New Mexico has 4,033 bridges on public roads, according to the FHWA National Bridge Inventory. Of those, 172 are rated in poor condition — a rate of 4.3% — below the national average of 6.7%. Another 2,505 are in fair condition, while 1,356 are in good condition.
Use the interactive New Mexico bridge map below to explore every bridge, color-coded by condition. Click any cluster to zoom in, then click an individual bridge for its route, structural ratings, year built, daily traffic, and last inspection date. Filter by condition using the checkboxes, or switch to satellite view to see bridges from above. For a national comparison, see the full US bridges interactive map.
New Mexico Bridge Conditions by the Numbers
- 4,033 total bridges on public roads in New Mexico
- 172 in poor condition (4.3%) — below the national average of 6.7%
- 2,505 in fair condition (62.1%)
- 1,356 in good condition (33.6%)
- Oldest bridge in the inventory: 17-17033, built 1908
Oldest Bridges in New Mexico
The oldest bridges in New Mexico date back to the 1900s. The ten oldest New Mexico bridges still in the national inventory:
| Route / Facility | Crosses | Year Built | Condition |
|---|---|---|---|
| 17-17033 | COLD SPRING CANYON | 1908 | Fair |
| FL-4658 | GALLINAS RIVER | 1909 | Fair |
| FL-5663 | PAJARITO ARROYO | 1911 | Fair |
| FL-5661 | ARROYO HERMANOS | 1911 | Fair |
| New Mexico Ave | LA MANTECA ARROYO | 1912 | Fair |
| Levee road | Rio Grande River | 1915 | Poor |
| FL-5788 | ARROYO DE LAS MASCARAS | 1920 | Fair |
| NM-293 | UNNAMED WATERWAY | 1920 | Fair |
| 31-0012 | Rio Nutria | 1920 | Fair |
| NM-320 | IRRIGATION CANAL | 1923 | Poor |
Most Concerning New Mexico Bridges: Poor Condition and High Traffic
The bridges of greatest concern combine a poor structural rating with high daily traffic loads. These New Mexico bridges carry the most vehicles per day while rated in poor condition:
| Route / Facility | Crosses | Daily Traffic | Year Built | Deck | Superstructure | Substructure |
|---|---|---|---|---|---|---|
| I-25 NBL | Gibson Blvd | 119,665 vehicles/day | 1961 | Fair (5) | Poor (4) | Poor (4) |
| I-40 EBL | Tijeras Arroyo | 50,642 vehicles/day | 1978 | Satisfactory (6) | Poor (4) | Fair (5) |
| I-40 WBL | Tijeras Arroyo | 50,642 vehicles/day | 1978 | Satisfactory (6) | Poor (4) | Fair (5) |
| FL-4018 | I-25 NB/SB | 42,600 vehicles/day | 1961 | Satisfactory (6) | Poor (4) | Satisfactory (6) |
| I-40 EBL | Sedillo Hill Road | 34,941 vehicles/day | 1976 | Good (7) | Satisfactory (6) | Poor (4) |
How New Mexico Bridge Conditions Are Assessed
Bridge condition in the NBI is determined by ratings of three structural components — deck, superstructure, and substructure — on a scale of 0 (failed) to 9 (excellent). A bridge is classified as good when all three components score 7 or above. It is classified as poor when any component scores 4 or below. Ratings of 5 or 6 on any component with no component below 5 result in a fair classification. NMDOT coordinates inspections across New Mexico in line with FHWA standards, with most bridges inspected on a 24-month cycle.
Frequently Asked Questions
How many bridges in New Mexico are in poor condition?
172 of New Mexico’s 4,033 bridges are currently rated in poor condition by the FHWA National Bridge Inventory, a rate of 4.3%.
What is the oldest bridge in
The oldest bridge recorded in New Mexico’s NBI inventory is 17-17033, built in 1908.
What does a poor bridge rating mean?
A poor rating means at least one of a bridge’s three key structural components — deck, superstructure, or substructure — has been rated 4 or below on the NBI 0-9 scale. A rating of 4 is defined as “poor condition,” and ratings of 3, 2, 1, or 0 indicate increasingly serious deterioration. Poor-rated bridges are not necessarily unsafe or closed, but they require priority attention and monitoring.
View all 624,000+ US bridges on the national interactive map
Compare with neighboring states: Arizona bridges map | Colorado bridges map | Oklahoma bridges map | Texas bridges map | Utah bridges map
