SH 165 Ml over Middle Fk St.charles Rvr
Custer County, Colorado · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- SH 165 Ml over Middle Fk St.charles Rvr in Custer County, Colorado, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1956, making it 69 years old at the 2025 inventory.
- It carries about 200 vehicles a day (traffic count year 2020).
- Its listed owner is the state highway agency.
- It is one of 12 of the 20 inventoried bridges in Custer County rated fair (60.0%); 1 (5.0%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its class is unchanged from 2024 (fair), but component ratings moved: culvert 6 to 5.
- Its most recent inspection on record is dated August 2024, on a 24-month routine inspection cycle.
- A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.
View this bridge on a map → (38.06624, -105.10418)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Culvert | 6 | 5 | Fair condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 32 ft |
| Location | 11.7 Mi SE of Jct SH 96 M |
| NBI structure number | L-16-N |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | August 2024 |
| 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 Custer County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| SH 69 Ml over Democrat Gulch | 1993 | 2,100 | Good |
| SH 69 Ml over Texas Creek | 1906 | 1,800 | Fair |
| SH 69 Ml over Taylor Creek | 1956 | 1,800 | Good |
| SH 69 Ml over Grape Creek | 1956 | 1,800 | Fair |
| SH 96 Ml over Querida Gulch | 1978 | 1,800 | Good |
| SH 96 Ml over Hardscrabble Creek | 1991 | 1,000 | Good |
All bridges nearby: Custer County, CO bridge conditions · every bridge in Custer County · Colorado bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.