Nm-39 over Unnamed Waterway
Harding County, New Mexico · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Nm-39 over Unnamed Waterway in Harding County, New Mexico, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1942, making it 83 years old at the 2025 inventory.
- It carries about 248 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 6 of the 13 inventoried bridges in Harding County rated fair (46.2%); 0 (0.0%) 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 February 2024, on a 24-month routine inspection cycle.
- A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.
View this bridge on a map → (35.52798, -103.55047)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Culvert | 5 | 5 | Fair condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 23 ft |
| Location | 13.8 Mi N of Jct US-54 |
| NBI structure number | 000000000005110 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | February 2024 |
| Inspection interval (item 91) | 24 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 Harding County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Nm-39 over Unnamed Waterway | 1942 | 248 | Fair |
| Nm-39 over Unnamed Waterway | 1953 | 248 | Good |
| Nm-39 over Ute Creek | 1976 | 248 | Fair |
| Nm-120 over Canadian River | 2012 | 224 | Good |
| Nm-39 over Mosquero Creek | 2017 | 138 | Good |
| Nm-102 over Tequesquite Creek | 2020 | 80 | Fair |
All bridges nearby: Harding County, NM bridge conditions · every bridge in Harding County · New Mexico bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.