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State Highway Administration

Highway Needs Inventory

The Highway Needs Inventory (HNI) is a long term, financially unconstrained technical reference and planning document which identifies highway improvements to serve existing and projected population and economic activity in the state. Development of the HNI is required under Transportation Article 8 of the Annotated Code of Maryland and is the responsibility of Regional and Intermdodal Planning Division. The HNI serves as the source document for SHA's portion of the Maryland Department of Transportation's Capital Program, the Consolidated Transportation Program (CTP). The Regional and Intermodal Planning Division (RIPD) work with the counties, the Districts, Highway Information Services Division, Project Planning Division, Office of Traffic and Safety and the Office of Real Estate to develop the project information for the HNI.

For more detailed information on the HNI click on HNI Overview. (PDF, 47kb)

For specific Highway Needs information click on the County you are interested in below, or click on All Counties for the entire document. Please note, the Highway Needs Inventory is a very large document and some counties may take a few moments to open.

COUNTY Link Document Type Document Size (kb)
Allegany       PDF 184
Anne Arundel PDF 594
Baltimore  PDF 796
Calvert PDF 517
Caroline   PDF 151
Carroll  PDF 586
Cecil  PDF 184
Charles PDF 573
Dorchester PDF 198
Frederick PDF 714
Garrett  PDF 195
Harford  PDF 627
Howard  PDF 614
Kent  PDF 170
Montgomery PDF 766
Prince George's  PDF 742
Queen Anne's  PDF 179
St. Mary's PDF 514
Somerset PDF 172
Talbot   PDF 176
Washington   PDF 219
Wicomico   PDF 163
Worcester   PDF 173

For Further Information please contact the Highway Needs Inventory Coordinator at:

Mailing Address:
Highway Needs Inventory Coordinator
Maryland State Highway Administration
Regional and Intermodal Planning Division
Mail Stop C-502
P.O. Box 717
Baltimore, MD 21203-0717

Telephone: 410-545-5675 or toll-free at
Fax: 410-209-5025
E-mail: [email protected]

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Maryland Department of Transportation


707 North Calvert Street Baltimore, Maryland 21202