ADA Guide Lines for Building Curbs
This includes the most recent title II ADA regulations implemented in 2016, which puts the responsibility of accessibility in the hands of state and local governments. The ADA’s guidelines define a curb ramp and its components and identify acceptable design specifications for warning surfaces and ADA flooring, such as:
- Slope: The slope of a curb ramp (built after January 26, 1992) must be 8.33% or less.
- Width: A ramp must be a minimum of 36 inches wide.
- Detectable warnings: Dome-shaped bumps must extend the ramp’s full width and depth.
- Transitions: Must be level with the street, walkway, or gutter.
- Location: Curb ramps must be anywhere a sidewalk or pedestrian path meets a curb.
U.S. Department of Transportation Memorandum
This provides an overview of the use of detectable warnings, per the ADA’s minimum design standards, with access to additional insights on truncated domes, their unique design, and effectiveness. The memorandum defines the U.S. Department of Transportation’s role in enforcing ADA Title II standards and regulations.
US Access Board
A federal agency promoting equality for those with disabilities, the U.S. Access Board assumes a leadership role in the development of accessibility guidelines. The Board has developed guidelines for street crossings, sidewalks, and shared use paths to improve accessibility and transportation and recreational safety in off-road areas. Guidelines cover slope, terrain, roadway design, and other factors.
Public Right of Way
This addresses proposed and current guidelines regarding ADA accessibility at public rights-of-way. The Access Board develops guidelines on street crossing access for visually impaired pedestrians, wheelchair access to street parking, and pedestrian access to curb ramps, crosswalks, and other public rights-of-way associated with an ADA compliant sidewalk.
California Building Standards Commission
This administers the state’s building codes development, adoption, implementation, and other processes. The California Building Standards Code, Title 24 covers the design, safety, construction, and sustainability of buildings in the state.
DSA California Compliance
This provides access to reference materials covering accessibility guidelines, which apply to government buildings, public housing, commercial facilities, and privately owned public accommodations. Links to the Summary of 2016 California Building Code Changes for Accessibility and other resources are available.
Caltrans Standard Plans A88A
This has schematic details that represent the dimensional and physical requirements of a tactile surface on a curb ramp.
Caltrans Standard Plans A88B
This has schematic diagrams covering curb ramps and different types of island passageways.
APWA Report: Are Your Curb Ramps Really Compliant?
This is an article by the American Public Works Association, published in August 2008, that provides insights into ADA accessibility guidelines, including those covering building retrofits and using curb ramps with tactile tiles and other detectable warning panels. The report also emphasizes compliance as a goal for engineers, inspectors, contractors, and others.
Learn more about ADA Solutions’ tactile warning surfaces covered by ADA regs, and under Caltrans standard plans, by calling us toll-free at 800-372-0519, or request a free quote today.