Tr 1A(LAKE Fork Rd over Friends Creek
Macon County, Illinois · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Tr 1A(LAKE Fork Rd over Friends Creek in Macon County, Illinois, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 0 (failed condition, out of service) on the 0-9 scale.
- It was built in 1978, making it 47 years old at the 2025 inventory.
- It carries about 25 vehicles a day (traffic count year 2020).
- Its listed owner is a town or township 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 closed to all traffic (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated January 2025, 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 → (40.05535, -88.79823)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 0 | 0 | Failed condition, out of service |
| Superstructure | 0 | 0 | Failed condition, out of service |
| Substructure | 0 | 0 | Failed condition, out of service |
Bridge details
| Structure | Prestressed concrete multiple box beam |
| Length | about 48 ft |
| Location | 5.3 Mi N of Argenta |
| NBI structure number | 058320800000000 |
| Condition class | Poor |
| Traffic status (item 41) | Closed to all traffic |
| Last inspection (item 90) | January 2025 |
| 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.