Fl-4923 over Alamogordo Bypass US-54
Otero County, New Mexico · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Fl-4923 over Alamogordo Bypass US-54 in Otero County, New Mexico, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
- It was built in 2002, making it 23 years old at the 2025 inventory.
- It carries about 23,689 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 48 of the 131 inventoried bridges in Otero County rated good (36.6%); 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 September 2023, on a 24-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 → (32.87365, -105.96519)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Continuous prestressed concrete stringer or multi-beam girder |
| Length | about 185 ft |
| Location | 0.32 M E Jct US54/US-70 |
| NBI structure number | 000000000009084 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | September 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | N: not over a waterway |
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 Unammed Waterway | 2013 | 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.