Bridge conditions in Union County, New Mexico
68 inventoried bridges · 1 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
1 of the 68 bridges the federal inventory lists in Union County are rated poor; the rest split 37 good and 30 fair.
- 1 of the 68 bridges in Union County, New Mexico, are rated in poor condition (1.5%) in the 2025 National Bridge Inventory, as of .
- 37 bridges (54.4%) are rated good and 30 (44.1%) fair.
- The median Union County bridge was built in 1976.
- The busiest poor-rated bridge is Nm-406 over Road Canyon Draw (built 1957), carrying about 60 vehicles a day.
Good 54.4% · Fair 44.1% · Poor 1.5% of 68 bridges
Bridges rated poor
Every bridge in the county with a poor rating, busiest first. Poor means a major component is rated 4 or lower on FHWA's 0-9 scale; it is a repair flag, not a closure notice.
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Nm-406 over Road Canyon Draw | 1957 | 60 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US-87 over Unnamed Waterway | 1961 | 6,226 | Good |
| US-87 over Unnamed Waterway | 1961 | 6,226 | Good |
| US-64 over Unnamed Waterway | 1937 | 5,229 | Good |
| US-64 over Unnamed Waterway | 1937 | 5,229 | Good |
| US-64 over Unnamed Waterway | 1937 | 5,229 | Fair |
| US-64/87 Ebl/wbl over Unnamed Waterway | 1959 | 4,234 | Good |
| US-64/87 over Unnamed Waterway | 1930 | 4,134 | Fair |
| US-64 over Unnamed Waterway | 1953 | 4,134 | Fair |
| US-64 over Unnamed Waterway | 1979 | 4,134 | Good |
| US-64/87 EB over Unnamed Waterway | 1956 | 4,134 | Good |
Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.
All of New Mexico: New Mexico bridge conditions by county · every download on the data page.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.