Tr 84B over Ida Creek
Livingston County, Illinois · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Tr 84B over Ida Creek in Livingston 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 1975, making it 50 years old at the 2025 inventory.
- It carries about 20 vehicles a day (traffic count year 2023).
- Its listed owner is a town or township highway agency.
- It is one of 235 of the 579 inventoried bridges in Livingston County rated fair (40.6%); 46 (7.9%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated August 2023, on a 24-month routine inspection cycle.
- 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 → (40.97492, -88.71986)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 8 | 8 | Very good condition |
| Superstructure | 8 | 8 | Very good condition |
| Substructure | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Concrete slab |
| Length | about 33 ft |
| Location | 2395N 1100E |
| NBI structure number | 053342100000000 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | August 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Illinois department of transportation.
Busiest bridges in Livingston County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Fai 55 over Wolf Creek | 1976 | 22,300 | Good |
| Fai-55 & E975 N Rd over Drainage Ditch | 1977 | 21,000 | Fair |
| I-55 over Stream | 1977 | 21,000 | Good |
| Ill 116 over Turtle Creek | 1941 | 12,300 | Good |
| I-55 SB over Norfolk & So. RR | 2011 | 11,450 | Fair |
| I-55 NB over Norfolk & So RR | 2011 | 11,450 | Fair |
All bridges nearby: Livingston County, IL bridge conditions · every bridge in Livingston County · Illinois bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.