Il 104 over Illinois River
Pike County, Illinois · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Il 104 over Illinois River in Pike County, Illinois, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 2018, making it 7 years old at the 2025 inventory.
- It carries about 2,800 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 220 of the 332 inventoried bridges in Pike County rated fair (66.3%); 34 (10.2%) 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 → (39.83144, -90.56985)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 8 | Very good condition |
| Substructure | 6 | Satisfactory condition |
Bridge details
| Structure | Continuous steel through arch |
| Length | about 2,127 ft |
| Location | Meredosia |
| NBI structure number | 069052500000000 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Illinois department of transportation.
Busiest bridges in Pike County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-72 / US 36 over Miss R/bnrr/nsrr/st | 1999 | 16,500 | Poor |
| I-72 over Trib Blue Creek | 1988 | 9,900 | Good |
| I-72 over Drainage Ditch | 1988 | 9,410 | Good |
| I-72 over Drainage Ditch | 1986 | 9,400 | Fair |
| I-72 over Drainage Ditch | 1986 | 9,400 | Fair |
| I-72 / US 36 over Drainage Ditch | 1986 | 9,400 | Fair |
All bridges nearby: Pike County, IL bridge conditions · every bridge in Pike County · Illinois bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.