Civil · C-G6YAX

Truncated Dome Spacing

Materials

Elements

Stairs Ramps Vaults / Domes Site / Paving

About this detail

Detectable warnings consist of pre-manufactured units integrally cast into the concrete ramp with a depth of 24 inches in the direction of travel spanning the full width of the curb ramp, landing, or blend transition. Individual domes measure 3/16 inches high with a base diameter between 7/8 inches minimum and 1-7/16 inches maximum. Center-to-center dome spacing ranges from 1-5/8 inches minimum to 2-3/8 inches maximum. Domes have a diameter of 50% to 65% of the base diameter and surfaces must contrast visually with adjacent walking surfaces, requiring owner approval prior to installation.

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