Skip to main content
U.S. flag

An official website of the United States government

This site is currently in beta, and your feedback is helping shape its ongoing development.

Return to search results

Bridge and Tunnel Entrances 1999

Published by D.C. Office of the Chief Technology Officer | District of Columbia | Metadata Last Checked: January 27, 2026 | Last Modified: 2021-12-13T18:10:24.000Z
Bridges, overpasses, tunnel entrances, and underpasses captured in 1999. This dataset was collected as part of the planimetric mapping project. Hidden features were added as enhancements to this dataset.

data.gov

An official website of the GSA's Technology Transformation Services

Looking for U.S. government information and services?
Visit USA.gov