Ill 135 over Cedar CR Overflow
Warren County, Illinois · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Ill 135 over Cedar CR Overflow in Warren County, Illinois, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1987, making it 38 years old at the 2025 inventory.
- It carries about 1,200 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 49 of the 199 inventoried bridges in Warren County rated fair (24.6%); 15 (7.5%) 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 May 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 → (41.01731, -90.74623)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 5 | 5 | Fair condition |
| Superstructure | 5 | 5 | Fair condition |
| Substructure | 5 | 5 | Fair condition |
Bridge details
| Structure | Continuous steel stringer or multi-beam girder |
| Length | about 89 ft |
| Location | .5 Mi N Little York |
| NBI structure number | 094003100000000 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | May 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 Warren County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 34 Il 164 Il 1 over Cedar CR Trib | 1964 | 9,450 | Poor |
| US 34 over Cedar Creek Trib | 1985 | 8,950 | Poor |
| US 34 over Tr 206 (150TH St) | 1985 | 8,950 | Fair |
| US 34 over Trib to Cedar CR | 1986 | 8,950 | Fair |
| US 34 over Trib to Cedar CR | 1986 | 8,950 | Fair |
| US 34 over Cedar Creek | 2023 | 8,950 | Good |
All bridges nearby: Warren County, IL bridge conditions · every bridge in Warren County · Illinois bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.