US 99 – Union Avenue / SR-99 : Business SR-99

Historical Tour of old US 99
Great Central Valley – San Joaquin Valley

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Union Avenue / SR-99 : Business SR-99

After leaving current State 99, the first Business 99 shield appears.
After leaving current State 99, the first Business 99 shield appears.
Looking north just north of SR-99 Freeway. Note the white railing.
Looking north just north of SR-99 Freeway. Note the white railing.
Detail of the culvert on the northbound (original) side.
Detail of the culvert on the northbound (original) side.
Canal crossing. Dated 1931.
Canal crossing. Dated 1931.
Southbound, the bridge is from 1938.
Southbound at the same canal, the bridge is from 1938.
Looking back toward Grapevine Canyon from Union Ave.
Looking back toward Grapevine Canyon from Union Ave.

This section of US 99 was first constructed in 1915 as a narrow, concrete, two lane road. It was widened to a four-lane highway in 1939. It was later modified and slightly modernized in 1949. Finally in 1962, Union Avenue was entirely bypassed to the west by the present freeway. Union Avenue was then redesignated Business SR-99.

Go North on US 99 to Bakersfield

Go South on US 99 to Los Angeles

Return to the US 99 Introduction page

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