Bayshore (James
Lick)
Freeway

Hospital Curve, US 101 near Vermont Street exit.
Length: Around 4 miles (San Francisco), 55.2 (entire routing)
Routing in SF: San Francisco County Line to Central Freeway/San Francisco
Skyway (I-80, formerly US 40/50) interchange
Construction: 1950-1953 (San Francisco portion)
Route Numbering: Bypass US 101 to Southern Freeway interchange (1953-1964),
US 101 north of interchange (1953-), US 101 south of interchange
(1964-)
Bayshore Boulevard was originally constructed as part of the Bayshore
Highway, which had been US 101, US 101A and BYPASS US 101 on and off from
the 1930s until the Great Renumbering of 1964. Throughout the 1950s,
gradual construction of a freeway on the Bayshore Highway route between San
Jose and San Francisco had been taking place; by the early 1950s, Bypass
101 was being built in San Francisco itself.
On October 1, 1953, the section from the Bayshore/Alemany circle to the current massive Army Street interchange was finished. By 1956, the entire route was completed; this would be one of only two freeways in San Francisco to ever be finished without truncation. It directly links to the San Francisco Skyway (I-80) as one continuous highway - to continue on US 101 north, you still remain on the left, but the route "exits" from itself, because I-80 and US 101 were to have multiplexed west on the Central to Fell/Oak. This arrangement is seen here:
Sources: Cahighways.org, Terraserver for pictures, Chris Carlsson's Freeway Revolt page (http://www.bikesummer.org/zine/freewayRevolt.htm).
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