US 67 / Il 100 over Illinois River
Cass County, Illinois · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- US 67 / Il 100 over Illinois River in Cass County, Illinois, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 2 (critical condition) on the 0-9 scale.
- It was built in 1955 and reconstructed in 1985, making it 70 years old at the 2025 inventory.
- It carries about 5,600 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 13 of the 76 inventoried bridges in Cass County rated poor (17.1%); 13 (17.1%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its class is unchanged from 2024 (poor), but component ratings moved: superstructure 3 to 2.
- Its most recent inspection on record is dated June 2024, on a 12-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 → (40.01488, -90.4467)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 5 | 5 | Fair condition |
| Superstructure | 3 | 2 | Critical condition |
| Substructure | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Continuous steel through truss |
| Length | about 3,686 ft |
| Location | W Edge Beardstown |
| NBI structure number | 009000100000000 |
| Condition class | Poor |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | June 2024 |
| Inspection interval (item 91) | 12 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 Cass County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Il 125 over BNSF RR | 1956 | 6,600 | Fair |
| Il 125 over Lost Creek | 2001 | 3,900 | Good |
| Il 125 over Trib to Lost Creek | 2009 | 3,500 | Good |
| Il 125 over Trib to Lost Creek | 2009 | 3,500 | Good |
| Il 78 over Prairie Creek | 1998 | 2,050 | Good |
| Fas 579 over Mannel Branch | 1964 | 1,900 | Fair |
All bridges nearby: Cass County, IL bridge conditions · every bridge in Cass County · Illinois bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.