Tr-304 over Little Salt Creek
Effingham County, Illinois · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Tr-304 over Little Salt Creek in Effingham County, Illinois, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 3 (serious condition) on the 0-9 scale.
- It was built in 1909, making it 116 years old at the 2025 inventory.
- It carries about 50 vehicles a day (traffic count year 2023).
- Its listed owner is a town or township highway agency.
- It is one of 12 of the 254 inventoried bridges in Effingham County rated poor (4.7%); 12 (4.7%) are rated poor.
- Its traffic status in the 2025 inventory is posted for load (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated November 2024, on a 24-month routine inspection cycle.
- It has fracture-critical members (NBI item 92A): steel tension members without a redundant load path, which get their own scheduled inspections.
- 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 → (39.09591, -88.43601)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 3 | 3 | Serious condition |
| Substructure | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Steel through truss |
| Length | about 49 ft |
| Location | 3 Mi NW Dieterich |
| NBI structure number | 025313800000000 |
| Condition class | Poor |
| Traffic status (item 41) | Posted for load |
| Last inspection (item 90) | November 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
| Fracture critical (item 92A) | Yes |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Illinois department of transportation.
Busiest bridges in Effingham County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Fai-70 over Second Salt Ck | 1960 | 25,800 | Fair |
| Fap-774 (il-32/33) over Fai-70 | 1959 | 23,900 | Fair |
| Fai-70 over Big Creek | 1962 | 23,900 | Fair |
| Fai-70 over Coon Creek | 1961 | 23,700 | Fair |
| FAI57 SB / 70 WB over US 45 & Cn RR | 2015 | 22,500 | Fair |
| Fai 57 NB / 70 EB over US 45 & Cn RR | 2015 | 22,500 | Fair |
All bridges nearby: Effingham County, IL bridge conditions · every bridge in Effingham County · Illinois bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.