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Hydraulic cylinders support the Fremont Street rooftop park at the Salesforce Transit Center in San Francisco, California on Tuesday, October 2, 2018.
Hydraulic cylinders support the Fremont Street rooftop park at the Salesforce Transit Center in San Francisco, California on Tuesday, October 2, 2018.
Photo: Scott Strazzante / The Chronicle
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The Salesforce Transit Center, Beale Street, was closed Wednesday, September 26, 2018 in San Francisco, California.
The Salesforce Transit Center, Beale Street, was closed Wednesday, September 26, 2018 in San Francisco, California.
Photo: Paul Kuroda / Special to the chronicle
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Construction crews unravel a section of the third-level bus terminal inside the Transbay Terminal in San Francisco, California, on Tuesday, September 25, 2018 after an apparent crack was reported in a girder beam. steel.
Construction crews unravel a section of the third-level bus terminal inside the Transbay Terminal in San Francisco, California, on Tuesday, September 25, 2018 after an apparent crack was reported in a girder beam. steel.
Photo: Jessica Christian / The Chronicle
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A construction worker inspects part of the roof inside the third-level bus terminal of the Transbay terminal after reports of a crack in a steel beam at the Transbay terminal, near Fremont and Mission Streets in San Francisco, California, Tuesday, September 25, 2018. Less
A construction worker inspects a portion of the roof of the third-level bus terminal of the Transbay Terminal after being informed of a crack in a steel beam at Transbay Terminal, near Fremont Streets and .. . more
Photo: Jessica Christian / The Chronicle
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An area of the third-level bus terminal at Transbay Terminal is closed view after reports of a crack in a steel beam at Transbay Terminal, near Fremont Street and Mission, San Francisco , California, Tuesday, September 25, 2018. less
An area of the third-level bus terminal at Transbay Terminal is closed view after reports of a crack in a steel beam at Transbay Terminal near Fremont Street and Mission in San Francisco. in California. … more
Photo: Jessica Christian / The Chronicle
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A San Francisco police officer is directing traffic to Beale and Howard after the closing of the SalesForce Transit Center in San Francisco, California on Tuesday, September 25, 2018.
A San Francisco police officer is directing traffic to Beale and Howard after the closing of the SalesForce Transit Center in San Francisco, California on Tuesday, September 25, 2018.
Photo: Yalonda M. James / The Chronicle
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Buses will travel to the Fremont and Folsom Temporary Transit Center on Wednesday, September 26, 2018 in San Francisco, California.
Buses will travel to the Fremont and Folsom Temporary Transit Center on Wednesday, September 26, 2018 in San Francisco, California.
Photo: Paul Kuroda / Special to the chronicle
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Pedestrians walk near Fremont and Mission in front of the Transbay Transit Center on Wednesday, September 26, 2018, in San Francisco, California. A crack was discovered yesterday in a steel beam that supports the rooftop terrace of the $ 2.2 billion Transbay Transit Center transit center in downtown San Francisco. Less
Pedestrians walk near Fremont and Mission in front of the Transbay Transit Center on Wednesday, September 26, 2018, in San Francisco, California. A crack was discovered yesterday in a steel beam that supports the roof … more
Photo: Yalonda M. James / The Chronicle
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The Salesforce Transit Center, Beale Street, was closed Wednesday, September 26, 2018 in San Francisco, California.
The Salesforce Transit Center, Beale Street, was closed Wednesday, September 26, 2018 in San Francisco, California.
Photo: Paul Kuroda / Special to the chronicle
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Construction crews unravel a section of the third-level bus terminal inside the Transbay Terminal in San Francisco, California, on Tuesday, September 25, 2018 after an apparent crack was reported in a girder beam. steel.
Construction crews unravel a section of the third-level bus terminal inside the Transbay Terminal in San Francisco, California, on Tuesday, September 25, 2018 after an apparent crack was reported in a girder beam. steel.
Photo: Jessica Christian / The Chronicle
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Construction crews unravel a section of the third-level bus terminal inside the Transbay Terminal in San Francisco, California, on Tuesday, September 25, 2018 after an apparent crack was reported in a girder beam. steel.
Construction crews unravel a section of the third-level bus terminal inside the Transbay Terminal in San Francisco, California, on Tuesday, September 25, 2018 after an apparent crack was reported in a girder beam. steel.
Photo: Jessica Christian / The Chronicle
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Road closure signs were installed at the intersection of Fremont and Howard after the closing of the Transbay Transit Center in San Francisco, California, on Tuesday, September 25, 2018. A major crack was discovered in a beam in steel that supports the new $ 2.2 billion center in downtown San Francisco. Less
Road closure signs were installed at the intersection of Fremont and Howard after the closure of the Transbay Transit Center in San Francisco, California on Tuesday, September 25, 2018. A major crack was discovered … more
Photo: Yalonda M. James / The Chronicle
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Carlos Guzman, an employee of the CMC's traffic control specialists, attaches a police tape to a post at Fremont and Howard after the closing of the Transbay Transit Center in San Francisco, California on Tuesday, September 25, 2018. A major crack has was discovered on a steel beam that supports the roof terrace of the new $ 2.2 billion center in downtown San Francisco. Less
Carlos Guzman, an employee of traffic control specialists at the CMC, attaches a police tape to a post at Fremont and Howard after the closing of the Transbay Transit Center in San Francisco, California on Tuesday … more
Photo: Yalonda M. James / The Chronicle
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The perimeter around the Transbay Transit Center is registered in San Francisco, California, on Tuesday, September 25, 2018. A major crack was discovered in a steel beam that supports the rooftop of the new $ 2.2 billion center located in downtown San Francisco. Less
The perimeter around the Transbay Transit Center is stuck in San Francisco, California on Tuesday, September 25, 2018. A major crack was discovered in a steel beam that supports the roof terrace of the new … more
Photo: Yalonda M. James / The Chronicle
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Bus route numbers are posted on a post after the closing of the SalesForce Transit Center in San Francisco, California on Tuesday, September 25, 2018.
Bus route numbers are posted on a post after the closing of the SalesForce Transit Center in San Francisco, California on Tuesday, September 25, 2018.
Photo: Yalonda M. James / The Chronicle
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Muni buses arrive on Howard Street outside the temporary Transit Center on Main Street and Howard Street on Wednesday, September 26, 2018, in San Francisco, California.
Muni buses arrive on Howard Street outside the temporary Transit Center on Main Street and Howard Street on Wednesday, September 26, 2018, in San Francisco, California.
Photo: Paul Kuroda / Special to the chronicle
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People line up to take a bus to Transbay's temporary terminal after the closing of the SalesForce Transit Center in San Francisco, California on Tuesday, September 25, 2018.
People line up to take a bus to Transbay's temporary terminal after the closing of the SalesForce Transit Center in San Francisco, California on Tuesday, September 25, 2018.
Photo: Yalonda M. James / The Chronicle
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An SFMTA team is working on the site after the closing of the SalesForce Transit Center in San Francisco, California on Tuesday, September 25, 2018.
An SFMTA team is working on the site after the closing of the SalesForce Transit Center in San Francisco, California on Tuesday, September 25, 2018.
Photo: Yalonda M. James / The Chronicle
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The Salesforce Transit Center, Beale Street, was closed Wednesday, September 26, 2018 in San Francisco, California.
The Salesforce Transit Center, Beale Street, was closed Wednesday, September 26, 2018 in San Francisco, California.
Photo: Paul Kuroda / Special to the chronicle
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The San Francisco Police Officer, K. Larkey, talks to a pedestrian after the closing of the SalesForce Transit Center in San Francisco, California on Tuesday, September 25, 2018.
The San Francisco Police Officer, K. Larkey, talks to a pedestrian after the closing of the SalesForce Transit Center in San Francisco, California on Tuesday, September 25, 2018.
Photo: Yalonda M. James / The Chronicle
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An SFMTA team is working on the site after the closing of the SalesForce Transit Center in San Francisco, California on Tuesday, September 25, 2018.
An SFMTA team is working on the site after the closing of the SalesForce Transit Center in San Francisco, California on Tuesday, September 25, 2018.
Photo: Yalonda M. James / The Chronicle
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A traffic officer in charge of the SFMTA directs traffic to Fremont and Howard, near the Transbay Transit Center, on Wednesday, September 26, 2018, in San Francisco, California. A crack was discovered yesterday in a steel beam that supports the rooftop terrace of the new fund of $ 2.2 billion. Transbay Transit Center in downtown San Francisco. Less
A traffic officer at SFMTA directs traffic to Fremont and Howard, near the Transbay Transit Center, on Wednesday, September 26, 2018, in San Francisco, California. A crack was discovered yesterday in … more
Photo: Yalonda M James / The Chronicle
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The Transbay Transit Center, located in Howard and Fremont, is closed Wednesday, September 26, 2018 in San Francisco, California. A crack was discovered yesterday in a steel beam that supports the rooftop terrace of the $ 2.2 billion Transbay Transit Center transit center in downtown San Francisco. Less
The Transbay Transit Center, located in Howard and Fremont, is closed Wednesday, September 26, 2018 in San Francisco, California. A crack was discovered yesterday in a steel beam that supports … more
Photo: Yalonda M James / The Chronicle
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A pedestrian crosses Beale Street at Howard Street after the closing of the SalesForce Transit Center in San Francisco, California on Tuesday, September 25, 2018.
A pedestrian crosses Beale Street at Howard Street after the closing of the SalesForce Transit Center in San Francisco, California on Tuesday, September 25, 2018.
Photo: Yalonda M. James / The Chronicle
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The Salesforce Transit Center, Beale Street, was closed Wednesday, September 26, 2018 in San Francisco, California.
The Salesforce Transit Center, Beale Street, was closed Wednesday, September 26, 2018 in San Francisco, California.
Photo: Paul Kuroda, Chronic Special
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Photo: Scott Strazzante / The Chronicle
Hydraulic cylinders support the Fremont Street rooftop park at the Salesforce Transit Center in San Francisco, California on Tuesday, October 2, 2018.
Hydraulic cylinders support the Fremont Street rooftop park at the Salesforce Transit Center in San Francisco, California on Tuesday, October 2, 2018.
Photo: Scott Strazzante / The Chronicle
Fremont Street to reopen after repair of Transbay Transit Center Monday
San Francisco's suburbanites will receive a gift for the week of the start of work on Monday, when the Fremont Street portion that passes under the damaged Transbay transit center will be open to traffic, Transbay officials said Sunday.
The opening of Fremont, between Howard and Mission Streets, comes nearly three weeks after the cracking of steel beams over the highway. The street was originally scheduled to open on Friday, but the authorities ordered a delay, while the workers reinforced the structure under the two broken beams.
Transbay's Joint Powers Authority announced on Sunday that workers had crossed four levels, including the third-floor bridge and an underground railway station, on the east side of the $ 2.2-billion transit center.
The discovery on 25 September of cracks in two critical support beams prompted the authorities to close the transit center and its rooftop park just six weeks after the grand opening.
The street was closed to what officials described as "a lot of caution".
Construction crews installed temporary supports to relieve cracked beams over Fremont Street and then reinforced other levels. Transbay officials also used hydraulic jacks and support beams to wedge the other side of the center, above First Street, but no cracks were found in this area.
The plan now is to take samples of the metal girders so that the engineers can test them and, hopefully, find out why they have cracked and then come up with a repair plan.
Beam repairs may take several weeks and buses will not cross the center before the work is completed, but Transbay officials say the rooftop park could reopen early in November.
Peter Fimrite is a writer at the San Francisco Chronicle. Email: [email protected] Twitter: @pfimrite
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