Interstate 680 (California)

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Route 680

Length:

71 mi (114.2 km)

Formed:

Major cities:

San Jose

Milpitas
Fremont
Pleasanton
Walnut Creek
Concord
Fairfield

Direction:

North-South

JUNCTION	POSTMILE
I-280	SCL 0.00
U.S. Route 101	SCL 0.00
SR-130	SCL 1.74
SR-237	SCL 7.64
SR-262	ALA 2.39
SR-238	ALA 6.39
SR-84	ALA 11.04
SR-84	ALA 11.85
I-580	ALA 20.04
SR-24	CC 14.38
SR-242	CC 18.71
SR-4	CC 21.19
I-780	SOL 0.68
I-80	SOL 13.13

California State Routes Unconstructed - Deleted - Scenic
< Route 605	Route 710 >

Interstate 680/State Route 24 interchange in Walnut Creek; I-680 is running right to left.

Interstate 680 (abbreviated I-680) in California is a busy north-south freeway in the San Francisco Bay Area. I-680 spans just over 70 miles (113.4 km) from its northern terminus in Fairfield, to its southern terminus in San Jose.

I-680 succeeded State Route 21 as the primary Benicia-Fremont highway in the mid-1960s. At that time, I-680 was constructed between the newly truncated Route 21's terminus in Benicia and Interstate 80 (née US 40) in Vallejo. In 1976, that segment became Interstate 780, and the 680 designation was moved to the last remaining portion of Route 21, which connected Benicia to the Cordelia Junction in Fairfield. This effectively established 680 as the outer East Bay's main connection to the North Bay (the Solano County Portions of the Freeway in Fairfield and Benicia) and to northern areas of the Central Valley, including Sacramento.

The portion of 680 from Alamo to Sunol is very close to the Calaveras Fault, and structures along and over the freeway may sustain significant damage in the event of a major earthquake on the Calaveras Fault.

1 Control cities
2 Major cities
3 Intersections With Other Interstates
4 Freeway Designations
5 State law
6 Exit list
7 References
8 See also
9 External links

[edit] Control cities

Northbound

Sacramento - Whole route

Southbound

San Jose - between I-80 and the San Jose city limits
Downtown San Jose - between the San Jose city limits and the US 101/I-280 interchange

[edit] Major cities

[edit] Intersections With Other Interstates

[edit] Freeway Designations

Sinclair Freeway -- designation continues from I-280 in San Jose to I-580 in Dublin/Pleasanton or the Santa Clara/Alameda County line
Luther Gibson Freeway -- from Benicia-Martinez Bridge over Carquinez Strait to the I-80 terminus

[edit] State law

Legal Definition of Route 680: California Streets and Highways Code, Chapter 2, Article 3, Section 620

[edit] Exit list

Postmile^[1]		Municipality	#^[2]	Destinations	Notes
County	Statewide	Municipality	#^[2]	Destinations	Notes
SCL 0.00	0.00	San José	1A	Interstate 280 - Downtown San José	Southbound left exit and northbound entrance
SCL 0.00	0.00		1B	U.S. Route 101 - Los Angeles; San Francisco	Southbound exit and northbound entrance
SCL M0.38	0.38		1A	King Road	Exit 1C southbound
			1B	Jackson Avenue	Northbound exit and southbound entrance
SCL M1.41	1.41		1C	Capitol Expressway (County Route G21)	Exit 1D southbound
SCL M1.74	1.74		2A	Alum Rock Avenue (State Route 130)
SCL M2.38	2.38		2B	McKee Road
SCL M3.84	3.84		4	Berryessa Road
SCL M4.79 SCL M5.07	4.79 5.07		5	Capitol Avenue; Hostetter Road	Split into Exit 5A (Hostetter Rd) and Exit 5B (Capitol Ave) northbound
SCL M6.17 SCL M6.18	6.17 6.18	Milpitas	6	Landess Avenue; Montague Expressway (County Route G4)
SCL M7.64	7.64		8	State Route 237 west - Milpitas; Calaveras Boulevard
SCL M8.50	8.50		9	Jacklin Road
ALA M0.13	10.06	Fremont	10	Scott Creek Road; Warm Springs District
ALA M2.39	12.32		12	() To ; Interstate 880; Mission Boulevard (State Route 262)
ALA M4.02	13.95		14	Durham Road; Auto Mall Parkway
ALA M5.37	15.30		15	Washington Boulevard; Irvington District
ALA R6.39	16.32		16	State Route 238 - Hayward; Mission Boulevard
ALA R7.48	17.41		18A	Vargas Road	Exit 18 southbound
ALA R8.31	18.24		18B	Sheridan Road	Combined with exit 20 southbound, accessible via Mission Rd
ALA R9.71	19.64		20	Andrade Road
ALA R11.04	20.97		21A	State Route 84 west - Calaveras Road; Sunol
ALA R11.85	21.78		21B	State Route 84 east - Livermore
ALA R12.44	22.37		22	Sunol Road (Pleasanton-Sunol Road; Koopman Road)	Southbound exit and northbound entrance
ALA R15.26	25.19	Pleasanton	25	Sunol Boulevard; Castlewood Drive (Pleasanton-Sunol Road)
ALA R16.75	26.68		26	Bernal Avenue
ALA R19.30	29.23		29	Stoneridge Drive
ALA R20.04	29.97	Dublin	30	Interstate 580 - Oakland; Stockton
ALA R20.39	30.32	Dublin		Dublin Boulevard	No northbound exit
CC R0.01	31.82	San Ramon	31	Alcosta Boulevard
CC R2.88	34.69		34	Bollinger Canyon Road
CC R4.18	35.99		36	Crow Canyon Road
CC R6.76	38.57	Danville	38	Sycamore Valley Road
CC R7.55	39.36		39	Diablo Road
CC R8.18	39.99		40	El Cerro Boulevard
CC R8.75	40.56		41	El Pintado Road	Southbound exit and northbound entrance
CC R10.37	42.18		42A	Stone Valley Road - East
CC R10.37	42.18		42B	Stone Valley Road - West
CC R11.28	43.09		43	Livorna Road
CC R12.61	44.42	Walnut Creek	44	Rudgear Road	Northbound exit and southbound entrance; northbound entrance accessible via Danville Boulevard
CC 13.08	44.89		45	South Main Street	Exit 45A northbound; No northbound entrance
CC 13.93	45.74		45B	Olympic Boulevard
CC 14.38	46.19		46A	State Route 24 west - Lafayette; Oakland
CC 14.85	46.66		46B	Ygnacio Valley Road	Northbound exit and southbound entrance
CC 15.61	47.42		47	North Main Street	Southbound exit and northbound entrance accessible via San Luis Road; Northbound exit accessible via Pinneman Way; Northbound entrance accessible via Lawrence Way and/or Pinneman Way
CC 16.40	48.21		48	Treat Boulevard; Geary Road	Southbound exit and entrance accessible via North Main Street; Northbound entrance accessible via Bushkirk Avenue and/or Oak Road
CC R17.40 CC R17.44	49.21 49.25	Pleasant Hill	49A	Contra Costa Boulevard	Northbound exit and southbound entrance
CC R17.70	49.51		49B	Monument Boulevard	Northbound exit
CC R17.70	49.51		49	Monument Boulevard; Gregory Lane	Southbound exit
CC R18.71	50.52	Concord	50	State Route 242 - Pittsburg	Northbound exit and southbound entrance
CC 19.04	50.85		51	Willow Pass Road
CC 19.86	51.67		52	Concord Avenue; Burnett Avenue; Chilpancingo Parkway	Southbound exit via Contra Costa Boulevard
CC 21.19	53.00		53	State Route 4 - EAST: Pittsburg; Antioch - WEST: Martinez; Hercules
CC 22.70	54.51		54	Pacheco Boulevard; Arthur Road
CC 24.26	56.07		56	Marina Vista
Benicia-Martinez Bridge (toll northbound)
SOL M0.68	57.95	Benicia	58A	Interstate 780 - Benicia; Vallejo	Left exit northbound
SOL R1.00	59.39		58B	Bayshore Road; Industrial Park	Northbound exit and southbound entrance
SOL R1.00	59.39		60	Industrial Park (Industrial Way)	Southbound exit and northbound entrance
SOL R2.82	61.21		61	Lake Herman Road
SOL R5.02	63.41		63	Parish Road	Road serves to bridge frontage roads Lopes Road and Goodyear Road
SOL R7.32	65.71		65	Marshview Road	road serves to bridge frontage roads Lopes Road and Goodyear Road
SOL R10.02	68.41	Fairfield	68	Gold Hill Road
SOL 12.63	71.02		70	Cordelia; Green Valley Road	Northbound exit only; Southbound entrance accessible via the I-80 eastbound entrance from Lopes Road
SOL 13.13	71.52		71A	Interstate 80, State Route 12 east - Sacramento	Northbound exit and southbound entrance
SOL 13.13	71.52		71B	Interstate 80, State Route 12 west - Napa; San Francisco	Northbound exit and southbound entrance

[edit] References

[edit] See also

Benicia-Martinez Bridge

[edit] External links

Route 680 is part of the Scenic Highway System, as stated by section 263.8 of the California State Highway Code.

	edit Auxiliary routes of Interstate 80
I-180	Illinois - Nebraska - Pennsylvania - Wyoming
I-280	California - Illinois/Iowa - New Jersey - Ohio
I-380	California - Iowa - Pennsylvania
I-480	Iowa/Nebraska - Ohio
I-580	California - Nevada
I-680	California - Iowa/Nebraska - Ohio
I-780	California
I-880	California
I-980	California
past/ future	I-180: California - Pennsylvania - I-280: Iowa/Nebraska - Pennsylvania - I-480: California - Pennsylvania - I-580: Nebraska - I-680: Pennsylvania