Il 161 over Kaskaskia R Overflow
Clinton County, Illinois · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Il 161 over Kaskaskia R Overflow in Clinton 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 1994, making it 31 years old at the 2025 inventory.
- It carries about 2,250 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 106 of the 190 inventoried bridges in Clinton County rated good (55.8%); 13 (6.8%) 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 → (38.53624, -89.40859)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 8 | Very good condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 35 ft |
| Location | 2.6 M East Bartelso |
| NBI structure number | 014201200000000 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Illinois department of transportation.
Busiest bridges in Clinton County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Fai 64 over Trib to Queens Lake | 1973 | 31,000 | Good |
| Fai 64 EB over Sugar Ck Overflow | 1971 | 15,500 | Fair |
| Fai 64 WB over Sugar Ck Overflow | 1971 | 15,500 | Good |
| Fai 64 EB over Sugar Creek | 1970 | 15,500 | Fair |
| Fai 64 WB over Sugar Creek | 1970 | 15,500 | Good |
| Fai 64 EB over Sycamore Drainage Dt | 1970 | 15,500 | Good |
All bridges nearby: Clinton County, IL bridge conditions · every bridge in Clinton County · Illinois bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.