:
3139:California Streets & Highways Code
3127:
3109:"What is the National Highway System?"
3054:"Article 2 of Chapter 2 of Division 1"
2887:
2420:
938:. At that point, I-280 would have met
4056:Roads in San Mateo County, California
3555:
3385:"Interstate 280 Freeway Interchanges"
3334:"Roadshow: The Joe Colla Interchange"
3332:Richards, Gary (February 16, 2010) .
2966:
2904:"California Highways: Interstate 280"
2722:
2714:
2703:
2694:
2677:
2669:
2660:
2649:
2640:
2592:
2557:
2548:
2534:
2525:
2511:
2494:
2487:
2478:
2426:
2380:
2369:
2360:
2343:
2286:
2277:
2260:
2251:
2242:
2229:
2220:
2200:
2178:
2129:
2116:
2099:
2079:
2046:
2024:
2007:
1995:
1986:
1976:
1967:
1947:
1937:
1931:
1916:west / Bunker Hill Drive â
1867:
1837:
1828:
1820:
1816:
1800:
1784:
1774:
1765:
1745:
1738:
1729:
1714:
1705:
1691:
1682:
1664:
1655:
1634:
1625:
1615:
1606:
1594:
1585:
1568:
1559:
1527:
1518:
1507:
1498:
1491:
1482:
1463:
1454:
1444:
1435:
1418:
1401:
1353:
1344:
1337:
1328:
1314:
1297:
1290:
1281:
1261:
1252:
1235:
1211:
1202:
1194:
1185:
1168:
1107:
1048:in memory of the late councilmember.
3058:California Streets and Highways Code
3046:
2976:(2018). Written at Menlo Park, CA.
2544:Mission Street not signed northbound
2303:south / Eastmoor Avenue â
1055:, researchers published a report on
618:The southern end of I-280 is at the
613:
610:, the home of Apple's headquarters.
577:opposite coasts of the United States
3283:Herhold, Scott (October 16, 2013).
2210:Avalon Drive, Westborough Boulevard
2170:San Francisco International Airport
740:(I-680/US 101) in the distance
13:
3517:Caltrans: I-280 highway conditions
3455:"Log of Bridges on State Highways"
854:(FHWA). I-280 is eligible for the
681:to the west and, at a few points,
63:57.22 mi (92.09 km)
14:
4087:
4031:Interstate Highways in California
3480:
2954:. Great-hikes.com. March 23, 2005
2819:San Francisco Bay Area portal
2673:18th Street not signed northbound
2069:north (Skyline Boulevard) â
1307:Race Street, Southwest Expressway
814:Financial District, San Francisco
544:who founded the first nine of 21
3987:
2812:
2800:
2718:Continuation beyond Fifth Street
2609:
2603:
2565:
2559:
2518:San Jose Avenue, Bosworth Street
2454:
2448:
2442:
2436:
2397:
2391:
2353:Eastmoor Avenue, Sullivan Avenue
2324:
2318:
2294:
2288:
2156:
2150:
2144:
2137:
2131:
2060:
2054:
1903:
1897:
1891:
1884:
1878:
1838:
1715:
1528:
1374:
1368:
1361:
1355:
1262:
1219:
1213:
1138:north (Sinclair Freeway) /
1130:
1124:
1118:
956:San FranciscoâOakland Bay Bridge
772:
760:
745:
729:
464:
449:
261:
247:
233:
219:
205:
191:
173:
168:
154:
126:
121:
90:
26:
16:Interstate highway in California
4036:San Francisco Bay Area freeways
3522:Caltrans Traffic Conditions Map
3461:
3348:
3325:
3298:
3276:
3227:
3218:
3207:
3179:
2974:United States Geological Survey
2034:Larkspur Drive, Millbrae Avenue
1977:Black Mountain Road, Hayne Road
1225:7th Street, Virginia Street to
1053:University of California, Davis
922:, past the planned west end of
835:, SR 85 in Cupertino, and
587:is the only other designation.
3020:
2994:
2944:
2918:
2846:Federal Highway Administration
2842:FHWA Route Log and Finder List
2830:
1245:Almaden Boulevard, Vine Street
852:Federal Highway Administration
564:(after a former member of the
546:Spanish missions in California
1:
4041:Auxiliary Interstate Highways
2824:
2188:Sneath Lane, San Bruno Avenue
2109:San Bruno Avenue, Sneath Lane
2670:Mariposa Street, 18th Street
2376:Signed as exit 49 southbound
1067:
805:originally intended to do so
804:
654:and just to the east of the
570:Southern-Embarcadero Freeway
566:California State Legislature
491:auxiliary Interstate Highway
387:State highways in California
7:
3472:All Traffic Volumes on CSHS
2807:California Roads portal
2793:
2488:Geneva Avenue, Ocean Avenue
1789:Ralph D. Percival Memorial
1642:), Arastradero Road â
1338:Leigh Avenue, Bascom Avenue
1198:Signed as exit 1 northbound
1057:wildlife-vehicle collisions
1033:1989 Loma Prieta earthquake
992:, and I-480 (downgraded to
856:State Scenic Highway System
513:to King and 5th streets in
10:
4092:
3547:Freeways not built in S.F.
3542:California Highways: I-280
2624:San Francisco Civic Center
1922:South end of SR 35 overlap
1674:
1471:), Stevens Creek Boulevard
1102:
1097:
881:
4007:
3996:
3985:
3597:
3189:Scenic Highway Guidelines
2737:
2724:
2717:
2711:
2706:
2700:
2697:
2680:
2672:
2666:
2663:
2655:
2646:
2643:
2595:
2583:
2554:
2551:
2543:
2531:
2528:
2514:
2497:
2490:
2484:
2481:
2429:
2383:
2375:
2366:
2363:
2346:
2308:
2283:
2280:
2263:
2256:
2248:
2245:
2237:
2232:
2226:
2223:
2203:
2195:
2181:
2173:
2126:
2121:
2102:
2082:
2049:
2041:
2027:
2010:
2002:
1998:
1992:
1989:
1983:
1979:
1973:
1970:
1962:
1950:
1944:
1934:
1926:
1870:
1864:
1859:
1834:
1831:
1825:
1818:
1813:
1809:(northbound only; closed)
1802:
1797:
1786:
1781:
1777:
1771:
1768:
1762:
1748:
1741:
1735:
1732:
1725:
1711:
1708:
1700:
1696:
1688:
1685:
1679:
1670:
1661:
1658:
1652:
1647:
1631:
1628:
1622:
1618:
1616:El Monte Road, Moody Road
1612:
1609:
1601:
1597:
1591:
1588:
1582:
1578:
1565:
1562:
1554:
1549:
1524:
1521:
1510:
1504:
1501:
1494:
1488:
1485:
1477:
1473:
1460:
1457:
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1441:
1438:
1421:
1404:
1396:
1350:
1347:
1340:
1334:
1331:
1317:
1300:
1293:
1287:
1284:
1276:
1258:
1255:
1238:
1230:
1208:
1205:
1197:
1191:
1188:
1171:
1110:
1092:
1089:
1086:
1083:
1080:
1077:
1074:
1061:California Highway Patrol
908:Interstate Highway System
785:Crystal Springs Reservoir
699:Crystal Springs Reservoir
442:
351:Interstate Highway System
346:
341:
337:
319:
309:
299:
294:
290:
279:
145:
117:
112:
102:
84:
67:
59:
51:
46:
39:
23:
3532:AARoads â Interstate 280
3421:"State Truck Route List"
2776:
2765:
2753:
2744:
2372:Junipero Serra Boulevard
1195:11th Street, 10th Street
542:Spanish Franciscan friar
41:I-280 highlighted in red
3361:San Francisco Chronicle
3113:National Highway System
2636:; US 101 south exit 431
1445:Saratoga Avenue â
906:I-280 was added to the
848:National Highway System
812:now as a spur into the
767:Scenic portion of I-280
648:San Francisco Peninsula
521:for most of its route.
519:San Francisco Peninsula
71:September 15, 1955, by
4061:Roads in San Francisco
3214:Joseph Pierce Sinclair
1015:
962:, which served as the
903:
892:San Francisco Bay Area
870:, who founded many of
707:Yosemite National Park
554:Junipero Serra Freeway
538:Junipero Serra Freeway
495:San Francisco Bay Area
2370:John Daly Boulevard,
2230:Westborough Boulevard
1939:Doran Memorial Bridge
1162:Joe Colla Interchange
1046:Joe Colla Interchange
1041:1960 Chevrolet Impala
1013:
889:
872:California's missions
842:I-280 is part of the
738:Joe Colla Interchange
721:, completed in 1969.
719:Doran Memorial Bridge
620:Joe Colla Interchange
562:John F. Foran Freeway
3512:KML is from Wikidata
3434:on September 5, 2015
3344:on October 12, 2014.
3250:on October 10, 2022.
2270:Serramonte Boulevard
2089:Crystal Springs Road
1428:Winchester Boulevard
679:Santa Cruz Mountains
656:Santa Cruz Mountains
3400:. September 7, 2018
2848:. December 31, 2021
2651:Cesar Chavez Street
2421:City and County of
2197:South San Francisco
1739:Farm Hill Boulevard
1665:Alpine Road â
1570:Foothill Expressway
1465:Lawrence Expressway
1160:Southern terminus;
1029:parallel bay bridge
952:Golden Gate Freeway
846:and is part of the
754:Stanford University
711:Crystal Springs Dam
703:Hetch Hetchy Valley
697:provides a view at
664:South San Francisco
499:Northern California
483:Interstate 280
147:Major intersections
2620:James Lick Freeway
2576:James Lick Freeway
2504:Monterey Boulevard
2412:Golden Gate Bridge
1016:
964:US 101 Bypass
936:Golden Gate Bridge
904:
662:, passing through
558:James Lick Freeway
530:State Route 1
4018:
4017:
3338:InsideBayArea.com
3006:Los Angeles Times
2979:San Jose East, CA
2791:
2790:
2770:Incomplete access
2536:Alemany Boulevard
2471:, San Jose Avenue
1958:(northbound only)
1793:(northbound only)
1508:De Anza Boulevard
1272:Guadalupe Parkway
1178:McLaughlin Avenue
996:then), ending at
979:Alemany Boulevard
977:(San Jose Avenue/
928:Panhandle Freeway
687:San Andreas Fault
683:San Francisco Bay
614:Route description
509:(US 101) in
507:US Route 101
480:
479:
476:
475:
76:July 1, 1964, by
47:Route information
4083:
3991:
3990:
3591:
3585:
3584:Auxiliary routes
3576:
3569:
3562:
3553:
3552:
3502:
3475:
3465:
3459:
3458:
3450:
3444:
3443:
3441:
3439:
3433:
3416:
3410:
3409:
3407:
3405:
3389:
3381:
3372:
3371:
3369:
3367:
3352:
3346:
3345:
3340:. Archived from
3329:
3323:
3322:
3320:
3318:
3302:
3296:
3295:
3293:
3291:
3280:
3274:
3273:
3271:
3269:
3264:. Cahighways.org
3258:
3252:
3251:
3249:
3242:
3231:
3225:
3222:
3216:
3211:
3205:
3204:
3202:
3200:
3194:
3183:
3177:
3176:
3174:
3172:
3166:
3157:
3151:
3150:
3148:
3146:
3131:
3125:
3124:
3122:
3120:
3104:
3098:
3097:
3095:
3093:
3087:
3076:
3070:
3069:
3067:
3065:
3050:
3044:
3043:
3041:
3039:
3034:. March 14, 2010
3024:
3018:
3017:
3015:
3013:
2998:
2992:
2991:
2989:
2987:
2970:
2964:
2963:
2961:
2959:
2948:
2942:
2941:
2939:
2937:
2931:
2922:
2916:
2915:
2913:
2911:
2906:. Cahighways.org
2900:
2885:
2884:
2882:
2880:
2875:. Cahighways.org
2869:
2858:
2857:
2855:
2853:
2834:
2817:
2816:
2815:
2805:
2804:
2803:
2784:
2777:
2772:
2766:
2761:
2754:
2749:
2745:
2614:
2613:
2612:
2607:
2606:
2584:Southern end of
2570:
2569:
2568:
2563:
2562:
2459:
2458:
2457:
2452:
2451:
2446:
2445:
2440:
2439:
2402:
2401:
2400:
2395:
2394:
2329:
2328:
2327:
2322:
2321:
2299:
2298:
2297:
2292:
2291:
2253:Hickey Boulevard
2160:
2159:
2155:
2154:
2153:
2148:
2147:
2142:
2141:
2140:
2135:
2134:
2065:
2064:
2063:
2058:
2057:
1954:Crystal Springs
1908:
1907:
1906:
1901:
1900:
1895:
1894:
1889:
1888:
1887:
1882:
1881:
1842:
1841:
1821:Gate Vista Point
1719:
1718:
1595:Magdalena Avenue
1532:
1531:
1379:
1378:
1377:
1372:
1371:
1366:
1365:
1364:
1359:
1358:
1266:
1265:
1224:
1223:
1222:
1217:
1216:
1144:Bayshore Freeway
1134:
1133:
1129:
1128:
1127:
1122:
1121:
1072:
1071:
971:1964 renumbering
876:Sinclair Freeway
794:Bayshore Freeway
776:
764:
749:
733:
652:San Mateo County
472:
468:
467:
457:
453:
452:
444:
443:
265:
264:
251:
250:
237:
236:
223:
222:
209:
208:
195:
194:
177:
176:
172:
171:
158:
157:
148:
130:
129:
125:
124:
105:
94:
30:
21:
20:
4091:
4090:
4086:
4085:
4084:
4082:
4081:
4080:
4021:
4020:
4019:
4014:
4003:
3992:
3988:
3983:
3593:
3589:
3583:
3580:
3513:
3510:
3505:
3504:
3503:
3487:
3483:
3478:
3474:, 2005 and 2006
3466:
3462:
3451:
3447:
3437:
3435:
3427:
3417:
3413:
3403:
3401:
3387:
3383:
3382:
3375:
3365:
3363:
3353:
3349:
3330:
3326:
3316:
3314:
3304:
3303:
3299:
3289:
3287:
3281:
3277:
3267:
3265:
3260:
3259:
3255:
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3240:
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3228:
3223:
3219:
3212:
3208:
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3184:
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3168:
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3158:
3154:
3144:
3142:
3133:
3132:
3128:
3118:
3116:
3105:
3101:
3091:
3089:
3085:
3077:
3073:
3063:
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3035:
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3021:
3011:
3009:
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2999:
2995:
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2861:
2851:
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2835:
2831:
2827:
2813:
2811:
2801:
2799:
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2779:
2775:
2768:
2764:
2756:
2752:
2747:
2743:
2739:
2610:
2608:
2604:
2602:
2566:
2564:
2560:
2558:
2455:
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2449:
2447:
2443:
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2437:
2398:
2396:
2392:
2390:
2325:
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2319:
2317:
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2287:
2157:
2151:
2149:
2145:
2143:
2138:
2136:
2132:
2130:
2123:
2118:
2061:
2059:
2055:
2053:
2017:Millbrae Avenue
1996:Trousdale Drive
1928:San Mateo Creek
1904:
1902:
1898:
1896:
1892:
1890:
1885:
1883:
1879:
1877:
1839:
1723:(Woodside Road)
1716:
1603:Los Altos Hills
1529:
1375:
1373:
1369:
1367:
1362:
1360:
1356:
1354:
1321:Meridian Avenue
1263:
1220:
1218:
1214:
1212:
1131:
1125:
1123:
1119:
1117:
1070:
1020:The Embarcadero
884:
788:
777:
768:
765:
756:
750:
741:
734:
715:San Mateo Creek
644:Los Altos Hills
616:
532:(SR 1) in
528:in San Jose to
501:. It runs from
465:
463:
450:
448:
283:King Street in
275:
262:
248:
234:
220:
206:
192:
174:
169:
155:
146:
127:
122:
113:Major junctions
86:
75:
42:
35:
34:
31:
17:
12:
11:
5:
4089:
4079:
4078:
4076:JunĂpero Serra
4073:
4068:
4063:
4058:
4053:
4048:
4043:
4038:
4033:
4016:
4015:
4013:
4012:
4008:
4005:
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4002:
4001:
3997:
3994:
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3486:
3485:
3484:
3482:
3481:External links
3479:
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3226:
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3071:
3045:
3032:East Bay Times
3019:
3008:. May 13, 1988
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2556:
2553:
2550:
2546:
2545:
2542:
2540:Mission Street
2533:
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2527:
2523:
2522:
2519:
2516:
2513:
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2469:Mission Street
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1758:Entrances only
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1693:Sand Hill Road
1690:
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1678:
1672:
1671:
1669:
1667:Portola Valley
1663:
1660:
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1636:Page Mill Road
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930:just south of
883:
880:
868:JunĂpero Serra
827:in San Bruno,
790:
789:
778:
771:
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757:
751:
744:
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735:
728:
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615:
612:
478:
477:
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460:
458:
440:
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432:
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422:
420:Pre‑1964
417:
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407:
402:
397:
391:
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376:
371:
366:
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355:
354:
344:
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342:Highway system
339:
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317:
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280:North end
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118:South end
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40:
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33:Interstate 280
32:
25:
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15:
9:
6:
4:
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2:
4088:
4077:
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4069:
4067:
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4059:
4057:
4054:
4052:
4049:
4047:
4046:Interstate 80
4044:
4042:
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4037:
4034:
4032:
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4026:
4010:
4009:
4006:
3999:
3998:
3995:
3978:
3975:
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3696:
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3686:
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3677:
3674:
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3647:
3645:
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3617:
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3610:
3607:
3606:
3605:
3604:
3600:
3599:
3596:
3592:
3590:Interstate 80
3586:
3577:
3572:
3570:
3565:
3563:
3558:
3557:
3554:
3548:
3545:
3543:
3540:
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3509:
3500:
3496:
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3473:
3469:
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3449:
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3422:
3415:
3399:
3395:
3394:
3386:
3380:
3378:
3362:
3358:
3351:
3343:
3339:
3335:
3328:
3313:
3312:
3307:
3301:
3286:
3279:
3263:
3257:
3246:
3239:
3238:
3230:
3221:
3215:
3210:
3191:
3190:
3182:
3163:
3156:
3140:
3136:
3130:
3114:
3110:
3103:
3084:
3083:
3075:
3059:
3055:
3049:
3033:
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3023:
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3003:
2997:
2981:
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2969:
2953:
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2810:
2808:
2798:
2797:
2782:
2774:
2771:
2763:
2759:
2751:
2748:Closed/former
2742:
2741:
2736:
2730:Fourth Street
2721:
2710:
2693:
2676:
2659:
2653:, 25th Street
2652:
2639:
2635:
2629:
2625:
2621:
2617:
2591:
2587:
2581:
2577:
2573:
2547:
2541:
2537:
2524:
2510:
2493:
2477:
2470:
2467:north /
2466:
2462:
2424:
2423:San Francisco
2419:
2413:
2409:
2405:
2379:
2373:
2359:
2342:
2336:
2333:south â
2332:
2312:
2306:
2302:
2276:
2259:
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2240:
2236:
2219:
2216:
2198:
2194:
2177:
2171:
2167:
2163:
2115:
2098:
2095:
2078:
2072:
2068:
2044:
2040:
2023:
2005:
2001:
1982:
1965:
1961:
1957:
1943:
1940:
1929:
1925:
1919:
1918:Half Moon Bay
1915:
1911:
1863:
1857:
1856:Half Moon Bay
1853:
1849:
1845:
1824:
1812:
1808:
1796:
1792:
1780:
1775:Edgewood Road
1761:
1744:
1728:
1722:
1703:
1699:
1694:
1677:
1673:
1668:
1651:
1645:
1641:
1637:
1621:
1604:
1600:
1581:
1576:), Grant Road
1575:
1571:
1557:
1553:
1547:
1543:
1539:
1538:Mountain View
1535:
1517:
1514:
1497:
1480:
1476:
1470:
1466:
1453:
1448:
1434:
1417:
1400:
1394:
1390:
1387:south â
1386:
1383:north /
1382:
1343:
1327:
1313:
1296:
1280:
1273:
1269:
1251:
1234:
1228:
1201:
1184:
1167:
1163:
1157:
1153:
1152:San Francisco
1149:
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1137:
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1096:
1073:
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933:
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917:
916:San Francisco
913:
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826:
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732:
727:
724:
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637:
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621:
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582:
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563:
559:
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547:
543:
539:
535:
531:
527:
522:
520:
516:
515:San Francisco
512:
508:
504:
500:
496:
492:
488:
484:
471:
461:
459:
456:
446:
445:
441:
436:
433:
431:
428:
426:
425:Unconstructed
423:
421:
418:
416:
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406:
403:
401:
398:
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389:
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348:
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332:San Francisco
329:
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318:
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312:
308:
305:
304:United States
302:
298:
293:
289:
286:
285:San Francisco
282:
278:
272:
271:San Francisco
268:
260:
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254:
246:
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218:
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212:
204:
202:
198:
190:
188:
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180:
167:
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144:
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137:
133:
120:
116:
111:
107:
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98:
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83:
79:
74:
70:
66:
62:
58:
55:
50:
45:
38:
29:
22:
19:
3959:
3912:Pennsylvania
3910:
3865:
3846:
3807:
3768:
3756:
3737:
3718:
3701:
3682:
3670:
3618:
3601:
3488:
3463:
3448:
3436:. Retrieved
3425:the original
3414:
3402:. Retrieved
3391:
3366:November 14,
3364:. Retrieved
3360:
3350:
3342:the original
3337:
3327:
3315:. Retrieved
3311:FamilySearch
3309:
3300:
3288:. Retrieved
3278:
3268:February 21,
3266:. Retrieved
3256:
3245:the original
3236:
3229:
3220:
3209:
3197:. Retrieved
3188:
3181:
3169:. Retrieved
3155:
3143:. Retrieved
3138:
3129:
3117:. Retrieved
3112:
3102:
3090:. Retrieved
3081:
3074:
3062:. Retrieved
3057:
3048:
3038:September 5,
3036:. Retrieved
3031:
3022:
3012:September 5,
3010:. Retrieved
3005:
2996:
2986:November 11,
2984:. Retrieved
2978:
2968:
2956:. Retrieved
2946:
2934:. Retrieved
2920:
2910:February 21,
2908:. Retrieved
2877:. Retrieved
2850:. Retrieved
2841:
2832:
2778:
2767:
2755:
2746:
2704:Fifth Street
2687:Sixth Street
2634:Alemany Maze
2586:Alemany Maze
1964:Hillsborough
1277:SR 87 exit 5
1090:Destinations
1050:
1037:
1017:
1002:
987:
968:
960:Alemany Maze
905:
875:
841:
822:
818:Alemany Maze
798:
791:
691:Hillsborough
672:
617:
589:
579:. I-110 in
574:
569:
561:
553:
540:, after the
537:
523:
486:
482:
481:
385:
349:
108:Entire route
18:
3404:October 21,
3145:February 6,
3064:February 6,
2958:January 26,
2879:January 26,
2758:Concurrency
2715:King Street
2616:US 101
2572:US 101
2408:19th Avenue
2166:US 101
1791:Vista Point
1755:Cañada Road
1291:Bird Avenue
1156:Los Angeles
1140:US 101
1099:Santa Clara
994:SR 480
985:standards.
948:US 101
944:Doyle Drive
752:I-280 near
632:Santa Clara
624:US 101
470:SR 281
455:SR 275
324:Santa Clara
267:US 101
136:US 101
4025:Categories
3961:New Jersey
3603:California
3290:October 5,
3171:August 19,
3092:August 19,
2825:References
2783:transition
2628:Bay Bridge
2461:SR 82
2067:SR 35
1914:SR 92
1910:SR 35
1844:SR 92
1721:SR 84
1542:Santa Cruz
1534:SR 85
1492:Wolfe Road
1393:Santa Cruz
1385:SR 17
1268:SR 87
1227:SR 82
1148:Sacramento
1025:ramp stubs
990:SR 87
975:SR 82
864:SR 17
829:SR 92
675:SR 85
604:Apple Maps
581:California
395:Interstate
314:California
225:SR 92
211:SR 84
197:SR 85
183:SR 17
160:SR 87
2936:March 27,
2622:) â
2578:) â
2465:SR 1
2410:) â
2404:SR 1
2331:SR 1
2301:SR 1
2239:Daly City
2043:San Bruno
1956:Rest Area
1912:south to
1848:San Mateo
1807:rest area
1676:San Mateo
1644:Palo Alto
1556:Los Altos
1479:Cupertino
1146:) â
1068:Exit list
1059:based on
1051:In 2021,
920:SR 1
914:north to
833:San Mateo
668:Daly City
660:San Bruno
640:Los Altos
636:Cupertino
608:Cupertino
602:built-in
550:San Diego
534:Daly City
364:Auxiliary
328:San Mateo
257:Daly City
253:SR 1
243:San Bruno
229:San Mateo
201:Cupertino
97:San Bruno
4011:Proposed
3848:Illinois
3770:Nebraska
3757:Colorado
3750:Business
3731:Business
3695:Business
3664:Business
3490:KML file
3438:June 30,
3430:XLS file
3317:April 8,
2794:See also
2760:terminus
2580:San Jose
2335:Pacifica
2305:Pacifica
2168: â
2164:east to
2071:Pacifica
2004:Millbrae
1846: â
1702:Woodside
1536: â
1447:Saratoga
1104:San Jose
1078:Location
1005:Woodside
912:San Jose
511:San Jose
435:Freeways
374:Business
369:Suffixed
320:Counties
295:Location
215:Woodside
187:San Jose
181: /
164:San Jose
140:San Jose
134: /
80:âpresent
78:Caltrans
54:Caltrans
3739:Wyoming
3199:June 8,
3119:July 1,
2852:July 3,
2618:north (
2574:south (
2406:north (
1984:
1945:
1865:
1852:Hayward
1826:
1814:
1805:Former
1798:
1782:
1763:
1680:
1653:
1623:
1583:
1511:Former
1389:Oakland
983:freeway
969:In the
950:), the
896:Vallejo
882:History
809:planned
695:Belmont
585:Florida
493:in the
430:Deleted
415:History
300:Country
85:Tourist
68:Existed
4000:Former
3890:-->
3684:Nevada
3671:Oregon
3165:(XLSX)
2930:(XLSX)
2215:SR 117
2122:68.80â
2117:42.75â
2094:SR 117
1546:Gilroy
1075:County
932:Fulton
642:, and
410:Scenic
379:Future
87:routes
60:Length
3702:Idaho
3388:(PDF)
3248:(PDF)
3241:(PDF)
3193:(PDF)
3086:(PDF)
2781:Route
2698:91.70
2695:56.98
2681:91.30
2678:56.73
2664:90.19
2661:56.04
2644:88.61
2641:55.06
2596:86.55
2593:53.78
2552:86.55
2549:53.78
2529:84.84
2526:52.72
2515:83.91
2512:52.14
2498:83.90
2495:52.13
2482:82.41
2479:51.21
2430:80.76
2427:50.18
2384:79.13
2381:49.17
2364:78.07
2361:48.51
2347:76.89
2344:47.78
2281:76.11
2278:47.29
2264:75.37
2261:46.83
2246:74.35
2243:46.20
2224:71.83
2221:44.63
2204:70.89
2201:44.05
2182:69.23
2179:43.02
2162:I-380
2124:69.23
2119:43.02
2103:68.80
2100:42.75
2083:68.04
2080:42.28
2050:66.45
2047:41.29
2028:65.23
2025:40.53
2011:63.84
2008:39.67
1990:63.04
1987:39.17
1971:58.32
1968:36.24
1951:57.02
1948:35.43
1935:56.76
1932:35.27
1871:55.25
1868:34.33
1832:52.85
1829:32.84
1769:46.12
1766:28.66
1749:46.03
1746:28.60
1733:42.89
1730:26.65
1709:40.78
1706:25.34
1686:38.01
1683:23.62
1659:35.41
1656:22.00
1640:CR G3
1629:31.80
1626:19.76
1610:26.44
1607:16.43
1589:24.91
1586:15.48
1574:CR G5
1563:20.65
1560:12.83
1522:19.51
1519:12.12
1513:SR 85
1502:17.41
1499:10.82
1486:15.71
1469:CR G2
1458:13.70
1439:11.80
1381:I-880
1136:I-680
1093:Notes
940:I-480
900:I-780
837:I-880
825:I-380
781:SR 92
725:I-280
628:I-680
622:with
600:macOS
592:Apple
548:from
526:I-880
524:From
503:I-680
487:I-280
405:State
310:State
239:I-380
227:near
179:I-880
132:I-680
3899:480N
3867:Ohio
3809:Iowa
3720:Utah
3712:180N
3499:help
3495:edit
3440:2015
3406:2020
3368:2021
3319:2014
3292:2014
3270:2020
3201:2017
3173:2017
3147:2019
3121:2012
3094:2017
3066:2019
3040:2019
3014:2019
2988:2020
2960:2013
2938:2019
2912:2020
2881:2013
2854:2022
1483:9.76
1455:8.51
1436:7.33
1422:9.58
1419:5.95
1405:8.71
1402:5.41
1348:8.71
1345:5.41
1332:8.03
1329:4.99
1318:6.42
1315:3.99
1301:6.24
1298:3.88
1285:4.63
1282:2.88
1256:4.06
1253:2.52
1239:3.54
1236:2.20
1206:2.49
1203:1.55
1189:2.08
1186:1.29
1172:0.58
1169:0.36
1111:0.00
1108:0.00
1087:Exit
998:I-80
924:I-80
801:I-80
666:and
598:and
583:and
505:and
359:Main
73:FHWA
3977:680
3972:280
3967:80S
3953:680
3948:480
3943:380
3938:280
3933:180
3928:180
3923:80S
3918:80N
3904:680
3894:480
3888:380
3883:280
3878:80S
3873:80N
3859:280
3854:180
3840:880
3835:680
3830:480
3825:380
3820:280
3815:80N
3801:680
3796:580
3791:480
3786:280
3781:180
3776:80S
3762:80S
3745:180
3726:80N
3707:80N
3690:580
3676:80N
3659:980
3654:880
3649:880
3644:780
3639:680
3634:580
3629:480
3624:380
3619:280
3614:238
3609:180
3587:of
2599:54B
2555:54A
2463:to
2387:49B
2367:49A
2314:47B
2267:47A
2185:43B
2106:43A
831:in
705:in
693:to
650:in
596:iOS
594:'s
497:of
269:in
255:in
241:in
213:in
199:in
185:in
162:in
138:in
104:NHS
4027::
3497:âą
3470:,
3396:.
3390:.
3376:^
3359:.
3336:.
3308:.
3137:.
3111:.
3056:.
3030:.
3004:.
2889:^
2862:^
2844:.
2840:.
2684:57
2667:56
2647:55
2626:,
2538:,
2532:53
2501:52
2485:51
2433:50
2350:48
2284:47
2249:46
2227:45
2207:44
2127:43
2086:42
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