Fl-4920 over Mckinley Ditch
Otero County, New Mexico · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Fl-4920 over Mckinley Ditch in Otero County, New Mexico, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1940, making it 85 years old at the 2025 inventory.
- It carries about 7,578 vehicles a day (traffic count year 2023).
- Its listed owner is a city or municipal highway agency.
- It is one of 83 of the 131 inventoried bridges in Otero County rated fair (63.4%); 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 June 2023, 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 → (32.90443, -105.9257)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 5 | 5 | Fair condition |
| Superstructure | 5 | 5 | Fair condition |
| Substructure | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Prestressed concrete tee beam |
| Length | about 27 ft |
| Location | 1.2 MI N 1st/Alamogordo |
| NBI structure number | 000000000007052 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | June 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | U: unknown foundation, not evaluated for scour |
Source: FHWA National Bridge Inventory, 2025 data as reported by the New Mexico department of transportation.
Busiest bridges in Otero County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Fl-4923 over Unnamed Waterway | 1934 | 23,689 | Fair |
| Fl-4923 over Unnamed Waterway | 1934 | 23,689 | Fair |
| Fl-4923 over Unnamed Waterway | 1934 | 23,689 | Fair |
| US-54/70 SB over Union Pacific Railroad | 1975 | 23,689 | Fair |
| US-54/70 Nbl over Union Pacific Railroad | 1975 | 23,689 | Fair |
| Fl-4923 over Alamogordo Bypass US-54 | 2002 | 23,689 | Good |
All bridges nearby: Otero County, NM bridge conditions · every bridge in Otero County · New Mexico bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.