Contact US

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Curb height standards

Curb height standards

Curb height standards

Is anyone aware of specific codes or standards for the maximum height of a concrete curb in a parking lot?  Specifically, a concrete curb that surrounds a landscaped island.  I know there are ADA requirements for handrails along sidewalks or platforms when they exceed a certain height (I believe 24" or 30"), but I haven't seen anything related to curbing in non-accessibility areas.  Has anyone?  

RE: Curb height standards

Michigan people usually follow the Dept. of Transportation
height of 7". I assume you mean straight curb.

RE: Curb height standards

I usually figure a maximum of 8", although 5 to 7 inches is more common.  If a car door can open over the curb, and the drainage is adaquately controlled I generally feel that it is ok.

RE: Curb height standards

Minnesota used to use 6" for curbs.

RE: Curb height standards

Has anyone in snow country ever tried to plow snow from a parking lot filled with concrete curbed planting islands?  I like "trees and plants and things", but in snow country island curbs are a real equipment breaker.

Back to your question.  The curb height I see most often is 6".  However, many municipalities have zoning requirements or standard city details that specify curb design.  Check out your local department of public works.

RE: Curb height standards

Don't know of a maximum height.  Curb height is related to two things:

1. Must safely stop/prevent a car from passing - prevents cars from leaving the roadway or crossing to the other side.  This is a safety issue.  Higher speeds or larger trucks require higher curbs.  In parking lots, it mainly prevents bumper to bumper contacts.

2. Allows water to flow at depth in the gutter.  This is a drainage channel and depth also controls the amount of water able to enter the catch basins.  Taller curbs will allow more water to flow in the street.

Typically, pedestrian safety becomes a concern with drops of 30 inches or more.  However, for ADA you must have a ramp available.

RE: Curb height standards

Those planters, etc are the place to put the snow.

RE: Curb height standards

Curb height also is determined by other factors. Such as need for curb side drainage enclosure after repaving. In some specific cases, I eliminate the use of wheel stops (a tripping hazard) on parking adjacent to wide islands, by adding two feet to the island and reducing the parking space length  by two feet. Put in 4" curb and permit overhang. Set back the shrubs, trees, etc. This permits less paved area, adequate parking space, no trip hazards, less problem at snow removal time, less replacement costs for wheel stops.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close