There are two business routes for State Route 20 in Northern California. Located in Colusa County, the western section of SR 20 Business follows E Street and Husted Road in a loop south from SR 20 to the city center of Williams. A sparsely signed business route for SR 20 overlaps with SR 49 Business through Grass Valley and Nevada City. The remaining shields for SR 20 Business appear in Nevada City.

California 20 Business east - Williams
Eastbound California 20 Business (E Street) meets Business Loop I-5 (7th Street) in Downtown Williams. 03/31/05
The Williams Arch is prominently featured along E Street (SR 20 Business) at 6th Street. Williams, a small farming community, is best known by Interstate 5 travelers for the typical fast food and gas franchises near the freeway. 03/31/05
A diamond interchange joins SR 20 Business (E Street) with Interstate 5 east of 5th Street in Williams. The first ramp connects to the freeway south to Woodland and Sacramento. 03/31/05
An SR 20 Business trailblazer references the continuation of the route across I-5. The succeeding ramp connects with Interstate 5 north to Willows, Orland, Red Bluff, Redding and Portland, Oregon. 03/31/05
California 20 Business west - Williams
Leaving the exchange with I-5, SR 20 Business (E Street) intersects 5th Street ahead of the California Northern Railroad line and Downtown Williams. 03/31/05
The Williams Arch spans SR 20 Business, which follows the original SR 20 alignment along E Street, at 6th Street in Downtown Williams. 03/31/05
Westbound California 20 Business advances one block from the Williams Arch to Business Loop I-5 and Old U.S. 99W along 7th Street. 03/31/05
California 20/49 Business east - Nevada City
The first of two shield assemblies for SR 20 Business and SR 49 Business appears at the turn onto Broad Street from Sacramento Street in Nevada City. 08/11/18
Coyote Street leads SR 20/49 Business north from Broad Street and the Nevada City business district to Washington Street. 08/11/18
SR 20/49 Business return to SR 20 east & 49 north via the nearby Washington Street on-ramp. 08/11/18
California 20/49 Business west - Nevada City
2 photos
2 photos
SR 20/49 Business west separate from the SR 20/49 freeway at Exit 186 for parallel Coyote Street. The routes are unmarked leading south from Washington Street to Downtown Nevada City. 08/11/18
A half diamond interchange connects the SR 20/49 freeway with SR 20/49 Business along Broad Street in Nevada City. 08/11/18
2 photos
2 photos
Following Sacramento Street south from Broad Street, unsigned SR 20/49 Business span the SR 20/49 freeway at a second half diamond interchange in Nevada City. 08/11/18
California 20 Business scenes
4 photos
4 photos
4 photos
4 photos
A roundabout joins the west end of Idaho Maryland Road with East Main Street and the north side ramps of the Golden Center Freeway (SR 20/49) in the city of Grass Valley. 07/11/18

Photo Credits:

03/31/05, 07/11/18, 08/11/18 by AARoads

Connect with:
Interstate 5
Business Loop I-5 - Williams / Maxwell
State Route 20
State Route 49 - Mother Lode Highway

Page Updated 03-19-2019.

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