Fas 686 over Trib of Mill Creek
Clark County, Illinois · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Fas 686 over Trib of Mill Creek in Clark County, Illinois, 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 1909, making it 116 years old at the 2025 inventory.
- It carries about 375 vehicles a day (traffic count year 2021).
- Its listed owner is the county highway agency.
- It is one of 143 of the 231 inventoried bridges in Clark County rated good (61.9%); 9 (3.9%) 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 → (39.47772, -87.84869)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 8 | Very good condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 26 ft |
| Location | 3.5 Mi NW Clarksvill |
| NBI structure number | 012327500000000 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Illinois department of transportation.
Busiest bridges in Clark County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-70 over E Mill Creek Trib | 1969 | 23,400 | Fair |
| I-70 over E Mill Creek | 1969 | 23,400 | Fair |
| I-70 over E Mill Creek | 1969 | 23,400 | Fair |
| I-70 over Kettering Branch | 1968 | 23,400 | Fair |
| Fai 70 over Ditch | 1971 | 23,400 | Fair |
| I-70 over Stream | 1968 | 22,800 | Good |
All bridges nearby: Clark County, IL bridge conditions · every bridge in Clark County · Illinois bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.