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The Cypress Street Viaduct, often referred to as the Cypress Structure or the Cypress Freeway, was a 1.6-mile-long (2.5 km), raised two-deck, multi-lane (four lanes per tier) freeway constructed of reinforced concrete that was originally part of the Nimitz Freeway (State Route 17, and later, Interstate 880) in Oakland, California, United States ...
The 1989 Loma Prieta earthquake occurred on California's Central Coast on October 17 at 5:04 p.m. local time. The shock was centered in The Forest of Nisene Marks State Park in Santa Cruz County, approximately 10 mi (16 km) northeast of Santa Cruz on a section of the San Andreas Fault System and was named for the nearby Loma Prieta Peak in the ...
Damage from the 1989 Loma Prieta earthquake. The top deck (Cypress Street Viaduct) of the Nimitz Freeway collapsed down onto the lower deck.
A massive earthquake that struck the Bay Area on October 17, 1989 forever changed the region, and potentially altered the course of baseball history. The 6.9-magnitude Loma Prieta quake struck at ...
Interstate 880 (I-880) is a north–south auxiliary Interstate Highway in 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 ...
Caltrans. The MacArthur Maze[1][2][3] (or more simply the Maze; formally, the East Bay Distribution Structure[4]) is a large freeway interchange in Oakland, California. It splits traffic coming off the east end of the San Francisco–Oakland Bay Bridge into three freeways: the Eastshore (I-80/I-580), MacArthur (I-580) and Nimitz (I-880).
The original eastern section was composed of a double balanced cantilever span, five through-truss spans, and a truss causeway. This part became the subject of concern after a section collapsed during the Loma Prieta earthquake on October 17, 1989. The replacement span is engineered to withstand the largest earthquake expected over a 1500-year ...
On October 17, 1989, a 6.9 magnitude earthquake struck the Bay Area at 5:04 p.m. The rupture was related to the San Andreas fault system and effected all Bay Area counties with a maximum Mercalli intensity of IX (Violent). Many structures in Oakland were badly damaged including the double-decker Cypress Street Viaduct in West Oakland that