A Complete Guide To ADA Ramp Slope Requirement

More than three decades after the law’s passage, the Americans with Disabilities Act (ADA) requirements are still being updated, with mandates in place to make public areas accessible to wheelchairs, walkers, and motorized scooters via ramps. 

This means that if your facility serves the public, it must have an ADA-compliant ramp by 2021 and adhere to the type of ramp required. Some factors to consider include location, size, and slope. The same requirements exist, with only a few proposed language changes so far; these include parallel execution of constructs such as loops, blocks, and container iteration, as well as parallel reduction.

The Value of an ADA Curb Ramp

Curb edges and other hazards can be extremely dangerous for people with disabilities. The ADA ramp slope requirements were put in place to help prevent situations like people falling out of wheelchairs or scooters or tripping while using a cane or walker. Accessibility is also a consideration, as federal laws consider restricting access in public places to be discrimination. 

We will answer some frequently asked questions from business owners, building managers, and construction companies to help you better understand the latest ADA ramp specifications and requirements.

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Where does the ADA require curb ramps and ramps?

The ADA requires curb ramps and ramps to be installed along any accessible route in a public area, along a path where there’s a change in height greater than ½ inch. Elevators or platform/chair lifts can also be used to provide accessibility in a facility. 1 Furthermore, accessibility routes with a slope of 5% or more must be equipped with ADA-compliant ramps.

The following ADA curb ramp design standards are covered in Section 405 of the ADA curb ramp requirements:

  • Clear Width: Between the ramp’s handrails, a ramp run must be at least 36 inches wide.
  • Rise: 30 inches maximum per run, with no limit on the number of runs.
  • Running Slope: Maximum slope of 1:12, or one foot of elevation change every 12 feet.
  • The ADA allows a maximum cross-slope ratio of 1:48.
  • Alterations: Are permitted on limited-space running slopes such as:
  • Maximum rise of 6 inches and a maximum rise of 1:10
  • 1:8 maximum with a maximum rise of 3 inches
  • A slope of no more than 1:12.

What Are the Most Recent ADA Landing Requirements?

A landing must be at least 60 inches long and 36 inches wide and installed at the top and bottom of a ramp (between separate sections).

1 Its level must not be higher than a 1:48 ratio. There must be at least 60 inches of clear width and a minimum length of 60 inches for intermediate landings between runs. The path cannot be obstructed by handrails, vertical posts, edge protectors, or other elements.

At the top and bottom of a run, handrail extensions are also required. They must be a minimum of 12 inches long. The extension must travel in the same direction as the ramp, but it may turn or wrap with a handrail as long as it is continuous or follows the inside turn of a dogleg or switchback-type ramp. Water must not pool in the design of curb ramps and ramps, landings, and the bottom of curb transitions.

At ramp landings, doorways can be installed. Ramps can overlap with door openings in such cases, but the door cannot open into the landing area. It can be difficult to avoid overlap at times. If this cannot be avoided, the ADA recommends that the door be set to swing.

Where can built-up curb ramps be used?

Built-up curb ramps are permitted under the ADA. These are added off a curb to provide access and can be built up to or cut through the curb in the street. They are also useful in parking lots. Built-up ramps, on the other hand, cannot project into parking spaces, traffic lanes, or access aisles.

Built-up curb ramps can have side flares with a maximum slope of 1:10 on either side. When a built-up curb ramp is not possible, alternative designs can be used. An alternate ramp must run parallel to the sidewalk and have landings that are at least 48 inches wide at the base.

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