Lafayette Historical Society

Lafayette, California

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You are here: Home / Mt. Diablo Boulevard

Mt. Diablo Boulevard

Lafayette was at the crossroads of four towns: Oakland, Martinez, Walnut Creek, and Canyon/Moraga. Lafayette residents traveled to Oakland for its many stores and amenities, for medical care, and to sell hay, fruits, and vegetables. The first roads to Oakland went over the top of the hills, a 1,000 foot climb. The Kennedy Tunnel was opened in 1903, 320 feet below the top of Summit Road.

Roads in the early days were dusty in summer and full of ruts, sometimes impassable, in winter. All year long there were pot holes. The county paved Tunnel Road from the tunnel to Walnut Creek in 1916. Slowly other roads were rocked and paved.

In 1937, a new tunnel, the Broadway Low Level Tunnel, opened 310 feet below the Kennedy Tunnel. A third bore opened in 1964, a fourth bore in 2013. Today all four bores are collectively called the Caldecott Tunnel.

Mt Diablo Blvd 1926

By 1926, the road through town was still a dirt road but there were now automobiles in the area driving on Mt. Diablo Boulevard (previously named Tunnel Road as it was the road to/from the Kennedy Tunnel connecting Contra Costa and Alameda counties).

Cattle on Mt Diablo Blvd 1921

In the 1920s, cattle were still driven through town by local farmers down the main road, through the old tunnel to Berkeley and on to the slaughter house in Emeryville.

Mt Diablo Blvd 1930's

The corner of Mt. Diablo Boulevard and Moraga Road looking west as seen in 1937. The main streets were now paved and the roads marked with lane lines and but there were no stop lights or stop signs!

Mt Diablo Blvd, Roundup, Boysen Paints

Looking east on Mt. Diablo Boulevard in the 1930s near Johnny’s Roundup Saloon. There were now many more cars in the town (perhaps patrons at Johnny’s?)

Mt Diablo Blvd

Heading east on Mt. Diablo Boulevard in the 1960s near today’s Postino Restaurant. Safeway can be seen on the left. The street is now four lanes with a median strip in the center (also notice the ugly light fixtures above the street).

Dewing and Mt Diablo 1970

Near the corner of Mt. Diablo Boulevard and Dewing Avenue in the 1970s (before the City of Lafayette passed a sign ordinance), the downtown streets were blanketed with a blight of business signs.

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History Room
open Tuesday, Thursday and Saturday
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Lafayette Library
& Learning Center,
enter on Golden Gate Way
925-385-2297


Mailing Address: PO Box 133 Lafayette, CA 94549

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Memories of living and working in Lafayette are precious. Let us help you share those memories with others who value the town’s history. Call the Lafayette Historical Society’s Oral History line to set up a brief oral history phone interview with one of our friendly volunteers. Together, we can preserve the vibrant narrative of our town for generations to come.


Call 925-297-5397

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