Misplaced Pages

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54-850: It consists of three contiguous segments: the Warren Freeway from I-580 to State Route 24 in Oakland; Tunnel Road , a narrow two-lane road to Claremont Avenue in Berkeley; and Ashby Avenue , a main east–west street through south Berkeley to I-80/I-580. The route currently begins at Interstate 580 near Mills College in East Oakland and continues north as the Warren Freeway, named after former Alameda County District Attorney, California Governor and U.S. Supreme Court Chief Justice Earl Warren . The four-lane freeway takes

108-488: A FasTrak Flex or CAV (Clean Air Vehicle) transponder, with its switch set to indicate the number of the vehicle's occupants (one, two, three, or more). Solo drivers may also use the FasTrak standard tag without the switch. Drivers without any FasTrak tag will be assessed a toll violation regardless of whether they qualified for free. The state legislature added the proposed San Jose – Richmond East Shore Highway to

162-408: A congestion pricing system based on the real-time levels of traffic. Two-person carpools and clean air vehicles with a solo driver are charged 50 percent of the posted toll. Carpools with three or more people and motorcycles are not charged. All tolls are collected using an open road tolling system, and therefore there are no toll booths to receive cash. Each vehicle is required to carry either

216-572: A state of emergency and all public transportation was free on the first commute day. Improvements to the I-280/I-880 and Stevens Creek Boulevard interchanges finished early 2015. Changes included breaking up the handful of ramps that both interchanges shared so they would be independent from one another. Construction began in late 2012 and the ramp from I-280 north to I-880 north opened in April 2015. The I-880 Corridor Improvement Project, one of

270-405: A future Route 24 bypass. [1] A 1956 version of Thomas Brothers maps shows Mount Diablo Boulevard where present day Northgate Road is and labeled as Route 24, winding and climbing the mountain. Mileage is measured from SR 24's original western terminus, now part of Interstate 980 . Nimitz Freeway Interstate 880 ( I-880 ) is a north–south auxiliary Interstate Highway in

324-606: A largely straight path as it runs through a scenic valley. This valley is enclosed by the far eastern hills of Oakland and a shutter ridge that has been driven northwestward along the Hayward Fault , and the entire freeway lies within the earthquake fault zone of the Hayward Fault. In the event of a major earthquake on the fault, this section of SR 13 may sustain heavy damage. Numerous overpasses have recently undergone extensive seismic retrofitting . The tall trees on

378-487: A railyard, and an East Bay Municipal Utility District sewage treatment plant; it occupied an entirely new right-of-way , which required the acquisition of large amounts of valuable industrial real estate near the Port of Oakland; and it had to be earthquake resistant. The former path of the structure was then renamed Mandela Parkway, and the median where the freeway stood became a landscaped linear park . Several aspects of

432-524: A significant environmental impact to the nearby Guadalupe River . On April 29, 2007, a gasoline tanker overturned and caught fire on the connector between westbound I-80 and southbound I-880 on the MacArthur Maze interchange. The fire caused major damage to both this connector and one directly above (eastbound I-80 onto eastbound I-580). The overpass was replaced and reopened 27 days later. The governor, Arnold Schwarzenegger , declared it as

486-523: Is also commonly referred to as the Cypress Freeway , after the former alignment of the freeway and its subsequent replacement. The southern terminus of I-880 is at its interchange with I-280 and SR 17 in San Jose . From there, it heads roughly northeast past San Jose International Airport to US Route 101 (US 101). The Nimitz Freeway then turns northwest, running parallel to

540-656: Is in Alameda County . California State Route 24 State Route 24 ( SR 24 ) is a heavily traveled east–west state highway in the U.S. state of California that serves the eastern side of the San Francisco Bay Area . A freeway throughout its entire length, it runs from the Interstate 580 / Interstate 980 interchange (just east of the MacArthur Maze ) in Oakland , and through

594-582: Is located on top of Grove Shafter Park . SR 24 initially heads north before turning east near the Berkeley city limits. Route 24 rises from near sea level in downtown Oakland past its interchange with State Route 13 , which is a freeway south of SR 24 (upgraded August 1999) and a surface street north of SR 24. After this, SR 24 crosses the Contra Costa County county line through the four-bore Caldecott Tunnel and offers some attractive views of

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648-569: Is north on Telegraph Avenue , while Ashby BART station is located at Adeline Street. Past San Pablo Avenue (SR 123), Route 13 (as Ashby Avenue) runs through a more modest neighborhood before reaching its current end at Interstate 80 /Interstate 580. SR 13 is part of the California Freeway and Expressway System , and is part of the National Highway System , a network of highways that are considered essential to

702-594: The 1994 Northridge earthquake , Caltrans initiated Phase 2 of its seismic retrofit program, which included projects along the I-880 corridor. Other goals include reducing traffic congestion and improving road quality. The individual projects included in the I-880 Corridor Improvement Project were retrofitting or replacing the 5th Avenue, 23rd Avenue, 29th Avenue, Fruitvale Avenue, and High Street bridges in Oakland; improvements to both

756-662: The Antioch Bridge , continuing along the river road to Sacramento, currently State Route 160 , then continuing north to Woodland , Marysville , Oroville , along the North Fork of the Feather River to a junction with State Route 89 (this segment is currently State Route 70 ), where it continued dual-numbered with 89 through Quincy . Highway 24 split from 89 near Graeagle, and continued east through Portola east until its terminus at U.S. Route 395 . Parts of

810-577: The Berkeley Hills , and routed along Mount Diablo Boulevard through Contra Costa County east of the hills. Before either the bridge or the tunnel were completed, Highway 24 was provisionally routed starting from downtown Oakland at the major intersection of San Pablo and Broadway, which was also the terminal point of US 40 and State Highway 17. From this point, Highway 24 proceeded northward along Broadway to College Avenue, then along College to Claremont Avenue, up Claremont to Tunnel Road, then up into

864-759: The Caldecott Tunnel under the Berkeley Hills , to the Interstate 680 junction in Walnut Creek . It lies in Alameda County , where it is highly urban, and Contra Costa County , where it passes through wooded hillsides and suburbs. SR 24 is a major connection between the San Francisco–Oakland Bay Bridge /MacArthur Maze complex and the inland cities of the East Bay . SR 24 begins at the four-level stack interchange with Interstate 580 and Interstate 980 in Oakland ; this interchange

918-682: The Eastshore Freeway ( I-80 ) through Richmond to the Richmond–San Rafael Bridge and San Rafael . In 1984, the segment of SR 17 from I-280 in San Jose to the MacArthur Maze in Oakland was renumbered as I-880, and the portion of SR 17 from the MacArthur Maze to San Rafael was renumbered as part of I-580. In 1947, construction commenced on a freeway to replace the street routing of SR 17 through

972-413: The MacArthur Maze and following a newly constructed alignment (signed as US 40 ) to El Cerrito . The first short piece of the new Eastshore Freeway opened to traffic on July 22, 1949, connecting Oak Street downtown with 23rd Avenue. It was extended to 98th Avenue on June 1, 1950, Lewelling Boulevard on June 13, 1952, and Jackson Street ( SR 92 ) on June 5, 1953. At the San Jose end,

1026-491: The MacArthur Maze , continuing henceforth as I-980 to the terminus with I-880. Highway 24 was designated in 1932 in conjunction with the ongoing construction of the Broadway Low Level Tunnel (renamed the Caldecott Tunnel in 1960) which opened in 1937, connecting with the new Eastshore Highway and the approaches to the new Bay Bridge by way of Tunnel Road and Ashby Avenue through Berkeley west of

1080-513: The Nimitz Freeway in honor of WWII Admiral Nimitz, while the portion to the north retained the name Eastshore Freeway . The formal dedication, with the participation of Admiral Nimitz, took place on August 12, 1958. The northern portion of I-880 was designated US 50 Business (US 50 Bus.) for a time between the I-80 interchange and Downtown Oakland. From 1971 to 1983, I-880 was

1134-483: The San Francisco Bay Area of Northern California . It runs from I-280 and State Route 17 (SR 17) in San Jose to I-80 and I-580 in Oakland , running parallel to the eastern shore of San Francisco Bay . For most of its route, I-880 is officially known as the Nimitz Freeway , after World War II fleet admiral Chester W. Nimitz , who retired to the Bay Area. The northernmost five miles (8.0 km)

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1188-725: The Berkeley Hills on Tunnel Road to the old Intercounty Tunnel (also called the Kennedy Tunnel), through the tunnel into Contra Costa County. Highway 24 remained along Ashby Avenue until completion of the Grove-Shafter Freeway in the late 1960s. This new freeway, which ran from the Caldecott Tunnel through downtown Oakland to the MacArthur and Nimitz Freeways, was designated Route 24 and Ashby

1242-616: The East Bay. The new freeway was named the "Eastshore Freeway", and, with the subsequent addition of a freeway to replace the Eastshore Highway north of the MacArthur Maze in the mid 1950s, it ran, appropriately, almost the entire length of the east shore of San Francisco Bay. In 1958, following a joint resolution of the California State Legislature , the portion south of the MacArthur Maze was renamed

1296-451: The I-880 facility have been constructed in designated floodplains such as the 1990 and 2004 interchange improvements at Dixon Landing Road. In that case, the FHWA was required to make a finding that there was no feasible alternative to the new ramp system as designed. In that same study, the FHWA produced an analysis to support the fact that adequate wetlands mitigation had been designed into

1350-546: The balance of the route of today's Warren Freeway was not a designated state highway. The main thoroughfare through the Montclair District in those days was Mountain Boulevard. State Route 13 was formed in 1947, from SR 24 to then- US 50 via Warren Boulevard. In the 1964 state highway renumbering , it extended north to I-80 over part of SR 24, and was rerouted on its current routing. Before its designation, it

1404-541: The bay had left early or stayed late to watch Game 3 of the San Francisco – Oakland World Series , the freeway was far less crowded than normal at the time of the quake. Due to environmental impact concerns, and the desire by the West Oakland community to reconnect the neighborhood with the rest of the city, among other reasons, a new route was selected along an industrial area and railroad yard around

1458-490: The city limits of Walnut Creek . The Yellow Line of the Bay Area Rapid Transit (BART) system runs in the freeway's center median , excepting the vicinity of the Caldecott Tunnel and the approach to the interchange with Interstate 680 . SR 24 is part of the California Freeway and Expressway System , and is part of the National Highway System , a network of highways that are considered essential to

1512-655: The country's economy, defense, and mobility by the Federal Highway Administration (FHWA). Officially, the Nimitz Freeway designation is Route 880 from Route 101 to Route 80, as named by Senate Concurrent Resolution 23, Chapter 84 in 1958. Since the late 1990s, an infamous misconception for certain commuters and businesses in San Jose is that I-880 extends from I-280 to SR 85 in Los Gatos (which would extend

1566-488: The country's economy, defense, and mobility by the Federal Highway Administration . SR 24 is eligible to be included in the State Scenic Highway System ; however, Caltrans has only designated it as a scenic highway between the eastern end of the Caldecott Tunnel and I-680 , meaning that it is a substantial section of highway passing through a "memorable landscape" with no "visual intrusions", where

1620-554: The country's economy, defense, and mobility by the Federal Highway Administration . SR 13 is known as the Warren Freeway from Route 24 to Route 580, as named by Assembly Concurrent Resolution 96, Chapter 166 in 1957. SR 13 was created to accommodate the construction of the Grove-Shafter Freeway , now designated State Route 24. Before the construction of the Grove-Shafter, Ashby Avenue was State Route 24, while

1674-484: The eastern approach of the San Francisco–Oakland Bay Bridge . I-880 between I-238 in San Leandro and the MacArthur Maze is used as the main truck route; trucks over 4.5 short tons (4.1 t; 4.0 long tons) are prohibited through Oakland on I-580. I-880 is part of the California Freeway and Expressway System and is part of the National Highway System , a network of highways that are considered essential to

California State Route 13 - Misplaced Pages Continue

1728-451: The entrance to the Caldecott Tunnel , however, SR 13 takes drastic changes in its quality and capacity. The freeway ends at an uphill junction and the route is defaulted onto Tunnel Road, a much more narrow two-lane road that bends to the west and winds downhill. Upon reaching the foot of the hill, Tunnel Road becomes Ashby Avenue, a markedly urban (and very busy) two-lane street with an east–west routing. Entering Berkeley , UC Berkeley

1782-416: The extension. Similar resistance in Berkeley has kept Route 13 from being built as a freeway north of Route 24, hence its role as a surface street. In August 2004, Caltrans began replacing the median's original metal guardrails with a new wall along the 3.5-mile (5.6 km) stretch of SR 13 between SR 24 and I-580. This allowed road crews to drive street-sweeping vehicles along the shoulders throughout

1836-500: The highway's side make the highway appear narrower, and until late 2004, a dense group of trees also lined most of the highway's median. For most of the day, the freeway experiences only modest traffic, which makes it a speedy bypass around downtown Oakland. Much of the traffic on this highway comes from SR 24's commute hour congestion backing up onto SR 13 northbound via the exchange between the highways. After going through an interchange with State Route 24 (upgraded August 1999) near

1890-484: The hilly terrain through which it passes. Some protection of the views comes from the highway's designation as a California Scenic Highway . On the other side of the tunnel, SR 24 travels through unincorporated Contra Costa County before entering Orinda . SR 24 crosses the Mokelumne Aqueduct soon after entering the city of Lafayette . SR 24 terminates at the intersection with Interstate 680 just inside

1944-563: The improvement project. Due to high sound levels generated from this highway and the relatively dense urban development in the highway corridor, the California Department of Transportation (Caltrans) has conducted numerous studies to retrofit the right-of-way with noise barriers . This activity has occurred in Oakland, San Leandro , Hayward , Newark , and Fremont . During the 1989 widening of I-880 in parts of Newark and Fremont, scientific studies were conducted to determine

1998-469: The last seismic retrofit projects of a major transportation corridor in California, consisted of eight separate projects located in a 15-mile (24 km) segment of the freeway between Oakland and Hayward. The overall goal of the project was to improve the seismic safety of the corridor. After the 1989 Loma Prieta earthquake , Caltrans initiated Phase 1 of its seismic retrofit program. After

2052-740: The length to 50 miles [80 km]). High-occupancy toll (HOT) lanes along I-880 between the Milpitas – Fremont line at Dixon Landing Road and Lewelling Boulevard in San Lorenzo opened in October 2020. The southbound express lanes extend north to Hegenberger Road in Oakland and south to SR 237 in Milpitas. As of August 2022 , the HOT lanes' hours of operation is weekdays between 5:00 am and 8:00 pm. Solo drivers are tolled using

2106-536: The need for sound walls and to design optimum heights to achieve Federal noise standards . Between Coleman Avenue and 1st Street in San Jose, SR 87 (Guadalupe Freeway) crosses above I-880 without an interchange, making it the only point in California where two freeways cross without a connection. Because of its proximity to the runways at San Jose International Airport , Caltrans cannot construct elevated ramps without them interfering with flight paths. Tunneling underneath to build underground ramps would also make

2160-779: The original route designation for the Beltline Freeway , the northern bypass freeway for the Sacramento area. This freeway begins 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

2214-467: The outskirts of the neighborhood. Although only about three miles (4.8 km) in length, the replacement freeway cost over $ 1.2 billion (equivalent to $ 1.97 billion in 2023 ), and did not open until 1997 for several reasons: it crossed over and under the elevated Bay Area Rapid Transit (BART) line to San Francisco; it squeezed between a postoffice, the West Oakland station , the Port of Oakland ,

California State Route 13 - Misplaced Pages Continue

2268-427: The overlap with Route 5 between Bayshore Highway ( US 101 ) and Warm Springs was bypassed on July 2, 1954. Within Oakland, the double-decker Cypress Street Viaduct opened on June 11, 1957, connecting the freeway with the San Francisco–Oakland Bay Bridge . The Oakland segment was extended south to Fremont Boulevard at Beard Road on November 14, 1957, and the gap was filled on November 24, 1958, soon after

2322-422: The portion from San Leandro into Oakland was also kept as part of Route 105 (now SR 185 ). Prior to 1984, the route known as I-880 used to be part of SR 17 , which was US 48 from current I-238 to US 101 from 1926 to 1931, then US 101E from 1929 to the mid-1930s. SR 17 used to run from Santa Cruz all the way through San Jose , Oakland , and then continued north via

2376-766: The potential designation has gained popular favor with the community. SR 24 is designated as both the Grove Shafter Freeway , after streets the route travels along (Grove Street was later renamed Martin Luther King Jr. Way), and the William Byron Rumford Freeway, honoring the first African American elected to a state public office in Northern California, from the Caldecott Tunnel to the I-580 interchange segment of

2430-535: The road as it was in 1964 , based on the alignment that existed at the time, and do not necessarily reflect current mileage. R reflects a realignment in the route since then, M indicates a second realignment, L refers to an overlap due to a correction or change, and T indicates postmiles classified as temporary ( for a full list of prefixes, see California postmile § Official postmile definitions ). Segments that remain unconstructed or have been relinquished to local control may be omitted. The entire route

2484-638: The same route were also sometimes designated as State Route 84. At least one published map from the 1960s incorrectly showed Route 24 extending eastward from Interstate 680 in Walnut Creek to Route 4 in Pittsburg that followed the Ygnacio Valley Road-Kirker Pass Road-Railroad Avenue corridor , presumably as a future extension that never materialized. A 1970 State Highway Map shows this corridor as

2538-425: The southeastern shore of San Francisco Bay , connecting the cities of Milpitas , Fremont , Newark , Union City , Hayward , and San Leandro before reaching Oakland . In Oakland, I-880 passes by Oakland International Airport , Oakland Coliseum , the Port of Oakland , and Downtown Oakland . The northern terminus of I-880 is in Oakland at the junction with I-80 and I-580 (known as the MacArthur Maze ), near

2592-810: The state highway system in 1933, and it became an extension of the previously short ( San Rafael to the bay) Legislative Route (LRN) 69 , and part of Sign Route 13 (soon changed to 17) in 1934. From San Jose, this route temporarily followed existing LRN 5 (present Oakland Road, Main Street, Milpitas Boulevard, and Warm Springs Boulevard) to SR 21 at Warm Springs and then continued along existing county roads and city streets, now known as Fremont Boulevard, Alvarado Boulevard, Hesperian Boulevard, Lewelling Boulevard, Washington Avenue, 14th Street, 44th Avenue, 12th Street, 14th Avenue, 8th Street, and 7th Street, into Downtown Oakland . It then turned north at Cypress Street (now Mandela Parkway), passing through

2646-403: The state legislature named the highway after Fleet Admiral Chester W. Nimitz . (The short spur to Route 5 at Warm Springs (now SR 262 ) remained in the state highway system as a branch of Route 69. ) As these sections opened, Sign Route 17 (and LRN 69) was moved from its old surface routing, which mostly became local streets. Other than Route 5 south of Warm Springs,

2700-427: The week, rather than sending people to pick up trash by hand. However, residents frequenting SR 13 have said that the median appears to be filled with fewer trees and bushes than prior to Caltrans construction. These trees once densely lining the median have long supplemented the lush vegetation on both sides of the highway to beautify this scenic route. Except where prefixed with a letter, postmiles were measured on

2754-679: Was known as Sign Route 24; however, it was legislatively designated as Route 206 since 1935. The portion between I-80 and SR 61 was also part of Legislative Route 206 and was commissioned into the state highway system in 1959. Route 13 was to have been a freeway bypass of Oakland and Berkeley and would have extended south from its present end to the Nimitz Freeway ( Route 880 ). State law describes an even longer Route 13, which would start further south at Route 61 and end at an unconstructed part of Route 61 west of Emeryville . The latter end would require an interchange over water. However, local resistance to further freeway construction in Oakland prevented

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2808-479: Was known as several different legislative route numbers, including 258 from Interstate 580 to present-day SR 61, and 227 from Warren Boulevard to U.S. Route 50. This latter segment was not finished in 1963 and only existed from SR 24 to Joaquin Miller Road. However, the finished portion along Warren Boulevard was commissioned as part of the state highway system in 1947. The portion of SR 13 between SR 24 and I-80

2862-482: Was re-designated Route 13. Route 24 used to extend much further east. The section of Interstate 680 between the current terminus of SR 24 and State Route 242 was dual-signed I-680 and SR 24 until c.  1987 ; State Route 242 which runs primarily in Concord was signed as Route 24 until the same time. Older maps show routes for 24 which continue along State Route 4 from the current intersection of 242 to

2916-664: Was then the original I-80 routing, continuing southwest directly into Downtown Sacramento . I-80 was then rerouted along the Beltline Freeway in 1983, while the Capital City Freeway became I-80 Bus. A large double-decker section in Oakland, known as the Cypress Street Viaduct , collapsed during the 1989 Loma Prieta earthquake , causing 42 deaths; initial estimates were significantly higher, but, because many commuters on both sides of

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