New Mexico Bridge Infrastructure: A Complete Analysis

New Mexico is home to 4,033 bridges spanning 33 counties, making it one of the most significant bridge inventories in the country. These bridges carry a combined 40,737,198 vehicle crossings every day. Here is a comprehensive look at the state of New Mexico's bridge infrastructure based on the latest National Bridge Inventory data.

New Mexico earns an overall infrastructure grade of B based on the percentage of its bridges in poor condition. Currently, 172 bridges (4.3%) are rated poor, compared to the national average of 6.7%. The average bridge in New Mexico is 53 years old, older than the national average of 48 years.

Of the state's 4,033 bridges, 1,356 are in good condition, 2,505 are fair, and 172 are poor. View the full breakdown on the [New Mexico report card](/reports/new-mexico).

These are the bridges carrying the highest daily traffic volumes across New Mexico. High-traffic bridges are critical infrastructure -- their condition directly affects the commutes of tens of thousands of drivers.

The following bridges have the lowest sufficiency ratings in New Mexico. These structures are the most likely candidates for federal repair or replacement funding under the Bipartisan Infrastructure Law.

New Mexico's oldest bridges tell the story of the state's transportation history. Some of these structures have been in continuous service for over a century.

New Mexico's bridge infrastructure grade of B reflects both the current condition of the state's bridges and the scale of the challenge ahead. With an average bridge age of 53 years, many of these structures are approaching or past the 50-75 year design life typical of most bridges. The state's ability to maintain and replace aging bridges will determine whether conditions improve or deteriorate in the coming decade.

For county-by-county breakdowns, historical trends, and individual bridge profiles, visit the [New Mexico state page](/bridges/new-mexico) or the [New Mexico report card](/reports/new-mexico). You can also explore how New Mexico compares to other states in our [state rankings](/blog/best-bridge-infrastructure-by-state-2025).