Fas 1575/CO Rd 408 over West Muddy Creek
Frontier County, Nebraska · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Fas 1575/CO Rd 408 over West Muddy Creek in Frontier County, Nebraska, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 8 (very good condition) on the 0-9 scale.
- It was built in 1970, making it 55 years old at the 2025 inventory.
- It carries about 100 vehicles a day (traffic count year 2011).
- Its listed owner is the county highway agency.
- It is one of 57 of the 95 inventoried bridges in Frontier County rated good (60.0%); 17 (17.9%) 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 → (40.6556, -100.2143)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 8 | Very good condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 33 ft |
| Location | Jct N23/n23s 16E 1.8N |
| NBI structure number | C003205905P |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Nebraska department of transportation.
Busiest bridges in Frontier County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US83 over Frazier Creek | 1957 | 1,745 | Fair |
| US83 over Brushy Creek | 1955 | 1,745 | Poor |
| N23 over Medicine Creek | 1950 | 1,535 | Good |
| N23 over Wells Canyon | 1948 | 1,535 | Good |
| N23 over Stream | 1959 | 1,060 | Good |
| N23 over Fox Creek | 2013 | 955 | Good |
All bridges nearby: Frontier County, NE bridge conditions · every bridge in Frontier County · Nebraska bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.