Ch 20 over Mudd Creek
Clark County, Illinois · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Ch 20 over Mudd Creek in Clark County, Illinois, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1909 and reconstructed in 1978, making it 116 years old at the 2025 inventory.
- It carries about 200 vehicles a day (traffic count year 2021).
- Its listed owner is the county highway agency.
- It is one of 79 of the 231 inventoried bridges in Clark County rated fair (34.2%); 9 (3.9%) are rated poor.
- 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 → (39.46941, -87.59918)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Culvert | 6 | Satisfactory condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 35 ft |
| Location | 1 Mi NE Dennison |
| NBI structure number | 012321600000000 |
| Condition class | Fair |
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.