U.S. Highway 101 - California Travel Information
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Business U.S. Highway 101

As the longest route in California, U.S. 101 has several business routes that mostly follow old alignments or routings through various cities.

Index to U.S. 101:

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List of Business U.S. 101 Alignments

  • Chula Vista - National City - San Diego (decommissioned around 1964 with conversion to Business Loop I-5): Beyer Boulevard, Broadway, National City Boulevard/Mile of Cars, Eighth Street, Harbor Drive, Pacific Highway
  • Oceanside (decommissioned around 1964 with conversion to Business Loop I-5): Coast Highway (now signed Historic U.S. 101)
  • Los Angeles (decommissioned around 1967; appeared on maps through 1980s): followed Ventura Boulevard from Exit 12A to Exit 27C
  • Ventura: follows Main Street from Exit 66B to 71
  • Santa Maria: follows Santa Maria Way west and California 135 north to U.S. 101, from Exit 167 to Exit 173
  • Arroyo Grande: follows Traffic Way and California 227/West Branch Street from Exit 186 to Exit 187A-B
  • Pismo Beach/Grover Beach: follows Price Street from Exit 190 to 191B
  • San Luis Obispo: follows Marsh Street/Higuera Street one-way couplet into downtown, then follows Monterey Street back to U.S. 101 between Exit 202A and Exit 204 (not signed at all from either direction of mainline U.S. 101)
  • Atascadero: follows Traffic Way, Potrero Road, Del Rio Road from Exit 220A to Exit 222
  • Templeton: follows Vineyard Drive, Old County Road, and Main Street from Exit 224 to Exit 226
  • Paso Robles: follows Spring Street from Exit 229 to Exit 232
  • King City: follows South First Street and Broadway (Monterey County Route G-13 and G-15) from Exit 281 to Exit 282A-B
  • Greenfield: follows El Camino Real from Exit 293 to Exit 295
  • Soledad: follows California 146/Front Street from Exit 302 to Exit 303
  • Gonzales: follows Alta Street from Exit 310 to Exit 312
  • Salinas: follows Abbott Street north from area near Gould Street/Hartnell Street intersection (near Milepost 322) to California 68/John Street; follows John Street west to Monterey Street/Salinas Street one-way couplet through downtown; continues north onto Main Street (known as California 183 between downtown and U.S. 101); and returns to U.S. 101 at Boronda Road (Exit 331)
  • Gilroy and Morgan Hill: follows Monterey Street and Cochrane Road from Exit 355 to Exit 367
  • Novato: follows Rowland Boulevard west to Redwood Boulevard to Atherton Avenue from Exit 462B to Exit 463
  • Petaluma: follows Petaluma Boulevard from Exit 472A to Exit 476
  • Santa Rosa: follows Santa Rosa Avenue and Mendocino Avenue from Exit 484B (or 488A) to Exit 492; southbound travelers must Hopper Avenue east to Cleveland Avenue south to Fountaingrove Parkway east to connect with Mendocino Avenue
  • Cloverdale: follows Cloverdale Boulevard (including segment of California 128 at north end) from Exit 519 to Exit 522
  • Ukiah (decommissioned/unsigned): followed State Street from Exit 546 to Exit 551
  • Garberville/Redway: follows Redwood Drive from Exit 639A to Exit 642
  • Rio Dell/Scotia: follows unsigned California 283 (Main Street) and Wildwood Avenue from Exit 679 to Exit 681
  • Fortuna: follows South Fortuna Boulevard and Main Street from Exit 687 to Exit 689
  • McKinleyville: follows Central Avenue from Exit 718 (Junction California 200) to Exit 723

Page Updated February 10, 2007.