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Related Articles


Road smoothness

Road smoothness

Road smoothness

Any one has come across road smoothness requirements, 1/4" in 10' and 1/8" in 1'?

RE: Road smoothness

What you call smoothness is also typical in specifications (1/4" in 10' is in our state DOT spec.) The biggest concern is usually "bird-baths" (spots that would collect a pocket of water (ice)).

RE: Road smoothness

Thanks for reply. Can you point out what state and where can I find specifications?

RE: Road smoothness

Thanks. It was a big help.

RE: Road smoothness

You are looking for pavement surface profiling. It is done with a straightedge or profilograph.

Here is a link to the Connecticut Department of Transportation requirements. These appear to only apply to concrete pavement, so you might have to contact them for flexible pavement criteria....

Connecticut DOT Surface Profile

RE: Road smoothness

Yes. It is for surface profiling. Thanks for information.

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