U.S. Department of Transportation
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC 20590
202-366-4000
Definition: Grade length if 116. Vertical Alignment Feature Type is "Vertical gradient." Length does not include any portion of a vertical curve. Leave blank if record concerns a sag or crest vertical curve.
Attributes: Feet
Priority: Critical
HPMS/Tool Requirements: HSM/IHSDM (Required)