Fau 7355 over Lake Decatur
Macon County, Illinois · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Fau 7355 over Lake Decatur in Macon County, Illinois, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 2 (critical condition) on the 0-9 scale.
- It was built in 1957, making it 68 years old at the 2025 inventory.
- It carries about 2,200 vehicles a day (traffic count year 2023).
- Its listed owner is the county highway agency.
- It is one of 54 of the 346 inventoried bridges in Macon County rated poor (15.6%); 54 (15.6%) are rated poor.
- Its traffic status in the 2025 inventory is posted for load (NBI item 41).
- Its class is unchanged from 2024 (poor), but component ratings moved: deck 2 to 3.
- Status change: newly posted for load since 2024.
- Its most recent inspection on record is dated August 2024, 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 → (39.88266, -88.86463)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 2 | 3 | Serious condition |
| Superstructure | 3 | 3 | Serious condition |
| Substructure | 2 | 2 | Critical condition |
Bridge details
| Structure | Continuous steel stringer or multi-beam girder |
| Length | about 299 ft |
| Location | Lk Decatur W Side |
| NBI structure number | 058303200000000 |
| Condition class | Poor |
| Traffic status (item 41) | Posted for load |
| Last inspection (item 90) | August 2024 |
| 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 Macon County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Fap 322(US 51) over I-72 | 2011 | 24,400 | Fair |
| US 51 NB (fap 710) over Lake Decatur | 1962 | 22,400 | Fair |
| US 51 SB (fap 710) over Lake Decatur | 1971 | 22,400 | Fair |
| US 36(FAP 320) over Lake Shore Dr(u 7390 | 1954 | 20,900 | Poor |
| US 36(FAP 320) over Lake Decatur | 1955 | 20,900 | Fair |
| Fap 320(IL 121) over NS RR | 1991 | 18,900 | Fair |
All bridges nearby: Macon County, IL bridge conditions · every bridge in Macon County · Illinois bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.