Tr 94A over Negro Creek
Warren County, Illinois · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Tr 94A over Negro Creek in Warren County, Illinois, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 7 (good condition) on the 0-9 scale.
- It was built in 1979, making it 46 years old at the 2025 inventory.
- It carries about 100 vehicles a day (traffic count year 2021).
- Its listed owner is a town or township highway agency.
- It is one of 135 of the 199 inventoried bridges in Warren County rated good (67.8%); 15 (7.5%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its class is unchanged from 2024 (good), but component ratings moved: substructure 8 to 7.
- Its most recent inspection on record is dated January 2025, on a 48-month routine inspection cycle.
- 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 → (40.74926, -90.63486)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 8 | 8 | Very good condition |
| Superstructure | 8 | 8 | Very good condition |
| Substructure | 8 | 7 | Good condition |
Bridge details
| Structure | Prestressed concrete multiple box beam |
| Length | about 64 ft |
| Location | Sw-21-t9nr2w |
| NBI structure number | 094462000000000 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | January 2025 |
| Inspection interval (item 91) | 48 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
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.