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San Bernardino County

Dam tunnel access

Discover
Places to see

United States

California

San Bernardino County

Dam tunnel access

Dam tunnel access

Recommended by 1 cyclists

This Highlight is in a protected area

Please check local regulations for: San Bernardino National Forest

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    Location: San Bernardino County, California, United States

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    June 12, 2025

    The paved tunnel under the dike can be biked or explored on foot at least to the other side where the water might be too high to exit. There are some inteesting gaffiti paintings along the walls.

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      Elevation 890 m

      Weather

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      Sunday 21 September

      27°C

      17°C

      27 %

      If you start your activity now...

      Max wind speed: 2.0 km/h

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      Location: San Bernardino County, California, United States

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