Interstate 80 in California

Interstate 80
Route information
Defined by Streets and Highways Code § 380
Maintained by Caltrans
Length:	205.07 mi[1] (330.03 km)
History:	Proposed August 7, 1947 by FHWA[2] Federally designated June 26, 1956 Signed July 1, 1964 by Caltrans[3]
Restrictions:	No flammable tank vehicles or explosives on the Bay Bridge[4]
Major junctions
West end:	US 101 in San Francisco
	I-580 / I-880 in Oakland SR 4 in Hercules I-780 in Vallejo I-680 in Fairfield I-505 in Vacaville US 50 / I-80 Bus. in West Sacramento I-5 / SR 99 in Sacramento I-80 Bus. in Sacramento SR 49 in Auburn SR 89 in Truckee
East end:	I‑80 at Nevada state line
Highway system
Interstate Highway System Main Auxiliary Suffixed Business State highways in California Interstate U.S. State Pre-1964 History Unconstructed Deleted Freeway Scenic ← SR 79 US 80 →

Interstate 80 (I-80) is a major east–west route of the Interstate Highway System, running between the U.S. states of California and New York. The highway has its western terminus in San Francisco. From there it heads east across the Bay Bridge to Oakland, where it turns north and crosses the Carquinez Bridge before turning back northeast through the Sacramento Valley. I-80 then traverses the Sierra Nevada, cresting at Donner Summit, before crossing into the state of Nevada within the Truckee River Canyon. The speed limit is 65 miles per hour (105 km/h) along the entire route instead of the state's maximum of 70 mph (110 km/h) and most of the route is in either urban areas or mountainous terrain. I-80 has portions designated as the Eastshore Freeway and Alan S. Hart Freeway.

Throughout California, I-80 was built along the corridor of U.S. Route 40 (US 40), eventually replacing this designation entirely. The prior US 40 corridor itself was built along several historic corridors in California, notably the California Trail and Lincoln Highway. The route has changed from the original plans in San Francisco due to freeway revolts canceling segments of the originally planned alignment. Similarly in Sacramento, the freeway was re-routed around the city after plans to upgrade the original grandfathered route through the city to Interstate highway standards were cancelled.

Route description

I-80 is recognized as the Dwight D. Eisenhower Highway in the western United States and a Blue Star Memorial Highway for its entire length. In California, it follows the original corridor of the Lincoln Highway from Sacramento to Reno (with minor deviations near Donner Summit). I-80 is also known as the Kent D. Pursel Memorial Freeway from the Bay Bridge to the Alameda/Contra Costa County line (named after a former Alameda County Board of Supervisor), the Linus F. Claeys Freeway from State Route 4 (SR 4) to the Carquinez Bridge (after a Contra Costa County businessman and philanthropist), the Alan S. Hart Freeway from the Sacramento/Placer County line to the Nevada state line (named after a California Department of Transportation, Caltrans, engineer who oversaw the modernization of this segment of I-80), and the Dutch Flat and Donner Lake Wagon Road from Emigrant Gap to Donner Lake.^[5]

San Francisco Bay Area

The western terminus of Interstate 80 in San Francisco, viewed from northbound US 101.

According to the California State Highway system, I-80 begins at its intersection with U.S. Route 101 in San Francisco. However, the San Francisco Skyway (officially known to Caltrans as the Bayshore Viaduct), the elevated freeway that runs from this junction of the James Lick Freeway and the Central Freeway to the Western Approach of the San Francisco–Oakland Bay Bridge at 4th Street, may not be officially part of the Interstate Highway System, although it is consistently shown as I-80 on most maps of San Francisco. The Interstate designation is interpreted by some to actually beginning on the Bay Bridge approach itself, at the location of the Fremont Street off-ramp (previously known as the Terminal Separator Structure (TSS) that once connected it to the Embarcadero Freeway). Thus, the first 1.20 miles (1.93 km) of the signed Interstate may not be officially an actual Interstate, and is secretly defined as State Route 80.^[6][7]

Eastshore Freeway

The Eastshore Freeway is a segment of Interstates 80 and 580 along the northeast shoreline of San Francisco Bay in northern California. It begins at the Carquinez Bridge and ends at the MacArthur Maze interchange just east of the eastern end of the San Francisco–Oakland Bay Bridge. Interstate 580 joins the Eastshore Freeway at an interchange known locally as "Hoffman Split" in Albany. The section of the Eastshore Freeway between the MacArthur Maze and the 580 (Hoffman) split between Albany is a wrong-way concurrency where the northbound direction is signed as I-80 East and I-580 West, while the southbound direction is signed as westbound I-80 and eastbound I-580.

Eastshore Freeway in Berkeley

The Eastshore Freeway was created in the mid 1950s (construction commenced in 1954) by re-engineering the Eastshore Highway, a thoroughfare constructed in the 1930s (1937–39) as one of the approaches to the Bay Bridge and designated as part of U.S. Route 40.^[8] The Eastshore Highway began in El Cerrito at an intersection with San Pablo Avenue at Hill Street between Potrero Avenue and Cutting Blvd., adjacent to the location today of the El Cerrito Del Norte station of BART. It was not a freeway in that access was at intersections with adjoining streets rather than by ramps. The Eastshore Highway ran from El Cerrito to the Bay Bridge along the same routing as today's freeway, although it was much narrower. A causeway was constructed for this purpose by filling in part of the mudflats along the bayshore. In the stretch from University to Ashby Avenues in Berkeley, this resulted in the creation of an artificial lagoon which was developed by the Works Progress Administration in the late 1930s as "Aquatic Park".

The frontage road along the east side of today's Eastshore Freeway between Buchanan Street in Albany and Hearst Avenue in Berkeley retains the name "Eastshore Highway", which is a former segment of US 40. The terminal segment of the old Eastshore Highway in El Cerrito between Potrero and San Pablo Avenues is today named "Eastshore Boulevard".

Originally, the name "Eastshore Freeway" was also applied to what is today known as the "Nimitz Freeway" (I-880) upon its construction in 1947. This freeway was dedicated in 1958 to Admiral Nimitz, and so for a few years in the 1950s prior, the Eastshore Freeway stretched the entire length of the east shore of San Francisco Bay. Until the late 1960s, the Eastshore Freeway was also designated as part of State Route 17 (SR 17) together with the Nimitz Freeway.

The Eastshore Freeway was officially renamed the "Kent D. Pursel Memorial Freeway"^[5] in 1968, after a former member of the Alameda County Board of Supervisors.^[9] But this name is hardly recognized as such by the public, and most maps still show the name "Eastshore Freeway".

The interchange where I-580 joins I-80 is still known locally as the "Hoffman Split", an allusion to the time before the I-580 freeway replaced Hoffman Boulevard as the highway leading to the Richmond-San Rafael Bridge. The same interchange today also serves the Buchanan Street exit in Albany.

The section of the Eastshore Freeway between the MacArthur Maze and the I-80/I-580 split suffers from severe traffic congestion during rush hour due to the merger of three freeways (I-80, I-580, and I-880) at the MacArthur Maze.

Central Valley

This section of I-80 has a top speed of 65 miles per hour (105 km/h), unlike California's top speed limit of 70 mph (110 km/h), common in rural freeways.^[10] I-80 is a six- to eight-lane freeway with carpool lanes in Fairfield from exit 39A (Red Top Road) to exit 47 (Air Base Parkway).^[11]

I-80 has changed routing in the Sacramento area. Currently, the freeway runs on a northern bypass of the city, the Beltline Freeway, that was originally designated I-880. The I-80 routing alignment was moved from a route through Sacramento, now I-80 Business, after the proposed I-80 replacement of the North Sacramento Freeway was canceled. The Beltline Freeway runs northeast from the junction of I-80 and I-80 Business (U.S. Route 50 there) in West Sacramento across I-5 to its junction northeast of Sacramento with I-80 Business (which is SR 51). SR 244 heads east as a short freeway spur from that interchange.

Sierra Nevada

Looking NE along I-80 in the Sierra Nevada from the Yuba Gap overpass 39°19′01″N 120°36′50″W / 39.317°N 120.614°W

Crossing the Sierra Nevada, I-80 regularly gets snow at higher elevations from fall to spring. Caltrans sometimes requires vehicles to use snow tires, snow chains or other traction devices in the mountains during and after snowstorms.^[12] Checkpoints are often set up to enforce chain restrictions on vehicles bound for icy or snowy areas. When chain restrictions are in effect vehicles must have chains on the driving wheels, except 4WD vehicles with snow tires.^[13] Additionally, during the winter season, trucks are required to carry chains whether or not controls are in force.

Sign for Donner Summit

Entering California from Nevada along I-80

I-80 crosses the Sierra Nevada crest at Donner Summit (also known as Euer Saddle) at an elevation of 7,239 feet (2,206 m) westbound and 7,227 feet (2,203 m) eastbound. The Donner Summit Rest Area is located at this point.^[14] The summit is located in Nevada County, California. The pass is generally open year-round; it is plowed in winter, but may temporarily close during the worst snowstorms. The older, original US 40/Lincoln Highway route over Donner Pass is about two miles (3 km) to the south. This highway was replaced as the official trans-Sierra route by I-80 in 1964. Although the current Donner Pass is lower, Euer Saddle was chosen for the interstate because of more gradual approaches.

History

Historic routing

A sign in California recognizing an old alignment of US 40

U.S. Route 40
Location:	San Francisco–Nevada state line
Existed:	1926–1964

In California, I-80 was built along the corridor of, and eventually replaced, U.S. Route 40. The US 40 designation was eliminated in the state as part of the 1964 state highway renumbering. US 40 was one of the original California routes designed in 1926, although its western terminus was in Berkeley, California with US 101E (then SR 17, then I-5W, now I-580/I-880) prior to the San Francisco–Oakland Bay Bridge construction in 1934. A ferry ran from there to San Francisco. After the Bay Bridge's construction, US 40, along with US 50, were extended along the bridge to connect with US 101.^[15]

US 40 and US 50 ran concurrently along the Bay Bridge and the routes split on what is the present day MacArthur Maze in Oakland, California. US 50 continued southwest on present-day I-580 to Stockton and US 40 closely followed the route of present-day I-80. When reaching Sacramento, California, US 40 and US 50 rejoined once again, US 50 running concurrently with former US 99 from Stockton to Sacramento. US 40 then again split with US 50 in Downtown Sacramento and closely followed the route of present-day Business I-80, which was I-80 from 1957 to 1981, when I-80 was realigned along former I-880, routing along the what was then the outskirts of Sacramento. US 40 then closely followed I-80 through the Sierra Nevada Range into Nevada.

A portion of old US 40 near Donner Lake is still fully intact and is an alternate route of I-80.^[16] It begins near Soda Springs and ends at Truckee, California. At one point, it travels right by Donner Lake, unlike I-80, which spans higher in the Sierra Nevada Range north of historic US 40.

Construction

Original routing in San Francisco

The Panhandle Freeway was in the 1948 SF Freeways plan.

When I-80 was first approved, it was to begin at planned I-280 (SR 1) in Golden Gate Park, head east on the never-built Panhandle Freeway, then run south and southeast on the Central Freeway (US 101) to the San Francisco Skyway. The Panhandle Freeway was to be routed through Hayes Valley, passing through Golden Gate Park and terminating at proposed I-280, now SR 1.^[17] In 1964, community oppositions forced CalTrans to abandon the Panhandle Freeway project. A January 1968 amendment moved I-280 to its present alignment, degraded Interstate 480, to a state highway, and truncated the origin point of I-80 to the Embarcadero Freeway (then I-280, formerly I-480).^[2] Prior to that truncation, I-80 had been defined as from "Route 280 in San Francisco to the Nevada state line near Verdi, Nevada, passing near Division Street in San Francisco, passing near Oakland, via Albany, via Sacramento, passing near North Sacramento, passing near Roseville, via Auburn, via Emigrant Gap, via Truckee and via the Truckee River Canyon," and certain maps had been shown of I-80 running concurrently with US 101 to Fell Street.^[18] These changes were made on the state level later that year, but Route 80 was only truncated to US 101. (The Central Freeway remained part of US 101, and the Panhandle Freeway became State Route 241. The Panhandle Freeway was later cancelled in the wake of the Freeway Revolts, and the State Route 241 designation has since been reassigned to an unrelated stretch of highway in Orange County) The San Francisco Skyway, which had already been signed as part of I-80, has remained a de facto section of I-80 to the present day and remains listed as part of the Interstate in California.

In 2000, the San Francisco Chronicle published an article about the proposed construction of a new freeway through San Francisco. According to the article, the suggested 19th Avenue tunnel would run five miles (8.0 km), from Junipero Serra Boulevard through Golden Gate Park and up to Lake Street, with exits at Brotherhood Avenue, Ocean Avenue, Quintara Street, Lincoln Way, and Geary Boulevard.^[19] The Van Ness tunnel would run almost two miles (3.2 km), from about Fell Street to Lombard Street, with exits at Broadway and Geary Boulevard. Along Oak and Fell, the planners suggested an underground road running more than half a mile (0.8 km) from Laguna to Divisadero streets. However, the roads would violate the long-standing general plan for San Francisco, which calls for no new highway capacity. On March 2015, this proposed route was adopted by the CTC.^[18]

Legacy

Prior to the construction of I-80, the US 40 corridor had frequent car accidents. Reasons for this was of the many traffic lights and out-of-nowhere stop signs. Specifically, five interchanges were listed with a high accident rate when CalTrans claimed that the construction of the I-80 freeway would reduce the accidents. According to a study done on I-80 in Vallejo from 1955 and 1956, prior to the freeway construction, and 1957 and 1958, after the freeway was constructed, the accident rate dropped 73% and there were 245 fewer accidents on the then-new I-80 freeway.^[20]

The new route also made traveling in the Sierra Nevada Range much easier. Before construction, US 40 was a two-lane road with winding turns.^[21] This route was often closed in the winter because of the high elevation of the Donner Pass (7239 feet), and drivers had to use a much longer route to the north, US 40 ALT, now SR 70 using the Beckwourth Pass, at an elevation of 5221 ft.^[22] After the construction, driving was easier through the Sierra Nevada Range via I-80 and the pass was only closed to intense snowstorms.

Truncation of US 40

In 1964, Calrans desired to reduce the amount of routes in the California state highways system.^[23] The Interstate Highway system, designed and built starting in 1956, was adding on to the already increased number of U.S. Routes and state highways.^[24] In result, the 1964 renumbering truncated US 50 to West Sacramento. The entire route of US 40 was deleted in the western United States due to the completion of I-80. ^[24] Also, the number "40" was duplicated along I-40, at that time, a newly built route in southeastern California. I-40 was to be numbered I-30, but the American Association of State Highway and Transportation Officials (AASHTO) rejected the numbering. ^[25]

The state law authorizing the renumbering was passed on September 20, 1963. Signage changes took place by July 1, 1964, and US 40 was decommissioned.^[23] US 40 was one of the first US Routes to be decommissioned completely in California.^[26]

Former alignments in Sacramento

Interstate 880
Location:	West Sacramento–Sacramento
Existed:	1971–1983

In the Sacramento area, I-80 has been realigned to many routes.^[18] In 1964, I-80 used the old US 40/99E freeway, the current I-80 BUS, while a year later, I-80 was proposed to be realigned along a new freeway that'll run south of the former I-80/I-880 northeast of Sacramento, run to south of the American River, and rejoin I-80. This was needed because the 1964 I-80 didn't meet Interstate standards.^[18]

In 1972, I-880 was completed, while a part of the new alignment of I-80 was completed but not open to traffic, where there was a long bridge to nowhere.^[27] From 1972 to 1980, Interstate 880 began in West Sacramento as a fork from the original I-80, continues northeast over the Sacramento River to its interchange with I-5, continues east through the communities of North Sacramento and Del Paso Heights and ends at an interchange with the Roseville Freeway (I-80). The now-designated Capital City Freeway was then the original I-80 routing, continuing southwest directly into downtown Sacramento. I-80 was then re-routed along the Beltline Freeway in 1983, while the Capital City Freeway became I-80 Business, also I-305 and SR 51. I-880 would have intersected SR 244 and then US 50, but in 1979, the Sacramento City Council voted to delete the proposed I-80 alignment for rail transit. The constructed 244/51/80 split is now used for three railroad stations. In 1980, the new I-80 alignment was deleted from the Interstate system. SR 244 was then truncated from its proposed alignment to the only freeway section of the abandoned project in 1994, which is about a mile long.

Bay Bridge replacement

Collapsed upper deck section of the San Francisco–Oakland Bay Bridge, 1989

In 1989, the 1989 Loma Prieta earthquake, with a magnitude of 6.9, was responsible for 63 deaths and 3,757 injuries. The San Francisco–Oakland Bay Bridge, which is part of I-80, suffered severe damage, as a 76-by-50-foot (23 m × 15 m) section of the upper deck on the eastern cantilever side fell onto the deck below. The quake caused the Oakland side of the bridge to shift 7 inches (18 cm) to the east, and caused the bolts of one section to shear off, sending the 250-short-ton (230 t) section of roadbed crashing down like a trapdoor.^[28] Caltrans removed and replaced the collapsed section, and re-opened the bridge on November 18.^[29]

New eastern span of Bay Bridge, 2013

Around the mid-2000s, due to the risk of a future large earthquake, Caltrans started building a new eastern span. The department advertised that the new span of the Bay Bridge used a new earthquake-resisting technique that would not collapse in an earthquake similar to the Loma Prieta earthquake.^[30] The new eastern span opened on September 2, 2013 at an estimated cost of $6.4B dollars.

Future

The "I-80 Across the Top" Project is a major reconstruction of an alignment of I-80 in Sacramento. The corridor starts from exit 85 (West El Camino Avenue) to exit 95 (I-80 Business) and features a 10-mile (16 km) extension of HOV lanes west along I-80, at a cost of about $133.3 million. Construction started in 2011 and is expected to finish in 2016.^[31][32]

Exit list

County	Location	mi[1]	km	Exit[1]	Destinations	Notes
City and County of San Francisco		0.00– 0.91	0.00– 1.46	1	US 101 – San Jose, Golden Gate Bridge	Westbound exit and eastbound entrance; signed as exits 1A (south) and 1B (north); west end of I-80; US 101 north exit 433B, south exit 433
				1C	Ninth Street – San Francisco Civic Center	Signed as exit 433C on US 101 northbound
				1	Seventh Street	Eastbound exit and westbound entrance
		1.91– 2.02	3.07– 3.25	2A	Fifth Street	Westbound exit and eastbound entrance
				2B	Fourth Street, Embarcadero	Eastbound exit and westbound entrance
				2C	Harrison Street, Embarcadero	Westbound exit and eastbound entrance; former Fremont Street exit
				2D	Fremont Street, Folsom Street	Westbound exit and eastbound entrance; former Main Street / SR 480 exit; west end of I-80; east end of SR 80
San Francisco Bay				San Francisco–Oakland Bay Bridge (west span)
City and County of San Francisco		4.18	6.73	4A	Treasure Island, Yerba Buena Island	Eastbound exit and westbound entrance only; westbound exit and eastbound entrance are via exit 4/4B
				4B	Yerba Buena Island	No eastbound exit; signed as exit 4 westbound
San Francisco Bay		5.31	8.55	San Francisco–Oakland Bay Bridge (east span)
Alameda	Oakland	7.81	12.57	8A	West Grand Avenue, Maritime Street
		8.11	13.05		I-880 south (Nimitz Freeway) – Alameda, San Jose	Westbound exit is part of exit 8B; I-880 exits 46A-B
		8.11	13.05	8B	I-580 east (MacArthur Freeway) to SR 24 – Downtown Oakland, Hayward, Stockton	West end of I-580 overlap; westbound exit and eastbound entrance; I-580 west exit 19A
	Emeryville	9.10	14.65	9	Powell Street – Emeryville	No eastbound exit from I-880 north
	Berkeley	9.89	15.92	10	SR 13 (Ashby Avenue) / Shellmound Street	Shellmound Street accessible eastbound only
		11.13	17.91	11	University Avenue – Berkeley	Serves UC Berkeley
		11.91	19.17	12	Gilman Street
	Albany	12.61	20.29	13A	Buchanan Street – Albany	Signed as exit 13 westbound
		12.91	20.78	13B	I-580 west – Point Richmond, San Rafael	Eastbound exit and westbound entrance; east end of I-580 overlap
				—	Pierce Street	Former eastbound exit and entrance; demolished as part of reconstruction of I-80 / I-580 interchange in Albany
Contra Costa	Richmond	13.57	21.84	14A	Central Avenue – El Cerrito
		14.35	23.09	14B	Carlson Boulevard
	El Cerrito	15.02	24.17	15	Potrero Avenue	Eastbound exit and westbound entrance
	Richmond				Cutting Boulevard (SR 123)	Westbound exit and eastbound entrance
				—	Cutting Boulevard	HOV access only; westbound left exit and eastbound entrance
		15.97	25.70	16A	MacDonald Avenue	Eastbound exit and westbound entrance
		16.31	26.25	16B	San Pablo Avenue, Barrett Avenue	Signed as exit 16 westbound; Barrett Avenue formerly signed as Central Richmond
		16.76	26.97	17	Solano Avenue	Eastbound exit and westbound entrance
					McBryde Avenue	Westbound exit only
	San Pablo	17.69	28.47	18	San Pablo Dam Road
	​	18.60	29.93	19A	El Portal Drive
	Richmond	19.33	31.11	19B	Hilltop Mall, Auto Plaza	Formerly signed as Hilltop Drive
	Richmond–Pinole line			—	Richmond Parkway	HOV access only; eastbound left exit and westbound entrance
	Pinole	19.95	32.11	20	To I-580 west / Richmond Parkway, Fitzgerald Drive	Unconstructed SR 93
		20.95	33.72	21	Appian Way
		21.86	35.18	22	Pinole Valley Road
	Hercules	23.41	37.67	23	SR 4 east – Hercules, Stockton	No westbound exit; SR 4 exit 1B
					Hercules
		24.04	38.69	24	Willow Avenue – Rodeo
	​	26.10	42.00	26	To SR 4 east / Cummings Skyway – Martinez, Concord
	​	26.84	43.19	27	Pomona Street – Crockett, Port Costa
Carquinez Strait		27.49	44.24	Carquinez Bridge
Solano	Vallejo	28.63– 28.79	46.08– 46.33	29A	SR 29 (Sonoma Boulevard)	Eastbound exit and westbound entrance
				29A	Maritime Academy Drive	Westbound exit and entrance
				29B	Sequoia Avenue	Eastbound exit only
		29.27	47.11	29C	Magazine Street	Signed as exit 29B westbound
		29.71	47.81	30A	I-780 to I-680 / Curtola Parkway – Benicia, Martinez	Former I-680 south; I-780 exits 1A-B
		29.93	48.17	30B	Frontage Road (to Benicia Road)	Eastbound exit only; former SR 141
		30.37	48.88	30C	Georgia Street – Central Vallejo	Signed as exit 30B westbound
		30.72	49.44	31A	Springs Road, Solano Avenue
		30.98	49.86	31B	Tennessee Street – Mare Island
		31.92	51.37	32	Redwood Parkway, Redwood Street	Signed as exits 32A (east) and 32B (west) eastbound
		33.12	53.30	33	SR 37 west / Auto Mall Columbus Parkway – Napa, San Rafael, Novato	Signed as exits 33A (Auto Mall Columbus Parkway) and 33B (SR 37) westbound; SR 37 exits 21A and 21C
	​	34.12	54.91	Hunter Hill Rest Area (Westbound only)
Napa	No major junctions[33]
Solano	​	35.59	57.28	36	American Canyon Road, Hiddenbrooke Parkway
	Fairfield	38.88	62.57	39A	Red Top Road	Signed as exit 39 eastbound
				39B	SR 12 west – Napa, Sonoma	West end of SR 12 overlap; eastbound exit is via exit 39
		40.34– 40.99	64.92– 65.97	40	Green Valley Road	Westbound exit is part of exit 41
					I-680 south – Benicia, Martinez, San Jose	Former SR 21; I-680 north exits 71A-B
				41	Suisun Valley Road, Pittman Road
		43.32	69.72	43	SR 12 east – Suisun City, Rio Vista	East end of SR 12 overlap; westbound exit is via exit 43
		43.64	70.23	44A	Abernathy Road, Suisun Parkway	Signed as exit 43 westbound
		44.22	71.17	44B	West Texas Street, Rockville Road – Fairfield	Signed as exit 44 westbound
		45.42	73.10	45	Travis Boulevard
		46.68	75.12	47	Waterman Boulevard, Air Base Parkway – Travis AFB	Signed as exits 47A (Air Base Parkway) and 47B (Waterman Boulevard) westbound
		48.30	77.73	48	North Texas Street, Manuel Campos Parkway – Fairfield
	​	50.62	81.46	51A	Lagoon Valley Road, Cherry Glen Road
	Vacaville	51.16	82.33	51B	Peña Adobe Road
				52	Cherry Glen Road	Westbound exit only
		52.81	84.99	53	Alamo Drive, Merchant Street
		53.51	86.12	54A	Davis Street
		53.97	86.86	54B	Peabody Road, Mason Street – Elmira
		54.74	88.10	55	Monte Vista Avenue, Allison Drive, Nut Tree Parkway
		55.86	89.90	56	I-505 north – Winters, Redding	I-505 exits 1A-B
		57.29	92.20	57	Leisure Town Road, Vaca Valley Parkway
		58.80	94.63	59	Meridian Road, Weber Road
	​	60.12	96.75	60	Midway Road, Lewis Road
	Dixon	64.04	103.06	63	Dixon Avenue, West A Street – Dixon
		64.38	103.61	64	Pitt School Road
		65.70	105.73	66A	SR 113 south (First Street) / Currey Road – Dixon	West end of SR 113 overlap; signed as exit 66 eastbound
	​			66B	Milk Farm Road	Westbound exit only
	​	67.22	108.18	67	Pedrick Road (CR E7)
	​	68.74	110.63	69	Kidwell Road
	​	70.16	112.91	70	SR 113 north (Vic Fazio Highway) – Woodland	East end of SR 113 overlap; SR 113 exits 26A-B
	​	70.50	113.46	71	UC Davis (Old Davis Road)
Yolo	Davis	72.44	116.58	72	Richards Boulevard – Downtown Davis	Signed as exits 72A (south) and 72B (north) westbound
		73.05	117.56	73	Olive Drive	Westbound exit only; former US 40 west / US 99W north
		74.89	120.52	75	Mace Boulevard (CR E6)
	​	77.99	125.51	78	Road 32A, East Chiles Road
	Yolo Bypass			Yolo Causeway
	West Sacramento	81.39	130.98	81	West Capitol Avenue, Enterprise Boulevard – West Sacramento	West Capitol Avenue was former US 40 east / US 99W south
		82.12	132.16	82	I-80 Bus. east (Capital City Freeway) / US 50 east (El Dorado Freeway) – Sacramento, South Lake Tahoe	Former US 40 east / US 99W south / I-80 east; I‑80 Bus./US 50 exits 1A-B
		83.46	134.32	83	Reed Avenue (SR 84) – West Sacramento
Sacramento	Sacramento	85.29	137.26	85	West El Camino Avenue
		86.48	139.18	86	I-5 to SR 99 – Sacramento, Los Angeles, Redding	I-5 exit 522
		87.58	140.95	88	Truxel Road	Serves Sleep Train Arena
		88.91	143.09	89	Northgate Boulevard
		90.05	144.92	90	Norwood Avenue
		91.56	147.35	91	Raley Boulevard, Marysville Boulevard – Del Paso Heights
		92.60	149.03	92	Winters Street
		93.33	150.20	93	Longview Drive
	​	94.29– 94.83	151.75– 152.61	94	Light Rail Stations (Roseville Road, Watt/I-80 West, and Watt/I-80)	Westbound left exit and eastbound left entrance; also accessible as part of exit 93 westbound
	​			94A	Watt Avenue	Westbound exit is part of exit 95
	​			94B	Auburn Boulevard (SR 244)	Westbound exit is part of exit 95
	​	94.94	152.79	95	I-80 Bus. west (Capital City Freeway) to SR 99 south – Sacramento	Westbound exit and eastbound entrance; eastbound exit is part of exit 94A; former I-80 west
	​	96.41	155.16	96	Madison Avenue
	​	98.38	158.33	98	Greenback Lane, Elkhorn Boulevard (CR E14)
	Citrus Heights	100.62	161.93	100	Antelope Road
Placer	Roseville	102.20	164.47	102	Riverside Avenue, Auburn Boulevard – Roseville, Citrus Heights	Former US 40 / SR 65
		103.91	167.23	103	Douglas Boulevard, Sunrise Avenue (CR E2)	Signed as exits 103A (east) and 103B (west) eastbound
		105.00	168.98	105A	Atlantic Street, Eureka Road	Signed as exits 105A (Eureka Road) and 105B (Atlantic Street) westbound
		105.59	169.93	105B	Taylor Road, Pacific Street	Westbound exit is via exit 105A
		106.09	170.74	106	SR 65 north – Lincoln, Marysville
	Rocklin	107.99	173.79	108	Rocklin Road
		109.35	175.98	109	Sierra College Boulevard (CR E3)
	Loomis	110.65	178.07	110	Horseshoe Bar Road – Loomis
	​	112.28	180.70	112	Penryn Road – Penryn
	​	115.74	186.27	115	Newcastle Road – Newcastle
	Lincoln	116.23	187.05	116	SR 193 west – Lincoln	West end of SR 193 overlap
	Auburn	118.84	191.25	118	Ophir Road	Westbound exit and eastbound entrance
		119.22	191.87	119A	Maple Street, Nevada Street – Auburn
		119.47	192.27	119B	SR 49 north (SR 193 east) – Grass Valley	East end of SR 193 overlap
		119.76	192.74	119C	To SR 49 south / Elm Avenue – Placerville
		120.87	194.52	120	Lincoln Way, Russell Road	No eastbound entrance
	​	121.40	195.37	121	Auburn Ravine Road – Foresthill
	​	122.06	196.44	122	Bowman
	​	123.06	198.05	123	Bell Road
	​	124.14	199.78	124	Dry Creek Road
	​	125.36	201.75	125	Clipper Gap, Meadow Vista (Placer Hills Road)
	​	128.14	206.22	128	Applegate
	​	129.32	208.12	129	Heather Glen
	​	130.52	210.05	130	West Paoli Lane
	​	131.25	211.23	131	Weimar Cross Road
	Colfax	133.72	215.20	133	Canyon Way, Placer Hills Road
		135.06	217.36	135	SR 174 – Colfax, Grass Valley
	​	140.28	225.76	139	Rollins Lake Road, Magra Road	Westbound exit and entrance
	​			140	Secret Town Road, Magra Road
	​	143.30	230.62	143	Magra Road – Gold Run
	​	144.13	231.95	144	Gold Run	Westbound exit and eastbound entrance
	​	143.68	231.23	Gold Run Rest Area
	​	145.10	233.52	145	Dutch Flat
	​	146.68	236.06	146	Alta
	​	148.24	238.57	148A	Crystal Springs
	​	148.87	239.58	148B	Baxter
	​	150.93	242.90	150	Drum Forebay Road
	​	155.29	249.92	155	Blue Canyon
	​	156.74	252.25	156	Nyack Road
	​	157.99	254.26	158A	Emigrant Gap	Signed as exit 158 westbound
	​	158.79	255.55	158B	Laing Road	Eastbound exit only
Nevada	​	160.77	258.73	160	Yuba Gap
	​	161.47	259.86	161	SR 20 west – Nevada City, Grass Valley
	​	163.96	263.87	164	Eagle Lakes Road
Placer	​	165.45	266.27	165	Cisco Grove (Cisco Road)
	​	166.73	268.33	166	Big Bend	Eastbound exit only
	​	168.13	270.58	168	Rainbow Road – Big Bend
	​	171.16	275.46	171	Kingvale
Nevada	​	174.18	280.32	174	Soda Springs, Norden
	​	176.77	284.48	176	Boreal Ridge Road – Castle Peak
	​	177.22	285.21	Donner Summit Rest Area
	​	180.09	289.83	180	Donner Lake (Donner Lake Road)
	​	184.91	297.58	184	Donner Pass Road
	​	185.86	299.11	185	SR 89 south – Tahoe City, Lake Tahoe, Squaw Valley	West end of SR 89 overlap
	Truckee	186.67	300.42	186	Central Truckee	No eastbound entrance
		187.99	302.54	188A	Truckee	Eastbound exit and westbound entrance
		188.30	303.04	188B	SR 89 north / SR 267 south – Sierraville, Lake Tahoe	East end of SR 89 overlap; signed as exit 188 westbound
	​	189.98	305.74	190	Overland Trail
	​	190.96	307.32	Agricultural Inspection Station (westbound only)
	​	194.11	312.39	194	Hirschdale Road
	​	198.99	320.24	199	Floriston
	​	201.19	323.78	201	Farad
Sierra	​	205.07	330.03		I‑80 east – Reno	Continuation into Nevada
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Closed/former       Concurrency terminus       HOV only       Incomplete access

Related routes

There are eight associated routes of I-80: seven auxiliary Interstate Highways and one business route; these routes are I-280, I-380, I-580, I-680, I-780, I-880, I-980, and I-80 Bus.. Three former routes exist: I-180, I-480, and I-880.^[34]

See also

• California Roads portal

References

1. Warring, KS (April 18, 2008). "Interstate 80 Freeway Interchanges" (PDF). California Numbered Exit Uniform System. California Department of Transportation. Archived (PDF) from the original on April 23, 2014. Retrieved April 28, 2014.
2. Faigin, Daniel P. (April 28, 2014). "Interstate Highway Types and the History of California's Interstates". California Highways. Retrieved April 28, 2014.
3. Faigin, Daniel P. "Routes 73 through 80: Interstate 80". California Highways. Retrieved January 26, 2013.
4. "Truck Networks on California State Highways: District 4" (PDF). California Department of Transportation. May 1, 2015. Retrieved May 3, 2016.
5. California Department of Transportation (January 2014). 2013 Named Freeways, Highways, Structures and Other Appurtenances in California (PDF). California Department of Transportation. pp. 42–44. Retrieved January 31, 2015.
6. Federal Highway Administration (April 2004). National Highway System: San Francisco–Oakland CA (PDF) (Map). Scale not given. Federal Highway Administration. Archived from the original (PDF) on November 20, 2006.
7. California Department of Transportation. "California Road System (CRS) Maps". California Department of Transportation. Retrieved November 2007. Check date values in: |access-date= (help)
8. City of Emeryville, CA. "Emeryville Comes of Age: 1930s to 1960s". City of Emeryville, CA. Retrieved July 21, 2010.
9. "Join California-Kent D. Pursel". May 5, 2016.
10. "Highways with 70MPH Speed Limits". California Department of Transportation.
11. "Carpool Lanes". 511.org. Metropolitan Transportation Commission. 2016. Retrieved May 1, 2016.
12. California Department of Transportation (2007). "Chain Controls". California Department of Transportation. Retrieved September 3, 2010.
13. California Department of Transportation District 3 (2007). "Winter Operations". California Department of Transportation. Retrieved September 3, 2010.
14. California Department of Transportation. "Elevation and Location of Summits and Passes in California". California Department of Transportation. Archived from the original (XLS) on November 7, 2009.
15. "End of US Highway 40". US Ends.com.
16. "California U.S. Highway 40". National Geographic, Sierra Nevada Tourism.
17. Estes, Griffin (March 29, 2015). "The Panhandle Freeway". Hoodline.com.
18. Fagin, Daniel P. (May 1, 2016). "Route 280". California Highways.
19. Edspein, Edward (April 18, 2000). "Underground Toll Roads Urged for S.F.: Transit group proposes 3 crosstown routes". San Francisco Chronicle.
20. "California Highways and Public Works July-August 1961". California Department of Transportation.
21. "California Highways and Public Works May–June 1957". California Department of Transportation.
22. "California State Parks Office of Historical Preservation". Retrieved 2013-07-07.
23. "Route Renumbering: New Green Markers Will Replace Old Shields". California Highways and Public Works. 43 (3–4): 11–13. March–April 1964. ISSN 0008-1159. Retrieved April 19, 2016 – via Archive.org.
24. Cooper, Casey. "1964 California Highway Renumbering". GBCnet.com.
25. Fagin, Daniel (May 2, 2016). "Routes 33-40". California Highways.
26. Sanderson, Dale (May 5, 2016). "Historic US highways endpoints in San Francisco, CA". USEnds.
27. "I-880 (decommissioned)". Kurumi.
28. "The California Quake: The Bay Bridge; Damage to Link Across Bay Is More Serious than Thought". The New York Times. October 20, 1989.
29. "San Francisco Earthquake History 1915–1989: October 17, 1989". The Virtual Museum of the City of San Francisco. Museum of the City of San Francisco. n.d. Retrieved April 20, 2016.
30. California Department of Transportation. "San Francisco–Oakland Bay Bridge East Span Seismic Safety Project". California Department of Transportation.
31. "80 Across the Top". California Department of Transportation.
32. "Across the Top Bus/Carpool Lanes SAC-80". California Department of Transportation.
33. Google (November 11, 2015). "Napa County, CA" (Map). Google Maps. Google. Retrieved November 11, 2015.
34. "I-80 Auxiliary Routes". Roadnow.com. Retrieved June 8, 2016.

External links

Route map: Bing / Google

• Caltrans District 4: Current major projects on Route 80
• Live Toll Prices for San Francisco-Oakland Bay Bridge