San Francisco, California: First Concrete Bridge

The Alvord Lake Bridge was built in 1889. It's a small bridge, over a park pedestrian path. Its underside is festooned with stalactites.

Address:
Kezar Drive, San Francisco, CA
Directions:
On Kezar Drive just south of its split from John F. Kennedy Drive, in Golden Gate Park. The road passes over the underpass, which accommodates a pedestrian path.
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First Concrete: Alvord Lake Bridge

The cave-like stalactites under the bridge are not caused by water seepage. They were original at the time of the bridge construction and were once much more elaborate. The interior of the underpass was intentionally sculpted and shaped to create an artificial cave as a form of decoration to give the walking path a more naturalistic appearance.

[Eddie, 11/04/2021]

Concrete bridge tunnel.

First Concrete: Alvord Lake Bridge

The Alvord Lake Bridge was the first reinforced concrete bridge in America, built in 1889.

[Mike, 07/06/2021]

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In the region:
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