Scenic Route 84 84
Scenic Route 84 is a State Scenic Byway in California. Within California it covers roughly 7 miles. The map below shows its route. Use “Plan a drive” to open it in the Road Sorties route planner — already routing along Scenic Route 84 with scenic roads turned on, ready to add your own stops.
State Route 84 is a California Scenic Highway through Niles Canyon in Alameda County, connecting Mission Boulevard to Interstate 680 near Sunol. Further west, the same highway crosses San Francisco Bay on the Dumbarton Bridge, but that engineered crossing carries no scenic designation; the honor belongs instead to the narrow, twisting 7.1-mile stretch of Niles Canyon Road that squeezes through the tight Sunol Valley gap between Mission Boulevard and I-680. Local advocates spent roughly 12 years pushing for that designation before Niles Canyon was finally added to the California Scenic Highway System, recognition for a canyon so narrow in places that the two-lane road, the creek, and the historic railroad line all share the same tight corridor. The canyon's history runs deep: it was an early transcontinental railroad route and later one of the first paved roads in the East Bay, and much of that layered infrastructure history is still visible from the car window today. Compared to the newer, faster Dumbarton Bridge crossing on the same route number, this is Route 84's slower, older, and now officially scenic half.
- Niles Canyon (Alameda County)
- 7.1 miles: Mission Blvd to I-680
- scenic designation after 12-year effort
- Sunol Valley
- shared canyon: road, creek, railroad
- Dumbarton Bridge (non-scenic segment)
Plan a drive on Scenic Route 84 →
What is a State Scenic Byway?
State Scenic Byways are roads a state has formally recognized for their scenic, natural, historic or cultural value — each state's own curated collection of drives worth taking slowly.
Where to Stay along Scenic Route 84
No campgrounds are listed close to Scenic Route 84 yet, but there are rooms near the route.
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