Il 160 over Plum Creek Branch
Washington County, Illinois · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Il 160 over Plum Creek Branch in Washington County, Illinois, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 8 (very good condition) on the 0-9 scale.
- It was built in 2009, making it 16 years old at the 2025 inventory.
- It carries about 950 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 116 of the 234 inventoried bridges in Washington County rated good (49.6%); 14 (6.0%) 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 → (38.40682, -89.51795)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Superstructure | 8 | Very good condition |
| Substructure | 8 | Very good condition |
Bridge details
| Structure | Concrete frame |
| Length | about 29 ft |
| Location | 1.6MI W Addieville |
| NBI structure number | 095007800000000 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Illinois department of transportation.
Busiest bridges in Washington County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Fai 64 EB over Kaskaskia River | 1971 | 15,500 | Fair |
| Fai 64 WB over Kaskaskia River | 1971 | 15,500 | Fair |
| Fai 64 EB over Kaskaskia R Overflow | 1969 | 15,500 | Good |
| Fai 64 WB over Kaskaskia R Overflow | 1969 | 15,500 | Good |
| Fai 64 WB over Plum Creek | 1969 | 15,500 | Fair |
| Fai 64 EB over Plum Creek | 1969 | 15,500 | Fair |
All bridges nearby: Washington County, IL bridge conditions · every bridge in Washington County · Illinois bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.