Fl-4923 over Unammed Waterway
Otero County, New Mexico · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Fl-4923 over Unammed Waterway in Otero 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 2013, making it 12 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.
- 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 → (32.88559, -105.96019)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 7 | Good condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 32 ft |
| Location | 1.3 Mi N Jct US 70/Alamog |
| NBI structure number | 000000000009624 |
| Condition class | Good |
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.