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| San Mateo Bridge Seismic Retrofit |
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The San Mateo Bridge Seismic Retrofit project featured 40 precast post-tensioned frame units weighing 525 tons each. The units were cast directly on barges at the precast plant and then delivered to the site in pairs. After transfer to the erection barge, the units were installed around the existing bridge piers, post-tensioned together, and then lowered into position under water onto new 12’ diameter steel piles.
Total value of the precast contract was $9 million. Follow this link to a PCI Article on the award-winning retrofit
MSK personnel estimated, engineered the casting operation, and produced the units. |
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| Sunshine Skyway Bridge |
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| The Sunshine Skyway Bridge links the cities of St Petersburg and Bradenton across the lower Tampa Bay in Florida. The entire bridge is 21,883 ft long with a 1200 ft cable-stayed main span. This span was a record for a concrete bridge in North and South America when the bridge opened to traffic in 1987.
The main span unit consists of a single-cell precast concrete box girder with internal stiffening struts. The 95-ft-wide superstructure is supported across the main span by a single plane of stay cables along the bridge centerline. The superstructure was erected segmentally using a combination of "beam and winch" lifting and launching gantry. The maximum precast segment weight was 220 ton.
MSK personnel estimated, designed the casting operation, and managed precast production. |
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| San Mateo Bridge Widening |
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San Mateo Bridge Widening is a 5-mile-long precast trestle across San Francisco Bay. The project required 826 42" diameter cylinder piles, 278 precast pile caps, 2,169 bulb tee girders, and 19,000 pre-stressed deck slabs.
Precast was delivered to the site by barge at the rate of 3 spans per week.
Total value of the precast contract was $55 million.
MSK personnel estimated, engineered the casting operation, and produced the units. |
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| ATT Giants' Stadium |
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ATT Park (Pac Bell Park)
The new 45,000 seat stadium for the San Francisco Giants baseball team. Features 1425 prestressed double-riser seating units, precast stairs, prestressed single tees and miscellaneous wall panels.
Total value of the design-build precast contract was $8 million.
MSK personnel estimated, designed, and supervised production and installation of the precast. |
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| The Alameda Corridor |
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| The Alameda Corridor ten-mile long rail trench through the heart of Los Angeles featuring approximately 1500 39" diameter octagonal pre-stressed concrete struts, 400 Double Tee bridge girders, and other miscellaneous pre-stressed bridge members.
Total value of the design-build precast contract was $22 million.
MSK personnel estimated, designed, and supervised production of the precast. |
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| Wasco Prison, California |
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| Over the years MSK personnel have been involved in numerous projects across the country utilizing precast building components - columns, beams, floor systems, modules, and wall panels - both architectural and structural.
Many of these projects were design-build that included the design of the components, their manufacture, and installation. Examples of these projects include parking structures, justice facilities, hotels and dormitories. |
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