Tunnels by NHS and State

U.S Department of Transportation

Updated Oct 25, 2026

About this dataset

This summary tables provides annual counts of tunnels on and off the National Highway System (NHS) by States and territories beginning in 2018.

CSV
Tunnels by NHS and State
Modified Oct 25, 2026Table and Data API available
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JSON
Tunnels by NHS and State
Modified Aug 25, 2026
Open link: Tunnels by NHS and State
XSL
Tunnels by NHS and State
Modified Aug 25, 2026
Open link: Tunnels by NHS and State

Prototype by Datopian · not an official government website · data from data.virginia.gov