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Sweeney Ridge

Mountain bike trail conditions · Bay Area, CA

PRIME

Rideable now

Trails are dry, excuses aren't.

  • Recent rainNo measurable rain in the past week

Sweeney Ridge (Bay Area, CA) pairs fast-draining soil with rolling, partial shade terrain. Loam reads that profile against live weather to call conditions here instead of guessing from a regional forecast.

Environmental profile

Sweeney Ridge’s drying behavior comes down to what Loam measures for this exact location:

Fast-drainingSandy / coarse soil

Sandy and coarse-grained soils shed water quickly — excess moisture drains down through the soil profile rather than pooling on the surface. Trails on fast-draining soil can recover within hours of light rain, making them some of the most resilient riding around.

Partial shade45% canopy

A mix of shaded and open sections. Sun-exposed stretches dry quickly while tree-covered sections hold moisture longer, so conditions can vary noticeably across the network — rideable in one zone, still damp in another.

Rolling13° avg

Rolling terrain drains reasonably well and tends to be forgiving in variable conditions — enough gradient to shed water without the consequences of steeper ground.

Slopes here are predominantly northeast-facing, with about 35% rock fragment content in the soil — a factor in how fast the surface sheds water and dries.

Free iPhone app · iOS only

Get live Sweeney Ridge conditions on your phone

Loam is a free app for iPhone. Open it for a one-tap rideability verdict and get a push notification the moment Sweeney Ridge turns rideable. Watch up to 3 networks free — no account needed.

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Nearby networks in Bay Area, CA

FAQ

Can you ride Sweeney Ridge right now?

As of the latest update, Sweeney Ridge is Rideable now (PRIME). Trails are dry, excuses aren't. No measurable rain in the past week.

What is the soil and trail surface like at Sweeney Ridge?

Sweeney Ridge sits on fast-draining ground (Sandy / coarse soil). Sandy and coarse-grained soils shed water quickly — excess moisture drains down through the soil profile rather than pooling on the surface. Trails on fast-draining soil can recover within hours of light rain, making them some of the most resilient riding around.

How long does Sweeney Ridge take to dry after rain?

On its fast-draining soil, Sweeney Ridge typically takes only a few hours to recover after light rain, and its rolling terrain helps shed water.

Does Sweeney Ridge get snow in winter?

Yes — Sweeney Ridge is in a maritime snow climate, so winter riding can be limited by snowpack or freeze-thaw. Loam flags a FROZEN state when the ground is snow-covered or frozen.