Looking for information about the pavement smoothness specifications in the United States? You've come the right place! With just a few clicks, you should find what you're looking for... if not, please let us know.

For a quick lookup of the current pavement smoothness specifications for a particular state, use the following map or select the state from the drop-down menu and Go!
Want to know more about smoothness specifications? Please browse through the side bar menu on the left.

State

New Hampshire

Specification	HMA	PCC
Testing Device	GM Profilometer	N/A
Smoothness Index	RN	N/A
Blanking Band	N/A	N/A
Incentive/Disincentive	Both	N/A
Localized Roughness Provision	Yes	N/A
Files	NH_HMA_1_1.pdf	N/A

Please Note: The pavement smoothness specifications listed above represent the most "advanced" specifications available in each state. These specifications may or may not be applied to every project as some specifications are currently in the pilot phase of implementation. Please contact a state highway agency representative to determine the status of a particular specification. If you are a state highway agency representative and wish to provide updated information for this website, please contact us.