Richmond–San Rafael Bridge

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The Richmond–San Rafael Bridge (officially renamed the John F. McCarthy Memorial Bridge in 1981<ref>2013 Named Freeways, Highways, Structures and Other Appurtenances in California, California Department of Transportation, 2021</ref>) is the northernmost of the east–west crossings of California's San Francisco Bay, carrying Interstate 580 from Richmond on the east to San Rafael on the west. It opened in 1956, replacing the ferry service by the Richmond–San Rafael Ferry Company,<ref name="quarry">Template:Cite book</ref> and was officially renamed in 1981 to honor California State Senator John F. McCarthy, who championed the bridge's creation.<ref>Template:Cite news</ref>

History

Early proposals

Proposals for a bridge were advanced in the 1920s, preceding the completion of the Golden Gate Bridge. In 1927, Roy O. Long of The Richmond–San Rafael Bridge, Incorporated, applied for a franchise to construct and operate a private toll bridge. The proposed 1927 Long bridge would have been a steel suspension bridge, carrying a Template:Convert roadway for a distance of Template:Convert at an estimated construction cost of Template:US$. The bridge would afford a maximum vertical clearance of Template:Convert with a Template:Convert main span.<ref>Template:Cite news</ref> Charles Derleth Jr. was selected as the consulting engineer, after having served in that role for the recently completed Carquinez Bridge.<ref>Template:Cite news</ref> The Long bridge would have spanned San Pablo Bay between Point Orient (in Contra Costa County) to just below McNear's Point (in Marin County), and Long was granted the franchise in February 1928 by the Contra Costa County Board of Supervisors.<ref name=SN-19280211>Template:Cite news</ref>

A competing proposed bridge also came out in 1927, from Charles Van Damme of the Richmond-San Rafael Ferry Company. The 1927 Van Damme bridge would have carried a Template:Convert roadway for a distance of Template:Convert at an identical estimated construction cost of Template:US$.<ref name=SN-19271231>Template:Cite news</ref> It would have spanned San Pablo Bay from Castro Point (Contra Costa County) to Point San Quentin (Marin County), approximately the same routing as the eventually completed 1956 bridge.<ref name=SN-19280211 /> Although the 1927 Long bridge had been granted a franchise in February 1928, Van Damme subsequently petitioned to reopen the case, since the ferry company owned the land at the proposed eastern terminus and therefore should have been favored in the franchise selection process.<ref name=SN-19280331>Template:Cite news</ref> Also, since the ferry company's franchise rights were not set to expire until the 1950s, Long's 1927 bridge cost would have increased to reimburse losses to ferry revenues.<ref name=SN-19271231 /> Soon after winning the franchise rights, Long approached Van Damme with an offer to buy the Richmond-San Rafael Ferry Company for Template:US$.<ref>Template:Cite news</ref>

Van Damme and Long later agreed in September 1928 to merge their interests for a combined bridge proposal between Point San Pablo (Contra Costa County) and McNear's Point (Marin County).<ref name=SN-19280928>Template:Cite news</ref> The combined project, now headed by Oscar Klatt for the American Toll Bridge Company, received approval for the routing from then-Secretary of War Good in May 1929, although vertical and horizontal clearances for the proposed bridge were not fully established at the time.<ref>Template:Cite news</ref> In November 1929, vertical clearance had been increased to Template:Convert to satisfy Navy requirements.<ref>Template:Cite news</ref> The construction permit was issued in February 1930.<ref>Template:Cite news</ref>

Klatt's 1929 bridge was dormant for nearly a decade following the issuance of a construction permit in 1930. An extension was filed in 1938 to allow construction to start as late as February 1942,<ref>Template:Cite news</ref> and fresh plans for a bridge district to facilitate financing were announced in 1939.<ref>Template:Cite news</ref> In 1947, interest was revived in bridging Marin and Contra Costa Counties.<ref>Template:Cite news</ref>

Tomasini's San Francisco–Alameda–Marin crossings

A third bridge was proposed in late 1927 by the enigmatic T.A. Tomasini.<ref>Thomas A. Tomasini, resident in San Francisco, is also noted as the inventor of the 1916 Template:Patent as well as being a participant in the 1915 automobile Vanderbilt Cup Race, where he did not start due to crashing in practice.</ref> Tomasini's 1927 bridge called for two lanes of automobile traffic straddling a central rail line from San Pedro Hill (Marin) to San Pablo station (Contra Costa), a distance of over Template:Convert.<ref>Template:Cite news</ref> In 1928, Tomasini presented a revised proposal for a bridge farther south than the other two bridges—spanning the water from Albany (in Alameda County) to Tiburon. The 1928 Tomasini Albany–Tiburon bridge was the longest of the three proposed bridges by a significant margin.<ref name=SN-19280331 /><ref>Template:Cite news</ref> The proposed Albany–Tiburon bridge would have been similar in concept to the 1967 San Mateo–Hayward Bridge, with a high-level western section approximately Template:Convert long transitioning to a low-level eastern causeway. The western section featured two Template:Convert spans to cross the navigation channels, with the western navigation span having a minimum vertical clearance of Template:Convert and the eastern navigation span having a minimum vertical clearance of Template:Convert.<ref name=SN-19280921 /> The Template:Convert navigation channels for the proposed Albany–Tiburon bridge were opposed by shipping interests, who wanted the channels to be Template:Convert wide instead. The cost of the longer spans required would have made the proposed Albany–Tiburon bridge impractical, and Tomasini argued that "any mariner who could not negotiate a bridge such as proposed should lose his license."<ref>Template:Cite news</ref>

Tomasini's proposed 1928 San Francisco Bay crossings, shown in orange. Red bridges are those that were built, including the 1956 Richmond–San Rafael Bridge (1). 1937 Golden Gate Bridge (2), and 1936 San Francisco-Oakland Bay Bridge (3) . Template:Ordered list

Tomasini would later add a bridge spanning Richardson Bay in March 1928 from Sausalito to Belvedere to his proposal.<ref name=SN-19280928 /> The additional Sausalito–Belvedere bridge would have been Template:Convert long and Template:Convert wide with a lift span to allow the passage of large vessels, at an estimated cost of Template:US$.<ref>Template:Cite news</ref><ref name=SN-19280421>Template:Cite news</ref> Meanwhile, in April 1928 Tomasini recruited the prominent Ralph Modjeski to serve as the consulting head engineer for the proposed Albany–Tiburon span,<ref>Template:Cite news</ref> and Modjeski promptly complimented the plans that had been drawn up by Tomasini's chief engineer, Erle L. Cope.<ref name=SN-19280421 /> The design for a lift span in the proposed Sausalito–Belvedere bridge was changed to a bascule after public comments were received from a local shipbuilder.<ref name=SN-19280914>Template:Cite news</ref> Tomasini received a permit for the Sausalito–Belvedere bridge from the War Department in December 1928.<ref>Template:Cite news</ref> Tomasini had planned to commence construction of the Sausalito–Belvedere bridge in July 1930,<ref>Template:Cite news</ref> but he was met with opposition from the Tiburon-Belvedere Chamber of Commerce, who felt the creation of a bridge would eliminate the promised San Francisco-Tiburon ferry service.<ref>Template:Cite news</ref> In 1931, the Richardson Bay Redwood Bridge was opened, which was the largest structure in the world constructed of redwood.<ref>Template:Cite news</ref> The Redwood Bridge carried the Redwood Highway (present-day US 101) and spanned the upper reach of Richardson Bay,<ref>Template:Cite journal</ref> eliminating some of the need for the proposed Sausalito–Belvedere bridge. The Redwood Bridge would be replaced by a concrete structure in the 1950s.<ref>Template:Cite news</ref>

Tomasini continued to add to the project scope in July 1928 by proposing a bridge and tunnel to join San Francisco to the proposed Albany–Tiburon bridge. The tunnel would run roughly northeast from Bay Street and Grant Avenue, not far from present-day Pier 39, at a depth of Template:Convert below low tide water level for Template:Convert. At that point, the tunnel would surface northwest of Goat Island, and then transition to a bridge nearly Template:Convert long with a minimum vertical clearance of Template:Convert and two lift spans connecting to the proposed Albany–Tiburon bridge. The cost of the entire project was Template:US$, split as Template:US$ for the Albany–Tiburon bridge, Template:US$ for the Sausalito–Belvedere bridge, and Template:US$ for the San Francisco–Marin–Alameda tunnel and bridge.<ref name=SN-19280713>Template:Cite news</ref> Tomasini organized each of the three proposed structures as independent projects, preferably to be built simultaneously, but in the event that one was not approved, it would not delay the construction of the other two.<ref name=SN-19280713 /> San Francisco's board of supervisors rejected Tomasini's San Francisco–Marin–Alameda tunnel and bridge in September 1928, although the board's action was non-binding.<ref name=SN-19280921>Template:Cite news</ref>

Aerial photo of the bridge and the surrounding area

By February 1932, Tomasini's proposed Albany–Tiburon bridge had changed to a combination bridge—tunnel. The bridge portion was a low trestle approximately Template:Convert long, extending westward from Point Fleming in Albany in Alameda County. The proposed tunnel would have been Template:Convert long and ventilated by four towers, emerging at Bluff Point near Tiburon in Marin County.<ref name=MDT-19320716>Template:Cite news</ref> Total estimated cost for the two structures was now Template:US$ and despite opposition from the US Navy, who cited potential navigation hazards,<ref>Template:Cite news</ref> the bridge—tunnel was approved by the War Department in July 1932.<ref name=MDT-19320716 /> Although he had the permit to begin work, Tomasini filed numerous annual extensions to retain the rights through 1941,<ref>Template:Cite news</ref> apparently due to a lack of funding to start work. Tomasini was still scrambling for funding in August 1941, seeking the issue of bonds worth Template:US$.<ref>Template:Cite news</ref> Tomasini lost the rights to the crossing in October 1941,<ref>Template:Cite news</ref> which was not the first time he was opposed by Earl Warren, who had questioned the validity of Tomasini's franchise as early as 1933.<ref>Template:Cite news</ref> Still, Tomasini was doggedly trying to advance his plans as late as 1948.<ref>Template:Cite news</ref>

Construction: 1953–1957

Aerial photo of the bay

In 1949, the County of Marin and the City of Richmond commissioned a preliminary engineering report from Earl and Wright of San Francisco, which concluded that a bridge would be feasible.<ref name=CHPW1953>Template:Cite journal</ref> A follow-up 1950 study, conducted by the Division of San Francisco Bay Toll Crossings, was commissioned by Marin County and the City of Richmond using Template:US$ in state funding. The 1950 report concluded the bridge could be built in accordance with the California Toll Bridge Authority Act.<ref name=CHPW1953 /> The preliminary design was approved on August 8, 1951 and California approved the preliminary report on November 27, 1951. The California Toll Bridge Authority authorized the issue of Template:US$ in bonds on November 7, 1952 and subsequently sold Template:US$ on February 26, 1953 to construct a single-deck bridge. The remaining Template:US$ was reserved for construction contingencies and to complete the lower deck of the bridge.<ref name=CHPW1956-0708 /> The $62 million raised from bond sales was divided into three parts: Template:US$ for construction, Template:US$ to address interest obligations on the bonds during the construction period, and Template:US$ in construction contingency.<ref name=CHPW1956-0708 /> In 1954, Governor Knight declared the second deck should not be delayed in the public interest, and Template:US$ was loaned from the State School Land Fund in 1955 to complete the second deck. The bridge was finished $4 million under budget.<ref name=BridgeTheBay />

During the study period, an earth and rock-fill bridge with lift structures was considered, but the high-level bridge was chosen as the cost of a low bridge with navigation locks and lifting structures was prohibitive.<ref name=CHPW1953 />

The majority of construction costs were tied up in two contracts that opened for bidding on December 19, 1952. The first contract, for the substructure, was awarded to the low bidder, the Ben C. Gerwick, Inc. — Peter Kiewit Sons' Co. Joint Venture for Template:US$. The second contract, for the superstructure, was awarded to the low bid of Template:US$ by a joint venture between Peter Kiewit Sons' Co. — A. Soda & Son — Judson Pacific Murphy Corp.<ref name=CHPW1953 /> The substructure construction moved rapidly, with an estimated 45% of piers completed approximately a year after the contract was awarded.<ref name=CHPW-19540304 />

The bridge with the upper deck was opened in 1956. It was dedicated on August 31, and opened for traffic on September 1 with one traffic lane per direction.<ref>Template:Cite news Template:Free access</ref> At the time, it was the world's second-longest bridge, behind the San Francisco–Oakland Bay Bridge,<ref>Template:Cite news</ref> as well as the longest continuous steel bridge.<ref>Template:Cite newsTemplate:Dead link</ref> The lower deck opened on August 20, 1957, at which point there were three lanes of traffic per direction.<ref name=SFE1957>Template:Cite news Template:Free access</ref><ref name=PT1957>Template:Cite news Template:Free access</ref>

Historical notes

Originally a part of State Route 17, the bridge is now part of Interstate 580.

Upon its opening, the Richmond–San Rafael bridge was the last bridge across San Francisco Bay to replace a previous ferry service, leaving the Benicia–Martinez Ferry across Carquinez Strait as the only remaining auto ferry in the Bay Area (it would be replaced by a bridge in 1962).

Description

Bridges in the San Francisco Bay
Vertical undulation of the Richmond–San Rafael Bridge between the two cantilever spans

The bridge—including approaches—measures 5.5 miles (29,040 feet / 8,851.39 m / 8.9 km) long. At the time it was built, it was one of the world's longest bridges. The bridge spans two ship channels and has two separate main cantilever spans. Both main cantilever spans are raised to allow ship traffic to pass, and in between, there is a "dip" in the elevation of the center section,<ref name=CSeim>Template:Cite interview</ref> giving the bridge a vertical undulation or "roller coaster" appearance and also the nickname "roller coaster span". To save money, the cantilever main spans share identical symmetric designs, so the "uphill" grade on the approach required for the elevated span is duplicated on the other "downhill" side, resulting in a depressed center truss section.<ref>Template:Cite news</ref> In addition, because the navigation channels are not parallel to each other, the bridge also does not follow a straight line.<ref>Interview with Chuck Seim (2013), p. 8 & 30. "Now, the twin spans, they were spanned by what we call a steel cantilever span. But the interesting thing is that these shipping channels were not parallel to one another. They angled."</ref> This appearance has also been referred to as a "bent coat hanger".<ref name=BridgeTheBay>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>

After it was completed, many were disappointed by the appearance of the bridge;<ref>Interview with Chuck Seim (2013), p. 20. "Of course, everybody criticized the truss bridge on the Richmond-San Rafael, that Raab designed and they said, 'We don't want an ugly truss here.' [...] Well, if you had to award the ugliest bridge in the world, I think the Richmond-San Rafael would certainly be in the running. If not the first one, then top three. It is an ugly bridge. But that's a story that maybe we shouldn't get into. It was driven by economics, and it was driven by the obstinance of this one engineer that I referred to. He wouldn't change. He then proposed a truss for the Hayward area, and everybody said, 'No, we don't want that. It's an ugly bridge.' He said, 'Well, it's the most economical.'"</ref> Frank Lloyd Wright, a famous designer who was not an engineer, reportedly called for it to be destroyed<ref name=TYLin>Template:Cite interview</ref> due to its ugliness, and complained that it was "the most awful thing I've ever seen" during its construction in 1953.<ref>Template:Cite news</ref> Contrariwise, the neighboring Golden Gate Bridge, and the western span of the Bay Bridge, had been considered engineering and historical marvels. However, the project's senior engineers were the same ones who had worked on the Bay Bridge,<ref>Interview with Chuck Seim (2013), pp. 8–10. "Everybody working on that bridge - I think it's safe to say all the higher-echelon engineers - were the same engineers that worked on the San Francisco Bay Bridge. I had a chance to work with engineers who actually worked on the San Francisco Bay Bridge, and I used to read about that when I was a kid."</ref> with their design reflecting lessons they had learned from doing so.<ref>Interview with Chuck Seim (2013), p. 30. "In 1956, the Richmond-San Rafael Bridge was opened. An interesting thing about that is that most of the senior engineers that worked on the Bay Bridge stayed over in San Francisco and worked on the Richmond-San Rafael Bridge, because they both used the same technology, with some minor variations."</ref>

From west (Point San Quentin) to east (Castro Point), the bridge consists of:<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref><ref name=CHPW-19540304>Template:Cite journal</ref>

Looking southwest from above Richmond

Excluding approaches, the bridge structures comprise a total length of Template:Convert on the upper deck and Template:Convert on the lower deck. Despite the varying height of the bridge, roadway grades are limited to 3% or less.<ref name="CHPW1953" /><ref name="CHPW-19540304" /> As completed, the bridge has two decks each capable of carrying three lanes of traffic. As of 2020, westbound traffic rides on the upper deck and is marked with two lanes of vehicle traffic, as well as a pedestrian/bicycle path separated from vehicles by a movable barrier. Eastbound traffic rides on the lower deck and features two lanes of vehicle traffic as well as a third lane that is activated during evening commute hours and serves as a shoulder when not in use. The extra lane features lights indicating that the lane is open or closed.<ref name="3rdLane" /> The third lane has been used for various purposes other than traffic, such as carrying a water pipeline during a drought.

The bridge stands on 79 reinforced concrete piers supported on steel H-piles. Nine piers stand on land, eight are in cofferdams near the Contra Costa terminus, and the remaining 62 are bell-type piers with a flared base.<ref name=CHPW-19540304 /> The original deck was a Template:Convert thick reinforced concrete slab, with a mortar wearing surface Template:Convert thick.<ref name=CHPW-19540708>Template:Cite journal</ref> To facilitate maintenance, the bridge was designed with two Template:Convert lines (carrying compressed air and potable water) extending from end to end. Each deck was also equipped with three overhead maintenance tracks.<ref name=CHPW-19540708 />

Public transit service

Golden Gate Transit bus route 580 provides public transportation across the bridge. Formerly route 40, it runs between the San Rafael Transit Center and the El Cerrito del Norte BART station.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> Golden Gate Transit Route 42, which provided service to Richmond BART/Amtrak station, was folded into route 40 in December 2015 that was later redesignated line 580, after the freeway on which it crosses the bay.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>

Tolls

Toll plaza at Richmond in 2006 before newest reconstruction

Tolls are only collected from westbound traffic headed to San Rafael at the toll plaza on the Richmond 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. It remains not truly an open road tolling system until the remaining unused toll booths are removed, forcing drivers to slow substantially from freeway speeds while passing through. Effective Template:Start and end dates, the toll rate for passenger cars is $8. 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, clean-air vehicles, or motorcycles may pay a discounted toll of $4 if they have FasTrak and use the designated carpool lane. 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>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref><ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref><ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>

Historical toll rates

The following initial toll rates were adopted on July 10, 1956, prior to the opening of the bridge:

Inaugural toll schedule<ref name=CHPW1956-0708>Template:Cite journal</ref>
Vehicle type Axles/trailers Toll
Class 1Template:Efn vehicle alone Template:US$Template:Efn
Commutation bookTemplate:EfnTemplate:Efn Template:US$
with 1-axle trailer Template:US$
with 2-axle trailer Template:US$
TruckTemplate:Efn 2-axle Template:US$
3-axle Template:US$
4-axle Template:US$
5-axle Template:US$
6-axle Template:US$
7-axle Template:US$
Bus 2-axle Template:US$
3-axle Template:US$
Other vehicles not specified above Template:US$
Inaugural toll table notes
Template:Notelist
Westbound terminus of the Richmond–San Rafael Bridge in sunset, 2006

The basic toll (for automobiles) on the seven state-owned bridges, including the Richmond–San Rafael Bridge, was standardized to $1 by Regional Measure 1, approved by Bay Area voters in 1988 (Template:Inflation).<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> A $1 seismic retrofit surcharge was added in 1998 by the state legislature, increasing the toll to $2 (Template:Inflation), originally for eight years, but since then extended to December 2037 (AB1171, October 2001).<ref name='AB1171'>Template:Cite news</ref> On March 2, 2004, voters approved Regional Measure 2 to fund various transportation improvement projects, raising the toll by another dollar to $3 (Template:Inflation). 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 (Template:Inflation).<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</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>{{#invoke:citation/CS1|citation |CitationClass=web }}</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 Richmond–San Rafael Bridge was thus increased to $5 (Template:Inflation).<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</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>Template:Cite news</ref><ref>Template:Cite news</ref> Under the passed measure, the toll rate for autos on the Richmond–San Rafael Bridge was increased to $6 on January 1, 2019; to $7 on January 1, 2022; and then to $8 on January 1, 2025.<ref>Template:Cite press release</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>Template:Cite news</ref> On March 20, 2020, accelerated by the COVID-19 pandemic, all-electronic tolling was put into effect for all seven state-owned toll bridges.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> The MTC then installed new systems at all seven bridges to make them permanently cashless by the start of 2021.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</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>{{#invoke:citation/CS1|citation |CitationClass=web }}</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 50-cent surcharge added to a toll violation invoice, due to the added cost of processing these payment methods.<ref>Template:Cite press release</ref><ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>

Improvements

Seismic retrofit

Comparison of piers at eastern cantilever span in 2003 before reconstruction (top) and at western cantilever span in 2011 after reconstruction (bottom).

In the fall of 2001, the bridge commenced an extensive seismic retrofit program,<ref name=Welcome-Retrofit>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> similar to other bridges in the area.<ref name="sfgate">Template:Cite news</ref> The retrofit was designed by a three-way joint venture between Gerwick/Sverdrup/DMJM under a Template:US$ design contract awarded in 1995.<ref name=Ger9509>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> The retrofit is intended to allow the two-tier bridge to withstand a 7.4 magnitude earthquake on the Hayward Fault and an 8.3 magnitude quake on the San Andreas Fault. The foundation piers were strengthened by wrapping the lower section of structural steel in a concrete casing, installing new shear piles, and adding bracing to the structural steel towers.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> Isolation joints and bearings were also added to the main bridge structures (cantilever spans over the navigation channels) to strengthen the structure.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>

The fifty-year-old bridge was showing its age and also needed age-related maintenance, which was performed in conjunction with the seismic upgrade work. There were reports of cars being damaged while traveling on the lower deck by fist-sized concrete chunks falling from the joints of upper deck slabs.

A major part of the retrofit involved the long concrete causeway on the Marin side, which as part of the retrofit program, was nearly completely replaced. Because of the active use of the bridge, Caltrans designed the project to allow the bridge to remain open to traffic. For economy, schedule efficiency and traffic impact mitigation, much of the repair work was fabricated off site and shipped to the bridge by barge.

To reduce impacts to traffic the major work was performed at night. Caltrans kept two lanes of traffic moving in each direction during daylight hours, then reduced that flow to a single lane in each direction at night. Thus, one trestle was completely closed, and the other trestle had two-way traffic.

The concrete segments of the trestle were precast in Petaluma and barged to the site. At monthly intervals, tugs positioned barges with one or two Template:Convert, 500-ton pre-cast concrete roadway segments, which a 900-ton barge-mounted crane lifted into place. Earlier, either two or four of the corroded, Template:Convert concrete segments of the old roadway were removed by crane. Then, a pile driver moved into position and drove new piles. After the new concrete road segment was in place, steel plates were used to temporarily fill the gaps, and the roadway was ready for morning traffic. At times, construction backed up traffic to Highway 101 into central San Rafael.

The completion of this retrofit, on September 22, 2005, was celebrated as a success despite the many challenges, including the deaths of two workers.

The retrofit was originally estimated by Caltrans engineers at Template:US$,<ref name="sfgate" /> but Caltrans adjusted the estimate to Template:US$ in 2000 during the bidding process.<ref name=Bid-Summary>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> While most of the resulting bids were close to Template:US$, the low bid came in at Template:US$ from the Tutor-Saliba/Koch/Tidewater Joint Venture.<ref name=Bid-Summary /> Caltrans revised their estimate to Template:US$ in May 2001 when more funds were appropriated for California's Toll Bridge Seismic Retrofit Program in Assembly Bill 1171.<ref>Template:Cite California statute {{#invoke:citation/CS1|citation |CitationClass=web }}</ref> The cost was again adjusted during an August 2004 review by Caltrans, this time to Template:US$.<ref name="programreport">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> The final cost of the retrofit, however, was $778 million, or $136 million below this August 2004 estimate.<ref name="programreport" />

Third lanes

The protected bike/pedestrian path on the upper deck of the bridge

In both directions, the bridge is wide enough to accommodate three lanes of traffic. The bridge previously operated with all three lanes in both directions opened to traffic after the lower deck was completed in 1957.<ref name=SFE1957 /><ref name=PT1957 /> Currently the third lane on the lower deck is used as a right-hand shoulder or a "breakdown lane" and is marked along the bridge with the signs "Emergency Parking Only". The third lane on the upper deck is a separated bicycle and pedestrian path.<ref name="bike"/>

In 1977, Marin County was suffering one of its worst droughts in history. A temporary on-surface pipeline, Template:Convert long, was placed in the third lane. The pipe transferred Template:Convert of water a day from the East Bay Municipal Utility District's mains in Richmond to Marin's 170,000 residents. By 1978, the drought subsided and the pipeline was removed. The disused third lane was then restriped as a shoulder.

In 1989, after the Loma Prieta earthquake, the third lane was opened up as a normal lane to accommodate increased traffic after the Bay Bridge was shut down because of a failure of that span.<ref>Template:Cite news Template:Free access</ref> Many commuters from San Francisco drove across the Golden Gate Bridge into Marin and then across the Richmond–San Rafael Bridge to go to Oakland (and vice versa). After the Bay Bridge was reopened, the third lane was again closed.

On February 11, 2015, the Bay Area Toll Authority approved a plan to install a protected bike and pedestrian path on the wide shoulder of the upper deck of the bridge. The path was expected to be complete in 2017,<ref name="bike">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> however it opened on November 16, 2019.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> As part of the same project, a third eastbound lane<ref>Template:Cite news</ref> was added the previous year on the lower deck to be available for evening commutes.<ref name=3rdLane>Template:Cite news</ref>

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Closures

Like most San Francisco Bay bridges, the Richmond–San Rafael is subject to closure in the event of strong crosswinds. The bridge has been closed due to wind at least three times: in 1963,<ref>Template:Cite news</ref> in the late 1970s,Template:Citation needed and in 2008.<ref>Template:Cite news</ref><ref>Template:Cite news</ref>

On February 7, 2019, the bridge was closed for several hours due to concrete falling from the upper deck to the lower.<ref>Falling concrete closes Richmond-San Rafael Bridge in both directions February 7, 2019</ref>

On July 21, 2023, the bridge was closed in the eastbound direction for more than 19 hours due to a disturbed person on the bridge; the goal of this closure was to "not cause him to jump off or cause him to fall into the water and also keeping that communication open." The bridge reopened following the man's rescue.<ref>Template:Cite news</ref>

The novel Abuse of Power by Michael Savage has several important scenes set on the bridge. In one, the hero Jack Hatfield escapes his enemies by climbing the work ladders built into the piers. In the film Magnum Force, the bridge is in the background when Dirty Harry and the rookie cop are on motorcycles on the ship's decks where they attempt to subdue each other.<ref>Scene 34. Not Enough Experience. Magnum Force</ref> The bridge is also visible in the 1982 film 48 Hours.

References

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