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.

Kezar Drive, San Francisco, CA
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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Visitor Tips and News About First Concrete Bridge

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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]

The seepage of over a century of water through its limestone mortar has festooned the bridge underpass with cave-like stalactites.

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