SOUTHBOUND FROM TO 
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Exit #
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488A
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Santa Rosa Avenue
Colby Avenue
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487
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Hearn Avenue
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485
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Todd Road
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484
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Golf Course Drive
Wilfred Avenue
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483
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Rohnert Park Expressway
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481
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West
Gravenstein Highway
Cotati
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476
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Petaluma Blvd
Petaluma
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474
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Washington Street
Central Petaluma
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472B
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East
Sonoma
Napa
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472A
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Petaluma Blvd South
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END FREEWAY
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San Antonio Road
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Leaving Sonoma County / Entering Marin County
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BEGIN FREEWAY
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463
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Atherton Avenue
San Marin Drive
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462B
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De Long Avenue
Downtown Novato
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462A
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Rowland Blvd
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