County Road 170 over East Bijou Creek
Elbert County, Colorado · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- County Road 170 over East Bijou Creek in Elbert County, Colorado, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 3 (serious condition) on the 0-9 scale.
- It was built in 1919 and reconstructed in 1991, making it 106 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 5 of the 85 inventoried bridges in Elbert County rated poor (5.9%); 5 (5.9%) are rated poor.
- Its traffic status in the 2025 inventory is closed to all traffic (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Status change: newly closed since 2024.
- Its most recent inspection on record is dated November 2023, on a 24-month routine inspection cycle.
- 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 → (39.4769, -103.97467)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 5 | 5 | Fair condition |
| Superstructure | 5 | 5 | Fair condition |
| Substructure | 3 | 3 | Serious condition |
Bridge details
| Structure | Continuous steel stringer or multi-beam girder |
| Length | about 70 ft |
| Location | 1.5 Miles W of Agate |
| NBI structure number | ELBT-170-0.9-01 |
| Condition class | Poor |
| Traffic status (item 41) | Closed to all traffic |
| Last inspection (item 90) | November 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Colorado department of transportation.
Busiest bridges in Elbert County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I 70 ML I 70 Serv over Draw | 1966 | 11,000 | Fair |
| I 70 Ml over Draw | 1966 | 11,000 | Fair |
| SH 86 Ml over Running Creek | 1977 | 11,000 | Fair |
| I 70 ML I 70 Serv over Draw | 1958 | 11,000 | Fair |
| SH 86 Ml over Gold Creek | 1977 | 9,100 | Fair |
| I 70 Ml Wbnd over County Road 190 Draw | 1966 | 5,500 | Fair |
All bridges nearby: Elbert County, CO bridge conditions · every bridge in Elbert County · Colorado bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.