Benicia–Martinez Bridge

{{Use American English|date=January 2025}} {{Use mdy dates|date=January 2025}} {{Infobox bridge | name = Benicia–Martinez Bridge | image = BeniciaMartinezbridge.jpg | image_upright = | alt = | caption = Aerial view of the Benicia–Martinez Bridge. From left to right: Southbound span (1962) Railway (1930) and Northbound span (2007) | coordinates = {{Coord|38.0406|N|122.1230|W|region:US_type:landmark|display=inline,title|format=dms}} | os_grid_reference = | carries = {{Bulleted list |9 lanes (5 northbound, 4 southbound) of {{jct|state=CA|I|680}} |Bicycles and pedestrians on southbound span<ref name="caltrans">{{Cite press release|url=https://www.dot.ca.gov/dist4/benicia/docs/benicia_martinez_nr090731.pdf|title=New Lanes to Open on Southbound Benicia-Martinez Bridge|publisher=Caltrans|date=2009-07-29|access-date=2009-08-18}}</ref> }} | crosses = Carquinez Strait | locale = Martinez and Benicia, California, U.S. | official_name = George Miller Jr., Memorial Bridge<ref name="bridgename">{{Cite web|url=https://www.leginfo.ca.gov/pub/07-08/bill/asm/ab_0051-0100/acr_62_bill_20070705_amended_asm_v98.html|title=Assembly Concurrent Resolution No. 62|publisher=California State Legislature|date=2007-07-05|access-date=2009-08-18}}</ref> (southbound span), Congressman George Miller Benicia–Martinez Bridge<ref name="bridgename"/> (northbound span) | other_name = | named_for = | owner = State of California | maint = California Department of Transportation and the Bay Area Toll Authority | heritage = | id = 28 0153L (1962 span) 28 0153R (2007 span) | id_type = | website = {{Official website|www.bayareafastrak.org}} | preceded = | followed = | design = Truss bridge (southbound span), segmental bridge (northbound span) | material = | material1 = | material2 = | length = 1.7 miles (2.72 km, 8,976 feet) | width = | height = | depth = | traversable = | towpath = | mainspan = 528 feet (0.1 mi) | number_spans = 7 (southbound) | piers_in_water = | load = | clearance_above = | clearance_below = 138 feet (42.1 m) | life = | architect = | designer = | contracted_designer = | winner = | engineering = | builder = | fabricator = | begin = | complete = | cost = US$25 million (southbound) US$1.3 billion (northbound) | open = 1962 (southbound) 2007 (northbound) | inaugurated = | replaces = | replaced_by = | traffic = | toll = {{Plainlist| * Northbound only * FasTrak or pay-by-plate, cash not accepted * Effective {{Start and end dates|2026|01|01|2026|12|31}}: * $8.50 * $4.25 (carpool rush hours, FasTrak only) }} | map_type = | map_relief = | map_dot_label = | map_image = | map_size = | map_alt = | map_caption = | extra =  }}

The '''Benicia–Martinez Bridge''' refers to three parallel bridges which cross the Carquinez Strait just west of Suisun Bay in California. The spans link Benicia on the north side with Martinez on the south. A 1962 truss bridge, officially the '''George Miller Jr., Memorial Bridge''' after California state legislator George Miller Jr.,<ref name="bridgename"/> carries southbound Interstate 680 traffic, bicycles, and pedestrians. A 2007 segmental bridge, officially the '''Congressman George Miller Benicia–Martinez Bridge''' after U.S. Congressman George Miller III,<ref name="bridgename"/> carries northbound Interstate 680 traffic. The middle span is a 1930 vertical-lift railroad drawbridge that carries Union Pacific and BNSF freight trains, as well as Amtrak passenger trains.

== Description == [[File:Aerial view of Vista Point, Benicia–Martinez Bridge & Mt Diablo.JPG|thumb|Aerial drone view of Vista Point and Benicia–Martinez Bridge, with Mount Diablo in the distance|left]]Union Pacific Railroad's Benicia–Martinez drawbridge, opened in 1930, is between the two vehicle bridges. It is the second-longest railway bridge in North America, and the longest railway bridge west of the Mississippi River.<ref name=":0">''Railway Age'' 9 March 1929 p576</ref> The drawbridge has the smallest clearances of the three bridges — lift span horizontal clearance is 291 feet and vertical clearances are 70 feet (closed) and 135 feet (open). It is used by Union Pacific and BNSF (trackage rights) freight trains and 36 scheduled Amtrak passenger trains each weekday. Passenger trains include the long-distance trains ''California Zephyr'' and ''Coast Starlight'' and commuter-oriented ''Capitol Corridor'' services.

The road bridges are part of Interstate 680, a major transportation link connecting other heavily traveled freeways. The southbound road span is a {{Convert|1.2|mi|km|adj=mid}} deck truss bridge opened in 1962; it has seven {{Convert|528|ft|m|adj=on}} spans and {{Convert|138|ft|m}} of vertical clearance, now carrying four lanes of southbound traffic, as well as a path for pedestrians and bicyclists.<ref name="caltrans" /> The northbound road span is a {{Convert|1.7|mi|km|adj=mid}} bridge with five lanes of traffic opened in 2007;<ref name="bridgename" /> it is the largest lightweight concrete segmental bridge in California.

A vista point is located on the north side of the span, providing an excellent view of the 3 parallel bridges passing over the Carquinez Strait with Mount Diablo in the background. It has ample parking, picnic tables and a large compass to provide orientation. This is typically the point where cyclists and pedestrians wishing to cross the bridge park their cars.<ref>{{Cite web |title=Benicia-Martinez Bridge Vista Point |url=http://www.solanoopenspace.org/OtherOutdoor_BeniciaBridgeVista.asp}}</ref>

== History ==

=== Railroad bridge === Before the bridge was completed, ferries were used to allow the railway to cross Suisun Bay. The original ferry, built at Oakland, California in 1879 and named the ''Solano'', was the world's largest train ferry. In 1914 the larger ''Contra Costa'' was built. In 1926 the ferries carried 93,000 passenger cars and 142,000 freight cars across the Strait.<ref name=":0" />

The railroad bridge was built between 1928 and 1930 for Southern Pacific Railroad to replace its train ferry between Benicia and Port Costa, California.<ref name=":0" /> Train ferry service ended with the opening of the railroad bridge on October 15, 1930.<ref>[https://www.beniciamagazine.com/backwards-glance-historic-train-bridge-turns-85/ "Historic Train Bridge Turns 85", ''Benicia Magazine'']</ref>

=== Original road bridge === The original road bridge opened in 1962 to replace the last automotive ferry service in the San Francisco Bay Area.<ref name="caltrans" /> It was named the '''George Miller Jr., Memorial Bridge''' in 1975 after California state legislator George Miller Jr.<ref name="bridgename" /> The cost of the 1962 span was US$25 million,<ref name=":1">{{Cite news |date=2007-08-26 |title=Bay Area's newest bridge is open for business |url=https://www.timesheraldonline.com//ci_6725729 |url-status=dead |archive-url=https://web.archive.org/web/20070927202139/https://www.timesheraldonline.com//ci_6725729 |archive-date=2007-09-27 |access-date=2007-08-27}}</ref> or adjusted for inflation, equivalent to ${{Format price|{{Inflation|US|25000000|1962}} }}.

=== Companion road bridge === left|thumb|Construction of the newer bridge in 2005 {{Infobox bridge | name = Benicia–Martinez Railroad Drawbridge | image = California Zephyr crossing the Benicia-Martinez Railroad Drawbridge (1), May 2019.JPG | image_upright = | alt = | caption = The Amtrak ''California Zephyr'' crosses the UPRR Benicia–Martinez drawbridge | coordinates = {{coord|38.0406|N|122.1230|W|region:US_type:landmark|display=inline|format=dms}} | os_grid_reference = | carries = Martinez Subdivision | crosses = Carquinez Strait | locale = Martinez and Benicia, California, U.S. | official_name = | other_name = | named_for = | owner = Union Pacific Railroad | maint = | heritage = | id = | id_type = | website = | preceded = | followed = | design = Vertical-lift bridge | material = | material1 = | material2 = | length = {{Cvt|5,603|ft|6|in}}<ref name="ENR19300130">{{Cite journal|issn=0891-9526|work=Engineering News-Record|title=Pier construction for the S.P. Railroad Bridge across Suisun Bay|url=https://historicbridges.org/california/martinezrr/benicia.pdf#page=1|publication-date=January 30, 1930|department=Cover story|pages=174–180|first=C. R.|last=Harding}}</ref> | width = | height = | depth = | traversable = | towpath = | mainspan = | number_spans = | piers_in_water = | load = | clearance_above = | clearance_below = {{Convert|135|ft}} (open) {{Convert|70|ft}} (closed) | life = | num_track = 2 | track_gauge = {{Railgauge|4ft8.5in|allk=on}} | structure_gauge = | electrification = | architect = | designer = S. A. Roake<ref name="ENR19310604">{{Cite journal|issn=0891-9526|work=Engineering News-Record|title=Design and erection of the Martinez-Benicia bridge superstructure|url=https://historicbridges.org/california/martinezrr/benicia.pdf#page=9|publication-date=June 4, 1931|department=Cover story|pages=918–922|first=S. A.|last=Roake}}</ref> | contracted_designer = | winner = | engineering = | builder = Southern Pacific Railroad | fabricator = | begin = 1928 | complete = | cost = US$12,000,000<ref name="ENR19300130"/> | open = 1930 | inaugurated = | traffic = 36 Amtrak trains (weekdays) | map_type = | map_relief = | map_dot_label = | map_image = | map_size = | map_alt = | map_caption = | extra =  }} In late 2001, construction began on a newer bridge east of and parallel to the railroad bridge.

The older bridge underwent seismic retrofits and was converted from carrying three lanes in each direction to carrying four lanes of southbound traffic and a bicycle/pedestrian lane, part of the San Francisco Bay Trail.

The bridge construction included a new toll plaza with nine toll booths, two open road tolling lanes to encourage FasTrak use, and one carpool lane at the south end of the bridge, although tolls continue to be charged only for northbound traffic. This required the removal of eight toll booths. The old toll plaza at the north end of the bridge was removed.

The final cost was US$1.3 billion,<ref name=":1" /> or adjusted for inflation, equivalent to ${{Format price|{{Inflation|US|1300000000|2007}} }}. The original estimated cost was around $300 million, and later $1.05 billion. It was noted for its large delay in construction and large over cost (over $1 billion). The project's cost overshadowed the replacement of the Cypress Freeway portion of Interstate 880.<ref name=":2">{{Cite news |date=2007-08-25 |title=The Benicia Bridge |url=http://www.timesheraldonline.com/ci_6719312 |url-status=dead |archive-url=https://web.archive.org/web/20120205193603/http://www.timesheraldonline.com/ci_6719312 |archive-date=2012-02-05 |access-date=2007-08-25 |publisher=Vallejo Times Herald}}</ref><ref name=":3">{{Cite news |date=2007-08-25 |title=First cars drive over new Benicia Bridge |url=http://www.mercurynews.com/breakingnews/ci_6719613 |access-date=2007-09-03 |work=San Jose Mercury News}}</ref>

The new bridge opened at 10:30pm on August 25, 2007.<ref name=":2" /><ref name=":3" /> It was named the '''Congressman George Miller Benicia–Martinez Bridge''' after U.S. Congressman George Miller III, Miller Jr.'s son.<ref name="bridgename" />

==Tolling== [[File:Benicia–Martinez Bridge 2025 (cropped).jpg|left|thumb|Wide view of the bridge from an approaching ''Capitol Corridor'' train in 2025]] Tolls are only collected from northbound traffic headed to Benicia at the toll plaza on the Martinez side of the bridge. All-electronic tolling has been in effect since 2020, and drivers may either pay using the FasTrak electronic toll collection device or using the license plate tolling program.{{Citation needed|date=May 2026}}

This was the first bridge in California to use an open road tolling system, and the first open road tolling facility in Northern California. The toll plaza has nine lanes with remaining unused toll booths and another nine lanes with open road tolling in two zones: one zone has two travel lanes and four shoulder lanes, and the other zone has one designated carpool travel lane with two shoulder lanes. Until the remaining unused toll booths are removed, drivers in those lanes are forced to slow substantially from freeway speeds while passing through.{{Citation needed|date=May 2026}}

Effective {{Start and end dates|2026|01|01|2026|12|31}}, the toll rate for passenger cars is $8.50. During peak traffic hours on weekdays between 5:00 am and 10:00 am, and between 3:00 pm and 7:00 pm, carpool vehicles carrying three or more people or motorcycles may pay a discounted toll of $4.25 if they use the designated carpool lane with a FasTrak ''Flex'' transponder with its switch set to indicate the number of the vehicle's occupants (1, 2, or 3+). Two-person carpools may still use the carpool lane but will still be charged the full toll. Drivers without Fastrak or a license plate account must open and pay via a "short term" account within 48 hours after crossing the bridge or they will be sent an invoice of the unpaid toll. No additional toll violation penalty will be assessed if the invoice is paid within 21 days.<ref>{{cite web|date=December 1, 2025|title=50-cent Toll Hike on Tap at Seven Bay Area Bridges|url=https://www.bayareafastrak.org/en/cms/news-detail-article31.shtml|website=www.bayareafastrak.org|publisher=CalTrans|access-date=January 1, 2026}}</ref><ref>{{Cite web|title=Benicia–Martinez Bridge|url=https://www.bayareafastrak.org/en/toll-locations/benicia-martinez-bridge.shtml|website=www.bayareafastrak.org|publisher=CalTrans|access-date=January 1, 2026}}</ref><ref>{{cite web|title=Ways to Pay|url=https://www.bayareafastrak.org/en/home/ways-to-pay.shtml|website=www.bayareafastrak.org|publisher=CalTrans|access-date=January 12, 2025}}</ref><ref>{{cite web|title=Invoices and Penalties|url=https://www.bayareafastrak.org/en/help/invoices-and-penalties-faqs.shtml|website=www.bayareafastrak.org|publisher=CalTrans|access-date=January 12, 2025}}</ref>

===Historical toll rates=== When the Benicia–Martinez Bridge opened in 1962, tolls were $0.25 per car ({{inflation|US|0.25|1962|r=2|fmt=eq}}). It was set to $0.35 in 1970 ({{inflation|US|0.35|1970|r=2|fmt=eq}}), then increased to $0.40 in 1976 ({{inflation|US|0.40|1976|r=2|fmt=eq}}).<ref>{{Cite web|url=http://www.dot.ca.gov/dist4/documents/tollfees.pdf|title=History of California's Bridge Tolls | publisher=Caltrans|access-date=June 3, 2018}}</ref>

The basic toll (for automobiles) on the seven state-owned bridges, including the Benicia–Martinez Bridge, was standardized to $1 by Regional Measure 1, approved by Bay Area voters in 1988 ({{inflation|US|1|1988|r=2|fmt=eq}}).<ref>{{cite web |url = http://bata.mtc.ca.gov/projects/rm1.htm |title = Regional Measure 1 Toll Bridge Program |publisher = Bay Area Toll Authority |archive-url = https://web.archive.org/web/20101104094253/http://bata.mtc.ca.gov/projects/rm1.htm |url-status = dead |archive-date = November 4, 2010 }}</ref> A $1 seismic retrofit surcharge was added in 1998 by the state legislature, increasing the toll to $2 ({{inflation|US|2|1998|r=2|fmt=eq}}), originally for eight years, but since then extended to December 2037 (AB1171, October 2001).<ref name='AB1171'>{{cite news|first=John |last=Dutra |title=AB 1171 Assembly Bill – Chaptered |date=October 14, 2001 |publisher=California State Assembly |url=https://www.leginfo.ca.gov/pub/01-02/bill/asm/ab_1151-1200/ab_1171_bill_20011014_chaptered.html |access-date=August 7, 2008 |archive-url=https://web.archive.org/web/20120315184435/https://www.leginfo.ca.gov/pub/01-02/bill/asm/ab_1151-1200/ab_1171_bill_20011014_chaptered.html |archive-date=March 15, 2012 |url-status=live }}</ref> On March 2, 2004, voters approved Regional Measure 2 to fund various transportation improvement projects, raising the toll by another dollar to $3 ({{inflation|US|3.00|2004|r=2|fmt=eq}}). An additional dollar was added to the toll starting January 1, 2007, to cover cost overruns on the eastern span replacement of the Bay Bridge, increasing the toll to $4 ({{inflation|US|4|2007|r=2|fmt=eq}}).<ref>{{cite web |last=Cabanatuan |first=Michael |title=$1 toll hike for bridges approved |url=https://www.sfgate.com/news/article/1-toll-hike-for-bridges-approved-2505984.php |website=sfgate.com | date=January 25, 2006 | access-date=January 2, 2025}}</ref>

The Metropolitan Transportation Commission (MTC), a regional transportation agency, in its capacity as the Bay Area Toll Authority, administers RM1 and RM2 funds, a significant portion of which are allocated to public transit capital improvements and operating subsidies in the transportation corridors served by the bridges. Caltrans administers the "second dollar" seismic surcharge, and receives some of the MTC-administered funds to perform other maintenance work on the bridges. The state legislature created the Bay Area Toll Authority in 1997 to transfer the toll administration of the seven state-owned bridges to the MTC. The Bay Area Toll Authority is made up of appointed officials put in place by various city and county governments, and is not subject to direct voter oversight.<ref>{{cite web|title=About MTC |publisher=Metropolitan Transportation Commission |date=October 15, 2009 |url=https://www.mtc.ca.gov/about_mtc/about.htm |access-date=October 15, 2009 |archive-url=https://web.archive.org/web/20101103124604/https://www.mtc.ca.gov/about_mtc/about.htm |archive-date=November 3, 2010 |url-status=live }}</ref>

Due to further funding shortages for seismic retrofit projects, the Bay Area Toll Authority again raised tolls on all seven of the state-owned bridges in July 2010. The toll rate for autos on the Benicia–Martinez Bridge was thus increased to $5 ({{inflation|US|5.00|2010|r=2|fmt=eq}}).<ref>{{cite web |title=Frequently Asked Toll Questions |publisher=Bay Area Toll Authority |date=June 1, 2010 |url=https://www.mtc.ca.gov/tolls/faq.htm#2 |access-date=June 29, 2010 |archive-url=https://web.archive.org/web/20101122040153/https://www.mtc.ca.gov/tolls/faq.htm#2 |archive-date=November 22, 2010 |url-status=live }}</ref>

In June 2018, Bay Area voters approved Regional Measure 3 to further raise the tolls on all seven of the state-owned bridges to fund $4.5 billion worth of transportation improvements in the area.<ref>{{Cite news|url=https://www.sfgate.com/bayarea/article/3-hike-to-Bay-Area-tolls-appears-to-have-support-12972027.php|title=Regional Measure 3: Work on transportation improvements could start next year|first=Michael|last=Cabanatuan|publisher=SFGate.com|date=June 6, 2018}}</ref><ref>{{Cite news|url=http://www.ktvu.com/news/bay-area-bridge-tolls-to-increase-one-dollar-in-january-except-golden-gate|title=Bay Area bridge tolls to increase one dollar in January, except Golden Gate|first=Christien|last=Kafton|publisher=KTVU|date=November 28, 2018}}</ref> Under the passed measure, the toll rate for autos on the Benicia–Martinez Bridge was increased to $6 on January 1, 2019; to $7 on January 1, 2022; and then to $8 on January 1, 2025.<ref>{{Cite press release|url=https://mtc.ca.gov/whats-happening/news/tolls-seven-bay-area-bridges-set-rise-next-month|title=Tolls on Seven Bay Area Bridges Set to Rise Next Month|publisher=Metropolitan Transportation Commission|date=December 11, 2018|access-date=December 16, 2018}}</ref>

In September 2019, the MTC approved a $4 million plan to eliminate toll takers and convert all seven of the state-owned bridges to all-electronic tolling, citing that 80 percent of drivers are now using FasTrak and the change would improve traffic flow.<ref>{{Cite news|url=https://www.sacbee.com/news/california/article234765937.html|title=Do you drive to the Bay Area? A big change is coming to toll booths at the bridges|first=Darrell|last=Smith|newspaper=The Sacramento Bee|date=September 7, 2019|access-date=April 12, 2020}}</ref> On March 20, 2020, accelerated by the COVID-19 pandemic, all-electronic tolling was placed in effect for all seven state-owned toll bridges.<ref>{{Cite web|url=https://mtc.ca.gov/whats-happening/news/cash-toll-collection-suspended-bay-area-bridges|title=Cash Toll Collection Suspended at Bay Area Bridges|date=March 20, 2020|website=Metropolitan Transportation Commission|language=en|access-date=March 20, 2020}}</ref> The MTC then installed new systems at all seven bridges to make them permanently cashless by the start of 2021.<ref>{{Cite web|url=https://mtc.ca.gov/news/new-year-brings-new-toll-collection-system-bay-area-bridges|title=New Year Brings New Toll Collection System to Bay Area Bridges|date=December 28, 2020|website=Metropolitan Transportation Commission|language=en|access-date=December 28, 2020}}</ref> In April 2022, the Bay Area Toll Authority announced plans to remove all remaining unused toll booths and create an open-road tolling system which functions at highway speeds.<ref>{{Cite web|last1=Cabanatuan|first1=Michael|title=Bay Area toll collectors are gone, so what happens to the tollbooths? Here's the $77 million answer|url=https://www.sfchronicle.com/bayarea/article/Bay-Area-toll-collectors-vanished-when-COVID-hit-17068234.php|publisher=San Francisco Chronicle|access-date=12 April 2022|date=10 April 2022}}</ref>

The Bay Area Toll Authority then approved a plan in December 2024 to implement 50-cent annual toll increases on all seven state-owned bridges between 2026 and 2030 to help pay for bridge maintenance. The standard toll rate for autos will thus rise to $8.50 on January 1, 2026; $9 in 2027; $9.50 in 2028; $10 in 2029; and then to $10.50 in 2030. And becoming effective in 2027, a 25-cent surcharge will be added to any toll charged to a license plate account, and a 1 dollar surcharge added to a toll violation invoice, due to the added cost of processing these payment methods.<ref>{{cite press release | url=https://mtc.ca.gov/news/toll-authority-approves-2026-toll-hike-carpool-policy-changes | title=Toll Authority Approves 2026 Toll Hike, Carpool Policy Changes | publisher=Metropolitan Transportation Commission | date=December 18, 2024 | access-date=January 2, 2025}}</ref><ref>{{cite web |last=Vaziri |first=Aidin |title=Bay Area bridge tolls to rise by up to $4.50 over the next five years |url=https://www.sfchronicle.com/bayarea/article/bay-area-bridge-toll-hikes-19990879.php |publisher=San Francisco Chronicle | date=December 19, 2024 | access-date=January 2, 2025}}</ref>

==See also== *California Pacific Railroad *Carquinez Bridge *{{Portal-inline|Transport}} *{{Portal-inline|Engineering}} *{{Portal-inline|California}} *{{Portal-inline|San Francisco Bay Area}}

==References== {{Reflist}}

==External links== {{Commons category}}

* [http://www.bayareafastrak.org/ Bay Area FasTrak] – includes toll information on this and the other Bay Area toll facilities

* [https://web.archive.org/web/20050107115622/http://www.dot.ca.gov/hq/traffops/hwybrdg/tollbridge/History/Benicia.html California Dept. of Transportation: Benicia–Martinez Bridge History & Information] * [http://www.dot.ca.gov/dist4/benicia/ Caltrans' New Benicia–Martinez Bridge project page] * [https://web.archive.org/web/20050312015029/http://www.earthmech.com/benicia%20martinez.htm Earth Mechanics Inc. Benicia bridge project page] - geotechnical engineer for the new bridge * [https://web.archive.org/web/20060618131733/http://www.contracostatimes.com/mld/cctimes/email/news/11284787.htm Benicia–Martinez Bridge may cost millions more] - Contra Costa Times article about technical difficulties * {{Structurae|id=20000654|title=Benicia–Martinez Bridge (1962)}} * {{Structurae|id=20021811|title=Benicia Martinez Bridge (2007)}}

{{Crossings navbox |structure = Crossings |place = Carquinez Strait |bridge = Benicia–Martinez Bridge |bridge signs = 24px|Interstate 680 |upstream = Rio Vista Bridge (Sacramento River) 25x20px|State Route 12 ---- Antioch Bridge (San Joaquin River) 25px|State Route 160 |upstream signs = |downstream = Carquinez Bridge |downstream signs = 20px|Interstate 80 }} {{SF Bay Area}} {{San Francisco Bay watershed}} {{Authority control}}

{{DEFAULTSORT:Benicia-Martinez Bridge}} Category:Benicia, California Category:Bicyclable and walkable bridges on the Interstate Highway System Category:Bridges completed in 1930 Category:Bridges completed in 1962 Category:Bridges completed in 2007 Category:Bridges in Contra Costa County, California Category:Bridges in Solano County, California Category:Bridges in the San Francisco Bay Area Category:Carquinez Strait Category:Interstate 80 Category:Martinez, California Category:Railroad bridges in California Category:Road bridges in California Category:San Francisco Bay Category:San Francisco Bay Trail Category:Steel bridges in the United States Category:Toll bridges in California Category:Tolled sections of Interstate Highways Category:Truss bridges in the United States Category:Union Pacific Railroad bridges Category:Vertical lift bridges in California