Tr-255 over Sutton Creek
Clay County, Illinois · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Tr-255 over Sutton Creek in Clay County, Illinois, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1969, making it 56 years old at the 2025 inventory.
- It carries about 50 vehicles a day (traffic count year 2021).
- Its listed owner is a town or township highway agency.
- It is one of 24 of the 167 inventoried bridges in Clay County rated poor (14.4%); 24 (14.4%) 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 January 2023, on a 24-month routine inspection cycle.
- A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.
View this bridge on a map → (38.73809, -88.67312)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 6 | Satisfactory condition |
| Superstructure | 5 | 5 | Fair condition |
| Substructure | 4 | 4 | Poor condition |
Bridge details
| Structure | Steel stringer or multi-beam girder |
| Length | about 30 ft |
| Location | 2.5 Mi SW Oskaloosa |
| NBI structure number | 013316600000000 |
| Condition class | Poor |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | January 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 Clay County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Fap-327 (US-50) over Stream | 1969 | 5,200 | Fair |
| Fap 328 (US 45) over Grove Creek | 2009 | 5,200 | Good |
| Fap 328 (US 45) over Buck Creek | 2008 | 5,100 | Fair |
| Fap-327 (US-50 EB) over Elm River | 1965 | 4,950 | Fair |
| Fap-327 (US-50 WB) over Elm River | 1965 | 4,950 | Fair |
| Fap-327 (US-50) over Cxst RR | 1969 | 4,600 | Fair |
All bridges nearby: Clay County, IL bridge conditions · every bridge in Clay County · Illinois bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.