How deep is the water under the San Francisco Bay Bridge?

In many places, it's not much deeper than a swimming pool. In between Hayward and San Mateo, it's a mere 12 inches. Under the Golden Gate Bridge, however, the depth reaches just over 370 feet.

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How much of BART is underground?

BART's rapid transit revenue routes cover about 120 miles (190 km) with 50 stations. On the main lines, approximately 28 miles (45 km) of lines run through underground sections with 32 miles (51 km) on elevated tracks.

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Is BART earthquake proof?

Earthquake Safety ProgramThe Transbay Tube is BART's most critical asset. Although the tube is structurally sound, in a very large and very rare earthquake, the outer shell and concrete liner are predicted to crack.

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Why is BART underground in Berkeley?

The City of Berkeley did not want the trains running above the street due to noise and visual impacts (as anyone who's tried to sleep near an above-ground BART line can attest).

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Are there great white sharks around Alcatraz?

Each year, this small population of around 300 adults returns in the fall to our National Marine Sanctuary during Sharktober. Several events of tagged white sharks have been documented passing through the Golden Gate swimming along the waterfront and circling past Alcatraz before leaving again.

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What lurks under the Golden Gate Bridge?

Underneath the Golden Gate Bridge lies the wreck of the City of Chester, a steamboat that sank on August 22, 1890 at 10 a.m. The boat was impaled on the steamer Oceanic, arriving from Asia, and sunk in six minutes.

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Does BART go underwater or underground?

The train runs through a steel-and-concrete tunnel that is resting on the bottom of San Francisco Bay. You can read about it by Googling Transbay Tunnel. It's a fascinating piece of Engineering, putting a flexible, underwater tunnel in Earthquake Country.

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What is the top speed of a BART train?

BART has 8 DMU train cars which each have a seating capacity of 104. 70 mph maximum; 35 mph average, including 20-second station stops. For BART to Antioch DMU trains, the maximum speed is 75 mph; 60 mph average.

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How fast does the BART go?

The size of BART's fleet will be dynamic while new trains are put into service and old trains are retired. BART has 8 DMU train cars which each have a seating capacity of 104. 70 mph maximum; 35 mph average, including 20-second station stops. For BART to Antioch DMU trains, the maximum speed is 75 mph; 60 mph average.

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How deep underwater is the BART tunnel?

How did they build the BART tunnel underwater?

Built using the immersed tube technique, the Transbay tube was constructed on land in 57 sections, transported to the site, and then submerged and fastened to the bottom – primarily by packing its sides with sand and gravel. Opened in 1974, the tunnel was the final segment of the original BART system to open.

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Why can’t you eat on BART?

NO EATING/DRINKING KEEPS BART CLEANERBut let's face it, BART cars jostle and passengers bump into each other. It would simply be impossible for us to meet our goal of a cleaner BART if we had to keep up with all the spilled coffee and food were we to allow passengers to eat or drink on trains and platforms."

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Is it safe to swim around Alcatraz?

Swimming from Alcatraz is one of the most famous, desirable, and enjoyable open water swims (wild swim) in the entire world. Despite lore that swimming from Alcatraz is dangerous, for experienced swimmers with proper support, swimming from Alcatraz can be safe and fun.

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Has anyone escaped Alcatraz?

Frank Morris, John Anglin and Clarence Anglin successfully carried out one of the most intricate escapes ever devised, on June 11, 1962. Behind the prisoners' cells in Cell Block B (where the escapees were interned) was an unguarded 3-foot (0.91 m) wide utility corridor.

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How deep is the water under the Golden Gate?

377 ft

Golden Gate
Max. width 3 miles (4.8 km)
Min. width 1.1 miles (1.8 km)
Max. depth 115 meters (377 ft)
Settlements San Francisco, CA
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Do they ever clean the BART?

Seats are scrubbed with hot water and disinfectant soap during a thorough clean. BART recently increased the frequency of thorough cleans from every 900 hours of train car service to every 450 hours, meaning we've doubled the number of times the cars in our system undergo a deep clean.

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How is BART so fast?

BART can offer faster service on its lines partly because of the greater availability and reliability of its modern line of Seahawk-colored trains, which began operating five and half years ago. According to BART, the new trains can stay online for twice as long before servicing.

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Is BART or driving faster?

Taking BART, he noted, is also faster than driving the highly trafficked highways into San Francisco. “Being on BART makes me feel relieved. It's way more stressful driving,” he said. “It's tough commuting this far, but public transit makes it more manageable.”

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Why doesn’t BART run 24 7?

A: The short window of time when BART isn't in operation is used for essential nightly track maintenance to help keep BART safe and reliable. There are only a few hours for maintenance crews to get their work done each night between when the last trains of the day leave and when the first trains of the day start up.

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