Il 4-fap 686 over Rattlesnake Creek
Jackson County, Illinois · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Il 4-fap 686 over Rattlesnake Creek in Jackson County, Illinois, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 2004, making it 21 years old at the 2025 inventory.
- It carries about 1,150 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 62 of the 228 inventoried bridges in Jackson County rated fair (27.2%); 16 (7.0%) 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 → (37.87819, -89.38578)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 6 | Satisfactory condition |
| Superstructure | 7 | Good condition |
| Substructure | 8 | Very good condition |
Bridge details
| Structure | Continuous steel stringer or multi-beam girder |
| Length | about 145 ft |
| Location | 4.3 Mi W Il 13/127 |
| NBI structure number | 039006800000000 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Illinois department of transportation.
Busiest bridges in Jackson County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Il 13 WB over Crab Orchard Creek | 1995 | 25,800 | Good |
| Ill 13 WB over Crab Orchard CR Ovfl | 1995 | 25,800 | Good |
| Il 13 EB over Crab Orchard Creek | 2021 | 25,800 | Good |
| Il 13 EB over Crab Orchard Creek | 2021 | 25,800 | Good |
| Ill Rte 13 over Trib-piles Fork Crk. | 1948 | 25,500 | Fair |
| Il Rte 13 over Little Crab Orchard | 2007 | 21,600 | Fair |
All bridges nearby: Jackson County, IL bridge conditions · every bridge in Jackson County · Illinois bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.