ADA Ramps

Accessible Curb Ramps Built to Federal and New York Code

Led by a founder who serves on the Pavement Education Advisory Board at the National Pavement Expo, Royal Pavement Solutions builds ADA curb ramps and wheelchair ramps the way the code is written. We design and pour concrete ramps that connect accessible parking to your sidewalks and entrances across Long Island, NY.

An ADA ramp is the sloped concrete path that lets wheelchair users, walkers, and anyone with a cart move between the parking surface and a raised sidewalk. Get the slope, width, or landing wrong by even a little, and the ramp can fail inspection or become a liability. We build to the numbers so you don’t have to rebuild later.

What ADA Ramps Are and the Rules They Follow

Most parking lot ramps are curb ramps cut into or built up to the sidewalk edge. Longer ramps along a walkway to a building entrance follow a separate, stricter set of rules. On Long Island, both must meet the 2010 ADA Standards and the 2025 Building Code of New York State, which took effect December 31, 2025, and uses the ICC A117.1-2017 accessibility standard.

Curb Ramp Technical Specs

• Running slope – 1:12 (8.33%) maximum. A 6-inch curb needs a ramp run of at least 6 feet.
• Cross slope – 1:48 (about 2%) maximum side to side
• Clear width – 36 inches minimum, not counting side flares
• Side flares – 1:10 maximum where people may walk across the ramp; 1:12 in alterations where there’s no room for a full top landing
• Top landing – At least 36 inches long and as wide as the ramp, so users can turn without rolling onto the flares
• Counter slope – The gutter or pavement at the bottom can’t slope more than 1:20 toward the ramp
• Flush transition – No lip where the ramp meets the asphalt; even a small edge can stop a wheelchair caster
• Placement – Ramps can’t project into parking spaces, access aisles, or drive lanes
• Drainage – Ramps and landings must be shaped so water doesn’t pond, which also helps prevent winter ice
• Surface – Firm, stable, and slip-resistant

Wheelchair Ramp Specs (Walkway and Entrance Ramps)

• Slope – 1:12 maximum running slope, 1:48 maximum cross slope
• Rise per run – 30 inches maximum before a level landing is required
• Landings – At least 60 inches long at the top and bottom of each run; 60 by 60 inches where the ramp turns
• Handrails – Required on both sides when the rise is more than 6 inches, mounted 34 to 38 inches high
• Edge protection – A curb, rail, or extended surface keeps wheels and crutch tips from slipping off the side

Detectable Warnings (Truncated Domes)

Under the 2010 ADA Standards, private commercial lots generally don’t need truncated-dome pads on curb ramps. They are required at public transit facilities and on federally funded highway projects. Town, county, and NYSDOT standard details for public sidewalks often call for them, too.

Where detectable warnings are used, they run the full width of the ramp, extend 24 inches deep, and contrast visually with the surrounding concrete.

New York Accessible Parking Rules That Affect Your Ramps

• The 8-foot rule – New York Vehicle and Traffic Law §1203-c requires accessible spaces and their access aisles to each be at least 8 feet wide whenever you build a new lot or repave or restripe more than half of the spaces
• Aisle signs – Access aisles must carry permanent “No Parking Anytime” signs mounted 5 to 7 feet above the aisle surface
• Van spaces – At least one of every six accessible spaces must be van-accessible
• Level parking – Accessible spaces and aisles can’t slope more than 1:48 in any direction
• A continuous route – The ramp must connect the access aisle to the building entrance without steps, gaps, or obstructions

Permits on Long Island

• Private parking lots – Ramps tied to a site plan, building permit, or lot alteration are reviewed by your local building department
• Public sidewalks – Ramps in a town or village right-of-way need that municipality’s road opening or right-of-way permit and must match its standard detail
• County and state roads – Work along county roads goes through the Nassau or Suffolk County DPW; state roads need an NYSDOT Highway Work Permit
• Utility markouts – A New York 811 request is required at least two full working days before excavation

Types of ADA Ramps We Build

• Perpendicular curb ramps – The most common layout, cut straight through the curb with a top landing behind it
• Parallel curb ramps – Ideal for narrow sidewalks with no room for a top landing
• Built-up curb ramps – Poured up to the curb where they won’t intrude on parking spaces or aisles
• Walkway and entrance ramps – Longer concrete ramps with landings along the route to your door
• Non-compliant ramp replacement – Demolish and rebuild ramps that are too steep, too narrow, or missing landings

Our ADA Ramp Process

• Measure the existing conditions – We check curb heights, slopes, and the full route from the access aisle to the entrance
• Confirm permits and markouts – We identify which agency has jurisdiction and request a New York 811 markout
• Remove and prepare – Old concrete and asphalt come out, and we build a compacted base
• Form to exact slope – Forms are set and checked against the 1:12 and 1:48 limits before any concrete arrives
• Pour and finish – Concrete is placed, finished slip-resistant, and tied flush into the surrounding pavement
• Cure and verify – After curing, we check slopes again and coordinate restriping of spaces and aisles

Benefits for Long Island Property Owners

• Reduced legal exposure – Compliant ramps help protect you from accessibility complaints and lawsuits
• Smoother inspections – Ramps built to code the first time avoid costly tear-outs
• Safer in winter – Proper drainage keeps water from pooling and freezing on ramps and landings
• Welcoming to every visitor – Customers and tenants with mobility needs can reach your door easily
• Paving and striping in one visit – We can handle the ramp, the asphalt, and the accessible space markings together

Why Choose Royal Pavement Solutions for ADA Work

• Best practices, taught and practiced – Founder Kenny Roy III helps educate other paving companies through the National Pavement Expo
• A lifetime in paving – Kenny grew up working in his family’s asphalt company and started Royal in 2019
• Late-model fleet – Our equipment is all 2023 or newer
• Responsive service – Every call reaches a real person, and missed calls are returned within one hour, guaranteed
• Satisfied clients – Royal maintains a 100% customer satisfaction rate

ADA Ramp FAQs

Does my private parking lot need truncated domes on its curb ramps?
Usually not under the 2010 ADA Standards, unless the site is a public transit facility. Ramps in public sidewalks often do need them under town, county, or state details. We’ll confirm what applies to your property.

How steep can a curb ramp be?
The maximum running slope is 1:12, or one inch of rise for every 12 inches of length. Limited exceptions apply to tight spaces in existing sites. Steeper ramps are one of the most common violations we fix.

If I repave my lot, do I have to update my accessible parking?
Often, yes. In New York, repaving or restriping more than half of the spaces triggers the 8-foot width rule for accessible spaces and aisles. That’s a good time to check that your ramps meet code, too.

When does a ramp need handrails?
Ramps with a rise of more than 6 inches need handrails on both sides. Standard curb ramps at a 6-inch curb typically don’t. Longer walkway ramps almost always do.

Can a curb ramp extend into the access aisle?
No. Built-up curb ramps can’t project into parking spaces, access aisles, or drive lanes. The aisle must stay flat and clear for loading.

Related Services

Complete your accessible route with these services:

• Sidewalks & Walkways – Level, code-ready walks that carry the route to your door
• Parking Lot Striping – Accessible space and aisle markings that meet New York rules
• Concrete Paving – Curbs, pads, and concrete work for busy commercial sites
• Parking Lot Paving – New and rebuilt lots designed with accessibility in mind

Get Your Ramps Checked

Not sure your ramps would pass? Call Royal Pavement Solutions at 631.481.8326 to ask about our free virtual assessment, or email info@royalpavementsolutions.com. We build ADA ramps for commercial properties throughout Nassau and Suffolk Counties, Monday through Friday, 8am–5pm.