County Road 44.6 over School House Gulch
Lincoln County, Colorado · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- County Road 44.6 over School House Gulch in Lincoln County, Colorado, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1935, making it 90 years old at the 2025 inventory.
- It carries about 14 vehicles a day (traffic count year 2020).
- Its listed owner is the county highway agency.
- It is one of 10 of the 127 inventoried bridges in Lincoln County rated poor (7.9%); 10 (7.9%) are rated poor.
- A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.
View this bridge on a map → (38.9062, -103.24683)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 5 | Fair condition |
| Superstructure | 6 | Satisfactory condition |
| Substructure | 4 | Poor condition |
Bridge details
| Structure | Concrete tee beam |
| Length | about 28 ft |
| Location | 2.5 Mi SE of Boyero |
| NBI structure number | LIN-44.6-2D.8 |
| Condition class | Poor |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Colorado department of transportation.
Busiest bridges in Lincoln County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I 70 Ml+front Rd over Draw | 1975 | 14,291 | Fair |
| Ramp to US 24 over Kyle RR R | 1975 | 12,000 | Good |
| I 70 Ml over Draw | 1955 | 10,000 | Fair |
| US 24 Ml over I 70 Ml | 1975 | 7,500 | Fair |
| I 70 Ml Wbnd over US 24 Ml | 1975 | 7,000 | Fair |
| I 70 Ml Ebnd over US 24 Ml | 1975 | 7,000 | Fair |
All bridges nearby: Lincoln County, CO bridge conditions · every bridge in Lincoln County · Colorado bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.