Tr 181 over Richland Creek
Shelby County, Illinois · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Tr 181 over Richland Creek in Shelby County, Illinois, 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 1909, making it 116 years old at the 2025 inventory.
- It carries about 50 vehicles a day (traffic count year 2024).
- Its listed owner is a town or township highway agency.
- It is one of 125 of the 335 inventoried bridges in Shelby County rated fair (37.3%); 26 (7.8%) 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 → (39.41165, -88.65671)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 5 | Fair condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 30 ft |
| Location | 3.2 Mi E Middleswrth |
| NBI structure number | 087502900000000 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Illinois department of transportation.
Busiest bridges in Shelby County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Fap 325 (il 16) over Swafford Branch | 1991 | 8,200 | Fair |
| Fap 325(IL 16) over Kaskaskia River | 1975 | 6,500 | Fair |
| Fap 325(ILL 16) over Robinson Creek | 1967 | 5,200 | Fair |
| Fap 325(ILL 16) over Stream | 1924 | 4,800 | Fair |
| US 51 (fap 322) over Long Grove CR. | 2002 | 4,800 | Fair |
| US 51 (fap 322) over Long Grove CR. | 2002 | 4,800 | Fair |
All bridges nearby: Shelby County, IL bridge conditions · every bridge in Shelby County · Illinois bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.