Nm-55 over Unnamed Waterway
Torrance County, New Mexico · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Nm-55 over Unnamed Waterway in Torrance County, New Mexico, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 7 (good condition) on the 0-9 scale.
- It was built in 1952, making it 73 years old at the 2025 inventory.
- It carries about 303 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 29 of the 70 inventoried bridges in Torrance County rated good (41.4%); 4 (5.7%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated November 2024, on a 48-month routine inspection cycle.
- A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.
View this bridge on a map → (34.62132, -106.29906)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Culvert | 7 | 7 | Good condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 22 ft |
| Location | 9.20 Mi N of US-60/MTNAIR |
| NBI structure number | 000000000005607 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | November 2024 |
| Inspection interval (item 91) | 48 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
Source: FHWA National Bridge Inventory, 2025 data as reported by the New Mexico department of transportation.
Busiest bridges in Torrance County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-40 Ebl/wbl over Martin Road | 1969 | 28,807 | Fair |
| I-40 Ebl/wbl over Unnamed Waterway | 1969 | 28,433 | Good |
| I-40 Ebl over Salt Draw | 1970 | 28,433 | Fair |
| I-40 Wbl over Salt Draw | 1970 | 28,433 | Good |
| I-40 Ebl/wbl over Unnamed Waterway | 1970 | 28,395 | Good |
| I-40 Eb/wb over Unnamed Waterway | 1969 | 27,229 | Fair |
All bridges nearby: Torrance County, NM bridge conditions · every bridge in Torrance County · New Mexico bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.